If a farmer left his land uncultivated for five years before returning to it, he…

If a farmer left his land uncultivated for five years before returning to it, he must be practising
  • A.
    modern agriculture
  • B.
    strip cropping
  • C.
    contour ridging
  • D.
    crop rotation
  • E.
    the bush fallow system
Correct Answer: Option E
Explanation
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