Neco 2017 Agricultural Science Question 5
Practice objective / multiple choice question 5 from the 2017 Neco Agricultural Science examination.
In a 5‑ha maize field the initial disease incidence is 5 %. The weekly incidence follows the logistic update \( I_{t+1}=I_{t}+r I_{t}(1-I_{t}) \) with \(r=0.3\). A fungicide applied at the end of week 3 reduces the incidence instantly by 40 %. Determine the disease incidence (as a percentage) at the end of week 6, rounded to one decimal place.
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About This Question
This is Neco 2017 Agricultural Science Question 5. It is one of the objective questions from the 2017 Neco Agricultural Science examination.
Difficulty level: Medium .
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