Jamb Agricultural Science 2015 Past Questions and Answers

Question 46:

• JAMB 2015

A regulatory control of diseases in crop production is

A. Roughing
B. Quarantine
C. Crop rotation
D. Soil tillage.

Question 47:

• JAMB 2015

Which of the following statements about soil organisms is false?

A. Soil pH will affect the population of soil organisms
B. Population of soil living organisms is increased with increase in soil organic matter
C. Soil with good texture and structure cannot harbour soil microbes
D. Soil temperature affects the activities of soil organisms.

Question 48:

• JAMB 2015

The data for feed consumption and weighing gain of four farm animals labelled P, Q, R and S are shown below.

P -50kg feed consumed and 20kg weight gained Q -90kg feed consumed and 30kg weight gained R -100kg feed consumed and 25kg weight gained S - 150kg feed consumed and 30kg weight gained.

Which of the following must efficient feed converter?

A. P
B. Q
C. R
D. S