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Agriculture · Q301

Agronomy

Graduate and Post Graduate · Agriculture · question 301

Q301

Which potential is not calculated for soil water?

A.
Matric potential
B.
Turgor potential
Answer
C.
Pressure potential
D.
Gravity potential

Answer: Option B

Solution

Answer: Option B
Solution:
Matric potential, pressure potential and gravity potential are all calculated for soil water while turgor potential is not calculated for soil water.
The turgor potential is the difference between osmotic potential and water potential, assuming that matric potential and gravitational potential are negligible.
A matric potential exits in soil when the soil is unsaturated and the water in the soil is under tension.