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Agricultural Science WAEC Past Questions

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501
The following crops can be grown as cover crops except
  • A. pueraria phaseoloides
  • B. stylozanthes gracillis
  • C. centrosema pubescens
  • D. nicotiana tabacum
  • E. calopogonium mucunoides
View Answer & Discuss WAEC 1997
502
Effects of overgrazing on soil include the following except
  • A. exposure of soil to erosion
  • B. depletion of soil nutrients
  • C. soil compaction
  • D. improvement of soil structure
  • E. exposure of soil to direct rays of the sun
View Answer & Discuss WAEC 1997
503
A farm practice which assists in maintaining the structure and fertility of soil and reduction in risk of the sun infestation is
  • A. bush burning
  • B. organic manuring
  • C. crop rotation
  • D. mulching
  • E. fertilizer application
View Answer & Discuss WAEC 1997
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504
Drainage types include the following except
  • A. shadoof
  • B. open
  • C. channel
  • D. surface
  • E. underground
View Answer & Discuss WAEC 1997
505
Energy for photosynthesis in crops is provided by
  • A. man
  • B. animal
  • C. wind
  • D. sun
  • E. water
View Answer & Discuss WAEC 1997
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