Mention any three advantages of well irrigation in India. -Geography

Mention any three advantages of well irrigation in India. -Geography
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Three advantages of well irrigation are :  (i) Well is the simplest and the cheapest source of irrigation as the farmer has to pay regularly for canal irrigation which is not the case with well irrigation.  (ii) Well is an independent source of irrigation and can be used as and when the necessity arises. It is not controlled by other agencies.  (iii) Several chemicals such as Nitrates, Chlorides, Sulphates are mixed in well water naturally which add to the fertility of the soil.
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