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Crop Production and Management
Explain how fertilisers are different from manure.
Fertilizers are chemicals prepared in factories. They are rich in particular nutrients. The use of fertilizers gives a better yield but excessive use of them is harmful to the soil in long run. Example: Urea, ammonium sulphate, superphosphate, NPK (Nitrogen, phosphorous, and potassium), and potash.
Manure is the organic substances prepared from plant and animals wastes by composting or vermicomposting. It increases the water-holding capacity of the soil. It makes the soil porous which help in the exchanges of gases. It also increases the number of microbes in the soil which are soil friendly and release humus to the soil.
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