Neco 2025 Agricultural Science Question 20
Practice objective / multiple choice question 20 from the 2025 Neco Agricultural Science examination.
A forest stand of a fast‑growing timber species follows the logistic growth model \(V(t) = \frac{K}{1 + e^{-r(t - t_0)}}\) where \(V\) is the standing volume (m³ per hectare), \(K = 200\) m³/ha, intrinsic rate \(r = 0.08\) yr⁻¹, and the inflection point \(t_0 = 25\) years. The forest is managed on a 40‑year rotation. The manager plans to harvest a proportion \(h\) of the standing volume at year 40 and then replant. To ensure the average annual increment (AAI) over the rotation is at least 4 m³/ha·yr, what is the maximum allowable harvest proportion \(h\) (expressed as a decimal, rounded to two decimal places)?
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About This Question
This is Neco 2025 Agricultural Science Question 20. It is one of the objective questions from the 2025 Neco Agricultural Science examination.
Difficulty level: Hard .
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