Campus Units

Agronomy

Document Type

Conference Proceeding

Publication Version

Published Version

Publication Date

2013

Journal or Book Title

Proceedings of the 43rd North Central Extension-Industry Soil Fertility Conference

Volume

29

First Page

60

Last Page

67

Conference Title

43rd North Central Extension-Industry Soil Fertility Conference

Conference Date

November 20-21, 2013

City

Des Moines, IA

Abstract

Nitrogen application to corn is a large determinant for high yield, and rate has important implications for economic profitability and off-field movement of nitrate-N. Nitrogen rate recommendation systems have varied over time. A popular system was yield-goal based, with grain yield multiplied by a per-bushel factor and then rate adjusted for previous crop and other N inputs. Modifications of this system are still used today in some states. Seasonal (site-year) variability in economic optimum N rate (EONR) has been widely recognized. However, to date there has been no recommendation system that provides a solution to accurately predict EONR.

Comments

This is a proceeding from 43rd North Central Extension-Industry Soil Fertility Conference 29 (2013): 60. Posted with permission.

Copyright Owner

International Plant Nutrition Institute

Language

en

File Format

application/pdf

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Article Location

 
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