Allied & ICAR Exam Bank • ALLIED_3389 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Soil-Water-Plant Relationship

Subtopic: Water requirement of crops

Question Statement:

A soil root zone #34 of depth D = 0.90 m has field capacity FC = 28% and permanent wilting point PWP = 14% on dry mass basis. If dry bulk density is rho_b = 1.4 g/cm^3, total available water depth in mm (AWD = rho_b/rho_w * D * (FC - PWP) * 1000) is approx:

Answer Key:

176.4

Step-by-Step Solution & Explanation

AWD = 1.4 * D * 0.14 * 1000 = 176.4 mm.
← Previous (ALLIED_3388) Next (ALLIED_3390) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test