Question

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

Answer 1

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• Manure improves the soil quality with added nutrients.

• Manure provides extra organic matter called humus to the soil and therefore increasing the water retention capacity of sandy soils and drainage in clayey soil.

• Manures reduces soil erosion.

• They provide food for soil friendly bacteria which are helpful in growing crops.

Effects of fertilizers are:

• Fertilizers make the soil to become too dry and powdered and rises rate of soil erosion.

• The organic matter decreases by decreasing the porosity of soil hence, the plant roots do not get oxygen properly.

• The nature of soil changes either to basic or acidic.