Agricultural Science 2015 Jamb Past Questions and Answers

Question 16 :

• JAMB 2015

Tomatoes are staked in order to

A. Accelerate their growth
B. Induce flowering
C. Accelerate fruit ripening
D. Prevents rotting of fruits

Question 17 :

• JAMB 2015

Crop rotation decreases the incidence of pests by

A. Breaking life cycles of pests
B. Attracting pest predators
C. Sterilizing the soil
D. Maintaining soil fertility.

Question 18 :

• JAMB 2015

The following are advantages of sub-surface irrigation except that

A. It is suitable for soils with low water holding capacity
B. It can be used only for specific types of crops
C. The rate of evaporation is greatly reduced
D. It reduces the incidence of pests

Question 19 :

• JAMB 2015

Soil water that is available for root absorption at field capacity is

A. Capillary water
B. Hygroscopic water
C. Gravitational water
D. Superfluous water.

Question 20 :

• JAMB 2015

The weight of a sheep increased from 25kg to 45kg in two months.

If the total consumption during the period was 60kg. Determine the feed conversion ratio

A. 1 : 1
B. 1 : 2
C. 3 : 1
D. 4 : 1