Question

Which of the following characteristics is wrong about extensive irrigation?

(a) The irrigation extends to a large area with the lowest available supply

(b) Agricultural production and protection against famine will be at optimum levels

(c) The crop production will be minimal per unit of available water

(d) It creates a perpetual scarcity of water

The question was posed to me at a job interview.

The origin of the question is Canal Regulation topic in division Canal Irrigation System of Irrigation Engineering

Answer 1

Correct choice is (c) The crop production will be minimal per unit of available water

For explanation I would say: In spite of the fact that this method requires good control and monitoring on the release of water, it is usually adopted in India. The production would be the maximum per unit of available water, though it may not be optimum of the land covered.