Effects of adding Pseudomonas koreensis CLP⁃7 on soil quality and soil microbial community functional diversity in continuous cropping tobacco fields

Aiming to the soil acidification and serious root disease of tobacco caused by continuous cropping, this study investigated the roles of Pseudomonas koreensis CLP⁃7 in soil pH, nutrients, enzyme activity and soil microbial community diversity of acidified rhizosphere soil of tobacco. The experiments were carried out in the field. The effects of pH, content of nutrients, soil enzyme activity were determined by chemical methods. The study of soil microbial community diversity was