THE USE OF BIOSEPT 33 SL, BIOCHIKOL 020 PC AND POLYVERSUM TO CONTROL SOYBEAN (Glycine max (L.) Merrill) DISEASES AGAINST PATHOGENS. PART II. MICROORGANISM COMMUNITIES IN THE RHIZOSPHERE SOIL OF SOYBEAN

Abstract

The purpose of the studies was to determine the effect of such preparations as Biochikol 020 PC, Polyversum and Biosept 33 SL on the formation of microorganisms communities in the rhizosphere soil of soybean. Results of the studies pointed to a positive effect of biopreparations on the increase number of cfu total bacteria, Bacillus spp. and Pseudomonas spp. After the application of biopreparations balance between pathogens and saprobionts was maintained in the rhizosphere soil of soybean. Such relation did not exist after using chemical preparations. Biopreparations increased the number of antagonistic bacteria – Bacillus spp., Pseudomonas spp. and fungi – Gliocladium spp., Trichoderma spp.

Keywords

• microorganism communities
• rhizosphere soil
• antagonistic bacteria
• antagonistic fungi