Question

For maximum productivity of crops both surface and sub-surface drains are sometimes needed.

(a) True

(b) False

The question was asked during an internship interview.

The question is from Water Logged Reclamation in division Water Logged Reclamation and Saline Soils for Agricultural Purposes of Irrigation Engineering

Answer 1

Correct choice is (a) True

Explanation: Surface drains are needed for crops cultivated on flat lands to remove excess irrigation water, whereas subsurface drains are needed for soils having poor internal drainage and high water table. So, therefore for maximum productivity of crops both surface and subsurface drains are sometimes essential especially in regions of high water table.