Abstract
This project is designed to study the nitrogen (N) fertilization needs in continuous corn (C-C) and corn rotated with soybeans(C-S) as influenced by location and climate. Multiple rates of N fertilizer are spring applied, with the intent to measure the yield response to N fertilization within each rotation on a yearly basis at multiple sites across Iowa. This allows the determination of N requirements for each rotation practice, differences that exist between the two rotations, responses to N applied across different soils and climatic conditions, and evaluation of tools used to adjust the N application.
Keywords: Agronomy
How to Cite:
Sawyer, J. E. & Barker, D. W., (2006) “Seasonal and Rotational Influences on Corn Nitrogen Requirements”, Iowa State University Research and Demonstration Farms Progress Reports 2005(1).
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