Impact of Litsea cubeba inter-row cover on the structure of bacterial community in the tea plantation

Abstract Purpose The application of bio-control plants in the agricultural processes is one effective ways to solve traditional synthetic pesticide residues. This study will investigate effect plant Litsea cubeba branch inter-row cover on soil bacterial community, soil-enriched metabolites, and mineral nutrition tea plantation, which provide a basis for use agroecological farming systems. Methods fruit-bearing (F-Pr) vegetative (F-Ab) branches were covered (the partial coverage between rows) plantation. And we determined microbial nutriment, metabolites composition with methods 16S rRNA gene sequencing, inductively coupled plasma-atomic emission spectroscopy (ICP-AEC), plasma-optical spectrometry (ICP-OES), gas chromatography-mass (GS-MS). We also predict function bacteria Tax4Fun software. Results modified structure diversity; significantly decreased relative abundance Acidobacteria , Chloroflexi Planctomycetes while increased Proteobacteria. antagonized pathogen its OTUs number from 907 ± 81 control 337 25 F-Pr treatment; compared treatment, F-Ab treatment had weaker metabolism transport, carbohydrate utilization, nitrate reduction A. aluminum element was reduced, phosphorus increased. contained some antibacterial substance, including 14.2 3.32% citronellol, 10.38 4.79% alpha-terpineol, 8.25 2.62% (+)-2-bornanone, main environment factor that affects diversity. Conclusion affected diversity, slightly pH, improved status; major affecting community should be considered plants; feasible measure integrated pest management