irrigation
US /ˌɪr.əˈɡeɪ.ʃən/
UK /ˌɪr.əˈɡeɪ.ʃən/
1.
the supply of water to land or crops to aid growth, typically by means of channels, pipes, or sprinklers
:
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Modern irrigation techniques have significantly increased crop yields.
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The region relies heavily on river water for irrigation.