Waec Model Questions Vol1 2020 Agricultural Science Question 2

Practice essay / theory question 2 from the 2020 Waec Model Questions Vol1 Agricultural Science examination. This question covers Soil Science .

Waec Model Questions Vol1 2020 Agricultural Science Essay / Theory

Topic: Soil Science

Question 2 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • AGRICULTURAL_SCIENCE • essay

Waec Model Questions Vol1 2020 Agricultural Science Question 2 diagram

A soil scientist is investigating the water‑holding capacity of three soil types – sandy loam, clay loam and peat – using the laboratory apparatus shown.

Question Parts

( a )

Describe the step‑by‑step procedure for determining the water‑holding capacity of each soil sample with the given apparatus.

( b )

After the procedure, the water retained in the columns are 80 ml (sandy loam), 150 ml (clay loam) and 300 ml (peat). If the dry weight of each soil sample is 200 g, calculate the percentage water‑holding capacity for each soil type.

( c )

Interpret the calculated water‑holding capacities in terms of the suitability of each soil for crop production in a semi‑arid region.

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About This Question

This is Waec Model Questions Vol1 2020 Agricultural Science Question 2. It is one of the essay questions from the 2020 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Soil Science .

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