'sucui' pear soil bacterial community

Microbial contributions to crop production have been demonstrated for a range of cropping systems. However, most researches to date have been confined to specific locations, making it difficult to define general soil microbial and abiotic characteristic underlying the yield-promotion across separated locations. This knowledge gap limits our capacity to harness soil microbiome to improve crop production. Here we used high-throughtput sequencing method to investigate the common features of bacterial composition, ecological networks and physicochemical properties in six yield-invigorating and paired-located yield-debilitating orchards. We found that yield-invigorating soils exhibited higher contents of organic matter than yield-debilitating soils and harboured unique bacterial communities. In detail, greater alpha diversity indices and higher relative abundances of Planctomycetes and Chloroflexi were observed in yield-debilitating soils. Co-occurrence network analysis result showed that yield-invigorating soils displayed a greater number of meta-modules and a higher proportion of negative interactions to positive interactions in the network. Further Chloroflexi was recognized as a keystone taxon in manipulating the interaction of bacterial community in yield-invigorating soils. Structural equation modelling result summarized that soil organic matter, beta diversity of bacterial community, network connector (Chloroflexi) were key indicators in supporting high-yield pear production. Despite differences in location and soil conditions, yield-invigorating soils across a range of locations appear to share common features, including accumulation of soil organic matter, stimulation of microbial diversity, enrichment of key taxa like Chloroflexi, and maintaining a competitive network, which could give science-based guidance for sustainable food production.