Question

What are the merits and demerits of tank irrigation?

Answer 1

Merits:

• Most of the tanks are natural, making use of local mounds and depressions. Hence it is cost saving.
  
• These are generally constructed on rocky bed and have a longer life span.
  
• In some tanks fishing is also carried on which supplies food and income to farmers.
  

Demerits:

• Drying up of tanks during dry season which is the most required season of irrigation.
  
• Silting of tank bed.