Effects of a novel bio-organic fertilizer on the composition of rhizobacterial communities and bacterial wilt outbreak in a continuously mono-cropped tomato field

Abstract Continuous cropping practice in tomato leads to an outbreak of the destructive soilborne disease bacterial wilt (BW). In this study, an integrated microbiome agent (IMA) was produced as organic fertilizer to improve successive crop soil and suppress tomato BW. Three treatments were established: IMA, organic fertilizer (OF), and control (CK, without the application of IMA or OF). Compared to CK and OF, the treatment of IMA significantly improved the growth of tomato plants and reduced the disease severity index (DSI) of tomato BW (P