Question

In __________ irrigation water falls drop by drop at the position of the roots.

• A. Surface
• B. Drip
• C. Sprinkler
• D. Manual

Answer 1

The correct option is B

Drip

The correct option is B.

Explanation of correct option:

1. Drip is one of the most effective irrigation processes.
2. It involves a central tank from which pipelines are spread across the crop field and a small pipe with an adjustable nozzle is fitted at the base of every plant.
3. Water coming from the tank pours at the base of each plant drop by drop.
4. The rate of drops can be controlled and so can be the time of how long these drops fall at the base of a plant.
5. This inhibits excess loss of water and overwatering of plants.

Explanation of incorrect option:

Option (A):

The kind of irrigation in which the water is poured on the surface and allowed to flow through the crop field.

Option (C):

1. It is an irrigation method that somewhat resembles rain.
2. High-speed water coming out through a pipe is reflected in many directions by a moving plate on top of the pipe making the water spread over a large area like rain.

Option (D):

Manual irrigation is when a person individually waters every plant as we do in the gardens.

Final answer: In drip irrigation water falls drop by drop at the position of the roots.