EJSSEurasian Journal of Soil ScienceEurasian J Soil Sci2147 - 4249Federation of Eurasian Soil Science Societieshttp://ejss.fesss.org/10.18393/ejss.0709310.18393/ejss.07093Effect of bio-fertilizers application on microbial diversity and physiological profiling of microorganisms in arable soilSoňa Javoreková sona.javorekova@uniag.skJana Maková Juraj Medo Silvia Kovácsová Ivana Charousová Ján Horák 4154 - 612014-06-132014-11-222014-12-092015-01-01 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies In laboratory assay, the diversity of bacteria and microscopic fungi and the community-level physiological profiling (CLPP) of microorganisms were observed after the addition of bio-sludge (40 t.ha-1) from a biogas station and addition of bio-fertlizers - AZOTER (10 dm-3.ha-1) to the arable soil with PCR-DGGE and BIOLOG® method (Eco Plates). The differences were recorded in the microbial diversity (bacteria and microscopic fungi) among variants according to the Shannon index. The differences in community of microscopic fungi were markedly higher among the soil samples with the additions of both bio-fertilizers compared to control soil samples. The occurrence of individual OTUs (operational taxonomic units) bacteria and microscopic fungi were different after 105 days of incubation from the status after the 1st day of incubation. The community metabolic diversity (CMD) was influenced by the incubation time (105 days) as well, but not by application of bio-fertilizers. We observed a significant decrease (LSD test, P Bio-fertilizers, microbial diversity, microbial physiological profiling, arable soil