Agricultural Engineering/Agronomy, Central Iowa, and BioCentury Research Farms

Comparison of ESN and Aqua Ammonia as Sources of Fall- and Spring-Applied N Fertilizer for Corn Production

Authors: Randy Killorn (Iowa State University) , Jeffrey Moore (Iowa State University)

  • Comparison of ESN and Aqua Ammonia as Sources of Fall- and Spring-Applied N Fertilizer for Corn Production

    Agricultural Engineering/Agronomy, Central Iowa, and BioCentury Research Farms

    Comparison of ESN and Aqua Ammonia as Sources of Fall- and Spring-Applied N Fertilizer for Corn Production

    Authors: ,

Abstract

We continue to search for methods and products that will increase nitrogen (N) use efficiency in corn production. Several years ago a controlled release N fertilizer was developed. The fertilizer is urea coated with a substance that controls the rate of N release based on the temperature and amount of soil water. It is currently sold in Iowa as ESN. The objective of this study was to compare the response of corn to addition of fall and spring-applied ESN and aqua ammonia (AA) at different N rates.

Keywords: Agronomy

How to Cite:

Killorn, R. & Moore, J., (2008) “Comparison of ESN and Aqua Ammonia as Sources of Fall- and Spring-Applied N Fertilizer for Corn Production”, Iowa State University Research and Demonstration Farms Progress Reports 2007(1).

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Published on
01 Jan 2008
Peer Reviewed