In the first five years of NREC hundreds of nitrogen rate trials have been conducted across Illinois. This research has resulted in a new publication: “Using the Maximum Return to Nitrogen (MRTN) System in Illinois”.
This guide explains the terminology and the process for determining the Maximum Return to Nitrogen
(MRTN), which is the N rate that maximizes the dollar return to N. It also addresses commonly asked
questions and dispel myths about nitrogen use, all in an effort to support sound agronomic principles, and
to increase economic return while respecting our environment.
The guide can be downloaded here or you can request printed copies by filling out this short form.