Step 2. Determine your crop coefficient (Kc)

As stated earlier, the crop coefficient is dependent on the crop and stage of growth.
It is a form of multiplier to calculate how much water a crop needs at each point of the season.

There are numerous sources of Kc available – online, industry agriculture bodies, etc.

Kc data is based on numerous years of crop research, but it has to be adapted to the local variety and conditions.

An example of summary Kc information provided by the FAO

An example of summary Kc information provided by the FAO

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