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Soil steam sterilization (soil steaming) is a farming technique that sterilizes soil with steam in open fields or greenhouses. Pests of plant cultures such as weeds, bacteria, fungi and viruses are killed through induced hot steam which causes their cell structure to physically degenerate. Biologically, the method is considered a partial disinfection. Important heat-resistant, spore-forming bacteria survive and revitalize the soil after cooling down. Soil fatigue can be cured through the release of nutritive substances blocked within the soil. Steaming leads to a better starting position, quicker growth and strengthened resistance against plant disease and pests. Today, the application of hot steam is considered the best and most effective way to disinfect sick soil, potting soil and compost. It is being used as an alternative to bromomethane, whose production and use was curtailed by the Montreal Protocol. "Steam effectively kills pathogens by heating the soil to levels that cause protein coagulation or enzyme inactivation."〔(EPA ) Steam as an Alternative to Methyl Bromide in Nursery Crops〕 ==Benefits of soil steaming== Soil sterilization provides secure and quick relief of soils from substances and organisms harmful to plants such as: * Bacteria * Viruses * Fungi * Nematodes and * Other Pests Further positive effects are: * All weed and weed seeds are killed〔Research report of DLR Rheinlandpfalz, September 2010: (Weed control in seed cultures, especially arugula'' ), Author: Dr. Norbert Laun, Institute "Queckbrunnerhof", Schifferstadt (Germany). Viewed on 14. February 2011.〕 * Significant increase of crop yields * Relief from soil fatigue through activation of chemical – biological reactions 〔Research report of DLR Rheinlandpfalz, Januar 2012: (Test Report Soil Fatigue'' ), Author: Gerhard Baab, Rheinbach (Germany). Viewed on 19. January 2012.〕 * Blocked nutritive substances in the soil are tapped and made available for plants * Alternative to Methyl Bromide and other critical chemicals in agriculture 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Soil steam sterilization」の詳細全文を読む スポンサード リンク
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