Gce Model Questions Vol1 2020 Agricultural Science Question 5
Practice objective / multiple choice question 5 from the 2020 Gce Model Questions Vol1 Agricultural Science examination.
The diagram shows a wheat crop canopy with a leaf‑area index (LAI) of \(3\). The extinction coefficient for the canopy is \(k = 0.5\). Incident solar radiation is \(15\) MJ m⁻² day⁻¹ and the growing season lasts \(120\) days. The radiation‑use efficiency (RUE) of wheat is \(1.5\) g MJ⁻¹ and the harvest index is \(0.45\). Estimate the grain yield in tonnes per hectare.
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This is Gce Model Questions Vol1 2020 Agricultural Science Question 5. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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