Walkley and blacks method of organic matter determination allows recovery of ______ ℅ organic carbon content:
Correct answer: D. None of the above
- A. 44 ℅
- B. 45 ℅
- C. 33℅
- D. None of the above
Explanation
Walkley-Black oxidation normally recovers about 77% of the soil organic carbon, so the stated values of 44%, 45%, and 33% are incorrect. Therefore, none of the listed numerical values is correct.
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