Gate 2020 question with solution
1) He data for an agricultural field for a specific month are given below:
Pan Evaporation = 100 mm
Effective Rainfall = 20 mm (after deducting losses due to runoff and deep percolation)
Crop Coefficient = 0.4
Irrigation Efficiency = 0.5
The amount of irrigation water (in mm) to be applied to the field in that month, is
Solution : Water required by crop = 100 × 0.4 mm
= 40 mm
Effective rainfall = 20 mm
Additional water requried = 20 mm
Amount of water required after accounting irrigation efficiency =
20/0.5 =40 mm.
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Gate 2020 question with solution
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