Question

Water requirement is equal to

A IR + S Correct Answer Incorrect Answer
B ER + S Correct Answer Incorrect Answer
C IR + ER + S Correct Answer Incorrect Answer
D ER + S + T Correct Answer Incorrect Answer

Solution

Water requirement of a crop is equal to the irrigation + effective rainfall + Profile water use i.e., difference in soil moisture in the crop root zone at the beginning and end of the crop. 

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