Question

Explain how fertilizer are different from manure
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Answer 1

Answer:

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Manure is obtained by decomposition of waste products of plants, animals and other natural materials in fields which make it rich in organic matter. Fertilizers are the inorganic chemical substances that serve as source of nitrogen, phosphorus and potassium and lack organic matter.

Fertilizers are produced in factories. Since, manure consists of nutrients in small quantities, large servings of manure is required by plants. On the other hand, being rich in nutrients, fertilizers are required in small quantities. Being organic in nature, manures are ecofriendly while wash off of fertilizers to water bodies causes water pollution. Excessive use of fertilizers also makes the soil infertile.

Answer 2

Difference between fertilizers and manures-

Manure-

$\implies$ Manure is a natural substance obtained by the decomposition of cattle dung and plant residues.

$\implies$ Manure can be prepared in the field.

$\implies$ Manure provides a lot humus to the soil.

$\implies$ Manure is relatively less rich in plant nutrients.

Fertilizers-

$\implies$ Fertilizer is a man- made inorganic salt.

$\implies$ Fertiliser is prepared in factories.

$\implies$ Fertilizer doesn't provide any humus to the soil.

$\implies$ Fertilizers are very rich in plant nutrients like nitrogen, phosphorus and potassium.

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