Interactive effects between soil properties and bacterial communities in tomato rhizosphere under the application of microbial agents

With the application of microbial agents, microbial agent treatment (<i>Bacillus subtilis</i> (FQ_T1), <i>Trichoderma harzianum</i> (FQ_T2), <i>Bacillus amyloliquefaciens</i> (FQ_T3), <i>Verticillium thuringiensis</i> (FQ_T4), and <i>Verticillium purpureum</i> (FQ_T5)) was beneficial for improving the physicochemical properties and enzyme activity of tomato rhizosphere soil after 2 years of continuous cropping. Compared with the control FQ_CK, bacterial treatment increased the richness of bacterial communities, total number of species, and overall relative abundance of beneficial bacterial phylum and genus, to a certain extent. It had a positive impact on microbial structure and function, improved the interaction and stability of species ecological networks, and was conducive to the stability and sustainability of tomato rhizosphere soil microbial ecosystem functions.