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Q 6. What is irrigation? Describe two methods of irrigation which conserve water.
Answers (1)
The supply of water to crops at regular intervals is called irrigation.
Two methods of irrigation which conserve water are:
(i) Sprinkler system: The perpendicular pipes, having rotating nozzles on top, are joined to the main pipeline at regular intervals. When water is allowed to flow through the main pipe under pressure with the help of a pump, it escapes from the rotating nozzles. It gets sprinkled on the crop as if it is raining.
(ii) Drip system: the water falls drop by drop directly near the roots. So it is called the drip system. Water is not wasted at all. It is a boon in regions where the availability of water is poor.
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