Fertilizer Information
A recent change to our Extension Store has resulted in many of our publications having broken links. Our recommendation for now is to go the updated Store (Home - Extension Store) and search on the title (or number) of the document. Our apologies for this problem.
Soil Fertility Extension Resources
- Look through Clain's presentations
- Developing Fertilizer Recommendations for Agriculture (MT200703AG)
- Interpretation of Soil Test Reports for Agriculture (MT200702AG)
- Enhanced Efficiency Fertilizers (EB0188)- HTML temporarily unavailable
- Fertilizer Guidelines for MT crops (EB0161)
- Soil Scoop: Fertilizer Rate Calculations
- Fertilizer Facts - links to published Fertilizer Fact sheets
Determining Fertilizer Rates
- Enhanced Efficiency N & P fertilizers - recorded seminar by Dr. Bryan Hopkins, Brigham Young University
- 4R Plant Nutrition: A Manual for Improving the Management of Plant Nutrition - an International Plant Nutrition Institute publication in support of 4R Nutrient Stewardship
- Nutri-Facts - fact sheets written by scientific staff of the International Plant Nutrition Institute (IPNI) that focus on essential plant nutrients and their use
- Nutrient Stewardship - a website to enhance understanding, adoption and promotion of 4R nutrient stewardship
- Orchard Nutrition - guide from the Western Agricultural Research Center in Corvallis, MT
Calculators
- Fertilizer Calculator - generate fertilizer recommendations using soil test results, from the Southern
Agricultural Research Center
- Small Grains Nitrogen Economic Calculator - determine fertilizer application rates for winter wheat, spring wheat, and spring barley
- Seed-Placed Fertilizer Decision Aid - downloadable Excel file from website, by SDSU and the International Plant Nutrition Institute
- Care with fertilizer and seed placement by the International Plant Nutrition Institute
Fertilizer Economics
- Small Grains Nitrogen Economic Calculator - determine fertilizer application rates for winter wheat, spring wheat, and spring barley