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Movement of castings through a worm bed. The second type of large-scale vermicomposting system is the raised bed or flow-through system. Here the worms are fed an inch of "worm chow" across the top of the bed, and an inch of castings are harvested from below by pulling a breaker bar across the large mesh screen which forms the base of the bed.
Vermicompost (also called worm castings, worm humus, worm manure, or worm faeces) is the end product of the breakdown of organic matter by earthworms. [60] These castings have been shown to contain reduced levels of contaminants and a higher saturation of nutrients than the organic materials before vermicomposting. [61]
Occasional topping up of organic materials may be required as these decompose and reduce in volume. The volume of worm castings increases only slowly and occasionally vermicompost needs to be removed from the vermifilter. Solids accumulate on the surface of the organic filter media (or filter packing).
Vermiponics is a soil-less growing technique that combines hydroponics with vermiculture by utilizing diluted wormbin leachate ("worm tea") as the nutrient solution [1] as opposed to the use of fish waste (as used in aquaponics) or the addition of manufactured chemicals to provide the nutrients.
Worms may multiply quickly if provided conditions are ideal. [60] [61] For example, a permaculture farm in Cuba began with 9 tiger worms in 2001 and 15 years later had a population of over 500,000. [62] The worm castings are particularly useful as part of a seed starting mix and regular fertilizer.
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Insect farming is the practice of raising and breeding insects as livestock, also referred to as minilivestock or micro stock. Insects may be farmed for the commodities they produce (like silk , honey , lac or insect tea ), or for them themselves; to be used as food , as feed , as a dye, and otherwise.
A worm cast is a structure created by worms, typically on soils such as those on beaches [1] [2] that gives the appearance of multiple worms. They are also used to ...