Andjelković, SnežanaLugić, ZoranBabić, SnežanaMarković, JordanZornic, VladimirPetrović, MirjanaBekčić, Filip2025-04-072025-04-072021-09-21978-86-912877-4-0https://rifoc.ikbks.com/handle/123456789/169M 34 Саопштење са међународног скупа штампано у изводуSoil management is important to all agricultural systems and the reduction of soil degradation is a base to sustain future plants production. Physical and chemical characteristics of soil are the most important properties that affect the number of microorganisms, especially pH and organic matter content. The aim of this investigation was to examine microbiological and basic chemical properties of agricultural soils in the south-western part of Serbia. Soil samples from 62 localities of agricultural soil were taken aseptically from a depth of 0-25 cm. Based on the pH value tested soils are acidic, between 3.96 and 6.20, with medium content of humus. Results of this study showed that the presence of microorganisms in the tested soil samples is influenced by numerous factors and that each soil provides different conditions for life of microbes. The total number of microorganisms in soil samples varied from 18 to 122 x 106, the number of free-living nitrogen-fixers from 17 to 95 x 105 and fungi in the range from 3 to 55 x 104 per one gram of absolutely dry soil.enCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/soilmicroorganismsfree-living nitrogen-fixersfungiconferenceObject