WAEC Agricultural Science 2001 Question 27

Question 27

Crop Husbandry

Oil palm trees do well in soils with pH level of

  1. A.2.5 – 3.5
  2. B.3.5 – 4.5
  3. C.5.5 – 6.5
  4. D.6.5 – 7.5
Show the answer and explanation

Answer: C (5.5 – 6.5)

Explanation

Oil palm does best on slightly acid soils, around pH 5.5–6.5 (it tolerates down to about pH 4.5). Soils at pH 2.5–4.5 are too acid and pH above 7 is too alkaline for good growth.