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Bryan Hopkins

Bryan Hopkins

Professor
Plant & Wildlife Sciences

5117 LSB
Provo, UT 84602

Biography

Biography


Married to Carrie Hopkins. Five sons and one daughter. Started at BYU in 2007. Faculty at Univ. of Idaho 2000-2006. Lab Director and Education Director at Servi-Tech, Inc. 1995-2000. Ph.D. from Kansas State Univ. M.S. and B.S. from BYU. A.A.S. Ricks College

Teaching Interests

  • Environmental Chemistry and Physics
  • Soil Science
  • Turfgrass Science

Research Interests

  • Soil
  • Plant Nutrient
  • Water Science

Education

  • Ph.D., Soil Chemistry & Plant Nutrition Agronomy, Kansas State University, 1995

Experience

Academic - Post-Secondary

  • Professor, Brigham Young University, 2001-Present

Memberships

  • Western Education/Extension and Research Activities - Western Regional Turfgrass Working Group (WERA-011; USDA-CSREES), 2018-Present
  • Turfgrass Producers International, 2017-Present
  • Intermountain Sports Turf Managers Association, 2008-Present
  • National Association of Landscape Professionals (NALP-formerly PLANET - Plant and Landscape Network, 2007-Present
  • Sports Turf Managers Association, 2007-Present
  • Western Education/Extension and Research Activities - Western Regional Nutrient Management Working Group (WERA-103; USDA-CSREES), 2000-Present
  • Crop Science Society of America, 1999-Present
  • American Society of Agronomy, 1989-Present
  • Soil Science Society of America, 1989-Present
  • Potato Association of America, 2000-2014

Honors & Awards

  • American Society of Agronomy : Fellow
  • Brigham Young University : Widstoe Fellowship
  • Honeywell : Certificate of Industry Accomplishment for role in developement of fertilizer to replace AN (explosive used in OK City Bombing)
  • BYU Presidents Leadership Council : Mentored Undergraduate Research Recognition (Travis Beckett)
  • Sustainable Ag Research & Education: USDA : Highlighted Project: 2006 SARE Program
  • USDA Western Risk Management Education Program : Model Proposal and Final Report
  • Western Society of Soil Science : 1st Place Graduate Student Poster Presentation (Tom Bowen)
  • Servi-Tech, Inc. : Outstanding Educator (Awarded to instructor receiving highest ranking from continuing education participants)
  • International Potash and Phosphate Institute : J. Fielding Reed Potash and Phosphate Institute Fellowship

Courses Taught

Winter 2019

  • PWS 283: Soil Science Lab Section 001, 002
  • PWS 390R: Special Topics Section 002
  • PWS 402: Soils & Water in Urban Environ Section 001, 002
  • PWS 405: Environmental Chemistry Lab Section 001
  • PWS 494R: Mentored Learning Experience Section 006, 027, 033
  • PWS 697R: Research Section 019
  • PWS 699R: Master's Thesis Section 008

Fall 2018

  • PWS 283: Soil Science Lab Section 001, 002
  • PWS 319: Turf Science Section 001
  • PWS 390R: Special Topics Section 002
  • PWS 494R: Mentored Learning Experience Section 024
  • PWS 699R: Master's Thesis Section 005

Spring 2018

  • PWS 494R: Mentored Learning Experience Section 015
  • PWS 699R: Master's Thesis Section 008

Winter 2018

  • PWS 283: Soil Science Lab Section 001, 002
  • PWS 390R: Special Topics Section 002
  • PWS 402: Soils & Water in Urban Environ Section 001, 002
  • PWS 494R: Mentored Learning Experience Section 007
  • PWS 560: Quantitative Environ Chemistry Section 001
  • PWS 598R: Adv Topics in PWS Section 005

Research Interests

Soil, Plant Nutrient, and Water Science

Teaching Interests

Environmental Chemistry and Physics; Soil Science; Turfgrass Science

Education

  • Ph.D., Soil Chemistry & Plant Nutrition / Agronomy , institution ( 1995-01-01 - 1995-12-31 )

Licenses and Certifications

  • Soil Science Society of America, Certified Professional Soil Scientist

Honors and Awards

  • Skaggs BYU Fellowship Award for Excellence in Mentoring
  • Western Crop Science Society Research Presentation Award
  • Fellow
  • ASA Cross Cultural Experience Program Scholarship Mentoring
  • Widstoe Fellowship
  • Certificate of Industry Accomplishment for role in developement of fertilizer to replace AN (explosive used in OK City Bombing)
  • Mentored Undergraduate Research Recognition (Travis Beckett)
  • Highlighted Project: 2006 SARE Program
  • Model Proposal and Final Report
  • 1st Place Graduate Student Poster Presentation (Tom Bowen)
  • Outstanding Educator (Awarded to instructor receiving highest ranking from continuing education participants)
  • J. Fielding Reed Potash and Phosphate Institute Fellowship

Memberships

  • Western Education/Extension and Research Activities - Western Regional Turfgrass Working Group (WERA-011; USDA-CSREES): ( - Present)
  • Turfgrass Producers International: ( - Present)
  • Intermountain Sports Turf Managers Association: ( - Present)
  • National Association of Landscape Professionals (NALP-formerly PLANET - Plant and Landscape Network: ( - Present)
  • Sports Turf Managers Association: ( - Present)
  • Western Education/Extension and Research Activities - Western Regional Nutrient Management Working Group (WERA-103; USDA-CSREES): ( - Present)
  • Crop Science Society of America: ( - Present)
  • American Society of Agronomy: ( - Present)
  • Soil Science Society of America: ( - Present)
  • Potato Association of America: ( - Present)

Professional Citizenship

  • Publications-outreach, Sports Turf Managers Association, 2019-11-01 - 2019-11-30 - Present
  • Officer, Soil Science Society of America--North American Proficiency Testing, 2019-09-01 - 2019-09-30 - Present
  • Committee/Council Member, Sports Turf Managers Association: BMP Task Force Committee, 2019-09-01 - 2019-09-30 - Present
  • Officer (specify in Other), Church of Jesus Christ of Latter-Day Saints, 2017-02-01 - 2017-02-28 - Present
  • Committee/Council Member, Sports Turf Manager's Association Conference Education Committee, 2013-01-01 - 2013-01-31 - Present
  • Committee/Council Member, Western Regional Turfgrass Research Working Group WERA011; USDA-CSREES), 2008-06-01 - 2008-06-30 - Present
  • Committee/Council Member, Western Education/Extension and Research Activities Committee (WERA-103; USDA-CSREES), 2000-01-01 - 2000-01-31 - Present
  • Editor, Associate Editor, Agronomy: Special Edition on Phosphorus and Micronutrient Interactions, 2020-04-01 - 2020-04-30 - 2021-01-01 - 2021-12-31
  • Reviewer, Ad Hoc Reviewer, Agriculture Journal, 2020-01-01 - 2020-12-31 - 2020-04-01 - 2020-04-30
  • Reviewer, Ad Hoc Reviewer, Plant and Soil Journal, 2020-08-01 - 2020-08-31 - 2020-08-01 - 2020-08-31
  • Reviewer, Ad Hoc Reviewer, Plant Physiology and Biochemistry, 2020-08-01 - 2020-08-31 - 2020-08-01 - 2020-08-31
  • Reviewer, Ad Hoc Reviewer, Soil Science Society of America Journal, 2020-08-01 - 2020-08-31 - 2020-08-01 - 2020-08-31
  • Reviewer, Ad Hoc Reviewer, Crop Science Journal, 2020-06-01 - 2020-06-30 - 2020-06-01 - 2020-06-30
  • Reviewer, Ad Hoc Reviewer, Plants Journal, 2020-05-01 - 2020-05-31 - 2020-05-01 - 2020-05-31
  • Reviewer, Ad Hoc Reviewer, Agriculture journal, 2020-04-01 - 2020-04-30 - 2020-04-01 - 2020-04-30
  • Reviewer, Ad Hoc Reviewer, Archives of Agronomy and Soil Science Journal, 2020-04-01 - 2020-04-30 - 2020-04-01 - 2020-04-30
  • Reviewer, Ad Hoc Reviewer, Soil Science Society of America Journal, 2020-02-01 - 2020-02-28 - 2020-03-01 - 2020-03-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2020-02-01 - 2020-02-28 - 2020-02-01 - 2020-02-28
  • Reviewer, Ad Hoc Reviewer, Book of Mormon Ecology, 2019-01-01 - 2019-12-31 - 2019-01-01 - 2019-12-31
  • Editor, Associate Editor, Journal of Environmental Quality, 2019-01-01 - 2019-01-31 - 2019-12-01 - 2019-12-31
  • Reviewer, Ad Hoc Reviewer, Soil Science Journal, 2019-01-01 - 2019-12-31 - 2019-01-01 - 2019-12-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2019-11-01 - 2019-11-30 - 2019-11-01 - 2019-11-30
  • Reviewer, Ad Hoc Reviewer, Catena Journal, 2019-11-01 - 2019-11-30 - 2019-11-01 - 2019-11-30
  • Reviewer, Ad Hoc Reviewer, Soil Research Journal, 2019-10-01 - 2019-10-31 - 2019-10-01 - 2019-10-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2019-05-01 - 2019-05-31 - 2019-06-01 - 2019-06-30
  • Reviewer, Ad Hoc Reviewer, HortScience Journal, 2019-05-01 - 2019-05-31 - 2019-06-01 - 2019-06-30
  • Reviewer, Ad Hoc Reviewer, HortScience Journal, 2019-05-01 - 2019-05-31 - 2019-05-01 - 2019-05-31
  • Reviewer, Ad Hoc Reviewer, Journal of American Society for Horticultural Science, 2019-05-01 - 2019-05-31 - 2019-05-01 - 2019-05-31
  • Guest Speaker, Brigham Young University Womens' Conference, 2019-01-01 - 2019-01-31 - 2019-05-01 - 2019-05-31
  • Reviewer, Ad Hoc Reviewer, Soil Science Society of America Journal, 2019-02-01 - 2019-02-28 - 2019-03-01 - 2019-03-31
  • Conference-Related Role, WERA-103 Western Nutrient Management Conference, 2018-01-01 - 2018-01-31 - 2019-03-01 - 2019-03-31
  • Committee/Council Member, Church of Jesus Christ of Latter-day Saints Landscape Committee, 2012-05-01 - 2012-05-31 - 2019-01-01 - 2019-01-31
  • Committee/Council Member, Church of Jesus Christ of Latter-day Saints Water Conservation Committee, 2012-05-01 - 2012-05-31 - 2019-01-01 - 2019-01-31
  • Guest Speaker, Karl G Maeser Preparatory Academy, 2018-12-01 - 2018-12-31 - 2018-12-01 - 2018-12-31
  • Reviewer, Ad Hoc Reviewer, Journal of Plant Nutrition and Soil Science, 2018-03-01 - 2018-03-31 - 2018-03-01 - 2018-03-31
  • Reviewer, Ad Hoc Reviewer, Communications in Soil Science and Plant Analysis, 2017-01-01 - 2017-12-31 - 2017-01-01 - 2017-12-31
  • Reviewer, Ad Hoc Reviewer, Journal of Animal and Plant Sciences, 2017-01-01 - 2017-12-31 - 2017-01-01 - 2017-12-31
  • Committee/Council Member, Provo City Agricultural Commission, 2016-01-01 - 2016-12-31 - 2017-01-01 - 2017-12-31
  • Reviewer, Ad Hoc Reviewer, Pearson Publishing, 2017-10-01 - 2017-10-31 - 2017-11-01 - 2017-11-30
  • Reviewer, Ad Hoc Reviewer, Michigan State University , 2017-10-01 - 2017-10-31 - 2017-10-01 - 2017-10-31
  • Reviewer, Ad Hoc Reviewer, Journal of Animal and Plant Science, 2017-07-01 - 2017-07-31 - 2017-07-01 - 2017-07-31
  • Conference-Related Role, Western Nutrient Management Conference, 2017-03-01 - 2017-03-31 - 2017-03-01 - 2017-03-31
  • Committee/Council Member, North American Proficiency Testing Program: SSSA, 2002-01-01 - 2002-12-31 - 2016-01-01 - 2016-12-31
  • Committee/Council Member, North American Proficiency Testing Program (NAPT), 2011-01-01 - 2011-01-31 - 2013-12-01 - 2013-12-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2013-06-01 - 2013-06-30 - 2013-07-01 - 2013-07-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2013-06-01 - 2013-06-30 - 2013-07-01 - 2013-07-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2013-06-01 - 2013-06-30 - 2013-07-01 - 2013-07-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2013-06-01 - 2013-06-30 - 2013-07-01 - 2013-07-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2013-06-01 - 2013-06-30 - 2013-07-01 - 2013-07-31
  • Reviewer, Ad Hoc Reviewer, Journal of the Science of Food and Agriculture, 2010-12-01 - 2010-12-31 - 2012-12-01 - 2012-12-31
  • Reviewer, Ad Hoc Reviewer, Plant and Soil Journal, 2010-12-01 - 2010-12-31 - 2012-12-01 - 2012-12-31
  • Reviewer, Ad Hoc Reviewer, Plant Biology, 2010-10-01 - 2010-10-31 - 2012-12-01 - 2012-12-31
  • Reviewer, Ad Hoc Reviewer, Journal of Plant Nutrition and Soil Science, 2010-08-01 - 2010-08-31 - 2012-12-01 - 2012-12-31
  • Reviewer, Ad Hoc Reviewer, Journal of Soil and Water Conservation, 2010-03-01 - 2010-03-31 - 2012-12-01 - 2012-12-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2010-01-01 - 2010-01-31 - 2012-12-01 - 2012-12-31
  • Reviewer, Ad Hoc Reviewer, Journal of Environmental Quality, 2010-01-01 - 2010-01-31 - 2012-12-01 - 2012-12-31
  • Committee/Council Chair, Official Methods of Analysis S-889: Soil Science Society of America, 2002-11-01 - 2002-11-30 - 2012-11-01 - 2012-11-30
  • Conference-Related Role, Environmental Science Division of ASA, 2010-11-01 - 2010-11-30 - 2011-11-01 - 2011-11-30
  • Officer, Production Section/Potato Association of America, 2008-01-01 - 2008-12-31 - 2010-01-01 - 2010-12-31
  • Other, ASA - A5, 2009-01-01 - 2009-12-31 - 2009-01-01 - 2009-12-31
  • Reviewer, Ad Hoc Reviewer, J. Soil & Water Cons., 2009-01-01 - 2009-12-31 - 2009-01-01 - 2009-12-31
  • Reviewer, Ad Hoc Reviewer, Manuscript Review - AJPR, 2009-01-01 - 2009-12-31 - 2009-01-01 - 2009-12-31
  • Committee/Council Chair, Official Methods of Soil Analysis S889/Soil Science Society of America, 2009-01-01 - 2009-12-31 - 2009-01-01 - 2009-12-31
  • Reviewer, Ad Hoc Reviewer, Reviewer, 2009-01-01 - 2009-12-31 - 2009-01-01 - 2009-12-31
  • Other, Soil Science Society of America Board, 2009-01-01 - 2009-12-31 - 2009-01-01 - 2009-12-31
  • Reviewer, Ad Hoc Reviewer, Manuscript Review - Agron J, 2008-01-01 - 2008-12-31 - 2008-01-01 - 2008-12-31
  • Reviewer, Ad Hoc Reviewer, Manuscript Review - AJPR, 2008-01-01 - 2008-12-31 - 2008-01-01 - 2008-12-31
  • Officer, North American Proficiency Testing program / Soil Science Society of America, 2008-01-01 - 2008-12-31 - 2008-01-01 - 2008-12-31
  • Committee/Council Chair, Official Methods of Soil Analysis S889/Soil Science Society of America, 2008-01-01 - 2008-12-31 - 2008-01-01 - 2008-12-31
  • Officer, Production Section/Potato Association of America, 2008-01-01 - 2008-12-31 - 2008-01-01 - 2008-12-31
  • Other, SSSA S8, 2008-01-01 - 2008-12-31 - 2008-01-01 - 2008-12-31
  • Reviewer, Ad Hoc Reviewer, American Journal of Potato Research, 2007-01-01 - 2007-12-31 - 2007-01-01 - 2007-12-31
  • Committee/Council Chair, Idaho Potato Conference, 2007-01-01 - 2007-12-31 - 2007-01-01 - 2007-12-31
  • Officer, North American Proficiency Testing program / Soil Science Society of America, 2007-01-01 - 2007-12-31 - 2007-01-01 - 2007-12-31
  • Committee/Council Chair, Official Methods of Soil Analysis S889/Soil Science Society of America, 2007-01-01 - 2007-12-31 - 2007-01-01 - 2007-12-31
  • Officer, Production Section/Potato Association of America, 2007-01-01 - 2007-12-31 - 2007-01-01 - 2007-12-31
  • Reviewer, Ad Hoc Reviewer, Soil Science Society of America Journal, 2007-01-01 - 2007-12-31 - 2007-01-01 - 2007-12-31

