Water available above the top of root zone of plants is about 15% of soil moisture contents, is mostly not available to plants celled_________________?
Correct answer: D. Hygroscopic water
- A. Capillary water
- B. Irrigation water
- C. Effective water
- D. Hygroscopic water
Explanation
Hygroscopic water forms a very thin film tightly adsorbed to soil particles and is generally unavailable to plants. Capillary water is the main plant-available fraction, although some of it may also be held too tightly in fine pores.
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