Hermanovych O. Carbon Dioxide Emission by Soil on Various Systems of Fertilization and Liming in Opillia Agrobiogeocenosises

The research submits fundamental mechanisms of dynamics of emissive carbon dioxide streams by soil in dependence with various systems of fertilization, doses of applying lime and crop rotation crops. It also discusses transformation of humus state as well as physical, chemical, agrochemical and microbiological characteristics of light-grey forest surface gley soil depending on the durability of applying fertilizers and lime and their impact on the volumes of yields and productivity of crop rotation crops. The results of research say that carbon dioxide emission and its dynamics depend upon the system of fertilization and doses of applying lime, soils temperature and moisture. During vegetation period it changes and gets seasonal and day convulsions. The research concludes that systematic applying of N65P68K68 on light-grey forest gley soils and 10 t of manure per 1 ha on the background of CaCO3 liming on the crop rotation area (the dose is determined by 2,5 t/ha acid-main buffering) promotes higher crops yields, improves agrochemical and physically-chemical characteristics of soils, facilitates sequestration of carbon in organic matter and, correspondingly, optimizes CO2 emission streams by soil.