Gce Model Questions Vol1 2025 Agricultural Science Question 4
Practice objective / multiple choice question 4 from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
A farmer cultivates maize on a 5‑ha field. The yield response to nitrogen fertilizer (N, in kg ha^{-1}) is described by Y = 2 + 0.04N - 0.0002N^{2} tonnes ha^{-1} (valid for 0 \le N \le 200). Maize sells for ₦150 kg^{-1}. Nitrogen fertilizer costs ₦30 kg^{-1}, and other costs are fixed at ₦20 000 ha^{-1}. Determine the nitrogen rate (kg ha^{-1}, rounded to the nearest whole number) that maximises profit per hectare, and state the maximum profit (in ₦, rounded to the nearest whole number).
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About This Question
This is Gce Model Questions Vol1 2025 Agricultural Science Question 4. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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