Transformation of organic compounds of carbon and nitrogen of agrochernozems in the conditions of transition to waste-free processing technologies in the Krasnoyarsk forest-steppe

Abstract

The influence of dump and non-dump tillage techniques on the transformation of mobile organic compounds of carbon and nitrogen in the conditions of the forest-steppe zone of theKrasnoyarskTerritory has been studied.The influence of the ratio of the content of easily mineralized carbon and nitrogen on this process is estimated.The value of theC:Nratio in the soil of the studied variants indicated an average level of nitrogen enrichment of humus.TheC:Nvalues for mobile forms of carbon and nitrogen had a broader relationship in the soil treated with the use of waste-free technologies.Strong correlations were found betweenC0.1NaOHand theC:Nratio in the soil.Under the conditions of application of dump processing technology, an increase in the provision of soil with active organic matter made it possible to stimulate the nitrogen mineralizing ability with the accumulation of ammonium nitrogen compounds.When using non-waste treatments, similar dependencies were found with the content of nitrate nitrogen compounds.The values ofСmbinСorg(%) indicated a weak biogenicity of the studied soil.There was no differentiation between the layers in terms of the rate of carbon dioxide emission.