Focused on Results
Driven by Science
Guided by 4R Nutrient Stewardship

About The Foundation for Agronomic Research (FAR)

FAR is a non-profit research and education foundation created to improve the research, education, economic vigor and sustainability of agriculture.

4R Research Fund

The Fertilizer Institute, with cooperating partners, established the 4R Research Fund in 2013 to address knowledge gaps in nutrient management. Since then, the industry has invested $8.4 million while leveraging $8.8 million in other funding to support 4R research.

U.S. Funded Projects

  • Purdue University
  • Southern Illinois University
  • University of Toledo
  • Iowa State University
  • USDA United States Department of Agriculture
  • Kansas State University 
  • University of Illinois
  • Utah State University
  • Virginia Tech
  • University of Arkansas


  • UC Davis University of California
  • University of Arizona


Iron in Crop Production

Iron in Crop Production

Highlights: Iron in agricultural soils has many direct and indirect effects on crop production. The availability of iron in soil and the efficacy of iron applied to crops can be framed by 4R Nutrient Stewardship principles. Management strategies to alleviate iron...

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