Water Requirement of Crops MCQ with answer and solution

Concept

Irrigation methods without open ditches

Formula

NONE

Step-by-step solution

1. Furrow, check, and traditional sub-irrigation methods rely on open ditches or surface channels for water delivery. 2. Trickle or drip irrigation delivers water directly to the plant root zone via a network of closed pipes, tubes, and emitters. 3. Therefore, trickle irrigation does not utilize open ditches for water delivery. Answer: B

Explanation

Trickle or drip irrigation delivers water directly to the plant roots through a network of plastic pipes, tubes, and emitters rather than open ditches. Furrow, check, and traditional sub-irrigation methods rely on open channels or ditches to distribute water across the land.

Why the other options are wrong

A) Sub-irrigation can utilize open ditches to raise the surrounding water table. C) Furrow irrigation relies on small open channels dug between crop rows for water delivery. D) Check irrigation distributes water across fields using networks of open ditches and levees.

Shortcut

Trickle (drip) irrigation delivers water via pipes and emitters, avoiding open ditches.

Common mistake

Selecting sub-irrigation instead of trickle irrigation, which entirely avoids open ditches for delivery.