GCE Agricultural Science 2025 Objective — Question 17
Question 17 of 50 from the General Certificate of Education (GCE) Agricultural Science 2025 Objective paper, with the correct answer and a full explanation.
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A farmer observed purple coloration on cowpea leaves in the field. This deficiency symptom could be corrected by applying
- A. calcium carbonate
- B. ammonium sulphate
- C. single superphosphateCorrect
- D. muriate of potash
Explanation
Purple coloration on cowpea leaves is a symptom of phosphorus (P) deficiency. Single superphosphate is a fertilizer that supplies phosphorus, making it the correct choice.
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