Virginia Agricultural Experiment StationGroover, Gordon E.Kenyon, David E.Kramer, Randall A.2015-08-072015-08-071989http://hdl.handle.net/10919/56323vi, 57 pagesapplication/pdfen-USVirginia Agricultural Experiment Station materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to the Virginia Agricultural Experiment Station and Virginia Tech.S123 .E22Grain trade -- VirginiaField crops -- Economic aspects -- VirginiaExtension publication21892887