A fertile soil is likely to have a pH value of:
Correct answer: A. 6-7
- A. 6-7
- B. 8-9
- C. 3-4
- D. 10-11
Explanation
Most mineral nutrients are readily available near neutral pH, roughly 6 to 7, while very acidic or alkaline soils restrict nutrient uptake. Fertility also depends on organic matter and nutrients, so pH alone is only an indicator.
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