Tillage Practices in the Conterminous United States, 1989-2004--Datasets Aggregated by Watershed; tillage_lu92e
This dataset is an aggregation of county-level tillage practices to the 8-digit hydrologic unit watershed. 
The original county-level data were collected by the Conservation Technology Information Center (CTIC) 
and is a proprietary dataset. The CTIC collects tillage data by conducting surveys about tillage systems …