What is the optimum temperature and pH for nitrifying bacteria ?
Correct answer: D. 25-40 c, pH 8-8.5
- A. 30-35 c, pH 5.5
- B. >35 c, pH less than 5
- C. All of thses
- D. 25-40 c, pH 8-8.5
Explanation
Nitrifying bacteria are most active in warm, near-neutral to slightly alkaline soil, approximately 25–40°C and pH 8–8.5. Strong acidity, especially below pH 5, suppresses nitrification.
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