Farm
Northwest and Allee Research and Demonstration Farm
Publication Date
2006
Abstract
We are continuing to look for technology that will enable us to manage nitrogen (N) fertilizer efficiently. Past research has studied the effect of nitrification inhibitors, sulfur coating, and time of application on N-use efficiency. Recently a controlled-release polymer-coated urea material (ESN) has become available. Evaluation of the material in terms of efficiency of use on corn is necessary to help crop producers decide if the extra cost of ESN can be recovered either by applying less material or by producing higher yields at current N rates. The objective of this study is to evaluate the effect of spring applications of ESN and urea on a corn-soybean cropping system.
Copyright Owner
Iowa State University
Copyright Date
2006
Language
en
File Format
application/pdf
Recommended Citation
Killorn, Randy; Gonzalez, Marianela; Moore, Jeffrey; and Haden, David, "Effect of Controlled-Release N Fertilizer on Corn Grain Yield" (2006). Iowa State Research Farm Progress Reports. 1137.
https://lib.dr.iastate.edu/farms_reports/1137
