NASHUA, Iowa — Iowa State University Extension agronomist John Sawyer wants farmers to use the Corn Nitrogen Rate Calculator to fine-tune their nitrogen management. The calculator is a web tool that ...

The amount of nitrogen fertilizer needed to maximize the profitability of corn production in the Midwest has been increasing ...

Roughly 25% to 50% of the total commercial nitrogen applied to fields across the state occurs in the fall. Waiting for cooler ...

Corn requires a lot of nitrogen, approximately 1.2 pounds of it for every bushel of corn produced. That means that a 200-bushels-per-acre harvest will require 240 pounds of nitrogen per acre. Most of ...

New University of Minnesota research, recently published in the Soil Science Society of America Journal, significantly improves a tool that farmers can use to guide nitrogen application decisions. Too ...

Revised Document Prepared by: A.L. Shober, K.L. Gartley, and J.T. Sims Department of Plant and Soil Sciences, University of Delaware Unlike other nutrients, such as potassium or phosphorus, the ...

A tractor is used to apply 32 percent liquid urea ammonium nitrate by dripping it onto the base of young corn plants in Northeast Iowa as part of a nitrate strip trial done by the Iowa Soybean ...

ROCHESTER, Minn. — Nitrogen is just one of many nutrients, but its criticality to corn crop success put it at the center of the Nitrogen: Minnesota's Grand Challenge and Compelling Opportunity ...

Researchers are one step closer to understanding how some plants survive without nitrogen. Their work could eventually reduce ...

A farmer applies nitrogen fertilizer to a corn field in Boone County in June 2024. Photo by Alex Schaffer/Iowa Soybean Association. AMES, Iowa – The amount of nitrogen fertilizer needed to maximize ...

AMES, Iowa – The amount of nitrogen fertilizer needed to maximize the profitability of corn production in the Midwest has been increasing by about 1.2% per year for the past three decades, according ...