HydrionisGlobal Water Intelligence
Agriculture & irrigation

Irrigation water requirement

Estimate crop irrigation need from reference evapotranspiration, crop coefficient, rainfall and system efficiency.

Inputs

Surface 50–60%; sprinkler 70–80%; drip 85–95%.

Result
Crop water requirement
5.75mm/day
Net irrigation requirement
4.75mm/day
Gross irrigation requirement
6.33mm/day
Volume for the area
633.3m³/day
Over a 100-day season
63.3Ml

Method

Crop water requirement = reference evapotranspiration × crop coefficient. Net irrigation requirement = crop water requirement − effective rainfall. Gross requirement = net ÷ irrigation efficiency.

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