define irrigation? why is irrigation of crops essential? mention the harmful effects of excessive irrigation
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it is process in which watering to the plant by manual and by machinations
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⚡⚡Irrigation is the process of applying controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation. In contrast, agriculture that relies only on direct rainfall is referred to as rain-fed.⚡⚡
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