Jamb Agricultural Science Past Questions For Year 2019

Question 61

Crops grown primarily for feeding animals are known as

jamb 2019

  • A. vegetables
  • B. forage
  • C. cereal
  • D. shrubs
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Question 62

The following are the advantages of the sprinkler method of irrigation except

jamb 2019

  • A. The system can be made automatic
  • B. They are portable making them suitable for use
  • C. Rate of application of irrigation water can be controlled
  • D. The method may be difficult for local farmers to use
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Question 63

The parent material of a soil is formed from the disintegration of

jamb 2019

  • A. Sand
  • B. Silt
  • C. Gravel
  • D. Rock
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Question 64

The process whereby rocks are broken down into small particles through both physical and chemical factors is known as

jamb 2019

  • A. Rock degradation
  • B. Weathering
  • C. Erosion
  • D. Oxidation
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Question 65

If a crop requires 1.5kg phosphorus per hectare, how many kg of manure will be required per hectare is 1kg manure contains 0.32kg of phosphorus

jamb 2019

  • A. 2.47kg
  • B. 4.69kg
  • C. 7.35kg
  • D. 12.3kg
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