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प्रश्न
What are the reasons that necessitate artificial irrigation?
Or
What is the importance of irrigation?
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उत्तर
Artificial irrigation has to be resorted to for the following reasons:
(i) Indian rainfall is periodic. Most of the rainfalls is in four months from June to September. The remaining eight months are dry.
(ii) Rainfall is not well distributed during the rainy season. During the four months of the
monsoon, there are spells of dry weather. There are regions where the rainfall is scanty, e.g., Rajasthan, Punjab, Haryana, the interior parts of Peninsular Plateau get much less rain than is required.
(iii) Agricultural crops are varied. The requirements of water varies for different crops. Rice requires heavy rain. Sugarcane, tobacco, vegetables also require regular and abundant supply of water.
(iv) Ample supply of water is required during the period of growth.
(v) India is a hot country. Evaporation is rapid.
(vi) Drought conditions. In India droughts commonly occur. This becomes a problem not only for agriculture but also the economy of the entire country.
संबंधित प्रश्न
Give one geographical reason for each of the following:
Sprinkler irrigation is practised in arid and semi-arid regions.
State two reasons why tank irrigation is popular in South India.
Mention two advantages that surface wells have over inundation canals.
Give one geographical reason for each of the following statements:
Canal irrigation leads to the ground around it becoming unproductive.
There is an urgent need for water conservation in India.
What do you mean by irrigation?
Name one State where tank irrigation is important. Give three disadvantages of tank irrigation
With reference to well irrigation, answer the following question :
Name two types of well used for irrigation in these states.
Irrigation is very necessary for solving the food problem.
State two reasons why there is a need for irrigation in India.
