Differences in Soil Microbial Diversity between Long-term Continuous Cropping and Rotation of Cherry Tomato ( Lycopersicon esulentum Mill)

Continuous cropping had negative effects on soil microbial community, while rotation was beneficial to the formation of soil microbial community diversity. However, the difference in composition and diversity of microbial communities are still unclear under two cultivation patterns of long-term cherry tomato (Lycopersicon esulentum Mill) continuous cropping and cherry tomato - rice (Oryza sativa L.) rotation. soils from rice-cherry tomato rotation for 10 years (R10) and continuous cropping cherry tomato for 10 years (C10) were selected to as study objects, and high-throughput sequencing technology was conducted to study the difference under two cultivation patterns. The main objective is to provide a theoretical basis for applying rotation measures to reduce the continuous cropping obstacles of cherry tomato from the perspective of microbial ecology. The Chao1 and ACE indices of soil fungi in C10 were significantly higher than those in R10. The Shannon index of soil bacterial community was significantly greater in C10 than in R10, but that of fungal community was significantly lower in C10 than in R10.The relative abundance of beneficial microorganisms was in the order R10 > C10. the relative abundance of Acidobacteria, Actinobacteria, Candidatus_Solibacter, Bryobacter, Bacillus, Mortierella, Trichoderma, and Penicillium etc. was significantly higher in R10 than in C10. alkali-hydrolyzed nitrogen (AN) and available P (AP) were important factors affecting the bacterial community structure, AP was an important factor affecting the fungal community structure, as indicated by significant positive correlations between the important environmental factors and bacterial and fungal community structure.