Question

Which of the following statement(s) is/are true for tensiometer?
(A). It measures soil water potential.
(B). It is simple in operation and very useful for scheduling irrigation.
(C). It can also be used for measuring soil water flux.
(D). Although limited to $<$ 1 bar matric potential, this range can be increased by increasing the permeability of its porous cup.
Choose the correct answer from the options given below:

• A. (A), (B) and (C) only
• B. (A), (B) and (D) only
• C. (A) and (D) only
• D. (D) only

Hint:

The operating range of a standard tensiometer is strictly limited to 0 to 0.85 bar because air bubbles enter the tube or the water column cavitates at high tensions.

Answer 1

The Correct Option is A