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Agricultural Science 2019 JAMB Past Questions

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51

In which of the soil layer does most biological activity occur?

  • A. B - horizon
  • B. C - horizon
  • C. D - horizon
  • D. A - horizon
View Answer & Discuss JAMB 2019
52

All but one are related to surface irrigation?

  • A. Mole drainage
  • B. Natural flooding
  • C. Sprinkler irrigation
  • D. Check flooding
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53

All but one are related to surface irrigation?

  • A. Mole drainage
  • B. Natural flooding
  • C. Sprinkler irrigation
  • D. Check flooding
View Answer & Discuss (1) JAMB 2019
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54

The most effective method of controlling or preventing viral diseases in plants is by

  • A. practising crop rotation
  • B. spraying crops regularly
  • C. planting resistant varieties
  • D. burning affected crops
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55

Reduction of ten seedlings of maize to two per stand is referred to as

  • A. Thinning
  • B. Spacing
  • C. Weeding
  • D. Pruning
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