Question 1

Compare the use of manure and fertilizers in maintaining soil fertility.

Answer

Manure contains large quantities of organic matter and also supplies small quantities of nutrients to the soil. Manure is prepared by the decomposition of animal excreta and plant wate. On the other hand, fertilizers are commercially produced plant nutrients. Fertilizers supply nitrogen, phosphorus and potassium. They are used to ensure good vegetative growth giving rise to healthy plants. Fertilizers are a factor in the higher yields of high cost farming.

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Fig. 8.11

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Compare the use of manure and fertilizers in maintaining soil fertility.

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