Armstrong Memorial Research and Demonstration Farm

Nitrogen Fertilization of Corn Grown with a Cover Crop

Authors: John E. Sawyer (Iowa State University) , Jose L. Pantoja (Iowa State University) , Daniel W. Barker (Iowa State University)

Abstract

Objectives of this project were to study corn nitrogen (N) fertilization requirement and corn-soybean yield response when grown in a cover crop system. Multiple rates of N fertilizer are applied, with measurement of corn yield response to applied N and soybean yield with and without a fall planted winter rye cover crop. The study is being conducted at several research farms, with the intent for study across multiple years to allow comparison of with and without a cover crop system across varying soil and climatic conditions.

Keywords: Agronomy, RFR A9075

How to Cite: Sawyer, J. E. , Pantoja, J. L. & Barker, D. W. (2010) “Nitrogen Fertilization of Corn Grown with a Cover Crop”, Iowa State University Research and Demonstration Farms Progress Reports. 2009(1).