Courses Taught

2020

  • PWS 799R: Section 010
  • PWS 319 : Section 001
  • PWS 699R: Section 011
  • PWS 494R: Section 011
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 699R: Section 011
  • PWS 699R: Section 011
  • PWS 405 : Section 003
  • PWS 699R: Section 008
  • PWS 494R: Section 027
  • PWS 494R: Section 033
  • PWS 560 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 402 : Section 001
  • PWS 402 : Section 002

2019

  • PWS 494R: Section 005
  • PWS 494R: Section 024
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 319 : Section 001
  • PWS 494R: Section 015
  • PWS 405 : Section 001
  • PWS 699R: Section 008
  • PWS 494R: Section 006
  • PWS 494R: Section 027
  • PWS 494R: Section 033
  • PWS 697R: Section 019
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 402 : Section 001
  • PWS 402 : Section 002
  • PWS 390R: Section 002

2018

  • PWS 699R: Section 005
  • PWS 494R: Section 024
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 390R: Section 002
  • PWS 319 : Section 001
  • PWS 699R: Section 008
  • PWS 494R: Section 015
  • PWS 598R: Section 005
  • PWS 494R: Section 007
  • PWS 560 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 402 : Section 001
  • PWS 402 : Section 002
  • PWS 390R: Section 002

2017

  • PWS 699R: Section 5
  • PWS 494R: Section 025
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 390R: Section 002
  • REL A 121 : Section 030
  • PWS 319 : Section 001
  • PWS 494R: Section 13
  • PWS 390R: Section 002
  • PWS 390R: Section 003
  • PWS 598R: Section 005
  • PWS 598R: Section 1
  • PWS 406 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 699R: Section 8
  • PWS 494R: Section 008
  • PWS 494R: Section 027
  • PWS 402 : Section 001
  • PWS 402 : Section 002

2016

  • PWS 598R: Section 002
  • PWS 282 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 494R: Section 005
  • REL A 121 : Section 001
  • PWS 319 : Section 001
  • PWS 494R: Section 016
  • PWS 598R: Section 005
  • PWS 598R: Section 1
  • PWS 406 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 494R: Section 008
  • PWS 402 : Section 001

2015

  • PWS 598R: Section 6
  • PWS 405 : Section 001
  • PWS 282 : Section 001
  • PWS 283 : Section 001
  • PWS 699R: Section 5
  • PWS 494R: Section 005
  • PWS 494R: Section 26
  • PWS 560 : Section 001
  • PWS 319 : Section 001
  • PWS 699R: Section 036
  • PWS 494R: Section 017
  • PWS 660 : Section 001
  • PWS 406 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 699R: Section 008
  • PWS 494R: Section 008
  • PWS 402 : Section 001

2014

  • PWS 598R: Section 007
  • PWS 405 : Section 001
  • PWS 283 : Section 001
  • PWS 494R: Section 006
  • PWS 560 : Section 001
  • PWS 319 : Section 001
  • PWS 598R: Section 002
  • PWS 406 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 699R: Section 009
  • PWS 402 : Section 001

2013

  • PWS 405 : Section 001
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 699R: Section 006
  • PWS 494R: Section 006
  • PWS 494R: Section 026
  • PWS 560 : Section 001
  • PWS 319 : Section 001
  • PWS 699R: Section 012
  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 283 : Section 003
  • PWS 699R: Section 010
  • PWS 494R: Section 011
  • PWS 494R: Section 004
  • PWS 390R: Section 003
  • PWS 402 : Section 001

2012

  • PWS 283 : Section 001
  • PWS 283 : Section 002
  • PWS 283 : Section 003
  • PWS 699R: Section 006
  • PWS 494R: Section 006
  • PWS 390R: Section 003
  • PWS 318 : Section 001
  • PWS 319 : Section 001
  • PWS 699R: Section 014
  • PWS 494R: Section 018
  • PWS 150 : Section 001
  • PWS 150 : Section 002
  • PWS 699R: Section 010
  • PWS 494R: Section 011
  • PWS 402 : Section 001

2011

  • PWS 511 : Section 001
  • PWS 699R: Section 007
  • PWS 494R: Section 007
  • PWS 494R: Section 029
  • PWS 318 : Section 001
  • PWS 319 : Section 001
  • PWS 494R: Section 016
  • PWS 699R: Section 012
  • PWS 598R: Section 011
  • PWS 150 : Section 001
  • PWS 494R: Section 011
  • PWS 697R: Section 007
  • PWS 390R: Section 002
  • PWS 402 : Section 001

2010

  • PWS 699R: Section 007
  • PWS 494R: Section 007
  • PWS 390R: Section 001
  • PWS 318 : Section 001
  • PWS 319 : Section 001
  • PWS 150 : Section 001
  • PWS 150 : Section 002
  • PWS 699R: Section 014
  • PWS 699R: Section 012
  • PWS 150 : Section 001
  • PWS 150 : Section 002
  • PWS 699R: Section 010
  • PWS 494R: Section 011
  • PWS 402 : Section 001

2009

  • PWS 198R: Section 002
  • PWS 699R: Section 007
  • PWS 494R: Section 007
  • PWS 511 : Section 001
  • PWS 390R: Section 001
  • PWS 319 : Section 001
  • PWS 598R: Section 003
  • PWS 494R: Section 016
  • PWS 494R: Section 018
  • PWS 150 : Section 001
  • PWS 494R: Section 014
  • LFSCI 494R: Section 035
  • PWS 402 : Section 001

2008

  • PWS 198R: Section 002
  • PWS 494R: Section 008
  • PWS 494R: Section 026
  • PWS 390R: Section 002
  • PWS 319 : Section 001
  • PAS 699R: Section 020
  • PAS 699R: Section 018
  • PAS 100 : Section 001
  • PAS 699R: Section 012
  • PAS 494R: Section 018
  • BIOL 494R: Section 042

2007

  • BIOL 494R: Section 16
  • PAS 494R: Section 9
  • PAS 699R: Section 9
  • PAS 319 : Section 001
  • PAS 402 : Section 001

