What is humus? What role it plays in soil?
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Humus significantly affects the bulk density of soil and contributes to its retention of moisture and nutrients. ... More precisely, humus is the dark organic matter that forms in soil when dead plant and animal matter (including aerobic compost) breaks down further, specifically through the action of anaerobic organisms.
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Humus is the topmost layer of the soil profile. It contains remains of dead and decaying plants and animals. The worms and microorganisms of the soil converts the dead and decaying matter into organic compounds which increases the fertility of the soil. This leads human beings to sow plants where there is a higher amount of organic compounds are present....
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