Gce Model Questions Vol1 2023 Geography Question 9

Practice essay / theory question 9 from the 2023 Gce Model Questions Vol1 Geography examination. This question covers Soil formation (CLORPT), Soil classification (FAO), Soil management for cereal production, Crop rotation and soil fertility .

Gce Model Questions Vol1 2023 Geography Essay / Theory
Topics: Soil formation (CLORPT) Soil classification (FAO) Soil management for cereal production Crop rotation and soil fertility
Question 9 GCE_MODEL_QUESTIONS_VOL1 • 2023 • GEOGRAPHY • essay

A farmer in the northern Guinea savanna region of Nigeria observes varying soil characteristics across his 12‑hectare farm, which lies on a gently undulating landscape. The upper 30 cm of the soil on the higher ground is a dark brown loam with a pH of 6.8, while the lower lying area has a lighter brown sandy loam with a pH of 5.2 and a visible accumulation of iron‑oxide nodules. The farmer also notes a thin, dark organic layer (O horizon) over the surface in the shaded part of the farm.

Question Parts

( a )
Explain the five factors of soil formation (CLORPT) and discuss how each factor is likely influencing the observed differences between the higher and lower parts of the farm.
( b )
Using the information provided, classify the soils of the higher and lower areas according to the FAO soil classification system, justifying your choice.
( c )
Propose two management practices for each soil type that would improve its productivity for cereal cultivation, and explain the scientific basis for each practice.
( d )
The farmer plans to introduce a three‑year crop rotation that includes a leguminous plant. Discuss how this rotation could affect soil fertility and structure in both soil types over the rotation period.

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About This Question

This is Gce Model Questions Vol1 2023 Geography Question 9. It is one of the essay questions from the 2023 Gce Model Questions Vol1 Geography examination.

The question covers Soil formation (CLORPT), Soil classification (FAO), Soil management for cereal production, Crop rotation and soil fertility .

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