Neco Model Questions Vol1 2018 Geography Question 32
Practice objective / multiple choice question 32 from the 2018 Neco Model Questions Vol1 Geography examination.
A soil sample has the following texture percentages: sand \(45\%\), silt \(35\%\) and clay \(20\%\). (a) Identify the USDA soil‑texture class of the sample. (b) Using the empirical water‑holding‑capacity formula \(WHC = 0.5\,(\text{clay}\%) + 0.3\,(\text{silt}\%) + 0.1\,(\text{sand}\%)\) (result in mm), calculate the soil's water‑holding capacity. (c) A rain‑fed crop planted on this soil needs a monthly water requirement of \(30\) mm. Determine whether supplemental irrigation is required.
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About This Question
This is Neco Model Questions Vol1 2018 Geography Question 32. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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