Neco 2021 Agricultural Science Question 41
Practice objective / multiple choice question 41 from the 2021 Neco Agricultural Science examination.
A farmer intends to cultivate maize on 2 ha. The recommended fertilizer rates are 120 kg N, 60 kg P₂O₅ and 40 kg K₂O per hectare. He has a blended fertilizer that contains \(30\%\) N, \(20\%\) P₂O₅ and \(10\%\) K₂O (by weight). He can also buy pure N (100\% N) and pure K (100\% K) fertilizers, but will not purchase any separate P fertilizer. Determine the number of kilograms of the blended fertilizer and the kilograms of pure N fertilizer he must purchase so that the exact recommended amounts of N, P₂O₅ and K₂O are supplied. (Assume the required amount of K₂O that remains after using the blended fertilizer is supplied by the pure K fertilizer.)
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About This Question
This is Neco 2021 Agricultural Science Question 41. It is one of the objective questions from the 2021 Neco Agricultural Science examination.
Difficulty level: Medium .
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