Research on Nitrogen Indices in Wisconsin and the Midwest

Date
1990-12-19
Authors
Bundy, Larry
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Abstract

Development of reliable nitrogen (N) availability indices has long been an important goal of agricultural scientists. However, progress in this area has been slowed by problems with calibrating certain N indices with crop response and by the absence of strong incentives to develop and implement N tests. Nitrogen test development for humid regions of the Midwest and eastern U.S. is more difficult due to climatic conditions in these areas which can cause relatively rapid changes in the amounts of plant-available N in the crop root zone.

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