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Federal
County-Level Estimates of Nitrogen and Phosphorus from Commercial Fertilizer for the Conterminous United States, 1987-2012
Department of the Interior —
This data set contains county-level estimates of nitrogen and phosphorus from fertilizer, for both farm and nonfarm uses, for the conterminous United States, for 1987... -
Federal
Grids of Agricultural Pesticide Use in the Conterminous United States, 1997
Department of the Interior —
This spatial dataset consists of 219 1-kilometer (km) resolution grids depicting estimated agricultural use of 219 pesticides in 1997 for the conterminous United... -
Federal
Grids of Agricultural Pesticide Use in the Conterminous United States, 1992
Department of the Interior —
This spatial dataset consists of 199 1-kilometer (km) resolution grids depicting estimated agricultural use of 199 pesticides in 1992 for the conterminous United...