This pane is on the Farm Land Use Properties dialog box.
EVAPORATION_IRRIGATION_FRACTION_SUM_ONE_CORRECTION causes the FMP package to check if FEI needs to be corrected so FEI + FTR = 1 when FEI + FTR > 1
•FEI = EVAPORATION_IRRIGATION_FRACTION
•FTR = TRANSPIRATION_FRACTION
If EVAPORATION_IRRIGATION_FRACTION_SUM_ONE_CORRECTION is not specified, the default is not to check nor correct FEI + FTR > 1 which is ok since it is possible to have highly evaporative irrigation (like sprinklers)