Neco 2018 Agricultural Science Question 1

Practice practical question 1 from the 2018 Neco Agricultural Science examination. This question covers Agricultural Ecology .

Neco 2018 Agricultural Science Practical
Topic: Agricultural Ecology
Question 1 NECO • 2018 • AGRICULTURAL_SCIENCE • practical

A farmer wishes to evaluate the effect of intercropping maize (Zea mays) with cowpea (Vigna unguiculata) on the incidence of the stem borer (Chilo partellus) compared with sole maize cropping.

Question Parts

( a )
Outline a suitable field experiment, specifying (i) the layout of the plots, (ii) the number of replications required, and (iii) the data that should be recorded during the trial.
( b )
During the 8‑week trial the following total numbers of stem‑borer larvae were counted from ten plants in each replicate. Sole maize: Rep 1 = 45, Rep 2 = 50, Rep 3 = 48. Intercrop (maize + cowpea): Rep 1 = 30, Rep 2 = 28, Rep 3 = 32. Calculate:
( c )
Identify two major sources of error that could affect the reliability of the results and suggest one practical way to minimise each error.

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About This Question

This is Neco 2018 Agricultural Science Question 1. It is one of the practical questions from the 2018 Neco Agricultural Science examination.

The question covers Agricultural Ecology .

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