Give the role of manure and fertiliser in the soil.

Manures are substances added to the soil to add organic matter such as carbon. Hence, manure enhances soil fertility which is dependent on the interaction of various organisms and reactions. Fertilizers are chemical compounds. It provides specific nutrient such as nitrogen (N), phosphorus (P) and potassium (K) to the soil. Fertilizers increase crop production but it harmful for the soil and environment if it is used continuously.


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