Question

What are fertilizers ? Mention any four fertilizers between manure and fertilizers.​

Answer 1

Explanation:

Fertilizers are inorganic substances manufactured in factories. Manures are relatively less rich in plant nutrients, they only remove general deficiency of soil. Fertilizers are very rich in plant nutrients like NitrogenN, Phosphorus P, Potassium K. They add humus to soil by providing organic substances and nutrients.

Answer 2

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Fertilizers are chemical substances supplied to the crops to increase their productivity. These are used by the farmers daily to increase the crop yield. The fertilizers contain the essential nutrients required by the plants, including nitrogen, potassium, and phosphorus.

1)It is a natural substance obtained by decomposition. 2)A manure is not very rich in essential plant nutrients. 3)A manure provide a lot of humus to the soil. 4)A manure is absorbed slowly by the plant .

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