Publications

  • Campbell A, Thompson C, Chen M, Campbell CS, Hopkins BG, Hansen NC. November 5, 2020. A better look at real-time soil conditions under turf: Paired root-zone water content and potential sensors. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • HRB, Wear GA, Hansen NC, Geary BD, Hopkins BG. November 5, 2020. Bermudagrass vs Kentucky bluegrass under varying irrigation rates. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Kobza SJ, Hopkins BG. November 5, 2020. Enhanced Efficiency Phosphorus Fertilizers. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Bonsrah DK, Woolley EA, Kobza SJ, Searle TG, Williams JD, Hopkins BG. November 5, 2020. Homogeneous Boron-Potassium Fertilizer Granules: Potato and Alfalfa. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Cole DL, Heidenreich DT, Stapley SH, Lambert AM, Buck RL, Hopkins BG. November 5, 2020. New Hydroponic System for Testing Mineral Nutrient Deficiencies: Quinoa. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Fahning SR, Hopkins BG. November 5, 2020. Overview of Enhanced Efficiency Nitrogen Fertilizers: Coated Urea. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Hopkins BG, Cardon GE, Lawley JR. November 5, 2020. Plant Tissue Methods Accuracy and Precision Comparison: Historical North American Proficiency Testing (NAPT) Program Results. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Stapley SH, Hansen NC, Yost MA, Hopkins BG. November 5, 2020. Stacking and Intersecting Nutrient 4R’s and Using in-Season Canopy Health and Petiole Nitrate Analysis on Russet Burbank Potatoes. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Yost MA, Hansen NC, Hopkins BG, Williams JD, Walsh OS, Cardon GE, Creech E, Black B. November 5, 2020. Trends and Opportunities in 4R Nitrogen Management of Field and Fruit Crops in the Intermountain West. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Hopkins BG. October (4th Quarter/Autumn) 21, 2020. A Murder of Crows. Jennifer Partridge, editor. Provo, UT: City of Provo Utah.
  • Evans SR, Kopp K, Johnson PG, Hansen NC, Hopkins BG. July (3rd Quarter/Summer) 13, 2020. More “pop” per drop: Smart irrigation. 4th ed. John Kmitta, editor. Port Jervis, NY: EPG Media & Specialty Information.
  • Evans SR, Kopp K, Johnson PG, Hansen NC, Hopkins BG. June 6, 2020. More “pop” per drop: Smart irrigation. 6th ed. John Kmitta, editor. Lawrence, KS: Sports Turf Managers Association.
  • Ransom CJ, Jolley VD, Blair TA, Sutton LE, Hopkins BG. June 17, 2020. Nitrogen release rates from slow- and controlled-release fertilizers influenced by placement and temperature. San Francisco, CA: PLOS ONE.
  • Hopkins BG, Stark JC, Kelling KA. April (2nd Quarter/Spring) 28, 2020. Nutrient Management. 2ndth ed. Stark J., Thornton M., Nolte P., editors. New York, New York: Springer Cham.
  • Svedin JD, Kerry R, Hansen NC, Hopkins BG. January (1st Quarter/Winter) 1, 2020. Modeling spatio-temporal variations in crop water stress for variable-rate irrigation. John V. Stafford, editor. Wageningen: Wageningen Academic Publishers.
  • Cole DL, Woolley RK, Buck RL, Tyler A, Hopkins BG. March 20, 2020. Mineral Nutrient Deficiencies in Quinoa Grown in Hydroponics with Single Nutrient Salt/Acid/Chelate Sources. 11th ed. London: Taylor & Francis.
  • Fahning SR, Hopkins BG. March 5, 2020. Enhanced efficiency nitrogen fertilizer: Coated urea. Alan Schlegel, editor. Manhattan, KS: Great Plains Soil Fertility Conference.
  • Kobza SJ, Hopkins BG. March 5, 2020. Enhanced efficiency phosphorus fertilizers. Alan Schlegel, editor. Manhattan, KS: Great Plains Soil Fertility Conference.
  • Hopkins BG. February 29, 2020. Developments in the Use of Fertilizers. Z. Rengel, editor. Cambridge: Burleigh Dodds Science Publishing.
  • Hopkins BG. January (1st Quarter/Winter) 28, 2020. Nitrogen fertilizer: Choose wisely. Lawrence, KS: Sports Turf Managers Association.
  • Hopkins BG, Miller JS, Nielson E, Geary BD. October (4th Quarter/Autumn) 1, 2019. Chemicals, Courts and Cancer: The Glyphosate Conundrum. 10th ed. Eric Schroder, editor.
  • Hopkins BG, Hansen NC, Sundberg M. September 12, 2019. Phosphorus Management in High-Yield Systems. 5th ed. Jim Ippolito (Assoc. Ed.) and Andrew Sharpley (Ed.), editors. Madison, WI: American Society of Agronomy * Crop Science Society of America * Soil Science Society of America.
  • Hopkins BG, Woolley EA. June 1, 2019. Biostimulants - Boom or bull?. 6th ed. Eric Schroder, editor. Plymouth, MN: Sports Turf Managers Association via Green Media On-line.
  • Nelson SV, Madsen MD, Hansen NC, Anderson VJ, Hopkins BG. March 17, 2019. Hydrogel banding to improve seedling establishment in rangeland restoration.
  • Woolley EA, Searle TG, Hopkins TJ, Williams JD, Hopkins BG. March 9, 2019. Boron fertilization with Aspire® in alfalfa and potato. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Cole DL, Woolley RK, Buck RL, Hopkins BG. March 9, 2019. New hydroponic system for testing mineral nutrient deficiencies and its application to quinoa. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Valencia MC, Nelson SV, Hopkins BG. March 9, 2019. Phosphorus fertilizer and hydrogel for rangeland seeding. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Carlock ET, Weigel AM, Searle TG, Hopkins TJ, Williams JD, Hopkins BG. March 9, 2019. Polymer coated urea and urea blends on potato. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Fahning SR, Searle TG, Weigel AM, Buck RL, Hopkins TJ, Hopkins BG. March 9, 2019. Polymer coated urea impact on barley yield and protein. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Stapley SH, Buss JC, Hopkins BG. March 9, 2019. Polymer coated urea in Kentucky bluegrass. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Norris AJ, Hopkins BG. March 9, 2019. Source and rate interactions for enhanced efficiency phosphorus fertilizers. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Fisher J, Woolley EA, Svedin JD, Hopkins BG. March 9, 2019. Struvite phosphorous fertilizer on sugar beet. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Woolley RK, Svedin JD, Woolley EA, Hopkins BG. March 9, 2019. Struvite phosphorus fertilizer on potato. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Hopkins AP, Campbell CS, Hopkins BG, Hansen NC. March 9, 2019. Water and nitrogen interactions in Kentucky bluegrass. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Hopkins BG. January (1st Quarter/Winter), 2019. Phosphorus Use in High Yield Cropping Systems. 1st ed. Peachtree Corners, GA: International Plant Nutrition Institute.
  • Morris AM, Maughan PJ, Hopkins BG, Hansen NC. December, 2018. The effect of Chenopodium quinoa on salinization levels in soil. Provo, UT: Brigham Young University .
  • Smith TS, Gookin J, Hopkins BG, Thompson SH. December 17, 2018. Portable electric fencing for bear deterrence and conservation. 3rd ed. Logan, UT: Utah State University.
  • LeMonte JJ, Jolley VD, Story TM, Hopkins BG. September 18, 2018. Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea. 9th ed. Du Changwen, editor. San Francisco, CA: PLOS.
  • Hopkins BG, Fernelius KJ, Hansen NC, Eggett DL. July (3rd Quarter/Summer), 2018. A response to the letter to the editor from Chien et al (Comments on “AVAIL phosphorus fertilizer enhancer: Meta-analysis of 503 field evaluations” by BG Hopkins et al) . 4th ed. Madison, WI: American Society of Agronomy.
  • Jones CD, Stetler JM, Jolley VD, Hopkins BG, Jensen SL, Turner D, Stevens MR. July (3rd Quarter/Summer), 2018. Comparisons of mulching cultivation methods for Lupinus sericeus, L argenteus, L prunophilus and L arbustus. 2nd ed. Madison, WI: University of Wisconsin Press.
  • Hopkins BG, Hansen NC. June, 2018. University Turf Researchers Are Working For You: Brigham Young University Research Update. 6th ed. Eric Schroder, editor. Lawrence, Kansas: Sports Turf Managers Association.
  • Hopkins BG, Hopkins TJ. April (2nd Quarter/Spring), 2018. Carbon: The Next Frontier in Fertilization?. 3rd ed. Matt Nilsson, editor. Madison, WI: Agronomy Society of America.
  • Hopkins BG, Fernelious KJ, Hansen NC, Eggett DL. January (1st Quarter/Winter) 1, 2018. AVAIL phosphorus fertilizer enhancer: Meta-analysis of 503 field evaluations. 1st ed. Madison, WI: Agronomy Society of America.
  • Katseanas CK, Chappell MA, Hopkins BG, Durham BD, Price CL, Porter BE, Miller LF. December 1, 2017. Multivariate soil fertility relationships for predicting the environmental persistence of 2,4,6-trinitrotoluene (TNT) and 1,3,5-trinitro-1,3,5-tricyclohexane (RDX) among taxonomically distinct soils. Atlanta, GA: Elsevier.
  • Summerhays JS, Jolley VD, Hill MW, Hopkins BG. October (4th Quarter/Autumn), 2017. Enhanced phosphorus fertilizers (Carbond® P and AVAIL®) supplied to maize in hydroponics. Philadelphia, PA: Journal of Plant Nutrition.
  • Svedin JD, Kerry R, Hansen NC, Hopkins BG. October (4th Quarter/Autumn) 25, 2017. Developing Irrigation Zones from a Field Scale Crop Water Productivity Map. Madison, WI: American Society of Agronomy.
  • Hopkins AP, Hansen NC, Hopkins BG, Russell K. October (4th Quarter/Autumn) 25, 2017. Nitrogen and Irrigation Interactions in Water-Stressed Turfgrass Species. Madison, WI: American Society of Agronomy.
  • Nelson S, Petersen W, Svedin JD, Hansen NC, Madsen MD, Anderson VJ, Hopkins BG. October (4th Quarter/Autumn) 25, 2017. Polyacrylamide for Increasing Soil Moisture and Seeding Success Poster Number. Madison, WI: American Society of Agronomy.
  • Porter WH, Svedin JD, Hopkins TJ, Hopkins BG. October (4th Quarter/Autumn) 25, 2017. Polymer Coated Urea Research Summary: Meeting Plant Requirements While Mitigating Environmental Impacts. Madison, WI: American Society of Agronomy.
  • Thurgood GW, Hopkins BG. October (4th Quarter/Autumn) 25, 2017. Potato Yield Response to Select Phosphorus and Potassium Sources Poster Number. Madison, WI: American Society of Agronomy.
  • Valencia MC, Svedin JD, Hopkins TJ, Hopkins BG. October (4th Quarter/Autumn) 25, 2017. Rate, Timing, Placement and Enhanced Fertilizer Sources for Improving Phosphorus Use Efficiency. Madison, WI: American Society of Agronomy.
  • Campbell CS, Hopkins BG, Hansen NC. October (4th Quarter/Autumn) 25, 2017. Soil Water and Plant Canopy Sensor Technologies to Optimize Water and Nutrient Use. Madison, WI: American Society of Agronomy.
  • Hopkins AP, Hopkins BG, Hansen NC, Hopkins TJ. September 1, 2017. Interacting Water & Nitrogen. 3rd ed. Allen Thayer, editor. Cleveland, OH: North Coast Media.
  • Crossingham R, Hopkins BG. August 4, 2017. ESN smart nitrogen helps farmers minimize N loss in potatoes. 7th ed. Bismark, ND: Farm & Ranch Guide.
  • Hopkins BG, Hopkins AP, Hansen NC. April (2nd Quarter/Spring), 2017. Water-Wise Turf Good Even When Without Drought. Plymouth, MN: Sports Turf Managers Association via greenmediaonline.
  • Fernelius KJ, Madsen MD, Hopkins BG, Bansal S, Anderson VJ, Eggett DL, Roundy BA. April (2nd Quarter/Spring), 2017. Post-fire interactions between soil water repellency, soil fertility and plant growth in soil collected from a burned Piñon-Juniper woodland. Amsterdam: Elsevier.
  • Svedin JD, Hansen NC, Kerry R, Christensen RC, Hopkins BG. March 2, 2017. Creating prescription variable rate irrigation and fertilization zones: Water and nutrient management interactions. Brookings, SD: International Plant Nutrition Institute, WERA-103 USDA-NIFA.
  • Shipp E, Hopkins TJ, Hopkins BG. March 2, 2017. Improving phosphorus use efficiency: Right rate, timing, and placement and enhanced efficiency fertilizer sources: Research summary. Brookings, SD: International Plant Nutrition Institute, WERA-103 USDA-NIFA.
  • Russell KA, Hopkins AP, Hansen NC, Hopkins BG. March 2, 2017. Nitrogen and irrigation water interactions in drought stressed Kentucky bluegrass. Brookings, SD: International Plant Nutrition Institute, WERA-103 USDA-NIFA.
  • Hopkins BG, Hansen NC. March 2, 2017. Nitrogen and water interactions: Crop production systems case studies. Brookings, SD: International Plant Nutrition Institute, WERA-103 USDA-NIFA.
  • Bartholomew S, Hopkins TJ, Hopkins BG. March 2, 2017. Polymer coated urea: Meeting plant needs while mitigating environmental impacts – research summary. Brookings, SD: International Plant Nutrition Institute, WERA-103 USDA-NIFA.
  • Hopkins BG. December 4, 2016. Polymer Coated Urea: Mitigating Nitrogen Loss to the Environment.
  • Hopkins AP, Fernelious KG, Hopkins BG. November, 2016. AVAIL Phosphorus fertilizer enhancer: analysis of 503 field evaluations. Madison, WI: ASA-CSA-SSSA.
  • Nielsen N, Williams JD, Hopkins BG. November, 2016. Boron and manganese fertilization on Russet Burbank potato. Madison, WI: ASA-CSA-SSSA.
  • Ruth M, Hopkins BG. November, 2016. Combating anemia and other iron related deficiencies through iron-efficiency in soybeans. Madison, WI: ASA-CSA-SSSA.
  • Thurgood C, Williams JD, Hopkins BG. November, 2016. Comparison of Agrium ESN and urea fertilizers on barley in southeast Idaho. Madison, WI: ASA•CSSA•SSSA.
  • Harding C, Williams JD, Hopkins BG. November, 2016. Comparison of ESN and urea on potato petiole nitrate and yield in southeast Idaho. Madison, WI: ASA-CSA-SSSA.
  • Thurgood GW, Williams JD, Hopkins BG. November, 2016. Comparison of FUSN and urea fertilizers on potato yield and tuber quality in SE Idaho. Madison, WI: ASA•CSSA•SSSA.
  • Cooper RL, Williams JD, Hopkins BG. November, 2016. Effects of Mosaic Aspire compared with MOP and boron blended fertilizer on alfalfa yield and quality. Madison, WI: ASA•CSSA•SSSA.
  • Hopkins BG, Hansen NC. November, 2016. Nutrient and water management tools in a water-short world. Madison, WI: ASA•CSSA•SSSA.
  • Petersen W, Svedin J, Hopkins BG. November, 2016. Polyacrylamide use in reestablishing arid rangeland species. Madison, WI: ASA•CSSA•SSSA.
  • Tyler A, Buss J, Gish JH, Svedin J, Hopkins BG. November, 2016. Polymer coated urea in Kentucky bluegrass: optimal timing and rate of application. Madison, WI: ASA-CSA-SSSA.
  • Searle TG, Williams JD, Hopkins BG. November, 2016. Polymer Coated Urea Management. Madison, WI: ASA•CSSA•SSSA.
  • Evans SR, Campbell CS, Hopkins BG, Hansen NC. November, 2016. The effects of water use in turfgrass using sensor-driven decisions. Madison, WI: ASA•CSSA•SSSA.
  • Svedin J, Hansen NC, Kerry R, Hopkins BG. November, 2016. Variable rate irrigation and water use efficiency. Madison, WI: ASA•CSSA•SSSA.
  • Campbell CS, Hansen NC, Hopkins BG, Evans SR, Rivera LD, Cobos DR, Campbell GS. November, 2016. In situ moisture release curves to determine soil water characteristics. Madison, WI: ASA•CSSA•SSSA.
  • Bartholomew S, Russell K, Hansen NC, Hopkins BG. November, 2016. Syringing Kentucky bluegrass: frequency impacts canopy temperature and growth. Madison, WI: ASA-CSA-SSSA.
  • Katseanas CK, Chappell MA, Hopkins BG, Durham BD, Price CL, Porter BE, Miller LF. November 1, 2016. Multivariate functions for predicting the sorption of 2,4,6-trinitrotoluene (TNT) and 1,3,5-trinitro-1,3,5-tricyclohexane (RDX) among taxonomically distinct soils. Atlanta, GA: Elsevier.
  • Hopkins BG. August 8, 2016. Aerial Assessment Strategies: Potato/Grain NUE. Moscow, ID: University of Idaho.
  • Hopkins TJ, Carroll DA, Hopkins BG, Hansen NC. August 8, 2016. Drought and Nitrogen Effects on Maize Canopy Temperature and Stress Indices. Moscow, ID: University of Idaho.
  • Svedin JD, Ransom CJ, Hopkins BG. August 8, 2016. Evaluation of Nitrogen gas loss from polymer coated and polymer sulfur coated urea. Moscow, ID: University of Idaho.
  • Russell KA, Hansen NC, Hopkins BG. August 8, 2016. Nitrogen and Irrigation Water Interactions in Drought-Stressed Kentucky Bluegrass. Moscow, ID: University of Idaho.
  • Bartholomew S, Buss J, Hansen NC, Hopkins BG. August 8, 2016. Polymer Coated Urea in Kentucky Bluegrass. Moscow, ID: University of Idaho.
  • Hopkins AP, Ransom CJ, Peterson W, Buss J, Hopkins BG. August 8, 2016. Polymer Coated Urea Release Rates Under Varying Conditions. Moscow, ID: University of Idaho.
  • Buck RL, Hopkins BG, Webb BL, Jolley VD. May 1, 2016. Depth of ion exchange resin capsule placement impacts on estimation of nitrogen, phosphorus, and sulfur bioavailability in semi-arid, low fertility soils. 5th ed. Alphen aan den Rijn: Wolters Kluwer.
  • Jones CD, Stevens MR, Jolley VD, Hopkins BG, Jensen SL, Turner D, Stettler JM. May 01, 2016. Evaluation of thermal, chemical, and mechanical seed scarification methods for four Great Basin Lupine species. 1st ed. Stephen Love, editor. Madison, WI: University of Wisconsin Press Journals Division.
  • Buck RL, Webb BL, Jolley VD, Roundy BA, Hopkins BG, Geary B. January (1st Quarter/Winter), 2016. Comparing traditional soil extraction with ion exchange resin capsules for determining sulfur bioavailability in semiarid, low-fertility soils. 1st ed. Daniel Gimenez, editor. Philadelphia, PA: Wolters Kluwer.
  • LeMonte JJ, Jolley VD, Summerhays JS, Terry RE, Hopkins BG, Geary BD. January (1st Quarter/Winter) 14, 2016. Polymer Coated Urea in Turfgrass Maintains Vigor and Mitigates Nitrogen's Environmental Impacts. 1st ed.
  • Buss J, Hopkins BG, Gish JH. 2015. Optimizing Polymer Coated Urea Applications for Kentucky Bluegrass. Madison, WI: Soil Science Society of America.
  • Johnson N, Williams JD, Hopkins BG, Cooper RL. November, 2015. Comparison of Asn-26 and Urea Fertilizers in Potato Production in Southeast Idaho. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Carroll DA, Hopkins BG, Hansen NC. November, 2015. Drought and nitrogen stress effects on maize canopy temperature. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Hopkins BG. November, 2015. Field Evaluation of "Enhanced" Phosphorus Fertilizers. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Cardon GE, Hopkins BG, Lawley JR, Provin TL. November, 2015. Historical Data Structure and Laboratory Performance in the North American Proficiency Testing (NAPT) Program. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Hansen NC, Hopkins BG, Altenhofen J. November, 2015. Interaction of Irrigation, Nitrogen Management, and Crop Genetics on Water Productivity of Maize and Kentucky Bluegrass. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Russell K, Hopkins BG, Hansen NC. November, 2015. Nitrogen and irrigation water interactions in drought-stressed Kentucky bluegrass. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Svedin J, Hopkins BG, Ransom C. November, 2015. Nitrogen Gas Loss from Polymer Coated and Polymer Sulfur Coated Urea. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Molina M, Hopkins BG, Williams JD. November, 2015. Polymer Coated Urea Impact on Petiole Nitrate-N Concentrations. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Scadden IP, Williams JD, Hopkins BG. November, 2015. Response of Russet Burbank Potatoes to Manganese Fertilizer on Silt-Loam, Calcareous Soils. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Bartholomew S, Russell K, Hansen NC, Hopkins BG. November, 2015. Syringing Kentucky bluegrass: frequency impacts canopy temperature and growth. Madison, WI: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Miller J, Hopkins BG, Geary BD. November 1, 2015. "It's significant to me": The purpose of using statistics in agriculture. St. Paul, MN: American Phytopathological Society, American Society of Agronomy, Crop Science Society of America.
  • Summerhays JS, Hopkins BG, Jolley VD, Hill MW, Ransom CJ, Brown TR. October (4th Quarter/Autumn), 2015. Enhanced phosphorus fertilizer (Carbond® P) supplied to maize in moderate and high organic matter soils. Philadelphia, PA: Journal of Plant Nutrition.
  • Hill MW, Hopkins BG, Jolley VD. July (3rd Quarter/Summer), 2015. Maize in-season growth response to organic acid-bonded phosphorus fertilizer (Carbond P®) . Philadelphia, PA: Journal of Plant Nutrition.
  • Fernelious KJ, Madsen MD, Russell KA, Roundy BA, Hopkins BG. June, 2015. Effects of post-fire soil hydrophobicity on inorganic soil nitrogen and sulfur cycling . Brookings, SD: International Plant Nutrient Institute.
  • Svedin JD, Ransom CJ, Buss JC, Blair TA, Hopkins BG. June, 2015. Evaluation of Nitrogen Gas Loss from Polymer Coated and Polymer Sulfur Coated Urea . Brookings, SD: International Plant Nutrient Institute.
  • Buss JC, Gish JH, Hopkins BG. June, 2015. Minimizing Nitrogen Inputs While Optimizing Verdure and Growth of Kentucky Bluegrass with Polymer Coated Urea. Brookings, SD: International Plant Nutrient Institute.
  • Hopkins BG, Stark JC. June, 2015. Nitrogen Cycling and Fertilization in Legume Inclusive Cropping Systems . Brookings, SD: International Plant Nutrient Institute.
  • Black B, Neville B, Ewell C, Geary BD, Hopkins BG. June, 2015. Nitrogen nutrition impact on incidence of Rhizoctonia infection of Agrostis stolonifera. Brookings, SD: International Plant Nutrient Institute.
  • Fernelious KJ, Pryor MME, Hopkins BG. June, 2015. Summarization of 471 Field Comparisons of AVAIL®. Brookings, SD: International Plant Nutrient Institute.
  • Madsen MD, Zvirzdin DL, Petersen SL, Hopkins BG, Roundy BA. May, 2015. Anchor chaining’s influence on soil hydrology and seeding success in burned pinon-juniper woodlands. 3rd ed.
  • Hopkins BG. May 14, 2015. Phosphorus in Plant Nutrition. 2ndth ed. Allen V. Barker and David J. Pillbeam, editors. Boca Raton, FL: CRC Press, Taylor & Francis Group.
  • Hopkins BG, Carroll DA. 2014. Using Agricutural Byproducts in the Effort to Restore Haiti's Forests.
  • Black B, Hopkins BG, Geary BD. November, 2014. Creeping Bentgrass Nitrogen and Brown Patch Interactions. Madison, WI: ASA, CSSSA, and SSSA.
  • Stark JC, Hopkins BG. November, 2014. Fall and spring phosphorus fertilization of potato using a dicarboxylic acid polymer (AVAIL®).
  • Svedin J, Ransom C, Hopkins BG. November 4, 2014. Evaluation of Nitrogen Gas Loss from Polymer Coated and Polymer Sulfur Coated Urea.
  • Carroll DA, Hansen NC, Hopkins BG, Terry RE. November 4, 2014. Nitrogen Management and Water Productivity of Limited Irrigation Corn.
  • Blair T, Hopkins BG. November 4, 2014. Phosphorus and Organic Acid Bonding Enhances Uptake Efficiency in Crop Plants.
  • Buss J, Ransom C, Sutton L, Hopkins BG. November 3, 2014. Reducing Mowing and Fertilizing with Polymer Coated Urea in Kentucky Bluegrass.
  • Hopkins BG, Horneck DA, MacGuidwin AE. February 1, 2014. Improving Phosphorus Use Efficiency through Potato Rhizosphere Modification and Extension. 2nd ed.
  • Madsen MD, Coronel EG, Hopkins BG. September 20, 2013. Soil surfactant products for improving hydrologic function in post-fire water-repellent soil. 5th ed.
  • Jones MP, Webb BL, Jolley VD, Vickery MD, Buck RL, Hopkins BG. June 6, 2013. Evaluating nutrient availability in semi-arid soils with resin capsules and conventional soil tests II Field studies. 11th ed. Philadelphia, PA: Communications in Soil Science and Plant Analysis.
  • Hopkins BG. May 2, 2013. Russet Burbank potato phosphorus fertilization with dicarboxylic acid copolymer additive (AVAIL®). 8th ed.
  • Jones MP, Webb BL, Jolley VD, Hopkins BG, Cook DA. February 22, 2013. Evaluating nutrient availability in semi-arid soils with resin capsules and conventional soil tests I Native plant bioavailability under glasshouse conditions. 5th ed. Philadelphia, PA: Communications in Soil Science and Plant Analysis.
  • Madsen MD, Petersen SL, Fernelius KJ, Roundy BA, Taylor AG, Hopkins BG. September, 2012. Influence of soil water repellency on seedling emergence and plant survival in a burned semi-arid woodland.
  • Hopkins BG. April (2nd Quarter/Spring), 2012. 11 steps to proper soil management: A fundamental soil test interpretation guide.
  • Christensen RC, Hopkins BG, Jolley VD, Olson KM, Haskell CM, Chariton N, Webb BL. April (2nd Quarter/Spring), 2012. Elemental sulfur impregnated with iron as a fertilizer source for Kentucky bluegrass. Philadelphia, PA: Journal of Plant Nutrition.
  • Madsen MD, Petersen SL, Roundy BA, Taylor AG, Hopkins BG. March, 2012. Comparison of post-fire soil water repellency amelioration strategies on bluebunch wheatgrass and cheatgrass survival. 2nd ed. Wheat Ridge, CO: Society of Range Management.
  • Buxton EA, Hopkins BG, Jolley VD, Webb BL, Christensen RC. January (1st Quarter/Winter), 2012. Iron efficiency in Kentucky bluegrass not related to phytosiderophore release. 2nd ed. Philadelphia, PA: Journal of Plant Nutrition.
  • Nichols BA, Hopkins BG, Jolley VD, Webb BL, Greenwood BG, Buck JR. January (1st Quarter/Winter), 2012. Phosphorus and zinc interactions and their relationships with other nutrients in maize grown in chelator-buffered nutrient solution. 1-4th ed. Philadelphia, PA: Journal of Plant Nutrition.
  • Hill MW, Ransom CJ, Hopkins BG. December, 2011. Improving phosphorus use efficiency with Carbond® P and dicarboxylic acid polymer (AVAIL®) fertilizer additives. Bohl, William, editors. Moscow, ID: University of Idaho.
  • Hopkins BG. 2011. Increasing Yield and Tuber Quality with Carbond P. Baum, Tyler, editors. Idaho Falls, ID: Harris Publishing.
  • Gneck J, Geary BD, Johnson DA, Hopkins BG, Jolley VD. 2011. Influence of Differing Phosphorus Levels on Infection Severity of Collectotrichum coccodes in Russet Burbank Potato Roots. New York, NY: Springer.
  • Hill MW, Ransom CJ, Babbel LA, LeMonte JJ, Hopkins BG. 2011. Phosphorus Use Efficiency Improvement with Organic Acid Ligand Exchange. New York, NY: Springer.
  • LeMonte JJ, Taysom TW, Hopkins BG. 2011. Polymer Coated Urea in Potato. New York, NY: Springer.
  • Madsen MD, Zvirzden DL, Petersen SL, Roundy BA, Hopkins BG, Chandler DG. October (4th Quarter/Autumn), 2011. Soil water repellency within a burned piñon-juniper woodland: spatial distribution, severity, and ecohydrologic implications . Madison, WI: Soil Science Society of America.
  • Barben SA, Hopkins BG, Jolley VD, Webb BL, Nichols BA, Buxton EA. April (2nd Quarter/Spring), 2011. Zinc, manganese and phosphorus relationships and their effects on iron and copper in chelator-buffered solution grown Russet Burbank potato. 5-8th ed. Philadelphia, PA: Journal of Plant Nutrition.
  • Hopkins BG. March, 2011. Advances in nutrient use efficiency. Norcross, GA: International Plant Nutrition Institute.
  • Ransom CJ, Hopkins BG. March, 2011. Dicarboxylic acid polymer (AVAIL®) phosphorus fertilizer additive: Review. Norcross, GA: International Plant Nutrition Institute.
  • LeMonte JJ, Hopkins BG, Summerhays JS, Jolley VD. March, 2011. Polymer coated urea: Impacts on water/air quality with surface application to permanent sod . Robert Flynn, editor. Brookings, SD: International Plant Nutrition Institute.
  • Jolley VD, Bernards ML, Hopkins BG, Buxton EA. November, 2010. Corn hybrids differ in their diurnal pattern of phytosiderophore release during Fe-deficiency stress. Madison, WI: CSA.
  • Ransom C, Hopkins BG, LeMonte JJ, Jolley VD, Webb BL, Babbel L. November, 2010. Improving phosphorus use efficiency with organic acid complexation: Corn. Madison, WI: CSA.
  • Summerhays JS, LeMonte JJ, Hopkins BG, Jolley VD, Webb BL. November, 2010. Nitrogen use efficiency and potato yield with polymer coated urea. Madison, WI: CSA.
  • Hopkins BG, LeMonte JJ, Summerhays JS, Jolley VD, Webb BL. November, 2010. Nitrogen use efficiency in Kentucky bluegrass. Madison, WI: CSA.
  • LeMonte JJ, Hopkins BG, Summerhays JS, Jolley VD, Terry RE. November, 2010. Nitrous oxide and ammonia emissions from turfgrass: Urea vs polymer coated urea. Madison, WI: CSA.
  • Hill MW, Hopkins BG, LeMonte JJ, Hopkins TJ, Jolley VD, Webb BL. November, 2010. Phosphorus flux in soil increased with organic acid complexation. Madison, WI: CSA.
  • Spratling TL, Perry DL, Dix WM, Hardy GH, Hopkins BG, Geary BD. October (4th Quarter/Autumn), 2010. An Ounce of Prevention: Take-all Disease and Soil pH. 4th ed. Idaho Falls, ID: Harris Publishing.
  • Hopkins BG, Ellsworth JW, Bowen TR, Cook AG, Stephens SC, Jolley VD, Shiffler AK, Eggett DL. October (4th Quarter/Autumn), 2010. Phosphorus Fertilizer Timing for Russet Burbank Potato Grown in Calcareous Soil. 4th ed. Philadelphia: Taylor & Francis.
  • Hopkins BG, Stark J. October (4th Quarter/Autumn), 2010. Potato Nutrition. Bohl and Johnson, editors. Orono, ME: Potato Association of America.
  • Hopkins BG. October (4th Quarter/Autumn), 2010. Rotations. Bohl and Johnson, editors. Orono, ME: Potato Association of America.
  • Gneck JJ, Geary BD, Johnson DA, Hopkins BG, Jolley VD. September, 2010. Influence of differing phosphorus levels on infection severity of Colletotrichum coccodes in russet Burbank potato roots.
  • Hopkins BG, Ellsworth JW, Shiffler AK, Cook AG, Bowen TR. July (3rd Quarter/Summer), 2010. Monopotassium Phosphate as an In-Season Fertigation Option for Potato. 10th ed. Philadelphia, PA: Taylor & Francis.
  • Hopkins BG, Ellsworth JW, Shiffler AK, Bowen TR, Cook AG. July (3rd Quarter/Summer), 2010. Pre-Plant Versus In-Season Application of Phosphorus Fertilizer for Russet Burbank Potato Grown in Calcareous Soil. 7th ed. Philadelphia, PA: Taylor & Francis.
  • Jolley VD, Hopkins BG. June, 2010. Building on the legacy of Arthur Wallace: Practical aspects of iron nutrition in plants and soils. Budapest: ISINIP.
  • Hopkins BG, Christensen RC, Jolley VD, Webb BL. June, 2010. Elemental sulfur impregnated with iron as a fertilizer source for Kentucky Bluegrass. Budapest: ISINIP.
  • Hopkins BG, LeMonte JJ. June, 2010. Growth Spurts: Impacting Hormones in Sugarbeets. 6th ed. Idaho Falls, ID: Harris Publishing.
  • Buxton EA, Hopkins BG, Jolley VD, Webb BL, Christensen RC. June, 2010. Iron efficiency in Kentucky bluegrass not related to phytosiderophore release. Budapest: ISINIP.
  • Bernards ML, Jolley VD, Buxton EA, Hopkins BG. June, 2010. Maize hybrids differ in their 24-hour patterns of phytosiderophore release. Budapest: ISINIP.
  • Geary BD, Hopkins BG, Jolley VD, Benson J, Miller J, Stevens MR. April (2nd Quarter/Spring), 2010. Nutrient and pathogen interactions in potato: impacts of pH and calcium on pink rot disease development. Bohl, editor. Moscow, ID: University of Idaho.
  • Barben SA, Hopkins BG, Jolley VD, Webb BL, Nichols BA. April (2nd Quarter/Spring), 2010. Optimizing phosphorus and zinc concentrations in hydroponic chelator-buffered nutrient solution for Russet Burbank potato. 4th ed. Philadelphia, PA: Taylor & Francis.
  • Barben SA, Hopkins BG, Jolley VD, Webb BL, Nichols BA. April (2nd Quarter/Spring), 2010. Phosphorus and manganese interactions and their relationships with zinc in chelator-buffered solution grown Russet Burbank potato. 5th ed. Philadelphia, PA: Taylor & Francis.
  • Barben SA, Hopkins BG, Jolley VD, Webb BL, Nichols BA. April (2nd Quarter/Spring), 2010. Phosphorus and zinc interactions in chelator-buffered solution grown Russet Burbank potato. 4th ed. Philadelphia, PA: Taylor & Francis.
  • Geary BD, Benson J, Miller J, Hopkins BG, Jolley VD, Stevens MR. February, 2010. Pink rot of potato, influence of pH and calcium on disease development.
  • Hopkins BG. February, 2010. Testing Carbond Technology. 2nd ed. Idaho Falls, ID: Harris Publishing.
  • Hopkins BG, Jolley VD, Webb BL, Callahan RK. January (1st Quarter/Winter), 2010. Boron fertilization and evaluation of four soil extractants: Russet Burbank potato. 5th ed. Philadelphia, PA: Taylor & Francis.
  • Geary BD, Morton J, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. January (1st Quarter/Winter), 2010. Adequate and High Nitrogen Represses Infection Severity of Colletotrichum coccodes in Russet Burbank Potato Roots. 1st ed. New York, NY: Springer.
  • Geary BD, Benson J, Hopkins BG, Jolley VD, Miller JS, Stevens MR. January (1st Quarter/Winter), 2010. Low pH and Calcium Levels Increase Infection Severity of Phytophthora erythroseptica in Russet Norkotah Potato Roots. 1st ed. New York, NY: Springer.

