Necessity of Irrigation
India is a basically an agricultural country, with a vast diversity of
climate, topography and vegetation. Water is evidently the most vital element
in the plant life. Rainfall varies considerably from place to place as well as
its amount. Therefore, crops cannot be grown over the entire land without the
help of Irrigation.
Necessity of Irrigation is due to the following factors:
1. Less Rainfall: If low amount of Rainfall occur in an area, where
the demand of water for crops is more than the rainfall then Irrigation will
provide a huge role.
2. Crop Requirement: Different type of
Crops required different amount of water for their growth which is easily done
with the help of Irrigation.
3. Non-uniform Rainfall: The Rainfall is not uniform at every place and
throughout the year. It varies from place to place and time to time.
For example: In Rajasthan rainfall is very less as compared to Assam.
4. Water holding capacity: Soil which can hold more amount of
water(example: clay soil) required less amount of water for
plant growth, irrigation is generally not required in this case but if soil
holds less amount of water(example: sandy soil) then the
irrigation is to be provided.
5. Growing perennial crops: perennial crops such as sugar cane,
which required water throughout the year, can be grown only through the
provision of irrigation facilities in the area.
6. Ground water recharge: Irrigation also necessary in increasing the ground water recharge.
(groundwater recharge helps in future for shortage problem of water)
Frequently asked Questions:
1. Why irrigation is necessary in India?
Ans: Irrigation is necessary in India because 80% of rainfall in india
is received during monsoon season. Therefore, for other season there is a need
of irrigation water. So, irrigation is very important supply source for crops.