Neco 2023 Geography Question 15
Practice objective / multiple choice question 15 from the 2023 Neco Geography examination.
A field has a soil pH of 5.2. To raise the pH to 6.5, agricultural lime (CaCO\(\_3\)) is applied. The lime requirement (LR) in kg ha\(^{-1}\) is given by \(LR = \frac{(\text{target pH} - \text{current pH}) \times 1000}{\text{buffer pH}}\), where the buffer pH for this soil is 0.5. Because only 80 % of the applied lime is effective, the amount applied must be increased accordingly. Calculate the amount of lime that should be applied per hectare to achieve the target pH.
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About This Question
This is Neco 2023 Geography Question 15. It is one of the objective questions from the 2023 Neco Geography examination.
Difficulty level: Medium .
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