Effects of Intercropping Pinto Peanut between Sisal Lines on Soil Microbial Community
In order to explore the influence of intercropping flat peanut on the soil quality of sisal garden,field experiments were conducted on single-cropping and intercropping flat peanut in sisal garden to study the nutrients and soil microbial community of different planting patterns,so as to provide theoretical basis for light and sim-plified cultivation of sisal garden.The relative abundance of Actinomycetes increased significantly,while that of Enterobacteriaceae decreased significantly in the back-door intercropping level bacterial community.At the phy-lum,intercropping significantly increased the relative abundance of Ascomycota and Rozellomycoat in fungal communities.Correlation analysis and RDA analysis showed that soil microbial community was mainly affected by pH,TN,SOM and NO3--N.According to the bacterial function prediction of Tax4Fun,the functional groups of carbohydrate metabolism,amino acid metabolism,membrane transport,translation,replication and repair and energy metabolism are the main functional groups of the two modes.The functional prediction by using FunGuild microecological tools showed that plant pathogens-soil saprophytic-wood saprophytic fungi and plant pathogenic fungi were significantly improved after intercropping.Intercropping peanut significantly improved soil nutrient status,diversity of soil microbial community,lipid metabolism and genetic information processing ability of bacterial community,and increased disease prototype,saprophytic and lichen fungi groups,which significantly improved the soil quality of single-cropping sisal,contributed to the healthy growth of sisal,and provided scientific basis for light and simplified cultivation techniques of sisal in sisal garden.
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