From top 25% of effective root zone depth how much quantity of total water extraction take place by roots
A. 40%
B. 20%
C. 30%
D. 10%
Answer: Option A
Solution(By Examveda Team)
From the top 25% of effective root zone depth, 40% of total water extraction takes place by roots.The amount of water that a crop can extract from its root zone and its magnitude depending on the type of soil and the rooting depth.
As a rule of thumb about 70% of the moisture extracted by the root is obtained in the top half of the root zone, about 20% from the third quarter and about 10% from the soil in the deepest quarter of the root zone.
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