Vermicomposting
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Vermicomposting
Vermicompost (vermi-compost) is the product of the decomposition process using various species of worms, usually red wigglers, white worms, and other earthworms, to create a mixture of decomposing vegetable or food waste, bedding materials, and vermicast. This process is called vermicomposting, while the rearing of worms for this purpose is called vermiculture. Vermicast (also called worm castings, worm humus, worm manure, or worm faeces) is the end-product of the breakdown of organic matter by earthworms. These excreta have been shown to contain reduced levels of contaminants and a higher saturation of nutrients than the organic materials before vermicomposting. Vermicompost contains water-soluble nutrients and is an excellent, nutrient-rich organic fertilizer and soil conditioner.Coyne, Kelly and Erik Knutzen. ''The Urban Homestead: Your Guide to Self-Sufficient Living in the Heart of the City.'' Port Townsend: Process Self Reliance Series, 2008. It is used in gardening and su ...
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Eisenia Foetida
''Eisenia fetida'', known under various common names such as manure worm, redworm, brandling worm, panfish worm, trout worm, tiger worm, red wiggler worm, etc., is a species of earthworm adapted to decaying organic material. These worms thrive in rotting vegetation, compost, and manure. They are epigean, rarely found in soil. In this trait, they resemble ''Lumbricus rubellus''. Red wigglers are reddish-brown in color, have small rings around their body and have a yellowish tail. They have groups of bristles (called setae) on each segment that move in and out to grip nearby surfaces as the worms stretch and contract their muscles to push themselves forward or backward. ''Eisenia fetida'' worms are native to Europe, but have been introduced (both intentionally and unintentionally) to every other continent except Antarctica. ''Eisenia fetida'' also possess a unique natural defense system in their coelomic fluid: cells called coelomocytes secrete a protein called lysenin, whic ...
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Eisenia Fetida
''Eisenia fetida'', known under various common names such as manure worm, redworm, brandling worm, panfish worm, trout worm, tiger worm, red wiggler worm, etc., is a species of earthworm adapted to decaying organic material. These worms thrive in rotting vegetation, compost, and manure. They are epigean, rarely found in soil. In this trait, they resemble ''Lumbricus rubellus''. Red wigglers are reddish-brown in color, have small rings around their body and have a yellowish tail. They have groups of bristles (called setae) on each segment that move in and out to grip nearby surfaces as the worms stretch and contract their muscles to push themselves forward or backward. ''Eisenia fetida'' worms are native to Europe, but have been introduced (both intentionally and unintentionally) to every other continent except Antarctica. ''Eisenia fetida'' also possess a unique natural defense system in their coelomic fluid: cells called coelomocytes secrete a protein called lysenin, wh ...
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Permaculture
Permaculture is an approach to land management and settlement design that adopts arrangements observed in flourishing natural ecosystems. It includes a set of design principles derived using whole-systems thinking. It applies these principles in fields such as regenerative agriculture, town planning, rewilding, and community resilience. Permaculture originally came from "permanent agriculture", but was later adjusted to mean "permanent culture", incorporating social aspects. The term was coined in 1978 by Bill Mollison and David Holmgren, who formulated the concept in opposition to modern industrialized methods instead adopting a more traditional or "natural" approach to agriculture. Permaculture has many branches including ecological design, ecological engineering, regenerative design, environmental design, and construction. It also includes integrated water resources management, sustainable architecture, and regenerative and self-maintained habitat and agricultural system ...
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Vermifilter
A vermifilter (also vermi-digester or lumbrifilter) is an aerobic treatment system, consisting of a biological reactor containing media that filters organic material from wastewater. The media also provides a habitat for aerobic bacteria and composting earthworms that purify the wastewater by removing pathogens and oxygen demand. The "trickling action" of the wastewater through the media dissolves oxygen into the wastewater, ensuring the treatment environment is aerobic for rapid decomposition of organic substances. Vermifilters are most commonly used for sewage treatment and for agro- industrial wastewater treatment. Vermifilters can be used for primary, secondary and tertiary treatment of sewage, including blackwater and greywater in on-site systems and municipal wastewater in large centralised systems. Vermifilters are used where wastewater requires treatment before being safely discharged into the environment. Treated effluent is disposed of to either surface or sub ...
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Organic Fertilizer
Organic fertilizers are fertilizers that are naturally produced. Fertilizers are materials that can be added to soil or plants, in order to provide nutrients and sustain growth. Typical organic fertilizers include all animal waste including meat processing waste, manure, slurry, and guano; plus plant based fertilizers such as compost; and biosolids. Inorganic "organic fertilizers" include minerals and ash. The organic-mess refers to the Principles of Organic Agriculture, which determines whether a fertilizer can be used for commercial organic agriculture, not whether the fertilizer consists of organic compounds. Examples and sources The main organic fertilizers are, peat, animal wastes, plant wastes from agriculture, and treated sewage sludge.Heinrich Dittmar, Manfred Drach, Ralf Vosskamp, Martin E. Trenkel, Reinhold Gutser, Günter Steffens "Fertilizers, 2. Types" in Ullmann's Encyclopedia of Industrial Chemistry, 2009, Wiley-VCH, Weinheim. Minerals Minerals can be mi ...
