WAEC Agricultural Science 2020 Question 16

Question 16

Farming Systems

A farmer designed the table below for implementation on a farm.
Plot 1: Year 1 Yam, Year 2 Groundnut, Year 3 Maize, Year 4 Cowpea
Plot 2: Groundnut, Maize, Cowpea, Yam
Plot 3: Maize, Cowpea, Yam, Groundnut
Plot 4: Cowpea, Yam, Groundnut, Maize
Which of the following crops can conveniently replace maize in the table?

A.Cassava
B.Cashew
C.Mango
D.Millet

Show the answer and explanation

Answer: D (Millet)

Explanation

A one-year rotation needs an annual crop of the same type, so millet (a cereal) replaces maize.