by Michael Mulvaney | Apr 1, 2016
Dr. Michael J. Mulvaney, Cropping Systems Specialist, WFREC, Jay, FL Environmentally Smart Nitrogen (ESN) is a polymer-coated urea formulated as 44-0-0. The reason it contains 2% less nitrogen (N) than urea (which is 46-0-0) is due to the weight of the polymer...
