Neco Model Questions Vol1 2017 Agricultural Science Question 31
Practice objective / multiple choice question 31 from the 2017 Neco Model Questions Vol1 Agricultural Science examination.
A farmer intends to grow maize on 2 ha. The recommended fertilizer application is 120 kg ha⁻¹ of NPK 20‑10‑10 (i.e., 20 % N, 10 % P₂O₅, 10 % K₂O). He has four fertilizer sources: a mixed fertilizer containing 30 % N, 15 % P₂O₅ and 10 % K₂O; urea containing 46 % N; super‑phosphate containing 20 % P₂O₅; and muriate of potash containing 50 % K₂O. Determine the amounts (in kilograms) of each fertilizer that must be applied so that the total N, P₂O₅ and K₂O supplied exactly meet the recommendation for the 2 ha, while the total weight of fertilizer applied is as small as possible.
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About This Question
This is Neco Model Questions Vol1 2017 Agricultural Science Question 31. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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