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Federal
Total tonnage of commodites carried on commercial waterways by traffic type 65 recent views
Department of Defense —
Total tonnage and tonnage by traffic type (in short tons of 2000 pounds) of commodites carried on commercial waterways, where the origin and destination of the cargo... -
Federal
Thirteen-year Stover Harvest and Tillage Effects on Corn Agroecosystem Sustainability in Iowa
Department of Agriculture —
This dataset includes soil health, crop biomass, and crop yield data for a 13-year corn stover harvest trial in central Iowa. Following the release in 2005 of the...