What does the irrigation efficiency show?
The number represents gross irrigation divided by crop water requirements. This describes how much of the crop requirements are supplied by irrigation. Therefore, the lower the number the less irrigation water-dependent is your production. However, depending on precipitation this number can either be good or bad. If you don’t irrigate sufficiently and precipitation is also not enough you might have a big water yield gap.
There are other definitions that describe irrigation efficiency and are currently being explored.
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