'''Cropping history''' is 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. | '''Cropping history''' is 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. |