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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 a reason why traditional means of irrigation are still important in most parts of India.
Give one geographical reason for each of the following:
Sprinkler irrigation is practised in arid and semi-arid regions.
Give one geographical reason for each of the following:
A tube well should be installed in a fertile and productive region.
Name two modern methods of irrigation. State one important reason for their growing popularity.
Give one geographical reason for each of the following statements:
The drip method of irrigation is the best among all modern methods 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.
With reference to well irrigation, answer the following question :
Name two types of well used for irrigation in these states.
With reference to well irrigation, answer the following question :
Describe two methods of drawing water from the wells.
With reference to well irrigation, answer the following question:
Give two advantages and two disadvantages of wells.
