Question 9
Soil Fertility and Plant NutritionAn acidic soil can be neutralised by the addition of
- A.urea
- B.ammonium sulphate
- C.wood ash
- D.laterite
Show the answer and explanation
Answer: C (wood ash)
Explanation
Wood ash is alkaline (rich in potassium and calcium carbonates) so it neutralises acidity; ammonium sulphate makes soil more acidic.