Transformation of the ordinary chernozem organic matter under the influence of fertilizers

The research results on fertilizer influence on the intensity of ordinary chernozem organic matter transformation process are given in the article. It is shown that vermicompost adding into soil increases CO 2 release in 3-4 times compared to control variant, depending on fertilizer dose. Reliable increase of C hum availability in soil when using vermicompost dose which is equivalent to N120 is revealed. The use of mineral fertilizers alone leads to destructive changes of humus sustainable forms.