United States Department of Agriculture, Soil Conservation Service ; in cooperation with the University of Florida, Institute of Food and Agricultural Sciences, Agricultural Experiment Stations, and Soil Science Department; and the Florida Department of Agriculture and Consumer Services
United States Department of Agriculture, Soil Conservation Service ; in cooperation with Ohio Department of Natural Resources, Division of Water and Soil Conservation, Ohio Agricultural Research and Development Center; and Ohio Cooperative Extension Service
United States Department of Agriculture, Soil Conservation Service ; in cooperation with North Dakota Agricultural Experiment Station, North Dakota Cooperative Extension Service, and North Dakota State Soil Conservation Committee
United States Department of Agriculture, Soil Conservation Service ; in cooperation with Kentucky Natural Resources and Environmental Protection Cabinet and Kentucky Agricultural Experiment Station
United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of Agriculture, Forest Service and the Arkansas Agricultural Experiment Station