Gce Model Questions Vol1 2017 Agricultural Science Question 1

Practice essay / theory question 1 from the 2017 Gce Model Questions Vol1 Agricultural Science examination. This question covers Agricultural Ecology .

Gce Model Questions Vol1 2017 Agricultural Science Essay / Theory
Topic: Agricultural Ecology
Question 1 GCE_MODEL_QUESTIONS_VOL1 • 2017 • AGRICULTURAL_SCIENCE • essay

A mixed‑farming system is being introduced on a 10‑hectare farm in the savanna zone of Nigeria. The farmer plans to grow maize, cowpea and raise goats. The farm includes a small pond, a hedgerow of native trees and a compost heap.

Question Parts

( a )
Explain how rotating maize with cowpea can improve soil fertility, referring specifically to the role of nitrogen fixation.
( b )
Discuss two ecological benefits of retaining the hedgerow of native trees within the farm system.
( c )
The farmer wishes to estimate the water requirement for the maize crop during the growing season. Average evapotranspiration is 5 mm day⁻¹ for 120 days. The pond supplies 60 % of the water while rainfall supplies the remaining 40 %. Six hectares are allocated to maize. Calculate the total volume of water (in cubic metres) that must be drawn from the pond.

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About This Question

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

The question covers Agricultural Ecology .

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