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Factor for estimating nitrogen contribution of cowpea as a cover crop

Author:
Aguiar, J.L., Williams, W.A., Graves, W.L., McGiffen, M. Jr., Samons, J.V., Ehlers, J.D., Matthews, W.C. Jr.
Source:
Journal of agronomy and crop science 2001 v.186 no.3 pp. 145-149
ISSN:
0931-2250
Subject:
Vigna unguiculata, estimation, cover crops, nitrogen fixation, nutrient availability, nitrogen content, biomass, equations, California
Agid:
1978371