Change of biological properties of North Azov chernozem ordinary at pollution by modern biocides

Change of biological properties (3, 30, 90 days) of the chernozem ordinary at pollution by modern biocides (antibiotics, pesticides) in concentration of 500 mg/kg of the soil is considered. Pollution of the chernozem biocides leads to depression of number of microorganisms and enzymatic activity of soils. The correlation analysis of the obtained data taped positive correlation of enzymes of two classes (dehydrogenase, invertase) with a number of micromycetes (r=0,63, r=0,65), catalases with ammonifying bacteria (r=0,73). These results allow to judge a contribution of this or that group of microorganisms to enzymatic pool of soils. Separate parameters of biological properties aren't restored also 90 days later after pollution.