Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 1
Written by Sorin MATEI, Gabi Mirela MATEI, Sorina DUMITRU, Victoria MOCANU
The aim of the research was to evaluate the role of the microbial composition of synthetic microbiomes for soil carbon evolution. The microbiomes inoculated into the soil (M1-M9) release exometabolites that influence the transport of nutrients in the soil and the dynamics of the energy potential. Thus, after the inoculation of microbiomes in the soil, the biosynthesized metabolites, the influence on some biological parameters and on the dissolved organic carbon, released after 60 days in the soil, were analyzed. Bacterial microflora growth rate of up to 54% was determined when using M4 and M5 microbiome. Microbiomes M1 and M5 containing bacteria with antagonistic characteristics (Bacillus sp.) and hyperparasitic fungi (Trichoderma sp.) caused up to 32% increases in the microflora. Biomass induced by microbiome M4 reached values up to 354mg C x kg-1 soil. Microflora from each microbiome influenced differently the distribution of the fluorescent dissolved organic carbon from soil fulvic subfraction.
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