Gce Model Questions Vol1 2022 Geography Question 18
Practice objective / multiple choice question 18 from the 2022 Gce Model Questions Vol1 Geography examination.
A soil profile consists of three horizons to a depth of 1.0 m: - Horizon A (0-30 cm): field capacity \(\theta_{FC}=0.30\), wilting point \(\theta_{WP}=0.15\). - Horizon B (30-70 cm): \(\theta_{FC}=0.28\), \(\theta_{WP}=0.13\). - Horizon C (70-100 cm): \(\theta_{FC}=0.25\), \(\theta_{WP}=0.12\). Assume a uniform bulk density of 1.3 g cm\(^-3\) for all horizons. The available water in each horizon is calculated as \((\theta_{FC}-\theta_{WP})\times\text{depth (cm)}\times10\) to give millimetres of water. A wheat crop requires at least 150 mm of available water in the root zone (0-1.0 m). Is this soil suitable for wheat cultivation?
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About This Question
This is Gce Model Questions Vol1 2022 Geography Question 18. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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