What is the difference between crop water use and evapotranspiration (ET)?
The term “ET” is often used interchangeably with crop water use. Technically, one might argue that crop water use is synonymous with transpiration and evapotranspiration is something more than crop water use, because of the added effect of evaporation. However, as previously noted, it is extremely difficult to measure evaporation separately from transpiration and, additionally, the amount of evaporation directly affects transpiration.
