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Research ArticleResearch

Economic analysis of the effects of winter cover crops on no-tillage corn yield response to applied nitrogen

Roland K. Roberts, James A. Larson, Donald D. Tyler, Bob N. Duck and Kim D. Dillivan
Journal of Soil and Water Conservation July 1998, 53 (3) 280-284;
Roland K. Roberts
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James A. Larson
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Donald D. Tyler
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Bob N. Duck
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Kim D. Dillivan
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ABSTRACT:

The objective was to evaluate how cover crops affect profit-maximizing nitrogen rates, corn yields, and net revenues for no tillage corn production in West Tennessee. Yield data for various applied nitrogen rates during 1986 through 1995 were used to estimate corn yield response functions for hairy vetch, crimson clover, winter wheat, and no cover alternatives. Profit-maximizing nitrogen rates, yields, costs of production, and net revenues were then calculated. The vetch cover provided the highest profit-maximizing corn yields and net revenues and the lowest profit-maximizing applied nitrogen rates. The opposite was true for wheat. Clover provided lower net revenues than the no cover alternative.

Footnotes

  • R.K. Roberts is professor and J. A. Larson is associate professor of Agricultural Economics and Rural Sociology, University of Tennessee, Knoxville; D.D. Tyler is professor of Plant and Soil Science, University of Tennessee, West Tennessee Experiment Station, Jackson; B.N. Duck is professor of Plant and Soil Science, University of Tennessee, Martin; K.D. Dillivan is graduate research assistant in Agricultural Economics and Rural Sociology, University of Tennessee, Knoxville.

  • Copyright 1998 by the Soil and Water Conservation Society

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Journal of Soil and Water Conservation: 53 (3)
Journal of Soil and Water Conservation
Vol. 53, Issue 3
Third Quarter 1998
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Economic analysis of the effects of winter cover crops on no-tillage corn yield response to applied nitrogen
Roland K. Roberts, James A. Larson, Donald D. Tyler, Bob N. Duck, Kim D. Dillivan
Journal of Soil and Water Conservation Jul 1998, 53 (3) 280-284;

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Economic analysis of the effects of winter cover crops on no-tillage corn yield response to applied nitrogen
Roland K. Roberts, James A. Larson, Donald D. Tyler, Bob N. Duck, Kim D. Dillivan
Journal of Soil and Water Conservation Jul 1998, 53 (3) 280-284;
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