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प्रश्न
Mention two factors that favour the development of tube well irrigation in Punjab.
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
Give a reason why traditional means of irrigation are still important in most parts of India.
Give one geographical reason for each of the following:
A tube well should be installed in a fertile and productive region.
Give one geographical reason for each of the following:
Canal irrigation is more suitable in the Northern Plains.
“Without irrigation, development of agriculture is difficult in India”. Clarify the statement by giving two reasons.
Name two modern methods of irrigation. State one important reason for their growing popularity.
“The modern means of irrigation are gaining popularity.” Give two reasons to justify this statement.
Development of irrigation is essential for the growth of the agriculture sector of India.
Name one State where tank irrigation is important. Give three disadvantages of tank irrigation
With reference to well irrigation, answer the following question:
Give two advantages and two disadvantages of wells.
Irrigation is very necessary for solving the food problem.
