railway RRB JE (CBT I + CBT II) Mock Test 2024 Irrigation Engineering Water Requirement of Crops

The ratio of water stored in the root zone during irrigation to the water needed in the root zone prior to irrigation is known as ________.

1

Efficiency of water-application

2

Efficiency of water-storage

3

Efficiency of water-conveyance

4

Efficiency of water-use

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