HORTICULTURE SCIENCE
MANURES AND FERTILIZERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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manures provide humus to the soil whereas fertilisers do not provide humus to the soil
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manures are rich in inorganic matter while fertilisers are not rich in inorganic matter
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manures can be stored for a long time whereas fertilisers cannot be stored for long time
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manures are prepared in factories while fertilisers are prepared in the fields
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Detailed explanation-1: -(i) Manure contains large quantities of organic matter and small quantities of nutrients. (ii) It increases the water holding capacity of sandy soil. (iii) It helps in draining out of excess of water from clayey soil.
Detailed explanation-2: -Ritesh: Fertilizers increase the water holding capacity of the soil. Abhishek: Fertilizers used in excess provide lots of humus to the soil.
Detailed explanation-3: -Organic manure or organic fertilizer is made up of organic biodegradable waste like animal excreta and agriculture wastes. As it biodegradable it cannot harm the environment and increase the soil fertility it is better than chemical fertilizer.
Detailed explanation-4: -Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. This material is called leaf litter. When animals die, their remains add to the litter.