Neco 2018 Agricultural Science Question 7
Practice objective / multiple choice question 7 from the 2018 Neco Agricultural Science examination.
In a mixed‑farming system the total nitrogen input is \(120\) kg ha\(^{-1}\). Biological nitrogen fixation supplies 60 % of the total, mineral fertilizer supplies 25 %, and the remainder comes from organic manure. Calculate the amount of nitrogen supplied by the organic manure (in kg ha\(^{-1}\)).
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About This Question
This is Neco 2018 Agricultural Science Question 7. It is one of the objective questions from the 2018 Neco Agricultural Science examination.
Difficulty level: Easy .
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