Waec Model Questions Vol1 2018 Agricultural Science Question 32
Practice objective / multiple choice question 32 from the 2018 Waec Model Questions Vol1 Agricultural Science examination.
A farmer wants to raise maize yield from 3.5 t ha⁻¹ to 5.0 t ha⁻¹. Research indicates that each additional tonne of maize requires 25 kg of nitrogen. The soil currently supplies 30 kg N ha⁻¹. A nitrogen fertilizer contains 30 % N by weight and the nitrogen use efficiency is 60 %. How many kilograms of this fertilizer should be applied per hectare (rounded to the nearest kilogram)?
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About This Question
This is Waec Model Questions Vol1 2018 Agricultural Science Question 32. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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