Effects of biochar combined with Bacillus sp. P1 on tomato growth and rhizosphere bacteria community

Soil sickness is a prominent issue in facility vegetable cultivation. Plant growth-promoting rhizobacteria has the ability to mitigate the soil sickness of vegetables and enhance plant development. The impact of introducing helpful bacteria to the soil for colonization is frequently suboptimal. Scientific research suggests that biochar can facilitate the colonization of external beneficial microorganisms. A pot experiment was conducted to to investigate the impact of combining biochar and Bacillus sp. P1 on tomato development and rhizosphere bacteria. Utilizing biochar and Bacillus sp. P1, either individually or in combination, can enhance the growth of tomato plants. Soils added biochar and Bacillus sp. P1 had a promoting effect on tomato growth. The high-throughput amplicon sequencing showed that biochar combined with Bacillus sp. P1 reduced the bacterial alpha diversity, changed the microbial community structure, and increased the abundance of potentially beneficial microorganisms, such as Sphingobium. Our research findings indicated that utilizing biochar combined with Bacillus sp. P1 can effectively address soil sickness and enhance the growth of tomatoes in an environmentally sustainable manner.