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प्रश्न
Canal irrigation leads to the ground around it becoming unproductive.
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उत्तर
Excessive flow of water in the fields raises the grounds water level. Capillary action brings alkaline salts to the surface and makes large areas unfit for agriculture.
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संबंधित प्रश्न
Name two modern methods of irrigation. State one important reason for their growing popularity.
Give one geographical reason for each of the following statements:
Irrigation is necessary despite the monsoon.
Name one State where tank irrigation is important. Give three disadvantages of tank irrigation
Why is canal irrigation more popular in Northern India?
Name two states in which tube wells are extensively used. Give a reason to explain its importance as a source of irrigation.
Give two advantages and one disadvantages that tube wells have over surface wells.
What are the reasons that necessitate artificial irrigation?
Or
What is the importance of irrigation?
With reference to well irrigation, answer the following question:
Give two advantages and two disadvantages of wells.
The drip method of irrigation is the best among all modem methods of irrigation.
State two reasons why there is a need for irrigation in India.