Presentations

  • Hopkins BG. Enhanced Efficiency Phosphorus Fertilizers . Servi-Tech Annual Professional Development Conference. January, 2021.
  • Hopkins BG, Hansen NC, Campbell CS. Irrigation: Grass Health, Surface Quality, and Sustainability. Sports Turf Managers Association Annual Conference. January, 2021.
  • Larsen I, Kerry R, Hansen NC, Hopkins BG. Spatial Statistics for Variable Rate Irrigation Zone Delineation. ASA SSSA CSSA Annual International Meeting. Isak won second prize in the student poster competition at the conference. November, 2020.
  • Burgin H, Hopkins BG, Hansen NC, Geary BD. Turfgrass. Crop Science Society . November, 2020.
  • Hopkins BG. Late Summer Management and Pandemic Impacts on the Sports Turf Industry. Sports Turf Managers Association Meeting. August, 2020.
  • Hopkins BG, Stapley S, Hansen NC, Yost M. Potato 4R Tour And Updates. USU Extension Crops Virtual Field Day. https://wwwyoutubecom/watch?v=pJBhO6Fymn8 . July, 2020.
  • Burgin HR, Wear G, Hansen NC, Hopkins BG. Mowing height and irrigation rate comparisons of Cynodon Dactylon (L) Pers x C Transvaalensis and Poa Pratensis L. Western Crop Science Society Meeting. July, 2020.
  • Fahning SR, Hopkins BG. Enhanced Efficiency Nitrogen Fertilizer: Coated Urea. Library/Life Sciences Undergraduate Poster Competition 2020. March, 2020.
  • Kobza SJ, Hopkins BG. Enhanced Efficiency Phosphorus Fertilizers. Library/Life Sciences Undergraduate Poster Competition 2020. March, 2020.
  • Hopkins BG. Chemical (eg Glyphosate) Exposure for Employees and Players: Health Concerns?. Intermountain Sports Turf Managers Association annual meeting. February, 2020.
  • Hopkins BG. North American Proficiency Testing Program (NAPT) - Update. Mid-Atlantic Soil Testing and Plant Analysis Work Group, CIG-P Meeting. February, 2020.
  • Hopkins BG. Phosphorus management in high yielding environments – Do data support existing critical levels? . Mid-Atlantic Soil Testing and Plant Analysis Work Group, CIG-P Meeting. February, 2020.
  • Hopkins BG. Soil Health Indicators. USU-NRCS Soil Health Conference. February, 2020.
  • Hopkins BG. Enhanced Efficiency Fertilizers: Yield and Environmental Considerations. Southwest Hay and Forage Conference. January, 2020.
  • Hopkins BG. Chemical (Glyphosate, Fertilizer, etc) Exposure: Health Concern?. Sports Turf Managers Association annual meeting.

