Published in Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1
Written by Alexandra GHEORGHIȚǍ, Vlad STOIAN, Bianca POP, Roxana VIDICAN
The application of fertilizers and amendments in agroecosystems is a necessary management strategy to sustain crop productivity, but in the long term it causes changes in soil microbiomes. The aim of the research was to analyze in detail the changes on decomposition functional microbiome induced by both types of inputs in a long-term experiment. The functional microbial associations were analyzed using the DEMSA tool, for each of the experimental variants being extracted the segments of the ecological niche: intensification, expansion, narrowing and contraction. The functional
alteration varied greatly ranging between 0.4% and 26.7%, with most of the communities showing a dominance of carbohydrates guilds (intensification and narrowing niche) and carboxylic acids (expansion and contraction niche). Within the communities, the dominant groups were associated mostly with amendments for the activities that exceeded the control. In contrast, the reduction of activities within the microbiomes was correlated with the applied fertilizers. Each of the analyzed microbiome segments presented a specific pattern of dominance-codominance of functional guilds and groups that were associated with the synergic impact of long-term applied amendments and fertilizers.
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{simplepopup popup="false" name="Citation4"}GHEORGHITǍ A., STOIAN V., POP B., VIDICAN R. 2026, FUNCTIONAL ALTERATION AND DOMINANCE-CODOMINANCE PATTERNS IN DECOMPOSITION FUNCTIONAL MICROBIOMES FROM LONG-TERM FERTILIZED AND AMENDED EXPERIMENTS. Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1, ISSN 2285-5785, 38-49. {/simplepopup}