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Article
Seasonal and Rotational Influences on Corn Nitrogen Fertilization in Southwest Iowa
Farm Progress Reports
  • John Sawyer, Iowa State University
  • Daniel Barker, Iowa State University
Number
RFR-A1667
Publication Year
2017
Farm
Armstrong Research and Demonstration Farm
Department
Agronomy
Abstract

This project was designed to study the nitrogen (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.

DOI
https://doi.org/10.31274/farmprogressreports-180814-1589
Citation Information
John Sawyer and Daniel Barker. "Seasonal and Rotational Influences on Corn Nitrogen Fertilization in Southwest Iowa" (2017)
Available at: http://works.bepress.com/john-sawyer/303/