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Organic matter, organic material, or natural organic matter refers to the large source of carbon-based compounds found within natural and engineered, terrestrial, and aquatic environments. It is matter composed of organic compounds that have come from the feces and remains of organisms such as plants and animals . [ 1 ]
A portion of organic matter is not mineralized and instead decomposed into stable organic matter that is denominated "humus". [1] The decomposition of organic compounds occurs at very different rates, depending on the nature of the compound. The ranking, from fast to slow rates, is: Sugars, starches, and simple proteins; Proteins ...
[42] An example is the rhizosphere, and areas with accumulated organic matter such as the detritusphere. [43] These areas are characterized by the presence of decaying root litter and exudates released from plant roots which regulates the availability of carbon and nitrogen and in consequence modulate microbial processes.
It is a kind of soil organic matter. It is rich in nutrients and retains moisture in the soil. Humus is the Latin word for "earth" or "ground". [2] 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. [3] It is also used to ...
Soil organic matter and biological soil quality indicators after 21 years of organic and conventional farming. Agriculture, Ecosystems and Environment 118: 273-284 Professor Sir John Beddington (2013) Research project: Conservation farming - Testing the delivery of conservation schemes for farmland birds at the farm-scale during winter, in ...
Environmental Interactions: HSs contribute to detoxifying ecosystems by binding and degrading synthetic toxins (e.g., pesticides, hydrocarbons) and heavy metals (e.g., arsenic, mercury). Role in Soil Fertility: HSs are the primary components of soil organic matter. They are important for soil quality and fertility.
Dissolved organic matter is a heterogeneous pool of thousands, likely millions, of organic compounds. These compounds differ not only in composition and concentration (from pM to μM), but also originate from various organisms (phytoplankton, zooplankton, and bacteria) and environments (terrestrial vegetation and soils, coastal fringe ...
It is a source of organic matter. Soil with higher levels of organic matter are less likely to compact, which improves the soil aeration and water drainage, as well as assists in supporting soil microbial health. [31] [11] It is sometimes credited as being the most widely use organic fertilizer and by volume is the top organic amendment.