The effect auto-inoculation of the soil on the change in the amount of live microbial biomass

Out of three light soils of various parameters were isolated bacteria’s, actinomycetes and fungi. Using those, autovaccines were prepared, individually for each of them. Then, in laboratory soil-conditions were given autovaccines and during incubation, samples were being taken, in which the content of biomass of living microorganisms were determined. The largest amount of biomass of living microorganisms was found in the soil from Stuchowo, the lowest in the soil from Swierzno. During the incubation of soils in the laboratory, the amount of biomass of living microorganisms decreased in soils from Stuchowo and Swierzno, while it increased in the soil from Kepica. Bioaugmentation resulted in a statistically significant increase in the amount of biomass of living microorganisms in all soils tested, reaching up to 30 % compared to non-vaccinated soil. The increase was the highest in the soil from Stuchowo and then in the decreasing order in the soils from Kepica and Swierzno.