Gce Model Questions Vol1 2024 Agricultural Science Question 2

Practice essay / theory question 2 from the 2024 Gce Model Questions Vol1 Agricultural Science examination. This question covers Soil Science .

Gce Model Questions Vol1 2024 Agricultural Science Essay / Theory
Topic: Soil Science
Question 2 GCE_MODEL_QUESTIONS_VOL1 • 2024 • AGRICULTURAL_SCIENCE • essay

A soil scientist conducts a laboratory experiment to compare the infiltration characteristics of three different soil types: sandy loam (S1), clay loam (S2) and peat (S3). The experiment uses a rectangular soil column (30 cm high, 10 cm wide) divided into three equal compartments, each 10 cm high and labelled S1, S2 and S3 as shown in the illustration. Water is poured at a constant rate into the top of the column and the time taken for a fixed volume of 200 ml to infiltrate each compartment is recorded. Data recorded: - S1 (sandy loam): 30 s - S2 (clay loam): 70 s - S3 (peat): 120 s Using this information, answer the following:

Question Parts

( a )
Calculate the average infiltration rate (in ml s⁻¹) for each soil type.
( b )
Explain, with reference to soil texture, why the infiltration rates differ among the three soils.
( c )
Based on the results, recommend an appropriate soil amendment for the soil with the lowest infiltration rate and justify how it will improve infiltration.

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About This Question

This is Gce Model Questions Vol1 2024 Agricultural Science Question 2. It is one of the essay questions from the 2024 Gce Model Questions Vol1 Agricultural Science examination.

The question covers Soil Science .

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