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WAEC Agricultural Science 1992 Question 11

Question 11

Irrigation and Drainage

Which of the following is not an advantage of drip-irrigation?

  1. A.Fertilizers can be applied through the system
  2. B.There is reduction in the concentration of salt in the root zone
  3. C.The system operates on a much lower line pressure than spinkler system
  4. D.Its efficiency on water distribution in steep slopes is poor
  5. E.There is considerable maximization on use of water.
Show the answer and explanation

Answer: D (Its efficiency on water distribution in steep slopes is poor)

Explanation

Poor performance on slopes would be a weakness, not an advantage (and drip actually works well on slopes).