    . January, 2020.
  • Hopkins BG. More "Pop" Per Drop: Smart Irrigation. Sports Turf Managers Association annual meeting. January, 2020.
  • Hopkins BG. Chemical (egglyphosate) exposure for employees and players: Health concern?. Sports Turf Managers Association (STMA) Annual Meet (Pre-conference Webinar). December, 2019.
  • Blackwelder JS, Bruce AM, Porter WH, Eves JE, Hopkins BG. Aquaponics nutrition studies with Pacu grown with lettuce and tomato: Methodology. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Hopkins BG. Biostimulants: Meta Analysis and Overview. ASA*CSSA*SSSA International Annual Meeting. A survey of major fertilizer companies indicates it is one of the top current trends in their businesses—with significant research, development, and investment However, this major trend in agriculture is fraught with misperception, confusion, and generally lacking credentialed recommendations Biostimulants are microorganisms and/or chemical substances which enhance plant growth and quality, often due to abiotic stress tolerance; excluding traditional pesticides, fertilizers, and soil amendments, such as limestone and gypsum Biostimulants can be classified in the following categories: 1) soil and geological extracts (most commonly humic and fulvic acids), 2) botanical and algal extracts, 3) microbial inoculants and extracts, 4) inorganic and synthetic compounds (such as silicon), and 5) animal hydrolysates and digests In our research, we have completed lab, greenhouse, and field trials with each of these classes of products (178 trials over the last two decades) Most of this work has been done in well managed, high yield environments with a variety of row crops, as well as turfgrass and alfalfa A meta-analysis shows only 22% of these trials resulted in significant positive increases in yields or quality parameters, with an average increase of 09% Most of the positive responses were with use of organic acids in combination phosphorus (P) fertilizer This data suggests that, when applied properly to soils with a high likelihood of response (low soil-test P with poor P solubility) that there is an increase in P uptake, often with a yield and/or quality increase The results of our other trials are less conclusive However, data from other researchers shows potential for these products, especially when used under stress conditions An overview of the state of biostimulants will be given, along a summary of various reviews on the topic . November, 2019.
  • Nolan EA, Woolley EA, Searle TG, Hopkins TJ, Williams JD, Hopkins BG. Boron uptake efficiency with a homogeneous potassium granule as a function of root system diameter. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Evans SR, Kopp KL, Johnson PG, Hopkins BG. Can smart irrigation controllers improve water use efficiency in urban landscapes?. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Woolley EA, Svedin JD, Kerry R, Hansen NC, Jensen RR, Hopkins AP, Hopkins BG. Comparing spatial variation of crop water productivity and moisture relations in potato and wheat. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Shumate S, Lowe E, Hansen NC, Hopkins BG. Drought and recovery responses of Kentucky Bluegrass with varying nitrogen fertility status. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Nelson SV, Madsen MD, Hansen NC, Anderson VJ, Hopkins BG. Hydrogel banding for increased soil moisture and range seeding establishment. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Cambell CS, Smith RG, Christensen RC, Hansen NC, Hopkins BG. Improving irrigation recommendations by combining high resolution temporal soil moisture with satellite synthetic aperture radar. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Hansen NC, Kerry R, Hopkins BG, Heaton MJ, Jensen RR, Smith RG. Informing variable rate irrigation with in-situ soil water sensors and remote sensing. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Cole DL, Stapley SH, Buck RL, Hopkins BG. New hydroponics system for testing mineral nutrient deficiencies and its application to Quinoa. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Carlock ET, Hopkins TJ, Hopkins BG. Polymer coated urea and urea blends on potato. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Fahning SR, Searle TG, Weigel AM, Buck RL, Hopkins BG. Polymer coated urea impact on barley protein and yield. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Hopkins AP, Hansen NC, Woolley, Woolley EA, Kerry R, Jensen RR. Remote sensing approaches for maximizing productivity of variable-rate irrigation systems. ASA*CSSA*SSSA International Annual Meeting. November, 2019.
  • Burgin HR, Wear G, Hansen NC, Hopkins BG. Drought, Cold, and Traffic Tolerance of Bermudagrass Cultivars in Arid Regions. BYU PWS Graduate Research Conclave. November, 2019.
  • Nelson SV, Madsen MD, Hansen NC, Anderson VJ, Hopkins BG. Hydrogel to Improve Seedling Establishment in Rangeland Restoration. BYU PWS Graduate Research Conclave. November, 2019.
  • Larsen IL, Woolley EA, Svedin JD, Hansen NC, Kerry R, Hopkins BG. Soil Water Modeling for Variable Rate Irrigation. BYU PWS Graduate Research Conclave. November, 2019.
  • Woolley EA, Svedin JD, Hansen NC, Kerry R, Hopkins BG. Spatio-Temporal Soil Water and Crop Stress Modeling for Variable Rate Irrigation. BYU PWS Graduate Research Conclave. November, 2019.
  • Hopkins AP, Hopkins BG, Hansen NC. Remote Sensing. PWS Conclave. November, 2019.
  • Hopkins BG. Fall turfgrass care is vital for year long success. UFOMA Annual Meeting. October, 2019.
  • Hopkins BG. Carbon Fertilization: Boom or bull?. CBIGG Golf Course Superintendent, Fall Summit. September, 2019.
  • Hopkins BG. Irrigation Water Quality: You can’t manage effectively what you don’t measure. CBIGG Golf Course Superintendent, Fall Summit. September, 2019.
  • Hopkins BG. Biostimulants: Boom or Bull. AAPFCO Industry Regulatory Counsel Summer Annual Meeting. A survey of major fertilizer companies indicates it is one of the top current trends in their businesses—with significant research, development, and investment However, this major trend in agriculture is fraught with misperception, confusion, and generally lacking credentialed recommendations Biostimulants are microorganisms and/or chemical substances which enhance plant growth and quality, often due to abiotic stress tolerance; excluding traditional pesticides, fertilizers, and soil amendments, such as limestone and gypsum Biostimulants can be classified in the following categories: 1) soil and geological extracts (most commonly humic and fulvic acids), 2) botanical and algal extracts, 3) microbial inoculants and extracts, 4) inorganic and synthetic compounds (such as silicon), and 5) animal hydrolysates and digests In our research, we have completed lab, greenhouse, and field trials with each of these classes of products (178 trials over the last two decades) Most of this work has been done in well managed, high yield environments with a variety of row crops, as well as turfgrass and alfalfa A meta-analysis shows only 22% of these trials resulted in significant positive increases in yields or quality parameters, with an average increase of 09% Most of the positive responses were with use of organic acids in combination phosphorus (P) fertilizer This data suggests that, when applied properly to soils with a high likelihood of response (low soil-test P with poor P solubility) that there is an increase in P uptake, often with a yield and/or quality increase The results of our other trials are less conclusive However, data from other researchers shows potential for these products, especially when used under stress conditions An overview of the state of biostimulants will be given, along a summary of various reviews on the topic . August, 2019.
  • Svedin JD, Hansen NC, Kerry R, Hopkins BG. Modeling spatiotemporal variations in crop water stress for variable rate irrigation . European Conference on Precision Agriculture. To meet growing demands for freshwater resources farmers are required to increase irrigation efficiency and food production per unit of applied water Variable-rate irrigation (VRI) is a promising tool to conserve water resources by matching irrigation rates spatially to crop water demand Plant available water is reflected in physical soil properties, therefore quantifying the variation of these properties, and their influence on crop water demand, is essential for effective irrigation zones The objectives of this study were to: (i) characterize the spatial variation of soil hydraulic properties specifically soil water holding capacity, (ii) model subsequent spatiotemporal variation of soil water and crop stress, and (iii) measure winter wheat (Triticum aestivum sp) yield at modeled locations to inform future VRI management Soil samples at 90 locations in a 22 ha field were collected at spring green-up and post-harvest for two growing seasons of winter wheat in Grace, Idaho, USA The SWHC was characterized and daily soil moisture and crop water stress modelled between sampling points using a daily soil water balance The range in SWHC for a 12 m deep profile was 144-369 mm, a large variation given a field with limited variation in topography and soil texture The range between the first and last points to experience modeled water stress was 21 and 56 d under uniform and variable rate irrigation respectively Despite the large temporal variation in the onset of crop water stress, it was not significant in predicting yield through multiple linear regression for either season This suggests that interactions between the spatial variation of soil hydraulic properties and other environmental factors dictate the variation of yield for this field Developing robust VRI prescriptions may require a suite of environmental variables such as soil hydraulic properties, soil fertility, topography, and crop growth to match irrigation application to spatial crop water demand. July, 2019.
  • Hopkins BG. Phosphorus in Plants. NUEUNIVERSITY. July, 2019.
  • Hopkins BG. Phosphorus in Soil. NUEUNIVERSITY. July, 2019.
  • Hansen NC, Hopkins BG. Update on Variable Rate Irrigation (VRI) at BYU. USU Extension Crops Field Day. https://wwwyoutubecom/watch?v=pJBhO6Fymn8 . July, 2019.
  • Hopkins BG. Overview of biostimulants efficacy. 4R Nutrient Stewardship Summit. A survey of major fertilizer companies indicates it is one of the top current trends in their businesses—with significant research, development, and investment However, this major trend in agriculture is fraught with misperception, confusion, and generally lacking credentialed recommendations Biostimulants are microorganisms and/or chemical substances which enhance plant growth and quality, often due to abiotic stress tolerance; excluding traditional pesticides, fertilizers, and soil amendments, such as limestone and gypsum Biostimulants can be classified in the following categories: 1) soil and geological extracts (most commonly humic and fulvic acids), 2) botanical and algal extracts, 3) microbial inoculants and extracts, 4) inorganic and synthetic compounds (such as silicon), and 5) animal hydrolysates and digests In our research, we have completed lab, greenhouse, and field trials with each of these classes of products (178 trials over the last two decades) Most of this work has been done in well managed, high yield environments with a variety of row crops, as well as turfgrass and alfalfa A meta-analysis shows only 22% of these trials resulted in significant positive increases in yields or quality parameters, with an average increase of 09% Most of the positive responses were with use of organic acids in combination phosphorus (P) fertilizer This data suggests that, when applied properly to soils with a high likelihood of response (low soil-test P with poor P solubility) that there is an increase in P uptake, often with a yield and/or quality increase The results of our other trials are less conclusive However, data from other researchers shows potential for these products, especially when used under stress conditions An overview of the state of biostimulants will be given, along a summary of various reviews on the topic . June, 2019.
  • Hopkins BG. Turf Selection and Cultural Practices. Spring School IPM Meeting: Turf & Turf Pests. May, 2019.
  • Buck RL, Hopkins BG. Soils Mini-Course for Landscape Architects. Utah Chapter of the American Society of Landscape Architects Annual Meeting. May, 2019.
  • Hopkins BG. Overview of Biostimulants Efficacy. Western Nutrient Management Conference. March, 2019.
  • Nelson SV, Lawrence R, Madsen MD, Hansen NC, Anderson VJ, Hopkins BG. Hydrogel rate and depth: Impact on soil water and seedling establishment. 72nd Society of Range Management Annual Meeting. Revegetation of disturbed rangeland is often hindered by low precipitation Invading annual grasses germinate earlier, thus depleting water resources Using hydrogel’s (HG) super absorbency to create a wider establishment window is a possible solution Previous glasshouse studies indicated banding HG buried at 75 cm increased soil moisture and seedling longevity under drought conditions These results were field tested with bottlebrush squirreltail [Elymus elymoides (Raf) Swezey] and Vavilov II Siberian wheatgrass [Agropyron fragile (Roth) Candargy] at two Great Basin locations established November 2017 HG bands were applied at rates of 0, 1500, 3000, and 6000 kg ha-1 at 75 cm depth at both locations and also 25 cm at one Soil moisture was measured monthly spatially (in every plot) and temporally (every 2 h in select plots at one location) Similar to the glasshouse studies, deep HG placement increased soil moisture an average of 174 and 137% in April and May, respectively The differences disappeared by June Shallow HG placement initially had similar results with a 149% increase in moisture in April, but the trend reversed with the non-HG treatments having 22, 63, and 24% more moisture than HG treatment in May, June, and August, respectively Buried sensors corroborated these findings Useable soil moisture existed for six d longer in HG plots during spring, but the trend reversed with these plots being well below the permanent wilting point in the summer while controls were not Despite initially higher soil moisture, HG negatively affected longevity of both species We attribute these findings to the HG causing extreme cracking in the soil that, despite initially holding onto more soil moisture, resulted in eventual moisture depletion and poor seed establishment conditions Future work will evaluate lower HG rates and deeper placement to prevent soil cracking—possibly increasing both moisture retention and seedling longevity. February, 2019.
  • Hopkins BG. Carbon fertilization: Snake oil or the next big thing? . Sports Turf Managers Association (STMA) Annu Meet (Pre-conference Webinar). January, 2019.
  • Hopkins BG. Carbon fertilization: Snake oil or the next big thing? . STMA Annual Meeting. January, 2019.
  • Hopkins BG. University research update panel: Report on our research on nitrogen and water management. STMA Annual Meeting. January, 2019.
  • Evans SR, Kopp KL, Johnson PG, Hopkins BG. A comparison of smart controllers in the urban landscape. ASA•CSSA International Annual Meeting. November, 2018.
  • Cole DL, Tyler A, Lambert A, Nelson SV, Billin T, Hopkins BG. A new hydroponic system for testing mineral nutrient deficiencies in plants. ASA•CSSA International Annual Meeting. November, 2018.
  • Hopkins BG, Hopkins TJ. Enhanced efficiency fertilizers in turfgrass: A review. ASA•CSSA International Annual Meeting. November, 2018.
  • Hopkins BG, Hopkins TJ. Enhanced efficiency nitrogen fertilizers: A review. ASA•CSSA International Annual Meeting. November, 2018.
  • Hopkins BG, Hopkins TJ. Enhanced efficiency phosphorus fertilizers: Review. ASA•CSSA International Annual Meeting. November, 2018.
  • Wilcox M, Hollist C, Hopkins BG, Searle TG, Williams JD. Granulated homogeneous micronutrient fertilizers: Impact on potato yield and quality. ASA•CSSA International Annual Meeting. November, 2018.
  • Weigel AM, Hopkins BG, Searle TG. Granulated homogenous potassium and boron fertilizer: Impact on alfalfa quality and yield. ASA•CSSA International Annual Meeting. November, 2018.
  • Campbell CS, Hopkins BG, Hansen NC, Svedin JD, Smith R. Integrating remote sensing and spatiotemporal data to improve variable rate irrigation systems. ASA•CSSA International Annual Meeting. November, 2018.
  • Valencia MC, Nelson SV, Lawrence R, Hansen NC, Madsen MD, Anderson VJ, Petersen SL, Hopkins BG. Phosphorus fertilizer and hydrogel for rangeland seedling success. ASA•CSSA International Annual Meeting. November, 2018.
  • Wilcox M, Rawlins T, Searle TG, Hopkins BG, Williams JD. Polymer coated and uncoated urea blends: Impact on Russet Burbank potato yield and quality. ASA•CSSA International Annual Meeting. November, 2018.
  • Wilcox M, Hopkins BG, Searle TG, Williams JD. Polymer coated urea impact on barley yield, flag leaf nitrogen, and protein. ASA•CSSA International Annual Meeting. November, 2018.
  • Hopkins AP, Hansen NC, Hopkins BG, Campbell CS. Remote Sensing Approaches to Improve Water and Nitrogen Management of Kentucky Bluegrass. ASA•CSSA International Annual Meeting. November, 2018.
  • Svedin JD, Hansen NC, Kerry R, Hopkins BG. Spatial variation in winter wheat crop water productivity to inform variable-rate irrigation. ASA•CSSA International Annual Meeting. November, 2018.
  • Svedin JD, Woolley EA, Hansen NC, Kerry R, Hopkins BG. Spatio-temporal soil water and crop stress modeling for variable rate irrigation. ASA•CSSA International Annual Meeting. November, 2018.
  • Zeyer SM, Svedin JD, Porter CH, Cole DC, Hopkins TJ, Hopkins BG. Struvite as an enhanced efficiency phosphorus fertilizer for sugarbeet and potato. ASA•CSSA International Annual Meeting. November, 2018.
  • Nelson SV, Lawrence R, Madsen MD, Hansen NC, Anderson VJ, Hopkins BG. Hydrogel rate and depth: Impact on soil water and seedling establishment. Graduate Student Conclave. Low precipitation often hinders revegetation of disturbed rangeland Invading annual grasses germinate earlier, depleting water resources One possible solution is creating a wider establishment window using hydrogel’s (HG) super-absorbency Glasshouse drought studies show HG bands buried at 75 cm increase soil moisture and seedling longevity These results were field tested with bottlebrush squirreltail [Elymus elymoides (Raf) Swezey] and Vavilov II Siberian wheatgrass [Agropyron fragile (Roth) Candargy] at two Great Basin locations established November 2017 HG bands were applied at rates of 0, 1500, 3000, and 6000 kg ha-1 at 25 or 75 cm depths Soil moisture was measured monthly spatially (every plot) and every 2 h temporally (select plots) The deep HG placement increased soil moisture an average of 174 and 137% in April and May, respectively The differences disappeared by June Shallow HG placement initially had similar results with a 149% increase in moisture in April The trend reversed with the non-HG treatments having 36% more moisture than HG treatments in the summer Buried sensors corroborated these findings Useable soil moisture existed for six d longer in HG plots during spring but dropped well below the permanent wilting point during summer while controls did not Despite initially higher soil moisture, HG negatively affected longevity of both species We attribute these findings to HG inducing extreme soil cracking resulting in eventual moisture depletion and poor seedling establishment conditions Lower HG rates or deeper placement may prevent soil cracking, possibly increasing both moisture retention and seedling longevity . November, 2018.
