Waec Model Questions Vol1 2017 Agricultural Science Question 1

Practice practical question 1 from the 2017 Waec Model Questions Vol1 Agricultural Science examination. This question covers Green manuring, Soil organic matter, Carbon sequestration .

Waec Model Questions Vol1 2017 Agricultural Science Practical

Topics: Green manuring Soil organic matter Carbon sequestration

Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • AGRICULTURAL_SCIENCE • practical

A farmer intends to improve soil organic matter on a 0.5 ha field by using a leguminous green‑manure crop, Mucuna pruriens, for 8 weeks before planting maize. The average dry‑matter yield of M. pruriens is 12 t ha⁻¹ and its carbon content is 45 % (by weight).

Question Parts

( a )

Calculate the amount of carbon (in kilograms) that will be added to the soil from the green‑manure crop.

( b )

State two ecological or agronomic benefits of incorporating M. pruriens as a green‑manure in the cropping system.

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About This Question

This is Waec Model Questions Vol1 2017 Agricultural Science Question 1. It is one of the practical questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Green manuring, Soil organic matter, Carbon sequestration .

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