McNay Memorial Research and Demonstration Farm

Seasonal and Rotational Influences on Corn Nitrogen Fertilization in South Central Iowa

Authors: John E. Sawyer (Iowa State University) , Daniel Barker (Iowa State University)

  • Seasonal and Rotational Influences on Corn Nitrogen Fertilization in South Central Iowa

    McNay Memorial Research and Demonstration Farm

    Seasonal and Rotational Influences on Corn Nitrogen Fertilization in South Central Iowa

    Authors: ,

Abstract

This project was designed to study the N fertilization needs in continuous corn (CC) and corn rotated with soybean (CS) as influenced by location and climate. Multiple rates of fertilizer N were spring applied, with the intent to measure yield response to N within each rotation on a yearly basis for multiple years at multiple sites across Iowa. This will allow determination of N requirements for each rotation, differences that exist between the two rotations, responses to applied N across different soils and climatic conditions, and evaluation of tools used to adjust N application.

How to Cite:

Sawyer, J. E. & Barker, D., (2017) “Seasonal and Rotational Influences on Corn Nitrogen Fertilization in South Central Iowa”, Iowa State University Research and Demonstration Farms Progress Reports 2016(1).

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Published on
01 Jan 2017
Peer Reviewed