Campus Units

Agronomy

Document Type

Conference Proceeding

Publication Version

Published Version

Publication Date

2012

Journal or Book Title

Proceedings of the 2012 Wisconsin Crop Management Conference

Volume

51

First Page

65

Last Page

74

Conference Title

2012 Wisconsin Crop Management Conference

Conference Date

January 10-12, 2012

City

Madison, Wisconsin

Abstract

Precision agriculture technologies are an integral part of many crop production operations. However, implementation for N application has lagged, primarily due to lack of a viable system for variable N rate decisions. Active canopy sensors have been developed as a tool to determine plant N stress deficiency and provide an on-the-go decision for implementing variable rate. There are two general approaches. One is to conduct canopy sensing each year, with a reduced N rate applied preplant, at planting, or early sidedress and then sensing at mid-vegetative growth to determine additional application need. A second is to conduct sensing only if conditions result in N loss from the primary N application, or other factors change expected crop requirements. Both approaches could address variable N fertilization and seasonal conditions.

Comments

This is a proceeding from Wisconsin Crop Management Conference 51 (2012): 65. Posted with permission.

Copyright Owner

The Authors

Language

en

File Format

application/pdf

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Article Location

 
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