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प्रश्न
Mention two factors that favour the development of tube well irrigation in Punjab.
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उत्तर
A tube well is a deeper well (generally over 15 metres deep) from which water is lifted with the help of a pumping set operated by an electric motor or a diesel engine. Obviously, a tube well cannot be constructed everywhere and requires some geographical conditions favouring its installation. The main factors are:
(i) There should be sufficient quantity of ground water because a tube well can generally irrigate 2 hectares per day against 0.2 hectares per day irrigated by an ordinary well.
(ii) The water level should be nearly 15 metres. If the water table is more than 50 metres deep the cost of pumping out water from the tube well becomes uneconomic.
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संबंधित प्रश्न
Name three traditional means of irrigation.
Give a reason for the significance of irrigation in Rajasthan
Give one geographical reason for each of the following:
Canal irrigation is more suitable in the Northern Plains.
Give one geographical reason for each of the following statements:
Irrigation is necessary despite the monsoon.
Name two states in which tube wells are extensively used. Give a reason to explain its importance as a source of irrigation.
Development of irrigation is essential for the growth of the agriculture sector of India.
With reference to well irrigation, answer the following question :
Name two states in which well irrigation is widely used.
Irrigation is necessary despite the monsoon.
The drip method of irrigation is the best among all modem methods of irrigation.
Name the types of irrigation prevailing in India.
