Neco Model Questions Vol1 2019 Agricultural Science Question 1

Practice essay / theory question 1 from the 2019 Neco Model Questions Vol1 Agricultural Science examination. This question covers Agricultural Ecology .

Neco Model Questions Vol1 2019 Agricultural Science Essay / Theory
Topic: Agricultural Ecology
Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2019 • AGRICULTURAL_SCIENCE • essay

A farmer intends to establish a mixed‑farming system on a 5‑hectare farm located in the Sudan savanna zone.

Question Parts

( a )
Explain how a crop‑rotation sequence that alternates cereals (e.g., maize) with legumes (e.g., cowpea) can improve soil fertility and break pest cycles.
( b )
The farmer will grow maize on 3 ha and cowpea on 2 ha. Cowpea fixes an average of 25 kg N ha⁻¹, while maize requires 150 kg N ha⁻¹. Calculate the net nitrogen balance (in kg) for the whole farm. Show all steps.
( c )
Discuss two ecological advantages of integrating a small ruminant herd (e.g., goats) into this mixed‑farming system, focusing on nutrient cycling and biodiversity.

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About This Question

This is Neco Model Questions Vol1 2019 Agricultural Science Question 1. It is one of the essay questions from the 2019 Neco Model Questions Vol1 Agricultural Science examination.

The question covers Agricultural Ecology .

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