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Question
What are the reasons that necessitate artificial irrigation?
Or
What is the importance of irrigation?
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Solution
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.
RELATED QUESTIONS
Name a state where Tank irrigation is popular
Give one geographical reason for each of the following statements:
Canal irrigation leads to the ground around it becoming unproductive.
Name two states in which tube wells are extensively used. Give a reason to explain its importance as a source of irrigation.
Why is canal irrigation more popular in Northern India?
Give two advantages and one disadvantages that tube wells have over surface wells.
With reference to well irrigation, answer the following question :
Name two types of well used for irrigation in these states.
Irrigation is necessary despite the monsoon.
Irrigation arrangements are no less important in areas of heavy rainfall in India.
Name the types of irrigation prevailing in India.
State two reasons why there is a need for irrigation in India.
