Irrigation Engineering
The intensity of irrigation means

Percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually
Percentage of culturable commanded area to be irrigated annually
Percentage of gross commanded area to be irrigated annually
Total depth of water supplied by the number of waterings

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Irrigation Engineering
A water-logged land is found suitable for cultivation due to

Ease of tillage for preparation of the field for optimum condition of germination
None of these
Absence of aeration of soil from root zone of the plant
Regular supply of water to plants from the water table by capillary action

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