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Question
Canal irrigation leads to the ground around it becoming unproductive.
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Solution
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.
RELATED QUESTIONS
Name three traditional means of irrigation.
Name a state where Tube wells are common.
Give one geographical reason for each of the following:
Sprinkler irrigation is practised in arid and semi-arid regions.
Give one geographical reason for 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.
Mention two factors that favour the development of tube well irrigation in Punjab.
Name one State where tank irrigation is important. Give three disadvantages of tank irrigation
Give two advantages and one disadvantages that tube wells have over surface wells.
With reference to well irrigation, answer the following question:
Give two advantages and two disadvantages of wells.
Irrigation is necessary despite the monsoon.