  • Woolley EA, Svedin JD, Hansen NC, Kerry R, Hopkins BG. Spatio-temporal soil water and crop stress modeling for variable rate irrigation. Graduate Student Conclave. November, 2018.
  • Hopkins BG. Enhanced efficiency nitrogen and phosphorus fertilizers. WERA-103 Webinar. July, 2018.
  • Hopkins BG. Nitrogen management innovations. Shoshone Bannock Tribe Grower's Meeting. March, 2018.
  • Hopkins BG. Heavy Traffic: Successes and failures. IMSTMA Annual Meeting. February, 2018.
  • Hopkins BG. Potato Rotations and Soil Fertility/Plant Nutrition. Lamb Weston Seminar. February, 2018.
  • Parkinson ME, Madsen MD, Hopkins BG, Hansen NC. Use of phosphorus fertilizer as a seed coating enhance seedling growth of bluebunch wheatgrass. 71st Annual Meeting for the Society for Range Management . January, 2018.
  • Nelson SV, Valencia MC, Black H, Petersen W, Svedin JD, Hansen NC, Madsen MD, Anderson VJ, Hopkins BG. The effect of polyacrylamide rate and depth on soil water storage and seedling establishment. SRM Annual Meeting. Post-disturbance rangeland revegetation is hindered in areas of low precipitation facing invasion by annual grasses The invaders germinate earlier and deplete water resources available to native and introduced perennial species The use of polyacrylamide (PAM), a super absorbent polymer, is a possible solution because of its ability to hold water in the soil creating a potentially wider establishment window Previous glasshouse studies indicated that PAM in bands in the soil increased the longevity of associated seedlings in drought conditions The current study determined the optimal depth of PAM placement for water storage and seedling growth Bottlebrush squirreltail [Elymus elymoides (Raf) Swezey] seed was planted in 10 cm x 10 cm x 24 cm pots containing PAM at rates of 0, 1500, and 3000 kg ha-1 placed in a layer at 0, 25, 75, and 15 cm below the soil surface Relative to the control, the 75 and 15 cm depth PAM treatments increased the time with elevated soil moisture by 17 and 7 days, respectively At the high PAM rate applied at the 75 and 15 cm depths the seedling longevity increased by 15 and 11%, respectively Seedling height was significantly affected by both PAM rate and depth, with a 7% increase at the 1500 kg ha-1 rate at the 25 cm depth and a 15% increase at the 3000 kg ha-1 rate at the 75 cm depth The number of blades per seedling was significantly influenced by rate, but not depth, with an 18% increase in blade number at the high rate, but the low rate produced an 8% decrease on day 77 after saturation These data suggest that PAM has potential to improve seedling establishment in revegetation activities . January, 2018.
  • Hopkins BG. Advanced soil science for the sports turf Professional. STMA Annual Meeting. http://penxycom/suki . January, 2018.
  • Douglas C, Hopkins BG. Enhanced efficiency fertilizers in sports turf. STMA Annual Meeting. January, 2018.
  • Crosland M, Peacock B, Geary BD, Hopkins BG. Nitrogen and Rhizoctonia solani interactions in creeping bentgrass (Agronstis stolonifera L) . STMA Annual Meeting. January, 2018.
  • Hastriter A, Russell K, Hopkins BG. Nitrogen and water interactions in Kentucky bluegrass (Poa pratensis L). STMA Annual Meeting. January, 2018.
  • Pedigo A, Svedin JD, Hopkins BG. Polymer coated urea in Kentucky bluegrass (Poa pratensis L). STMA Annual Meeting. January, 2018.
  • Hopkins BG. Enhanced Efficiency Fertilizer: Environmental and Economic Impacts. Enhanced Efficiency Fertilizer Webinar. November, 2017.
  • Svedin JD, Kerry R, Hansen NC, Hopkins BG. Informing irrigation management from spatial variation in 'Crop per Drop'. Graduate Student Conclave. November, 2017.
  • Nelson SV, Valencia MC, Black H, Lawrence R, Anderson VJ, Madsen MD, Hansen NC, Hopkins BG. Polyacrylamide (PAM) for Increasing Soil Moisture and Seeding Success. Graduate Student Conclave. November, 2017.
  • Hopkins BG. Potato Rotations and Soil Fertility/Plant Nutrition. Montana Seed Potato Seminar. November, 2017.
  • Hopkins BG. Advanced Soil Science for the Sports Turfgrass Professional. STMA Pre-Conference Webinar. http://wwwmeetingburnercom/b/kristen2/watch?c=317RVN&h=f. November, 2017.
  • Svedin JD, Kerry R, Hansen NC, Hopkins BG. Meeting plant requirements while mitigating environmental impactsDeveloping irrigation zones from a field scale crop water productivity map. Agronomy Crop and Soil Science Societies of America Annual Meeting. Water is an essential resource to the productivity of agriculture, particularly in arid or semi-arid regions Water scarcity threatens sustainable food production and population expansion in regions dependent upon irrigation Variable rate irrigation (VRI) is a promising technology capable of increasing water productivity by adjusting the irrigation rate to match field variability in soil properties, yield potential, topography, etc However, grower adoption of VRI is limited from lack of research and decision support systems A field scale crop water productivity (CWP) analysis in a 22 ha field with winter wheat (Triticum sp) was evaluated under three grower determined irrigation zones (0%, 90% and full irrigation) near Grace, ID, USA in 2016 Crop water productivity was calculated as yield over seasonal evapotranspiration (ET), where ET was determined using a water balance method including seasonal precipitation, irrigation, and pre- and post-season soil moisture at 80 sampling locations The spatial variation of CWP ranged from 46-256 kg ha-1 mm-1 with an average of 168 kg ha-1 mm-1 The average for the 90% zone was 179 kg ha-1 mm-1 and the 0% irrigation zone overlaid exposed bedrock so there was no yield data; but the VRI system allowed 100% water savings in this zone The CWP layer identified spatial variation in crop water demand and potential management locations where irrigation was over or under applied The average CWP for the 90% zone was greater than the field average, but the current VRI zones had little influence on CWP spatial variability, indicating underutilization of the VRI system Using the CWP analysis with yield history and grower experience, the 2017 irrigation zones were altered attempting to conserve water by maximizing the crop produced per unit of applied water Growers standard test strips overlay the altered irrigation zones to investigate the effectiveness of this irrigation strategy. October, 2017.
  • Hopkins AP, Hansen NC, Hopkins BG, Russell K. Nitrogen and irrigation interactions in water-stressed turfgrass species. Agronomy Crop and Soil Science Societies of America Annual Meeting. Turfgrass is the leading irrigated crop in the US and is under scrutiny with regard to water conservation Perennial ryegrass (Lolium perenne L) was evaluated with all combinations of two irrigation and three N rates The grass was seeded under glasshouse conditions for 42 d in 009 m wide square pots with a depth of 03 m in a sand/peat (90/10 v/v) rooting media (meeting ASTM specifications for sand based sports fields) The irrigation treatments included a full replacement of average daily evapotranspiration achieved by daily irrigation to field capacity and a limited irrigation treatment achieved by daily irrigation to 60% of the field capacity The N rates were 10, 50, and 250 kg ha-1 for the deficient, optimum, and excessive treatments, respectively Nitrogen application was split-applied weekly as liquid ammonium nitrate —adding any captured leachate back to each pot to eliminate N loss Generally, plants appeared healthier and had higher NDVI with full irrigation and optimum N rate Excessive N resulted in reduced root growth relative to the optimum rate During the first 15 d of water stress, the water use for the fully irrigated treatment at the optimum N rate was 180% less and 35% more than the excessive and deficient N treatments, respectively The water use for the drought stressed plants at the optimum N rate was 38% less and 85% more than the excessive and deficient N treatments, respectively However, the effect reversed after 15 days for the low N rate, with 110 and 188% increased water use for the drought stressed and fully irrigated plants, respectively These results indicate that N management influences ET in perennial ryegrass Water conservation will be achieved by optimizing the N rate and avoiding excessive or deficient N. October, 2017.
  • Nelson SV, Petersen W, Svedin JD, Hansen NC, Madsen MD, Anderson VJ, Hopkins BG. Polyacrylamide for increasing soil moisture and seeding success. Agronomy Crop and Soil Science Societies of America Annual Meeting. The US Air Force trains with live munitions on a desert range west of Salt Lake City, Utah They are committed to ecological restoration on lands damaged by resultant fire However, revegetation is challenging due to low average annual rainfall of ~25 cm Applications of subsurface polyacrylamide (PAM) were evaluated to determine the effects on establishment of Agropyron cristatum, Melilotus officinalis, Artemisia tridentata, Bassia prostrata, Linum lewisii, and Elymus elymoides under glasshouse conditions in a loam collected from the US Air Force training grounds Seeds were planted at the bottom of a furrow in 013 m2 boxes with 004 m between top of the ridge and bottom of the furrow and 0, 20, or 40 g PAM band-1, the equivalent to rates of 0, 1500, and 3000 kg PAM ha-1, applied across a 043 m length at 008 m below soil surface in the furrow, with 003 m of soil below the band Each species was planted separately in a row perpendicular to the furrow The soil was initially watered once to saturation Volumetric soil moisture in the furrow was 200 and 500% greater than the control for the 20 and 40 g PAM treatments, respectively, on day 21 Linum lewisii, Melilotus officinalis, Agropyron cristatum, and Bassia prostrata lived 10, 12, 13, and 23 days longer than the control for the 40 g treatment with less pronounced improvements seen at the 20 g rate Application of PAM has promise for improving restoration success, although further studies are needed to evaluate PAM combinations with seeding rate reductions to avoid excessive competition. October, 2017.
  • Porter WH, Svedin JD, Hopkins TJ, Hopkins BG. Polymer coated urea research summary: Meeting plant requirements while mitigating environmental impacts. Agronomy Crop and Soil Science Societies of America Annual Meeting. Fertilization is fundamental to agriculture Nitrogen (N) is half of the global fertilizer input, but plant N recovery is inefficient due to system “leaks” causing air and water pollution Inefficiency wastes resources and can reduce yields, quality, and profits Optimal source, rate, timing, and placement increase Nitrogen-use efficiency (NUE) Polymer coated urea (PCU) is an N fertilizer that can reduce N loss to background levels A summary of our laboratory, glasshouse, and field research trials comparing PCU to urea shows dramatic increases in NUE by decreasing N loss to air and water Average ammonia volatilization and nitrous oxide emissions were lower for PCU by 300 and 120%, respectively In studies with plants growing in fertilized soil, residual nitrate was 38% lower for PCU compared to uncoated urea The N losses for PCU fertilized plants were nearly the same as the background levels in the controls PCU resulted in significant improvements in crop yields and/or quality (average increase across our trials in potato, corn, and small grain yields is 9%) or at least equivalent to uncoated urea when managed properly However, timing of application is critical—basing application on matching release curves to crop requirements In addition, tissue analysis calibration may need adjustment For example, PCU results in a reduction in potato petiole nitrate-N concentrations of ~2,000 mg kg-1 without yield reduction Widespread use of PCU is warranted in most crops if costs are reasonably close to uncoated urea—resulting in improved environmental quality and agronomic productivity. October, 2017.
  • Valencia MC, Svedin JD, Hopkins TJ, Hopkins BG. Rate, Timing, Placement and Enhanced Fertilizer Sources for Improving Phosphorus Use Efficiency. Agronomy Crop and Soil Science Societies of America Annual Meeting. Phosphorus (P) fertilization is essential for sustaining society However, plant P uptake is inefficient due to poor soil P solubility, especially in potatoes (Solanum tuberosum L) This is due to poor rooting efficiency and high demand Phosphorus use efficiency (PUE) improves approximately two to three fold with correct rate, timing, placement, and by using enhanced efficiency fertilizer products (EEF) as evidenced by several dozen studies conducted over nearly two decades But how do these efficiencies work in concert with each other and with EEF products? Our findings show various technologies and management systems account for the interactions between source, rate, timing, and placement For example, research on two EEF products showed they were no better than traditional P sources at standard rates However, reducing the P rate by approximately 50% increased yield and crop quality by 5-8% compared to traditional fertilizer applied at the same rate In another example, failing to account for high residual soil test phosphorus levels resulted in poor PUE and even reductions in yields when EEF products were used in these conditions Alone or in combination, these techniques offer an opportunity to increase PUE A review of our findings shows yields increased an average of 62% when EEF were used at the correct rate, timing, and placement. October, 2017.
  • Hopkins BG, Svedin JD. Polymer-Coated Urea in Potato. Agrium ESN Field Day. July, 2017.
  • Svedin J, Kerry R, Hansen NC, Hopkins BG. Using a field scale crop water productivity layer to develop variable rate irrigation zones. European Conference on Precision Agriculture. Water is a very valuable resource to the productivity of agriculture, particularly in arid or semi-arid areas In such regions which depend upon irrigation, water scarcity threatens regional population expansion and sustainable food production Variable rate irrigation (VRI) is a promising technology capable of increasing water productivity by varying the irrigation rate to match variability in soil properties, yield potential, and topography However, grower adoption of variable rate irrigation has been limited due to lack of research and decision support systems A field scale crop water productivity (CWP) analysis of the 2016 winter wheat (Triticum sp) evaluated three (0%, 90% and full irrigation) grower determined irrigation zones in Grace, ID, USA The crop water productivity (CWP) layer is based on the amount of yield produced from seasonal evapotranspiration (ET) Calculation of seasonal ET used a water balance method by measuring seasonal precipitation, irrigation, and pre- and post-season soil moisture at 80 sampling locations The spatial variation of CWP ranged from 46-256 kg ha-1 mm-1 with an average of 168 kg ha-1 mm-1 The average for the 90% zone was 179 kg ha-1 mm-1 and the 0% irrigation zone overlaid a rocky outcrop so there was no yield data for these locations The CWP layer identified spatial variation in crop water demands and locations where irrigation was over or under applied Though the average CWP for the 90% zone was greater, the current VRI zones had little influence on the CWP variability indicating that the VRI system was underutilized Altered irrigation zones for the 2017 season are based on yield potential, 2016 CWP, and grower experience The irrigation zones have been altered to conserve water by maximizing the crop produced per unit of water applied and will be tested during the 2017 season . July, 2017.
  • Hopkins BG. Mode of Action, Effectiveness, and Value of Enhanced Efficiency Macro- and Micronutrient Fertilizer Products. 4R Nutrient Stewardship Summit. Enhanced Efficiency Fertilizers (EEF) are fertilizers or additives for improving Nutrient Use Efficiency (NUE) and minimizing environmental risks Most are nitrogen and phosphorus products, but other nutrients as well Nitrogen EEF products focus on minimizing conversion of urea to ammonium or ammonium to nitrate to avoid environmental losses A wide array of slow and control release fertilizer exists, as well as products classified as inhibitors Many are highly effective with varying cost effectiveness For example, hundreds of trials show polymer coated urea (PCU), a control release fertilizer, is effective However, adjustments must be made in its handling and crop management Coatings can crack if mishandled, rendering it identical to regular urea Also, interpretive values for in-season soil and tissue analysis may need to be adjusted Some inhibitors are also effective under conditions when risk nitrogen loss is high Comparative studies show similar effectiveness in reducing nitrogen loss, but PCU resulted in 39% higher yields than inhibitors on crops sensitive to steady seasonal nitrogen supply, but no difference on other less sensitive crops Phosphorus EEF products focus on overcoming solubility issues for this nutrient when applied to soil Various organic acid based products are proven, but not for every circumstance A product limiting dissolution until root contact is also seemingly effective Various potassium, sulfur, calcium, magnesium, and micronutrient products are proven EEF products as well However, many products claiming to be EEF, are not truly efficient and/or exorbitantly expensive A review of applied EEF product research will be given. June, 2017.
  • Nelson S, Petersen W, Svedin J, Madsen MD, Anderson VJ, Hansen NC, Hopkins BG. Mulch and polyacrylamide for increasing soil moisture and seeding success. Annual Meeting for the Society for Range Management. January, 2017.
  • Hopkins BG, Svedin JD, Christensen RC. On-Farm Fertilizer Management: Case Studies. Idaho Potato Conference. January, 2017.
  • Hopkins BG, Svedin JD. Soil Fertility and Plant Nutrition 101. Idaho Potato Conference. January, 2017.
