Question

what are the advantages and disadvantages of well tubewell and canal irrigation?​

Answer 1

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They make soil fertility when they reach the agricultural field along with well water. It is more reliable during periods of famine when surface water dries up. Disadvantages of well and Tube Well Irrigation: With these methods, only limited area can be irrigated. Normally, a well can irrigate 1 to 8 hectares of land.

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Answer 2

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⚡Advantages of tubewell irrigation ➡

• It is an independent source of irrigation
• It brings up clean water
• It is a perennial means of irrigation as it is drilled up to permanent water table

⚡ Disadvantages of tubewell irrigation ➡

• Excessive use of tubewell can lead to depletion of underground
• It is useless if the water is brackish

✍️ Advantages of canal irrigation ➡

• The rainfall deficiency in some areas is made up by canals taken out from the perennial rivers
• Canal irrigation has enabled Punjab and Haryana to be called the ' granary of the country ' and nucleus of the Green Revolution

✍️ Disadvantages of canal irrigation ➡

• In canal irrigation where the water table is a few feet below the ground , the alkaline salts come to the surface, mix with the soil and make it unproductive
• At some places where the perennial unlined canals flow at the ground level and between raised high banks , the water table may reach the surface and make the once cultivated soil completely waterlogged . Complete saturation of the soil with water may give rise to swamps