Finding the Maximum Return To N and Most Profitable N Rate

A Regional (Corn Belt) Approach to Nitrogen Rate Guidelines

This web site provides a process to calculate economic return to N application with different nitrogen and corn prices and to find profitable N rates directly from recent N rate research data. The method used follows a regional approach for determining corn N rate guidelines that is implemented in several Corn Belt states.


Choose how you want to calculate N rates, using one set of prices or using mulitple prices.

In association with these Universities

Iowa State Extension
Purdue University
University of Minnesota Extesion
Michigan State University Extension
University of Illinois at Champaign-Urbana
University of Wisconsin-Madison
Ohio State University