In soil science, humus (coined 1790–1800; from the Latin humus: earth, ground) refers to the fraction of soil organic matter that is amorphous and without the "cellular structure characteristic of plants, micro-organisms or animals." Humus significantly influences the bulk density of soil and contributes to moisture and nutrient retention.
Soil formation begins with the weathering of humus.
In agriculture, humus is sometimes also used to describe mature, or natural compost extracted from a forest or other spontaneous source for use to amend soil. It is also used to describe a topsoilhorizon that contains organic matter (humus type, humus form, humus profile).
Humus is the dark organic matter that forms in the soil when plant and animal matter decays. Humus contains many useful nutrients for healthy soil, nitrogen being the most important of all.
Humification
Transformation of organic matter into humus
The process of "humification" can occur naturally in soil, or in the production of compost. The importance of chemically stable humus is thought by some to be the fertility it provides to soils in both a physical and chemical sense, though some agricultural experts put a greater focus on other features of it, such as its ability to suppress disease. It helps the soil retain moisture by increasing microporosity, and encourages the formation of good soil structure. The incorporation of oxygen into large organic molecular assemblages generates many active, negatively charged sites that bind to positively charged ions (cations) of plant nutrients, making them more available to the plant by way of ion exchange. Humus allows soil organisms to feed and reproduce, and is often described as the "life-force" of the soil.
Humus is a psychedelic band from Mexico that has been active since the late 1980s.
History
Early history
Humus was founded in 1987 by Jorge Beltran as a one man band, where he played all instruments in home recordings made through the ping pong recording technique. He chose the name "Humus" based on the earthy, humus-like sound caused by sound degradation caused by the reduction mixing. During the late 1980s and early 1990s Beltran released five cassettes, causing interest in the underground quarters of Mexico City, where there had been a long history of progressive rock.
Jose Luis Garnica, a long time friend of Jorge's and a rock connoisseur, was very much impressed by the quality of sound of these recordings, but mostly by Beltran's musicianship, so he became producer of Humus's first LP, Tus Oidos mienten in June 1992. The album finally gave recording status to Humus, and soon international reviews from the U.S., Germany, France, and in particular from Italy began to emerge, praising the new band from Mexico.
It's what she meant with open ends The scaled cracks our numbered and counting down There is no contact - so shrive away She cannot save it from herself Rather be somewhere else Rather be someone else Her judgement from the mirror meets With shut reaction Its conviction is cause to her decline The quiet touch of addicted glamour Dates the tyrant child unsatisfied a portrait's trash Attempts corruption to marvel the ovations of thoughtlessness White knuckled substance - no self-control Ghost faced smiles - cut ear to ear Strung out reprisal -dated and covered in Dope sick afternoon simplicity Hedonistic escape to shroud her symptoms decrements the ordinary She can shatter She can break - forever young The girl in the glass is one of us Hurt it more to make her yours The girl is interrupted Immense illusion can end transmission till death will she part dont do it and put it to rest
The product from the final stages of decomposition of plant residue is called humus. You can actually see humus, it’s what gives soil its dark brown color. Generally, the darker the soil, the more humus there is. Humus is essential for healthy soil.
After years of teaching gardening classes to the public and hearing their stories, one thing is clear — few folks compost correctly. This would not be a ‘big deal’ if the consequences weren’t so bad! ... .
A research team led by the Technical University of Munich (TUM) has now discovered that climate change reduces the humus content as well as the nitrogen stores in the grassland soils of the Alps and disturbs the soil structure.
However, the regulating factors of humus carbon sequestration in the boreal forests globally are not entirely understood ... The researchers showed that exchangeable Mn is essential for maintaining humus ...
It is well known that vermicompost (or earthworm humus), derived from the slow digestion of earthworms, is a universal and complete product that can improve all soil fertility components ...Earthworm humus is also allowed in organic farming.".
) The HorizonEurope HuMUS project has launched a call for proposals to support 20 pilot projects that will engage citizens in the protection and restoration of soils.
Geenta distributes humus mainly in Apulia, but also in a large part of Italy...Once harvested, the humus is brought to our plant and logistics facility, where it is naturally dried, sifted and packaged ...
Mankato Free Press
05 Jun 2024
Mankato Free Press
05 Jun 2024