Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (5): 60-68.doi: 10.11924/j.issn.1000-6850.casb2021-0564

Special Issue: 生物技术 园艺

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Characteristics of Nutrients and Microbial Community Composition of Different Panax ginseng Cultivation Soil

WANG Yan1,2(), WANG Liwei1,2, ZHAO Hongyan3, ZHAO Min1,2(), YANG Hongyan1,2()   

  1. 1College of Life Sciences, Northeast Forestry University, Harbin 150040
    2Key Laboratory for Enzyme and Enzyme-like Material Engineering of Heilongjiang, Harbin 150040
    3College of Agronomy, Yanbian University, Yanji, Jilin 133000
  • Received:2021-05-27 Revised:2021-07-18 Online:2022-02-15 Published:2022-03-17
  • Contact: ZHAO Min,YANG Hongyan E-mail:wangyan_nefu@163.com;82191513@163.com;yanghy@nefu.edu.cn

Abstract:

To alleviate the demand for ginseng soil and accelerate the development of cultivating ginseng in farmland, nutrients and microbial population in farmland soil, forest soil and 4-year ginseng-cultivated soil were investigated. The differences among the three kinds of soil were explored to provide a basis for improving farmland soil used for cultivating ginseng. High-throughput sequencing was used for investigating the microbial diversity and composition. The results of physical and chemical analysis show that the pH of 4-year ginseng soil is the lowest, but the contents of ammonium nitrogen, available phosphorus, total nitrogen, total phosphorus and organic matter are significantly higher than those of farmland and forest soil. The results of high-throughput sequencing show that the richness and diversity of bacterial and fungal communities in farmland soil are higher than those in 4-year ginseng-cultivated soil and lower than those in forest soil. The bacteria compositions in different soil are basically similar, mainly include Proteobacteria, Acidobacteria, Actinobacteria, Chloroflexi and so on. Mortierella is the dominant genus in forest soil. Fusarium is abundant in farmland soil, and the accumulation of pathogenic bacteria Sclerotinia is detected in 4-year ginseng-cultivated soil. The analysis of db-RDA reveals that the pH, and nitrogen, phosphorus and organic matter contents could all affect the microbial community structure, and there is a stronger correlation between environmental factors and fungal community. Based on the above results, the effective improvement of farmland soil should focus on controlling fungal community.

Key words: soil, microbial community, high-throughput sequencing, environmental factors, farmland, ginseng

CLC Number: