Question

Irrigation efficiency of an irrigation system is the ratio of:

• A. Water reaching the farm to water delivered from the source.
  
• B. Crop yield to total amount of water used in a field.
• C. Water actually stored in root zone to water delivered to the farm.
• D. Water actually utilized by growing crop to water delivered from the source.

Answer 1

The correct option is C Water actually stored in root zone to water delivered to the farm.

Irrigation efficiency is the ratio of the amount of water consumed by the crop to the amount of water supplied through irrigation (surface, sprinkler or drip irrigation).