Neco Model Questions Vol1 2025 Agricultural Science Question 42
Practice objective / multiple choice question 42 from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
A farmer has 2 ha of maize. Soil test shows available N = 60 kg ha⁻¹, P = 20 kg ha⁻¹, K = 30 kg ha⁻¹. The target levels for optimum yield are N = 120 kg ha⁻¹, P = 40 kg ha⁻¹, K = 60 kg ha⁻¹. Fertiliser A contains 30 % N, 10 % P₂O₅ and 20 % K₂O. Fertiliser B contains 15 % N, 20 % P₂O₅ and 10 % K₂O. (Convert P₂O₅ to elemental P by multiplying by 0.44, and K₂O to elemental K by multiplying by 0.83.) Determine, to the nearest kilogram, how many kilograms per hectare of Fertiliser A and Fertiliser B should be applied so that the nutrient increases meet the targets while the total amount of fertiliser applied is minimised.
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About This Question
This is Neco Model Questions Vol1 2025 Agricultural Science Question 42. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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