ABSTRACT:
This study evaluated how winter cover crops with various applied nitrogen rates affect net revenue and risk from no-tillage corn production. Net revenues for legume covers with no applied fertilizer nitrogen were risk inefficient. Hairy vetch with 168 kg/ha of applied nitrogen maximizes mean net revenue and is a risk efficient system for risk averse farmers. Risk averse farmers may choose to adopt a hairy vetch cover to improve net revenue, but may not reduce commercial nitrogen use. Winter wheat covers were risk inefficient for all nitrogen fertilization levels.
Footnotes
J.A. Larson is associate professor and R.K Roberts is 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. S.P. Slinsky is research assistant in the Agricultural Policy Analysis Center, The University of Tennessee, Knoxville.
- Copyright 1998 by the Soil and Water Conservation Society
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