Siberian Federal University

The article uses the example of artificially polluted soil to consider the effect of a urea sorbent – biological product “Unisorb-Bio” with an immobilized mixed culture of Bacillus bacteria and Trichoderma micromycetes on the biodegradation of oil, followed by phyto-control of the soil with a test culture of cress-salad. It was shown that during 9 weeks of exposure of “Unisorb-Bio” with immobilized oil-oxidizing strains, the oil content in the soil decreased by 10 times, which is 5 times higher compared to the control. The low level of soil toxicity after processing it with “Unisorb-Bio” is indicated by the results of the test control, which showed that the sowing quality (germination energy, seed germination) of cress-salad is 72.5 %. The observed sowing qualities and morphophysiological indicators give grounds to conclude that the biological product “Unisorb-Bio” with immobilized microflora is able to restore the soil even with a high level of initial contamination