Campus Units

Agronomy

Document Type

Article

Publication Date

11-1999

Conference Title

19th Annual Crop Management Short Course

Conference Date

November 22, 1999

City

St. Paul, MN, United States

Abstract

Soil testing is the key component for determining the need for phosphorus (P) fertilization. Also, if fertilization is required, test results guide the rate of application recommended to optimize production. Through extensive laboratory, greenhouse, and field research studies, soil tests are calibrated against the expectation of response to applied P. That is, the research determines both the relative index of P availability to the crop being grown and an indication of the probability and magnitude of yield increase one should expect when P is applied – thus providing the interpretation of test results. This research also determines which test is best at predicting available P and crop response to P application.

Copyright Owner

The authors

Language

en

File Format

application/pdf

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Article Location

 
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