'''Cropping history''' is - according to the [[USDA]] terminology - ''"a record of the crop that was on the [[land]] during each of the 3 years preceding the current inventory year. These data are recorded on cropland, pastureland, and CRP land cover/uses only. Data are used to determine some of the values used to calculate water and wind erosion rates."<ref>[http://www.nrcs.usda.gov/technical/NRI/1997/summary_report/glossary.html List of USDA terminology]List of USDA terminology</ref>''