This pane is on the Farm Land Use Properties dialog box.
Given that:
•CF = CONSUMPTIVE_USE
•Kc = CROP_COEFFICIENT
•ETref = REFERENCE_ET
If the Potential Consumptive Use is CU = CF + Kc*ETref = 0,
then the crop is assumed to be scraped clean earth with no evapotranspiration (CU = 0).
This occurs when CF and Kc are set to zero indicating there is no potential consumption.
If it is desired to convert CU = 0 to Fallow/Bare soil, then it is necessary to specify the keyword ZERO_CONSUMPTIVE_USE_BECOMES_BARE_SOIL. With this keyword, if CF and Kc are set to zero, then CU = REFERENCE_ET_TO_BARE * ETref or CU = POTENTIAL_EVAPORATION_BARE and only groundwater evaporation is allowed.