Estimates of agricultural cropping-practices in counties in the conterminous United States as reported in the 1987 Census of Agriculture
This coverage contains estimates of agricultural cropping-practices in counties 
in the conterminous United States as reported in the 1987 Census of Agriculture (U.S. Department 
of Commerce, 1989a). Agricultural cropping-practice data are reported as either acres, or as a 
percentage of county area. Agricultural …