Neco Model Questions Vol1 2019 Agricultural Science Question 2

Practice practical question 2 from the 2019 Neco Model Questions Vol1 Agricultural Science examination. This question covers Soil Science, Soil Texture, Soil Bulk Density .

Neco Model Questions Vol1 2019 Agricultural Science Practical

Topics: Soil Science Soil Texture Soil Bulk Density

Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2019 • AGRICULTURAL_SCIENCE • practical

A soil sample was analysed in the laboratory using the hydrometer method to determine texture, and a separate core sample was used to determine bulk density. The data obtained are:

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( a )

The oven‑dry mass of the soil used for the texture analysis was 50.0 g. The hydrometer readings (in g L⁻¹) were 30.0 at 40 s and 20.0 at 2 min. Assuming a 1 L suspension and a temperature correction factor of 1.0, calculate the percentage of sand, silt and clay in the sample. (Sand = particles that settle between 40 s and 2 min, silt = particles that settle after 2 min but before 5 min – assume the remaining 20 g represent clay.)

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This is Neco Model Questions Vol1 2019 Agricultural Science Question 2. It is one of the practical questions from the 2019 Neco Model Questions Vol1 Agricultural Science examination.

The question covers Soil Science, Soil Texture, Soil Bulk Density .

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