  • Hopkins BG, Hansen NC, Kopp K. Don't Let Water Restrictions Strike You Out. STMA International Webinar Series. January, 2017.
  • Svedin J, Hansen NC, Kerry R, Hopkins BG. Variable rate irrigation and crop water productivity. ASA, CSSA, SSSA 2016 Annual Meeting. November, 2016.
  • Svedin JD, Kerry R, Hansen NC, Hopkins BG. Variable Rate Irrigation and Water Use Efficiency. Graduate Student Conclave. November, 2016.
  • Hopkins BG. Research Update. BYU-Idaho Field Day. July, 2016.
  • Hopkins BG. Polymer Coated Urea. Sports Turf Managers Association Annual Conference. January, 2016.
  • Hopkins BG. Turfgrass Fertilization. Utah Nursery and Landscape Association Annual Conference. January, 2016.
  • Hansen NC, Hopkins BG, Altenhofen J. Interaction of Irrigation, Nitrogen Management, and Crop Genetics on Water Productivity of Maize and Kentucky Bluegrass. ASA, CSSA, SSSA Annual Interantional Conference. November, 2015.
  • Black B, Geary BD, Hopkins BG. Nitrogen nutrition impact on incidence of Rhizoctonia infection of Agrostis stolinifera. American Phytopathological Society Annual Meeting. August, 2015.
  • Hopkins BG, Miller J. Focus on Potato. Statistics in Agriculture Webinar. February, 2015.
  • Carroll DA, Hansen NC, Hopkins BG, Terry RE. Nitrogen Management and Water Productivity of Limited Irrigation Corn. ASA, CSSA, SSSA Annual Interantional Conference. November, 2014.
  • Hopkins BG, Chappell M, Katseanes C. EQ/I Basic Research Program Close Out Project 11-008, Nutrient Quality-Intensity Relationships for Determining the Environmental Fate of Munition Constituents in the Soil Vadose Zone. Department of Defense Project Review Conference. March, 2014.
  • Hopkins BG, Smith TS, Henrie S, Gookin J. Portable Electric Fencing for Bear Deterrence and Conservation. Utah Chapter of the Wildlife Society Annual Meeting. March, 2014.
  • Hopkins BG, Albright E, Ransom CJ, Banfield J, Buck RL, Jolley VD. Evaluating Release Rates of Controlled and Slow Release Nitrogen Fertilizer. ASA-CSSA-SSSA 2013 International Annual Meetings. November, 2013.
  • Hopkins BG, Blair TA, Hill MW, Ransom CJ. Phorphorus and Organic Acid Bonding Enhances Uptake Efficiency in Crop Plants. ASA-CSSA-SSSA 2013 International Annual Meetings. November, 2013.
  • Hopkins BG, Katseanes C, Chappell M, Price C. Soil Fertility Status and Degradation of 2,4,6 Trinitrotoluene in Contaminated Soils. ASA-CSSA-SSSA 2013 International Annual Meetings. November, 2013.
  • Hopkins BG, Ransom CJ. Turf Response to Polymer Coated Urea. ASA-CSSA-SSSA 2013 International Annual Meetings. November, 2013.
  • Hopkins BG, Sutton LE, Ransom CJ, Blair TA, Jolley VD, Buck RL. Turf Response to Polymer- Sulfur Coated Urea. ASA-CSSA-SSSA 2013 International Annual Meetings. November, 2013.
  • Hopkins BG. Polymer Coated Urea in Field Crops. Polymer Coated Urea Symposia. November, 2013.
  • Hopkins BG, Ransom C. Polymer Coated Urea in Turfgrass. Polymer Coated Urea Symposia. November, 2013.
  • Hopkins BG. Organic Acid Chemistry. Floratine Conference. October, 2013.
  • Hopkins BG. Wetting Front Impacts the Turf, Environment, Pests, Profits. Water Week Conference. October, 2013.
  • Hopkins BG. Site-Assessment Writing. BYU Writing Across the Curriculum Conference. June, 2013.
  • Hopkins BG, Katseanes C, Chappell M, Price C. Soil Fertility Status and Degradation of 2,4,6 Trinitrotoluene in Contaminated Soils. Department of Defense Munitions Review. March, 2013.
  • Hopkins BG. Organic Acids. Idaho Potato Conference. March, 2013.
  • Hopkins BG. Phosphorus Use Efficiency. Idaho Potato Conference. March, 2013.
  • Hopkins BG. Soil and Petiole Analysis. Idaho Potato Conference. March, 2013.
  • Hopkins BG, Blair T, Hill MW, Ransom CJ. Phosphorus and Organic Acid Bonding Enhances Uptake Efficiency In Crop Plants. Western Nutrient Management Conference. March, 2013.
  • Hopkins BG, Sutton LE, Ransom CJ, Moody JJ, Manning KE, Bergsten SJ. Polymer Coated Urea (Duration) in Turfgrass: Impacts on Mowing, Visual, and Loss to Environment. Western Nutrient Management Conference. March, 2013.
  • Hopkins BG, Ransom CJ, Taysome TW, LaMonte JJ. Polymer Coated Urea: Impacts on Potato Crop and N Losses. Western Nutrient Management Conference. March, 2013.
  • Tsai E, Buck RL, Jolley VD, Webb BL, Hopkins BG. Field studies evaluating sulfur availability using ion exchange resin capsules. ASA-CSSA-SSSA 2011 International Annual Meeting. October, 2011.
  • Buck RL, Webb BL, Jolley VD, Hopkins BG. Field studies evaluating placement of ion exchange resins to assess nutrient availability in desert soils . ASA-CSSA-SSSA 2011 International Annual Meetings. October, 2011.
  • Brown TR, Hopkins BG, Hill MW, Jolley VD, Webb BL. Increasing phosphorus use efficiency with organic acids: Movement of P through soil. ASA-CSSA-SSSA 2011 International Annual Meetings. October, 2011.
  • Hopkins TJ, Hopkins BG, Christensen RC, Jolley VD, Webb BL. Nutrient uptake by Poa Pratensis from oxidation of elemental sulfur impregnated with micronutrients . ASA-CSSA-SSSA 2011 International Annual Meetings. October, 2011.
  • Ransom CJ, LeMonte JJ, Hopkins BG, Story TM, Jolley VD, Terry RE. Photoacoustic infrared spectroscopy to continuously measure nitrous oxide and ammonia emissions from soil . ASA-CSSA-SSSA 2011 International Annual Meetings. October, 2011.
  • LeMonte JJ, Hopkins BG, Jolley VD. Polymer coated urea (ESN): Increase in nitrogen use efficiency and potato tuber size and quality. ASA-CSSA-SSSA 2011 International Annual Meetings. October, 2011.
  • Jolley VD, Hill MW, Hopkins BG, Ransom CJ, Webb BL, Jolley VD. Increasing phosphorus solubility and uptake efficiency with organic acids . ASA-CSSA-SSSA 2011 Internationl Meetings. October, 2011.
  • Summerhays JS, Hopkins BG, Hill MW, Jolley VD, Webb BL. Increasing phosphorus use efficiency with organic acids: Crop yield . ASA-CSSA-SSSA International Annual Meetings. October, 2011.
  • Nordin A, Geary BD, Gneck J, Jolley VD, Hopkins BG, Merrell M, Baron A. Influence of pH, sulfur, chloride, and potassium on infection severity of Verticillium dahliae in Russet Burbank potato roots. Horticultural Science Annual Meetings. September, 2011.
  • Hopkins BG, Nordin A, Geary BD, Johnson DA, Gneck J, Jolley VD, Merrell M, Baron A. Influence of pH, sulfur, chloride, and potassium on infection severity of Verticillium dahliae in Russet Burbank potato roots. Potato Association of America. August, 2011.
  • LeMonte JJ, Hopkins BG, Summerhays JS, Jolley VD. Polymer coated urea: Impacts on water/air quality with surface application to permanent sod. Western Nutrient Management Meetings. March, 2011.
  • Jolley VD, Bernards ML, Hopkins BG, Buxton EA. Corn hydrids differ in their diurnal pattern of phytosiderophore release during Fe-deficiency stress. ASA-CSSA-SSSA International Annual Meeting . November, 2010.
  • Jones MP, Jolley VD, Webb BL, Vickery MD, Hopkins BG, Buck RL. Field studies comparing nutrient availability in low fertility soils using ion exchange resin capsules and conventional soil tests. ASA-CSSA-SSSA International Annual Meeting . November, 2010.
  • Ranson C, Hopkins BG, LeMonte JJ, Jolley VD, Webb BL, Babbell L. Improving phosphorus use efficiency with organic acid complexation: Corn. ASA-CSSA-SSSA International Annual Meeting . November, 2010.
  • Summerhays JS, LeMonte JJ, Hopkins BG, Jolley VD, Webb BL. Nitrogen use efficiency and potato yield with polymer coated urea. ASA-CSSA-SSSA International Annual Meeting . November, 2010.
  • Hopkins BG, LeMonte JJ, Summerhays JS, Jolley VD, Webb BL. Nitrogen use efficiency in Kentucky bluegrass. ASA-CSSA-SSSA International Annual Meeting . November, 2010.
  • LeMonte JJ, Hopkins BG, Summerhays JS, Jolley VD, Terry RE. Nitrous oxide and ammonia emissions from turfgrass: Urea vs polymer coated urea. ASA-CSSA-SSSA International Annual Meeting . November, 2010.
  • Hill MW, Hopkins BG, LeMonte JJ, Hopkins TJ, Jolley VD, Webb BL. Phosphorus flux in soil increased with organic acid complexation. ASA-CSSA-SSSA International Annual Meeting . November, 2010.
  • LeMonte JJ, Hopkins BG. Soil Fertility as it Relates to Degradation of Munition Constituents. Department of Defense Seminar. August, 2010.
  • Gneck J, Geary BD, Johnson DA, Hopkins BG, Jolley VD. Influence of differing phosphorus levels on infection severity of Collectotrichum coccodes in Russet Burbank potato roots. Potato Association of America Annual Meetings. August, 2010.
  • Jolley VD, Hopkins BG. Building on the legacy of Arthur Wallace: Practical aspects of iron nutrition in plants and soils. Fifteenth International Symposium on Iron Nutrition and Interactions in Plants. June, 2010.
  • Hopkins BG, Christensen RC, Jolley VD, Webb BL. Elemental sulfur impregnated with iron as a fertilizer source for Kentucky Bluegrass. Fifteenth International Symposium on Iron Nutrition and Interactions in Plants. June, 2010.
  • Buxton EA, Hopkins BG, Jolley VD, Webb BL, Christensen RC. Iron efficiency in Kentucky bluegrass not related to phytosiderophore release. Fifteenth International Symposium on Iron Nutrition and Interactions in Plants. June, 2010.
  • Bernards ML, Jolley VD, Buxton EA, Hopkins BG. Maize hybrids differ in their 24-hour patterns of phytosiderophore release. Fifteenth International Symposium on Iron Nutrition and Interactions in Plants. June, 2010.
  • Hopkins BG, LeMonte JJ. Spatial Variability of Soil Moisture. Soil Moisture. May, 2010.
  • Ransom CJ, Babbel L, LeMonte JJ, Hopkins BG. Reducing Phosphorus Use in the Environment: Improving Efficiency Through Use of Humic/Fulvic Acid Ligand Exchange. Life Sciences Poster Competition. March, 2010.
  • Hill MW, LeMonte JJ, Hopkins BG. Reducing Phosphorus Use in the Environment: Increasing Phosphorus Flux in Soil with Humic/Fulvic Acid Ligand Exchange. Life Sciences Poster Competition. March, 2010.
  • Ransom CJ, Babbel L, Brown T, Hopkins BG. Reducing Phosphorus Use in the Environment: Optimizing Rate and Surfactant with Genetically Engineered Crops. Life Sciences Poster Competition. March, 2010.
  • Geary BD, Benson J, Miller J, Hopkins BG, Jolley VD, Stevens MR. Pink rot of potato, influence of pH and calcium on disease development. Southern Rocky Mountain Agricultureal Conference. February, 2010.
  • Hopkins BG, Geary BD, Jolley VD, Miller JS. Nutrient and Nutrition Interactions in Potato. Idaho Potato Conference. January, 2010.
  • Geary BD, Hopkins BG, Jolley VD, Benson J, Miller J, Stevens MR. Nutrient and pathogen interactions in potato: Impacts of pH and calcium on pink rot disease development. Idaho Potato Growers Conference. January, 2010.
  • Hopkins BG. Turfgrass Nutrition. Sports Turf Managers Association Annual Conference. January, 2010.
  • Hopkins BG. Turfgrass Nutrition. Utah Green Conference. January, 2010.
  • Webb BL, Pletsch MC, Cook DA, Jolley VD, Hopkins BG. Assessing the nutrient status of low fertility soils using ion exchange resin. 11th International Symposium on Soil and Plant Analysis. 2009.
  • Webb BL, Pletsch MC, Cook DA, Jolley VD, Hopkins BG. Assessing the nutrient status of low fertility soils using ion exchange resin. 11th International Symposium on Soil and Plant Analysis. 2009.
  • Webb BL, Pletsch MC, Cook DA, Jolley VD, Hopkins BG. Comparing nutrient availability using ion exchange resin capsules and plant bioavailability under greenhouse conditions. 11th International Symposium on Soil and Plant Analysis. 2009.
  • Webb BL, Pletsch MC, Cook DA, Jolley VD, Hopkins BG. Comparing nutrient availability using ion exchange resin capsules and plant bioavailability under greenhouse conditions. 11th International Symposium on Soil and Plant Analysis. 2009.
  • Pletsch MC, Cook DA, Vickery M, Webb BL, Jolley VD, Hopkins BG. Comparing nutrient availability in low fertility soils using ion exchange resin capsules and plant bioavailability under greenhouse conditions. 8th Western Nutrient Management Conference. 2009.
  • Marcroft K, Christensen RC, Hopkins BG, Jolley VD, Webb BL. Elemental sulfur with iron: Kentucky bluegrass. 8th Western Nutrient Management Conference. 2009.
  • Buxton EA, Jolley VD, Hopkins BG, Christensen RC. Phytosiderophore exudation from the roots of iron-stresses Kentucky bluegrass. 8th Western Nutrient Management Conference. 2009.
  • LeMonte JJ, Taysom TW, Hopkins BG, Jolley VD, Webb BL. Residual soil nitrate and potato yield with polymer-coated urea. 8th Western Nutrient Management Conference. 2009.
  • Geary BD, Morton J, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. Adequate and high nitrogen represses infection severity of Colletotrichum coccodes in Russet Burbank potato roots. 93rd Annual Meeting of the Potato Association of America. 2009.
  • Geary BD, Benson J, Hopkins BG, Jolley VD, Miller JS, Stevens MR. Low pH and calcium levels increase infection severity of Pythophthora erythroseptica in Russet Norkotah potato roots. 93rd Annual Meeting of the Potato Association of America. 2009.
  • Blaisdell B, Geary BD, Morton J, Kearnes M, Johnson DA, Hopkins BG, Jolley VD. Available Nitrogen levels influence Colletotorichum coccodes infection severity of Russet Burbank potato roots. American Phytopathalogical Society Annual Meeting. 2009.
  • Kearns MJ, Geary BD, Song E, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. Infection severity of Colletotorichum coccodes in Russet Burbank potatoes with respect to environmental potassium. American Phytopathalogical Society Annual Meeting. 2009.
  • LeMonte JJ, Hopkins BG, Terry RE, Jolley VD, Webb BL, Buck JR. Nitrous oxide and ammonia emmission reductions with polymer coated urea. American Society of Agronomy. 2009.
  • Buxton EA, Jolley VD, Hopkins BG, Christensen RC, Haskell CM, Webb BL. Phytosiderophore production in response to Fe deficiency in Kentucky bluegrass. American Society of Agronomy. 2009.
  • Hopkins BG, Taysom TW, LeMonte JJ. Nutrient Management: Reducing Air and Water Quality Impacts. BYU Plant & Wildlife Sciences Department Seminar. 2009.
  • Hopkins BG. Economic Optimum for Potato Fertilization. Idaho Potato Commission Research Committee. 2009.
  • Hopkins BG, Taysom TW, LeMonte JJ. Hooked on High Fertilizer Rates? Time to Break the Habit: Farm-Environment Benefits. Idaho Potato Conference. 2009.
  • Hopkins BG, Shiffler AK, Alvarez J, Pattersen PP. Long Term Impacts of Short Rotations: Pesticides and Fertilizer. Idaho Potato Conference. 2009.
  • Hopkins BG, Taysom TW, LeMonte J. Maximizing Fertilizer Dollars and Minimizing Environmental Impacts. Idaho Potato Conference. 2009.
  • LeMonte JJ, Hopkins BG, Terry RE, Jolley VD, Webb BL, Buck JR. Nitrous oxide and ammonia emission reductions with polymer coated urea. Internation Meetings of the ASA, CSSA, and, SSSA. 2009.
  • Buxton EA, Jolley VD, Hopkins BG, Christensen RC, Haskell CM, Webb BL. Phytosiderophore production in response to Fe deficiency in Kentucky bluegrass. Internation Meetings of the ASA, CSSA, and, SSSA. 2009.
  • Hopkins BG. Soil Chemistry. LandView Systems CCA Training. 2009.
  • Hopkins BG. Comparison of Potato Production Practices: Humid vs Arid Regions of North America. Long Island New York Agricultural Forum. 2009.
  • Hopkins BG, Taysom TW, LeMonte J. Fertilizer Economics and Environmental Quality Issues. Long Island New York Agricultural Forum. 2009.
  • Hopkins BG, Taysom TW, LeMonte J. Methods of Improving Nutrient Use Efficiency: Reducing Fertilizer Costs and Environmental Impacts. Long Island New York Agricultural Forum. 2009.
  • Geary BD, Morton J, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. Adequate and high nitrogen represses infection severity of Colletotrichum coccodes in Russet Burbank potato roots. Potato Association of America 93rd Annual Meeting. 2009.
  • Geary BD, Benson J, Hopkins BG, Jolley VD, Miller JS, Stevens MR. Low pH and calcium levels increase infection severity of Pythophthora erythroseptica in Russet Norkotah potato roots. Potato Association of America 93rd Annual Meeting. 2009.
  • Hopkins BG. Increased production & reduced environmental risk with new potato fertilizers. Potato Growers of Alberta Annual Conference. 2009.
  • Madsen MD, Petersen SL, Roundy BA, Taylor AG, Hopkins BG. Innovative Use of Seed Coating Technologies for the Restoration of Soil Wettability and Perennial Grasses on Burned Semi-Arid Rangelands. Society for Range Management. 2009.
  • Hopkins BG, Peterman R, Christensen RC. Soil mechanics of water conservation. Utah Green Industry Conference - Sport Turf. 2009.
  • Hopkins BG. Variable crop & fertilizer prices result in shifting optimal fertilizer rates: potato. Western Nutrient Management Conference. 2009.
  • Woodward GE, Williams JD, Willis BD, Hopkins BG. Composting, tillage, and rotation effects on soil fertility and physical properties of cultivated soils. Agronomy - Crop - Soil Science Societies International annual meeting. a-c-sconfexcom/crops/2009am/webprogram/Paper54437html. November, 2009.
  • Madsen MD, Petersen SL, Hopkins BG, Roundy BA. Influence of water repellency on post-fire revegetation success. Agronomy - Crop - Soil Science Societies International annual meeting. a-c-sconfexcom/crops/2009am/webprogram/Paper54814html. November, 2009.
  • Hopkins BG. N & P fertilizer efficiency, crop yields, and environmental quality. Agronomy - Crop - Soil Science Societies International annual meeting. a-c-sconfexcom/crops/2009am/webprogram/Paper54524html. November, 2009.
  • Buxton EA, Jolley VD, Hopkins BG, Christensen RC, Haskell CM, Webb BL. Phytosiderophore production in response to Fe deficiency in Kentucky bluegrass. Agronomy - Crop - Soil Science Societies International annual meeting. a-c-sconfexcom/crops/2009am/webprogram/Paper54343html. November, 2009.
  • Hopkins BG. Polymer coated urea for improved aesthetics, functionality, and reduction of nutrient pollution. Agronomy - Crop - Soil Science Societies International annual meeting. a-c-sconfexcom/crops/2009am/webprogram/Paper54370html. November, 2009.
  • Beckett JT, Pletsch M, Hopkins BG, Shiffler AK, Hutchinson P, Geary BD, Horneck D, Olsen NO, Hafez S, Thornton M, et alReducing pesticides and increasing potato yields by increasing time between potato crops. Agronomy - Crop - Soil Science Societies International annual meeting. a-c-sconfexcom/crops/2009am/webprogram/Paper54354html. November, 2009.
  • LeMonte JJ, Hopkins BG, Terry RE, Jolley VD, Webb BL, Buck JR. Nitrous oxide and ammonia emission reduction with polymer coated urea. a-c-sconfexcom/crops/2009am/webprogram/Paper53059html. November, 2009.
  • Blaisdell B, Geary BD, Morton J, Kearns M, Johnson DA, Hopkins BG, Jolley VD. Available nitrogen levels influence Colletotorichum coccodes infection severity of Russet Burbank potato roots. Amer Phytopathological Society Annual Meeting. August, 2009.
