The significant damage to crop generally occurs when capillary meniscus reaches permanent wilting point known as _______________?
Correct answer: B. A and B
- A. Unavailable moisture
- B. A and B
- C. Equivalent moisture
- D. Hygroscopic moisture
Explanation
At the permanent wilting point, soil water is no longer available to plants, so it is termed unavailable moisture. Hygroscopic moisture is also unavailable, and the option combines these two forms as the intended classification.
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