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Verrottungsprodukt organic matter of predominantly vegetable waste such as grass, leaves, Mulch (Mainly wood waste such as branches, twigs, bark), fruit, straw, peat, Marc and weeds, and possibly even animal waste in the form of Earth-like substance. Animal waste products such as manure, slurry or farmyard manure (if any) already added in the form vorkompostierter. As a rule, but these animal substances are used as its own fertilizer. The name is (composed) from the Latin "componere" derived. Under composting or rotting (composting) is the controlled decomposition of organic matter by Microorganisms (algae, bacteria, fungi) and microorganisms (woodlice, worms) by supplying Oxygen . The structural elements (wood, cellulose, etc.) and ingredients (sugar) of the plant are reduced, which in turn serve as food for other organisms. In horticulture, agriculture and viticulture in composting is used specifically to remove organic substances and controlled quickly convert. The underlying processes of humification and mineralization of the same form Humus in the soil.
The procedure lasts one to two years. The addition of alternative rock flour increases the nutritional content. The complex chemical processes involved in composting are not yet completely clarified. It is believed that the formation of humus and fertilizer effect addition to other positive effects on soil and plants can be achieved. Among other things, this is to strengthen the plants' defenses against pathogens. The compost (humus) is introduced into the vineyard floor. The stands at the composting into its constituent parts returned then higher plant biomass in the form of various Nutrients are available. Above all, these are Potassium , Calcium (Lime), Phosphorus and Nitrogen But also the other elements. Especially in Organic Viticulture plays for the compost fertilization an important role.