Correct Answer - Option 1 : Flow irrigation
Explanation:
Flow irrigation:
(i) These are also called gravity irrigation. It is the type of irrigation in which water is available at a higher level to enable supply to the land by gravity flow.
Lift Irrigation:
(i) When groundwater lifted up to be used as irrigation water or water supply is at too low a level to run by the gravitation of the land.
(ii) In this water is lifted up by some mechanical means such as pump.
Drip irrigation:
(i) This is also called as trickle irrigation as water is directly applied to the root zone of the plant using a drip nozzle.
(ii) In this method evaporation and percolation losses are very less.
(iii) This is the most efficient method.
Sprinkler irrigation:
(i) In this method of irrigation water is applied through a network of pipes and pumps. This method is suitable:
- when topography is irregular or rolling.
- when water table is high
- when water is not easily available
- for more permeable as well as less permeable soil
