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Agricultural Science 2000 WAEC Past Questions

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16

A farmer who applies gypsum on his farmland intends to

  • A. decrease soil acidity
  • B. increase soil acidity
  • C. decrease soil alkalinity
  • D. increase soil alkalinity
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17
In the nitrogen cycle,nitrosomonas and nitrobacter are responsible for
  • A. ammonification
  • B. nitrification
  • C. dentrification
  • D. nitrogen reduction
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18
Wood ash and oil palm bunches are rich sources of
  • A. potassium
  • B. nitrogen
  • C. molybdenum
  • D. sulphur
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19
If 200kg of NPK fertilizer is required for an hectare of maize farm, calculate the amount of the fertilizer required for 15 hectares of maize farm.
  • A. 600 kg
  • B. 2,000 kg
  • C. 3,000 kg
  • D. 6,000 kg
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20
Which of the following is the correct trend in the historical development of power on the farm?
  • A. animal power-man power-mechanical power
  • B. man power-animal power-mechanical power
  • C. man power-mechanical power-animal power
  • D. animal power-mechanical power-man power
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