Question

The field level application efficiency of conventional surface irrigation method is

• A. \(20\) to \(25%\)
• B. \(30\) to \(35%\)
• C. \(40\) to \(50%\)
• D. \(55\) to \(60%\)

Hint:

Surface irrigation generally has lower application efficiency than sprinkler and drip irrigation.

Answer 1

The Correct Option is C

Concept:
Application efficiency represents how effectively irrigation water applied to the field is stored in the crop root zone.

Step 1: In conventional surface irrigation, water is applied over the soil surface.

Step 2: Losses may occur due to runoff, deep percolation and non-uniform distribution.

Step 3: Because of these losses, field level application efficiency is not very high.

Step 4: The field level application efficiency of conventional surface irrigation is generally: \[ 40\text{ to }50% \] \[ \boxed{40\text{ to }50%} \]