NECO Agricultural Science 2025 Objective — Question 17
Question 17 of 50 from the National Examinations Council (NECO) Agricultural Science 2025 Objective paper, with the correct answer and a full explanation.
Advertisement
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.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.