Question

compare the use of manures and fertilizers

Answer 1

Answer :

Manures increase soil fertility by enriching the soil with organic matter and nutrients as it is prepared by the decomposition of animal excreta and plant wastes. On the other hand, fertilizers are mostly inorganic compounds whose excessive use is harmful to the symbiotic microorganisms living in soil. Their excessive use also reduces soil fertility. Hence, fertilizers are considered good for only short term use.

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Answer 2

Manners and reach the soil with nutrients and organic matter then increase the growth of earthworms and bacteria. They are better for long term use.the excessive and continuous use can reduce the soil fertility because the organic matter in the soil is not replenished they can also harm the useful microorganisms in the soil.