Question

Both manures and fertilisers replenish soil fertility. Compare and contrast the
advantages and disadvatages of using them.​

Answer 1

Answer:

Manure Fertilizer

1. Manure is a natural or an organic substance obtained by the decomposition of plant and animal wastes. This is done by microbes, earthworms, fungus etc.

Fertilizer is a synthetic substance or an inorganic compound.

2. Low percentage of nutrients is present.

High percentage of nutrients is present.

3. Manure provides a lot of organic matter to the soil. It is slowly absorbed by the plants.

Fertilizer does not provide any humus to the soil. It is quickly absorbed by the plants.

4.Crop productivity is increased only to some certain extent.

Crop productivity is increased many folds by its use.

5. No side effects of manure are absorbed.

Chemicals in fertilisers are washed away to the nearby water bodies, causing soil and water pollution.