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Extension Number

PM 2026

Description

Determining the proper nitrogen (N) fertilization rate is important for the economic viability of corn production. A desire for high yields, fueled by low fertilizer N costs, led producers to apply rates that ensured adequate N rather than risk costly yield losses due to a shortage of N. Due to water quality concerns and recently high N fertilizer prices, management strategies are needed that can improve the efficiency and profitability of N use. With N application rates based on economic return instead of maximizing productivity, producers want to confirm that rate decisions are working adequately. Also, if unexpected N losses occur, help is needed with decisions for rescue N applications.

Publication Date:

4-2011

Publisher:

Iowa State University Extension and Outreach

City:

Ames, IA

Keywords:

Agronomy

Disciplines:

Agricultural Science | Agriculture | Agronomy and Crop Sciences

Disclaimer

Iowa State University Extension and Outreach publications in Digital Repository @ Iowa State University are made available for historical purposes only. The information contained in these publications may be out of date. For current publications and information from Iowa State University Extension and Outreach, please visit http://www.extension.iastate.edu.

Sensing Nitrogen Stress in Corn

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