Abstract
<jats:p>Goal. To investigate the effectiveness of multicomponent bioinoculation in the form of combined consortia of fungi and bacteria, as well as their combinations, in suppressing certain pathogenic microorganisms that cause mycoses and in improving soil biological activity in raspberry (Rubus idaeus L.) cultivation. Methods. The study was conducted using field, microbiological, morphometric and statistical methods. The study focused on multicomponent microbial consortia comprising indigenous strains of mycorrhizal fungi (Glomus spp., Trichoderma spp.) and bacteria (Agrobacterium radiobacter). The effect of these consortia on soil biological and antifungal activity was evaluated. Experimental data on inoculation with complexes of microorganisms No. 1, No. 2, No. 3 and No. 4 were compared with control data (without inoculation) and reference data (the biological preparation ‘Bionorma Trichoderma’). The Ukrainian raspberry variety ‘Vognik’ was used in the studies. Field studies were conducted at the experimental site of the Institute of Agrobiology LLC (Zhytomyr region). Soil samples were selected, and all microbiological studies were conducted using standard methods. Results. Using both binary and ternary bacterial-fungal consortia increased soil biological activity, particularly carbon dioxide emissions and microbial biomass content. High values of these parameters indicate active microbiological processes and the effective functioning of the microbiocenosis compared to the control and reference samples. The use of two-component compositions of antagonist microorganisms was found to be effective against fungal pathogens, such as Fusarium and Botrytis, at the level of a commercial biological product. Conclusions. The results obtained confirm the feasibility of using multicomponent microbial consortia to protect raspberry plants biologically and maintain soil ‘health’ in ecological farming systems. These data could be used to enhance biological plant protection systems for R. idaeus L. and to restore the microbiological balance of soils.</jats:p>