GCEAgricultural ScienceSoil Science2024

a) Explain the term 'soil pH' and state its significance in crop production. (4 marks) b) i) Name TWO crops that grow best in acidic soils and TWO crops that grow best in alkaline soils. (4 marks) ii) State TWO effects of soil acidity on plant growth. (2 marks) c) Describe how a farmer can correct soil acidity on his farmland, stating the material used, the process, and ONE precaution to observe. (5 marks) d) State ONE effect of excess soil alkalinity on the availability of plant nutrients. (1 mark)

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