  • Kearns MJ, Geary BD, Song E, Blaisdell B, Johnson DA, Hopkins BG, Jolley VD. Infection severity of Colletotorichum coccodes in Russet Burbank potatoes with respect to environmental potassium. Amer Phytopathological Society Annual Meeting. August, 2009.
  • Benson JH, Geary BD, Hopkins BG, Jolley VD. Effect of Ca on pink rot infection in potato. American Phytopathological Society Annual Meeting. August, 2009.
  • LeMonte JJ, Taysom TW, Hopkins BG, Jolley VD, Webb BL. Residual soil nitrate and potato yield with polymer coated urea. April, 2009.
  • Pletsch MC, Cook DA, Vickery M, Webb BL, Jolley VD, Hopkins BG. Comparing nutrient availability in low fertility soils using ion exchange resin capsules and plant bioavailability under greenhouse conditions. Western Nutrient Management Conference. April, 2009.
  • Marcroft L, Christensen RC, Hopkins BG, Jolley VD, Webb BL. Elemental sulfur with iron: Kentucky bluegrass. Western Nutrient Management Conference. April, 2009.
  • Haskell CM, Hopkins BG, Jolley VD, Buxton E. SPORTS FIELD MANAGEMENT: POA PRATENSIS L PHYTOSIDEROPHORE EXUDATION AT HIGH IRON AVAILABILITY. Utah Conference on Undergraduate Research. February, 2009.
  • Pletsch M, Cook DA, Webb BL, Jolley VD, Hopkins BG. Comparing Nutrient Availability in Low Fertility Soils Using Ion Exchange Resin Capsules & Plant Bioavailability Under Greenhouse Conditions. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper43928html. 2008.
  • Woodward GE, Williams JD, Willis BD, Hopkins BG. Composting Effects on Soil Fertility and Physical Properties of Low Organic Matter Soils in Southeastern Idaho. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper45682html. 2008.
  • Christensen RC, Hopkins BG, Chariton N, Jolley VD, Haskell C, Webb BL. Iron Impregnated Elemental Sulfur Application to Kentucky Bluegrass Turf: Comparison with Standard Fertilizer Methods. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper46046html. 2008.
  • Marcroft K, Hopkins BG, Chariton N, Haskell C, Jolley VD, Webb BL. Iron Impregnated Elemental Sulfur Application to Kentucky Bluegrass Turf: Rates and Application Method. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper46002html. 2008.
  • Hopkins BG. Official Methods of Soil Analysis in an Increasingly Litigious and Regulated World. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper44838html. 2008.
  • Barben SA, Hopkins BG, Jolley VD, Webb BL, Nichols BA. Phosphorus and Zinc Relationships in Chelator-Buffer Grown Russet Burbank Potato. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper43783html. 2008.
  • Nichols BA, Hopkins BG, Jolley VD, Webb BL, Greenwood B. Phosphorus, Zinc, and Manganese Interactions in Hydroponically Grown Maize. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper42632html. 2008.
  • Buxton EA, Hopkins BG, Jolley VD, Christensen RC. Phytosiderophore Exudation from the Roots of Iron Stressed Kentucky Bluegrass. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper43352html. 2008.
  • LeMonte JJ, Taysom TW, Hopkins BG, Jolley VD, Webb BL. Residual Soil Nitrate and Potato Yield with Polymer Coated Urea. ACS-CSSA-SSSA. a-c-sconfexcom/crops/2008am/webprogram/Paper46028html. 2008.
  • Hopkins BG, LeMonte JJ, Rosen CJ, Horneck D, Menasha S, Hutchinson C, Konschuh M. Review of Polymer Coated Urea Research on Potato: Yield, Tuber Quality, and Impacts on Air and Water Environmental Parameters. Agrium Researcher Roundtable. 2008.
  • Hopkins BG, Buxton EA, Haskell C, Christensen RC, Chariton N, Marcroft K. Research and Consulting with BYU Football Fields. BYU College of Life Sciences Volunteer Research Council. 2008.
  • Hopkins BG. Phosphorus Use Efficiency in Potato: Improving Yields and Crop Quality While Minimizing Water Quality Impacts. Fluid Forum. 2008.
  • Hopkins BG, Beckett T. Organic Potato Production. Idaho Potato Conference. 2008.
  • Hopkins BG, Taysom TW. Polymer Coated Fertilizers for Enhanced Nutrient Uptake Efficiency and Water Quality. Idaho Potato Conference. 2008.
  • Hopkins BG, Beckett T. Reducing Pest/Pathogen Pressure with Cultural, Soil & Water Management. Idaho Potato Conference. 2008.
  • Benson J, Geary BD, Hopkins BG, Jolley VD, Miller J. Effect of Calcium Levels on Phytophthora erythroseptica Infection in Potato Roots. Pacific Division American Phytopathological Society. 2008.
  • Barben SA, Hopkins BG, Jolley VD, Webb BL, Nichols BA. Phosphorus and zinc relationships in chelator-buffer grown resset burband potato. 2008.
  • Stark j, Blaser G, Hopkins BG. Crop Rotation Effects on Potato Response to Nitrogen. Potato Association of America. springerlinkcom/content/1099-209X. 2008.
  • Hopkins BG. Potato Production with Drastically Rising Fertilizer Prices: A Review of Nitrogen Management Options. Potato Association of America. springerlinkcom/content/1099-209X. 2008.
  • Hopkins BG. Potato Production with Drastically Rising Fertilizer Prices: A Review of Phosphorus Management Options. Potato Association of America. springerlinkcom/content/1099-209X. 2008.
  • Hopkins BG. Fertilizer Economics. Potato Conference of Alberta. 2008.
  • Hopkins BG. Increasing Nutrient Use Efficiency and Reducing Impacts on Air and Water Quality. Potato Conference of Alberta. 2008.
  • Pletsch M, Cook DA, Webb BL, Jolley VD, Hopkins BG. Comparing nutrient availability in low fertility soils using ion exchange resin capsules & plant bioavailability under greenhouse conditions. Soil Science Society of America. 2008.
  • Christensen RC, Hopkins BG, Chariton N, Jolley VD, Haskell C, Webb BL. Iron impregnated elemental sulfur application to Kentucky bluegrass turf: comparison with standard fertilization methods. Soil Science Society of America. 2008.
  • Marcroft K, Hopkins BG, Chariton N, Haskell C, Jolley VD, Webb BL. Iron impregnated elemental sulfur application to Kentucky bluegrass turf: rates and application method. Soil Science Society of America. 2008.
  • Nichols BA, Hopkins BG, Jolley VD, Webb BL, Greenwood B. Phosphorus, zinc, and manganese interactions in hydroponically grown maize. Soil Science Society of America. 2008.
  • LeMonte JJ, Taysom TW, Hopkins BG, Jolley VD, Webb BL. Residual soil nitrate and potato yield with polymer coated urea (ESN). Soil Science Society of America. 2008.
  • Hopkins BG, Beckett TJ. Cropping Systems: Soil Sustainability vs Dollars. Sustainable Agriculture Research and Education Conference. wwwsareorg/2008Conference/postershtm. 2008.
  • Beckett TJ, Hopkins BG. Cropping Frequency to Reduce Pesticide Use. Utah Conference on Undergraduate Research. wwwucurorg/. 2008.
  • Pletsch M, Cook DA, Webb BL, Jolley VD, Hopkins BG. Comparing nutrient availability in low fertility soils using ion exchange resin capsules and plant bioavailability under greenhouse conditions. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. October, 2008.
  • Christensen RC, Hopkins BG, Chariton N, Jolley VD, Haskell C, Webb BL. Iron impregnated elemental sulfur application to Kentucky bluegrass turf: Comparison with standard fertilization methods. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. October, 2008.
  • Barben SA, Hopkins BG, Jolley VD, Webb BL, Nichols BA. Phophorus and zinc relationships in chelator-buffer grown Russet Burbank potato. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. October, 2008.
  • Nichols BA, Hopkins BG, Jolley VD, Webb BL, Greenwood B. Phosphorus, zinc, and manganese interactions in hydroponically grown maize. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. October, 2008.
  • Buxton EA, Hopkins BG, Jolley VD, Christensen RC. Phytosiderophore exudation from the roots of iron stressed Kentucky bluegrass. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. October, 2008.
  • LeMonte JJ, Taysom TW, Hopkins BG, Jolley VD, Webb BL. Residual soil nitrate and potato yield with plymer-coated urea (ESN). International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. October, 2008.
  • Marcroft K, Hopkins BG, Chariton N, Haskell C, Jolley VD, Webb BL. Iron impregnated elemental sulfur application to Kentucky bluegrass turf: Rates and application method. International Meetings of the American Society of Agronomy Soil Science Society of America and Crop Science Society of America. October, 2008.
  • Barben SA, Nichols BA, Hopkins BG, Jolley VD, Webb BL. 2008 Phosphorus-Zinc-Manganese Interaction Am J Potato Res 85:2. National Meeting of the Potato Association of America,. January, 2008.
  • Hopkins BG, Jolley VD, Webb BL, Callahan RK. Boron Fertilization. National Meeting of the Potato Association of America,. January, 2008.
  • Hopkins BG, Taysom TW. New technologies in nutrient management. Crop Consultants and Farmers. 2007.
  • Stephens SC, Hopkins BG. Organic potato production. Crop Consultants and Farmers. 2007.
  • Hopkins BG, Stephens SC. Organic potato production. Crop Consultants and Farmers. 2007.
  • Hopkins BG, Stephens SC, Ellsworth JW. Remote optical sensing. Crop Consultants and Farmers. 2007.
  • Hopkins BG, Stephens SC. Fertilizer band placement in potato. Fluid Forum participants. 2007.
  • Hopkins BG. Polymerized carbon chains (humic acids) and phosphorus management in potato. Horizon Ag, Inc annual technical training. 2007.
  • Windes J, Bowen TR, Hopkins BG. Barley research update. IBC committee members and UI Faculty. 2007.
  • Cook DA, Lyon A, Webb BL, Jolley VD, Hopkins BG, Pletsch M, Allen S. Assessing the nutrient status of low fertility soils using ion resin exchange capsules. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. 2007.
  • Jolley VD, Hopkins BG, Webb BL, Callahan RK. Boron fertilization of potato in southeastern Idaho. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. 2007.
  • Barben SA, Hopkins BG, Nichols BA, Jolley VD, Webb BL. Phosphorus and manganese interactions in hydroponically grown potato CD, ASA Annual Meeting Abstracts, 2007, New Orleans, LA. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. 2007.
  • Nichols BA, Barben SA, Jolley VD, Hopkins BG, Webb BL. Phosphorus and zinc interactions in hydroponically grown Russet Burbank potato. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. 2007.
  • Hopkins BG, Taysom TW. Potato research update. IPC committee & UI Faculty. 2007.
  • Hennesey D, Hopkins BG, Ellsworth JW. Sugarbeet research update. ISGA committee and UI Faculty. 2007.
  • Hopkins BG, Jolley VD, Webb BL, Ellsworth JW, Callahan RK. Boron fertilization. National Meeting of the Potato Association of America,. 2007.
  • Barben SA, Nichols BA, Hopkins BG, Jolley VD, Webb BL. Phosphorus, zinc and manganese interactions. National Meeting of the Potato Association of America,. 2007.
  • Hopkins BG. Best management practices for potato production. Researchers & Industry. 2007.
  • Hopkins BG, Taysom TW. Polymer coated urea fertilizer. Researchers & Industry. 2007.
  • Hopkins BG. Precision Fertilization. Researchers & Industry. 2007.
  • Stephens SC, Hopkins BG. Remote sensing for identifying management zones. Researchers & Industry. wwwinfoagorg/ConferenceBuilder/cb_AtAGlanceasp?ConfID=8. 2007.
  • Bowen TR, Hopkins BG, Ellsworth JW, Cook AG. Variable rate application of nitrogen to barley. Researchers & Industry. wwwinfoagorg/ConferenceBuilder/cb_AtAGlanceasp?ConfID=8. 2007.
  • Hopkins BG, Ellsworth JW. Variable rate nitrogen application to potato. Researchers & Industry. wwwinfoagorg/ConferenceBuilder/cb_AtAGlanceasp?ConfID=8. 2007.
  • Hopkins BG, Ellsworth JW. Zonal fertilization: step-by-step case study for potatoes. Researchers & Industry. wwwinfoagorg/ConferenceBuilder/cb_AtAGlanceasp?ConfID=8. 2007.
  • Cook DA, Lyon A, Webb BL, Jolley VD, Hopkins BG, Pletsch M, Allen S. Assessing the nutrient status of low fertility soils using ion exchange resin capsules. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Hopkins BG, Jolley VD, Webb BL, Callahan RK. Boron fertilization in potato. scientific society conference participants. 2007.
  • Jolley VD, Hopkins BG, Webb BL, Callahan RK. Boron fertilization of potato in Southeastern Idaho. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Woodward GE, Williams J, Willis BD, Hopkins BG. Composting effects on intensive cultivated low organic matter soils in Southeastern Idaho. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Nichols BA, Barben SA, Hopkins BG, Jolley VD, Webb BL. Phosphorus - manganese interactions in hydroponically grown potato. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Barben SA, Hopkins BG, Nichols BA, Jolley VD, Webb BL. Phosphorus and zinc interactions in hydroponically grown Russet Burbank potato. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Barben SA, Nichols BA, Hopkins BG, Jolley VD, Webb BL. Phosphorus, zinc, and manganese interactions in hydroponically grown Russet Burbank potato. scientific society conference participants. 2007.
  • Taysom TW, Hopkins BG. Polymer coated urea as an environmentally and farmer friendly fertilizer. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Hopkins BG, Taysom TW, Stephens SC. Polymer coated urea fertilizer in potato production. scientific society conference participants. 2007.
  • Shock C, Neufeld J, Reddy S, Shock C, Jensen L, Bohl W, Hopkins BG, Miller J. The Pacific Northwest Pest Alert Network, an interactive internet site promoting stewardship. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Hopkins BG, Cook AG. Water repellent soils and polymer chemistry. scientific society conference participants. https://wwwacsmeetingsorg/2007/poster_oral/. 2007.
  • Cook DA, Lyon A, Webb BL, Jolley VD, Hopkins BG, Pletsch M, Allen S. Assessing the Nutrient Status of Low Fertility Soils Using Ion Exchange Resin Capsules. Soil Science Society of America. 2007.
  • Jolley VD, Hopkins BG, Webb BL, Callahan RK. Boron Fertilization of Potato in Southeastern Idaho. Soil Science Society of America. 2007.
  • Nichols BA, Barben SA, Jolley VD, Hopkins BG, Webb BL. Phosphorus - Manganese Interactions in Hydroponically Grown Potato. Soil Science Society of America. 2007.
  • Barben SA, Hopkins BG, Nichols BA, Jolley VD, Webb BL. Phosphorus and Zinc Interactions in Hydroponically Grown Russet Burbank Potato. Soil Science Society of America. 2007.
  • Hopkins BG, Hopkins VD, Webb BL, Ellsworth JW, Callahan RK. Boron Fertilization in Potato. Western Nutrient Management Conference. 2007.
  • Barben SA, Nichols BA, Hopkins BG, Jolley VD, Ellsworth JW, Webb BL. Phosphorus and Zinc Interactions in Potato. Western Nutrient Management Conference. 2007.
  • Hopkins BG, Jolley VD, Webb BL, Ellsworth JW, Callahan RK. Boron fertilization in potato. Western Nutrient Management Conference participants. cropandsoiloregonstateedu/wera103/2007_Proceedings/WNMC07p215Hopkinspdf. 2007.
  • Hopkins BG, Stephens SC, Shiffler AK. Optical sensing for nitrogen management. Western Nutrient Management Conference participants. cropandsoiloregonstateedu/wera103/2007_Proceedings/WNMC07p98Hopkinspdf. 2007.
  • Barben SA, Nichols BA, Hopkins BG, Jolley VD, Webb BL, Ellsworth JW. Phosphorus and zinc interactions in potato. Western Nutrient Management Conference participants. cropandsoiloregonstateedu/wera103/2007_Proceedings/WNMC07p219Barbenpdf. 2007.
  • Taysom TW, Hopkins BG, Shiffler AK, Stephens SC. Polymer coated urea in potato production. Western Nutrient Management Conference participants. cropandsoiloregonstateedu/wera103/2007_Proceedings/WNMC07p169Taysompdf. 2007.
  • Benson J, Geary BD, Hopkins BG, Jolley VD, Miller JR. Influence of pH on Infection of Phytophthora erythroseptica on Solanum tuberosum. American Phytopathological Society. July, 2007.
  • Benson J, Geary BD, Hopkins BG, Jolley VD, Miller JR. Visualization of Peronospora farinosa infection and growth in quinoa using scanning electron microscopy. American Phytopathological Society. July, 2007.
  • Hopkins BG, Jolley VD, Webb BL, Ellsworth JW, Callahan RK. Boron fertilization in potato. Western Nutrient Management Conference. March, 2007.
  • Barben SA, Nichols BA, Hopkins BG, Jolley VD, Ellsworth JW, Webb BL. Phosphorus and zinc interactions in potato. Western Nutrient Management Conference. March, 2007.
  • Hopkins BG, Jolley VD, Webb BL, Ellsworth JW, Redd SA. Potato responses to soiil and foliar boron applied a different stages of development. Annual meetings ASA. 2006.
  • Hopkins BG, Jolley VD, Webb BL, Ellsworth JW, Redd SA. Potato responses to soil and foliar boron applied at different stages of development. International Meeting of American Society of Agronomy, Soil Science Society of America and Crop Science Society of America. wwwacsmeetingsorg/2006/poster_oral/. 2006.
  • Hopkins BG, Horneck D, Pavek M, Thornton R, Newberry G, Geary BD, Ellsworth J, Olsen N. Best Management Practices for Sustainable Potato Production. 50th Annual Meeting of the Agronomy - Soil - Crop Science Society of America. 2005.
  • Hopkins BG, Horneck D, Pavek M, Thornton R, Newberry G, Geary BD, Ellsworth J, Olsen N. Best Management Practices for Sustainable Potato Production, Putting University Recommendations to the Test. 89th Annual Meeting of The Potato Association of America. 2005.
  • Jolley VD, Hopkins BG, Ellsworth JW, Webb BL, Cook AG, Bowen T. Soil tests and yield response of potato to soil and foliar applications of boron. American Society of Agronomy national meetings. 2005.
  • Hopkins BG, Geary BD, Ellsworth J, Olsen N, Horneck D, Pavek M, Thornton R, Newberry G. Best Management Practices for Potato Production. Annual Washington State Potato Conference. 2005.
  • Atkinson D, Bohl WH, Hopkins BG, Love S, Geary BD. The Effect of production Area on Tuber Bulking Rates and Dry Matter Accumulation. Idaho State Legislative. 2005.
  • Jolley VD, Hopkins BG, Ellsworth JW, Webb BL, Cook AG, Bowen T. Soil tests and yield response of potato to soil and foliar applications of boron. 2005 International Annual Meeting of Soil Science Society of America. wwwsoilsorg. October, 2005.
  • Geary BD, Hopkins BG, Bohl WH, Ellsworth J, Atkinson D. Effect of Production Area On Tuber Bulking Rates and Dry Matter Accumulation of Russet Burbank, Alturas, Ranger Russet and Shepody Potatoes. 49th Annual Meeting of the Crop Science Society of America. 2004.
  • Atkinson D, Bohl WH, Hopkins BG, Geary BD. The effect of production area on tuber bulking rates and dry matter accumulation. 88th Annual Meeting of The Potato Association of America. 2004.
  • Cook AG, Hopkins BG, Jolley VD, Mills CI, Webb BL. Unraveling the mystery of the P-Zn interaction in potatoes using buffered nutrient solution. ASA Annual Meeting. 2004.
  • Cook AG, Hopkins BG, Jolley VD, Mills CI, Webb BL. Unraveling the mystery of the P-Zn interaction in potatoes using buffered nutrient solution. 2004.
  • Hopkins BG, Jolley VD, Whitney DA, Lamond RE. Zinc deficiency response of corn, wheat and sorghum. Proceedings of North Central Extension-Industry Soil Fertility Conference. 2002.
Bryan Hopkins