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Agricultural Science Past Questions

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836
A soil with low pH value can be improved by the addition of
  • A. ammonium sulphate
  • B. calcium carbonate
  • C. sodium chloride
  • D. sodium nitrate
View Answer & Discuss WAEC 2003
837
What is the percentage water content of a soil sample which weighed 180g when fresh and 120g when oven dried?
  • A. 66.7%
  • B. 60.0%
  • C. 15.0%
  • D. 33.3%
View Answer & Discuss WAEC 2003
838
Nitrogen may be lost from the soil through the following processes except
  • A. crop removal
  • B. soil erosion
  • C. leaching
  • D. irrigation
View Answer & Discuss WAEC 2003
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839
Nitrogen deficiency in plants can lead to the following except
  • A. stunted growth
  • B. excessive growth
  • C. lower protein content of crop products
  • D. general yellowing of leaves
View Answer & Discuss WAEC 2003
840
Which of the following is not a principal of crop rotation?
  • A. deep-rooted crops should be followed by shallow rooted crops
  • B. a period of fallow must be provided in the cours of the rotation
  • C. a leguminous crop should be included in the system
  • D. crops that can be attacked by the same pest should not follow each other
View Answer & Discuss WAEC 2003
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