Use of ash and slag from power generation in agriculture of Russia
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A practice of the global agriculture testifies that in areas with wash moisture regime it’s impossible to create high fertility of soil without liming. For example, soil in the Far East of Russia, Krasnoyarsk Region is the most acidic, has a heavy grain composition and is often overdamped. Therefore, to improve the growing conditions of crops and their nutritive conditions, it is necessary to apply ameliorants. The main chemical ameliorants of acidic soil are carbonates – limestone and dolomite. In connection with increase in price for transport services and prices for imported fertilizers attention is now paid to use of the recycled materials, including use of local ash and slag in agriculture as ameliorants and fertilizers. Moreover, in many cases there are large amounts of ash accumulated at ash disposals near operating coal- -fired TPPs. However, for using ash and slag for soil deoxidization relevant studies are to be carried out, taking into account specific properties of ash and slag materials and initial soil properties.
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