A small paragraph on tube well !!!
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every time i ask questions and never get thier answers on time!!
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Tubewell is a device for obtaining
water from beneath the ground, consisting of a wrought-iron pipe armed with a
sharp point, and having a series of perforations at the lower end above the
point. The development of tube-well irrigation, supported by investment in electrification
and credit provision, has been the main driving force behind irrigation
expansion and productivity improvements over the past few decades, particularly
in the northwest.
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