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Tom Bruulsema

Curriculum Vitae: download
Color Photo: download

18 Maplewood Dr
Guelph, ON N1G 1L8

Tom Bruulsema joined the Potash & Phosphate Institute in 1994, which in 2007 became the International Plant Nutrition Institute (IPNI). Based in Guelph, Ontario, Canada, Tom is Vice President, Americas & Research for IPNI. He has played key roles in the development of the 4R Nutrient Stewardship concept, including the co-editing of the IPNI 4R Plant Nutrition Manual.

Dr. Bruulsema has been recognized as a Fellow of the American Society of Agronomy, the Soil Science Society of America, and the Canadian Society of Agronomy. He is a Certified Crop Adviser and has served a number of leadership roles in the International Certified Crop Adviser Program.

He was previously a research associate at the University of Minnesota (1994), and an agronomist with the Mennonite Central Committee in Bangladesh (1986-1990).


B.S. 1983 University of Guelph (Agriculture)
M.S. 1985 University of Guelph (Crop Science)
Ph.D. 1994 Cornell University (Soil Science)

Awards & Recognition

Agronomic Industry Award (2014) American Society of Agronomy

Fellow (2012) Canadian Society of Agronomy

Fellow (2008) Soil Science Society of America
Fellow (2007) American Society of Agronomy

Professional Service

2005-2011 President-elect, President, past-President, Canadian Society of Agronomy
2007-2010 Director, American Society of Agronomy Board (ICCA Representative)
2005-2007 Chair, Division S-8, Soil Science Society of America
2001-2004 Chair, International Certified Crop Adviser Board
2000-2006 Chair, Agronomy-Environment Committee, Canadian Fertilizer Institute
1999-2003 President, NE Branch, American Society of Agronomy & Soil Science Society of America
1999-2000 Chair, Ontario Certified Crop Adviser Board
1995-2005 Chair, Agronomy Committee, Ontario Agri Business Association
1995-1998 Chair, Ontario Certified Crop Adviser Exam Committee

Selected Publications

Jarvie, Helen P, LT Johnson, AN Sharpley, DR Smith, DB Baker, TW Bruulsema, R Confesor. 2016. Increased Soluble Phosphorus Loads to Lake Erie: Unintended Consequences of Conservation Practices? Journal of Environmental Quality doi:10.2134/jeq2016.07.0248

Powers SM, Bruulsema TW, Burt TP, Chan N, Elser JJ, Haygarth PM, Howden NJK, Jarvie HP, Lyu Y, Peterson HM, Sharpley AN, Shen J, Worrall J, Zhang F. 2016. Long-term accumulation and transport of anthropogenic phosphorus in three river basins. Nature Geoscience. DOI: 10.1038/ngeo2693.

Norton R, Bruulsema T, Roberts T, Snyder C. 2015 Crop nutrient performance indicators. Agricultural Science, 27 (2), 33-38.

Roy, AK, C Wagner-Riddle, B Deen, J Lauzon, and T Bruulsema. 2014. Nitrogen application rate, timing and history effects on nitrous oxide emissions from corn (Zea mays L.). Can. J. Soil Sci. 94: 563-573

Fixen, PE and TW Bruulsema. 2014. Potato management challenges created by phosphorus chemistry and plant roots. American Journal of Potato Research 91 (2), 121-131. DOI 10.1007/s12230-014-9374-z.

Bittman, S, JR Brook, A Bleeker, TW Bruulsema. 2014. Air Quality, Health Effects and Management of Ammonia Emissions from Fertilizers. Air Quality Management, 261-277. Springer, Netherlands.

Bruulsema, TW, P Heffer, RM Welch, I Cakmak, K Moran, eds. 2012. Fertilizing crops to improve human health: a scientific review. IPNI, Norcross, GA, USA; IFA, Paris, France. ISBN: 978-0-9834988-0-3.

IPNI. 2012. 4R Plant Nutrition: A manual for improving the management of plant nutrition. Bruulsema, TW, PE Fixen and GD Sulewski, eds. International Plant Nutrition Institute, Norcross, GA, USA.

Robertson, GP, TW Bruulsema, RJ Gehl, D Kanter, DL Mauzerall, CA Rotz, CO Williams. 2012. Nitrogen–climate interactions in US agriculture. Biogeochemistry DOI 10.1007/s10533-012-9802-4.

Bruulsema, TW, RW Mullen, IP O’Halloran and DD Warncke. 2011. Agricultural phosphorus balance trends in Ontario, Michigan and Ohio. Can J Soil Sci 91:437-442.

Sheppard, SC, S Bittman, and TW Bruulsema. 2010. Monthly ammonia emissions from fertilizers in 12 Canadian ecoregions. Can J Soil Sci 90:113-127.

Snyder, CS, TW Bruulsema, TL Jensen and PE Fixen. 2009. Review of greenhouse gas emissions from crop production systems and fertilizer management effects. Agriculture, Ecosystems and Environment 133:247–266.

Vyn, TJ, Xinhua Yin, TW Bruulsema, C-JC Jackson, I Rajcan, and SM Brouder. 2002. Potassium fertilization effects on isoflavone concentrations in soybean [Glycine max (L.) Merr.]. J Agric Food Chem 2002, 50, 3501-3506.

Bruulsema, TW, and JM Duxbury. 1996. Simultaneous measurement of soil microbial nitrogen, carbon and carbon isotope ratio. Soil Sci Soc Am J 60(6): 1787-1791.