Advantages and disadvantages of tubewell instead Persian wheel
Answers
advantages are it keeps ground water level constant , it contains water all the seasons
disadvantages are the water in the tubewell is not suitable for drinking directly
Answer:
The advantages of tubewell irrigation are as follows:
(i) It is an independent source of irrigation.
(ii) It brings up clean water.
(iii) It can irrigate large area of agricultural land.
(iv) It is easier to bring up large amount of water in a short time period.
(v) It is a perennial means of irrigation as it is drilled up to permanent water table.
The disadvantages of tubewell irrigation are as follows:
(i) Excessive use of tubewell water can lead to depletion of groundwater.
(ii) It is useless if the water is brackish.
(iii) It is expensive as it requires continuous supply of electricity.