Neco Model Questions Vol1 2017 Geography Question 25
Practice objective / multiple choice question 25 from the 2017 Neco Model Questions Vol1 Geography examination.
A farmer has a 10‑ha maize field and can choose between two fertilizer regimes.\n\nPlan 1: Apply \(120\) kg ha⁻¹ of a 20‑10‑10 NPK fertilizer (20 % N).\nPlan 2: Apply \(80\) kg ha⁻¹ of a 12‑24‑12 fertilizer (12 % N) together with \(30\) kg ha⁻¹ of urea (46 % N).\n\nThe expected increase in maize yield is \(0.025\) tonne per kilogram of nitrogen actually taken up by the crop. Urea loses 15 % of its nitrogen to volatilisation before uptake. Which plan will give the larger expected yield increase, and by how many tonnes per hectare?
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This is Neco Model Questions Vol1 2017 Geography Question 25. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Geography examination.
Difficulty level: Hard .
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