difference between humus and manure
Answers
Humus
In soil science, humus (derived in 1790–1800 from the Latin humus for earth, ground) denominates the fraction of soil organic matter that is amorphous and without the "cellular cake structure characteristic of plants, micro-organisms or animals." Humus significantly affects the bulk density of soil and contributes to its retention of moisture and nutrients.
In agriculture, "humus" sometimes also is used to describe mature or natural compost extracted from a woodland or other spontaneous source for use as a soil conditioner. It is also used to describe a topsoil horizon that contains organic matter (humus type, humus form, humus profile).
Manure
Manure is organic matter, mostly derived from animal feces except in the case of green manure, which can be used as organic fertilizer in agriculture. Manures contribute to the fertility of the soil by adding organic matter and nutrients, such as nitrogen, that are utilised by bacteria, fungi and other organisms in the soil. Higher organisms then feed on the fungi and bacteria in a chain of life that comprises the soil food web.
In the past, the term "manure" included inorganic fertilizers, but this usage is now very rare.
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Answer:
Manure is an organic matter composed of animal feces, wasted feed, etc. It is used as fertilizer to increase the fertility of soil. ... Humus refers to organic matter that has reached a point of stability, where no further breakdown will take place and might, if conditions do not change, remain as it is for centuries.