Good attempt. But Crop ET ...

Good attempt. But Crop ET varies from crop to crop and different Phenological stages of the crop .Abiotic factors like temperature, wind and radiation plays a crucial role in Crop ET. My suggestion may be to work out the crop coefficients at Phenological stages of the main crops in your region. it will be useful research crop ET contribution.

Thanks 

K.K.Nathan, Principal Scientist, IARI, New Delhi India