We have compared hairy vetch, big flower vetch, rye, and corn residue as winter cover treatments in no-tillage corn production since 1977. One of the objectives of this research is to determine the economic feasibility of using a legume cover crop to supply a portion of the nitrogen needs of a corn crop. Results reported here are based on corn yields obtained during 1977 through 1981 at Lexington and 1980 through 1985 at Princeton.
Frye, Wilbur, "Economics of Legume Cover Crops" (1986). Soil Science News and Views. 46.