Jamb Agricultural Science Past Questions For Year 2015

Question 1

The process of grafting in crop production involves

jamb 2015

  • 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.
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Question 2

In preparing for parturition of a sow, warmth should be provided to

jamb 2015

  • A. Promote growth of hair of the young
  • B. make the young suckle colostrum's
  • C. prevent anaemia in the young
  • D. prevent chilling of the young.
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Question 3

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?

jamb 2015

  • A. P
  • B. Q
  • C. R
  • D. S
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Question 4

Which of the following statements about soil organisms is false?

jamb 2015

  • 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.
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Question 5

A regulatory control of diseases in crop production is

jamb 2015

  • A. roughing
  • B. quarantine
  • C. crop rotation
  • D. Soil tillage.
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