Jamb Agricultural Science Past Questions and Answers

Question 121:

• JAMB 2015

Pineapple is widely propagated using

A. Seeds
B. Suckets
C. Slips
D. Cuttings

Question 122:

• JAMB 2015

The process of grafting in crop production involves

A. The fusion of gametes of two crops
B. Inducing rooting from stems
C. The transfer of a bud from one crop to another
D. The joining of two parts from related crops.

Question 123:

• JAMB 2015

If the recommended spacing for a tree crop is 2.5cm by 4.0m determine the number of seedlings required to plant a 2-hectare farmland.

A. 1,000
B. 2,000
C. 10,000
D. 20,000

Question 124:

• JAMB 2015

A regulatory control of diseases in crop production is

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

Question 125:

• 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.