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Article
Seasonal and Rotational Influences on Corn Nitrogen Fertilization in Northeast Iowa
Farm Progress Reports
  • John Sawyer, Iowa State University
  • Daniell Barker, Iowa State University
Number
RFR-A1668
Publication Year
2017
Farm
Northeast Research and Demonstration Farm
Department
Agronomy
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.

DOI
https://doi.org/10.31274/farmprogressreports-180814-1644
Citation Information
John Sawyer and Daniell Barker. "Seasonal and Rotational Influences on Corn Nitrogen Fertilization in Northeast Iowa" (2017)
Available at: http://works.bepress.com/john-sawyer/300/