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Earthworm
An earthworm is a terrestrial invertebrate that belongs to the phylum Annelida. They exhibit a tube-within-a-tube body plan; they are externally segmented with corresponding internal segmentation; and they usually have setae on all segments. They occur worldwide where soil, water, and temperature allow. Earthworms are commonly found in soil, eating a wide variety of organic matter. This organic matter includes plant matter, living protozoa, rotifers, nematodes, bacteria, fungi, and other microorganisms. An earthworm's digestive system runs the length of its body. An earthworm respires (breathes) through its skin. It has a double transport system made of coelomic fluid that moves within the fluid-filled coelom and a simple, closed circulatory system. It has a central and peripheral nervous system. Its central nervous system consists of two ganglia above the mouth, one on either side, connected to a nerve running along its length to motor neurons and sensory cells in each s ...
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Eisenia Hortensis
The European nightcrawler (''Dendrobaena hortensis'') is a medium-small earthworm averaging about 1.5 g when fully grown. Generally blueish, pink-grey in color with a banded or striped appearance, the tips of their tails are often cream or pale yellow. When the species has not been feeding, it is pale pink. The species is usually found in deep woodland litter and garden soils that are rich in organic matter in European countries. ''D. hortensis'' is sold primarily as a bait worm, but its popularity as a composting worm is increasing. It was considered part of '' Eisenia'' until 2003. It is also formerly considered part of the similar '' Dendrobaena veneta'', but now just part of the species complex. Both are useful compost worms. The two species are probably not distinguished in vermicomposting. In general, the ''E. hortensis'' name is more common in North America while the ''D. veneta'' name is more common in Europe. Etymology The former genus ''Eisenia'' is named after Swedi ...
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Lumbricus Rubellus
''Lumbricus rubellus'' is a species of earthworm that is related to ''Lumbricus terrestris''. It is usually reddish brown or reddish violet, iridescent dorsally, and pale yellow ventrally. They are usually about to in length, with around 95–120 segments. Their native distribution was mainland Europe and the British Isles, but they have currently spread worldwide in suitable habitats. Size and appearance ''Lumbricus rubellus'', or the "red earthworm", ranges from to in length and has smooth, reddish, semi-transparent, flexible skin segmented into circular sections. Each segment contains four pairs of setae, or bristles, and the total number of segments per matured organism ranges from 95–105.Edwards, C.A., and Lofty J.R. (1972). ''Biology of earthworms''. Halsted Press, New York, NY. The segmentation of ''Lumbricus rubellus'' identifies the organism as a member of Phylum Annelida, while the enlarged segments towards the anterior of the organism called the clitellum denote ...
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Drilosphere
The drilosphere is the part of the soil influenced by earthworm secretions, burrowing and castings. Therefore, it is the fraction of soil which has gone through the digestive tract of earthworms, or the lining of an earthworm burrow. The average thickness of the drilosphere (lining of an earthworm burrow) is 2mm, but it can be much wider (about 8mm) around the burrows of litter-feeding earthworms. Through the drilosphere, earthworms influence soil microbial communities, with effects on microbial processes related to soil organic matter and nutrient dynamics.Earthworm Ecology By Clive Arthur Edwards. 2nd Ed. 2004. CRC Press. A study of one soil type found that contained within the drilosphere was 40 per cent of the aerobic (and 13 per cent of anaerobic) nitrogen-fixing bacteria and 16 per cent of the denitrifier Denitrifying bacteria are a diverse group of bacteria that encompass many different phyla. This group of bacteria, together with denitrifying fungi and archaea, is capable o ...
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Eudrilus Eugeniae
''Eudrilus eugeniae'', also called the "African Nightcrawler", is an earthworm species native to tropical west Africa and now widespread in warm regions under vermicompost; it is an excellent source of protein and has great pharmaceutical potential. Growth Fecundity, growth, maturation and biomass production were all significantly greater at 25 °C than 15°, 20°or 30°. The growth of individual earthworms increases as the population density lowers, but the greatest overall earthworm biomass production occurs at the highest population density. The greatest number of cocoons per week and the number of hatchlings per cocoon are obtained at 25 °C. Cocoons of ''E. eugeniae'' hatched in only 12 days at 25 °C, and the worms reach sexual maturity in as little as 35 days after hatching. Etymology Named after Johan Gustaf Hjalmar Kinberg's Swedish survey ship, the ‘Eugenie’. Life cycle Throughout its life cycle, ''E. eugeniae'' grows much more rapidly than ' ...
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Epigean
Epigeal, epigean, epigeic and epigeous are biological terms describing an organism's activity above the soil surface. In botany, a seed is described as showing epigeal germination when the cotyledons of the germinating seed expand, throw off the seed shell and become photosynthetic above the ground. The opposite kind, where the cotyledons remain non-photosynthetic, inside the seed shell, and below ground, is hypogeal germination. The terms epigean, epigeic or epigeous are used for organisms that crawl (epigean), creep like a vine (epigeal), or grow (epigeous) on the soil surface: they are also used more generally for animals that neither burrow nor swim nor fly. The opposite terms are hypogean, hypogeic and hypogeous. An epigeal nest is a term used for a termite mound, the above ground nest of a colony of termites. See also * List of plant morphology terms A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * ...
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