Gce Model Questions Vol1 2023 Agricultural Science Question 33
Practice objective / multiple choice question 33 from the 2023 Gce Model Questions Vol1 Agricultural Science examination.
A farmer practices a two‑year rotation of maize and soybean. Maize requires 120 kg N ha⁻¹. The soybean crop fixes 60 kg N ha⁻¹ and leaves 30 kg N ha⁻¹ in its residues. The soil initially supplies 40 kg N ha⁻¹. No synthetic nitrogen fertilizer is to be applied. What is the minimum proportion of the total area that must be planted to soybean each year to meet the nitrogen requirement of the maize crop?
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About This Question
This is Gce Model Questions Vol1 2023 Agricultural Science Question 33. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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