Water crops by artificial means
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Explanation:
Flood irrigation; entire soil surface is covered with water; it moves over the field by gravity flow. Sprinkler irrigation; crops are irrigated with high-pressure sprinklers set in the field; it can be solid or hand-moved.
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Explanation: , the conventional method of irrigation in NW India, can be highly inefficient where flow rates are inadequate to complete the irrigation quickly (a couple of hours). The inefficiency is due to deep drainage below the rootzone.
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