Effects of microbial organic fertilizers on Astragalus membranaceus growth and rhizosphere microbial community

Abstract Purpose The application of excessive chemical fertilizers during the cultivation Astragalus membranaceus leads to a decline in quality this medicinal plant as well soil’s sustainable productivity. In study, we developed special microbial organic fertilizer for A. and investigated its effects on growth rhizosphere communities. Methods root biomass main active components different stages were measured assess impacts manure growth. Meanwhile, 16S rRNA ITS1 amplicons amplified high-throughput sequencing was performed detect dynamic Result results demonstrated that significantly increased wet dry weights seedlings accumulation two effective (flavonoids saponin) bacterial treatment groups are significant higher than control group. Research flora shows number polymorphism bacteria fungi decreased after rapid period then gradually with seedling community structure regulated fertilizer, beneficial enriched. Functional profiles prediction showed shifts metabolic functions impacting KEGG pathways related metabolism biosynthesis. Conclusion indicate can improve by providing appropriate nutrients regulating which has good potential ecological .