Journal of Agricultural Science and Technology ›› 2025, Vol. 27 ›› Issue (1): 233-240.DOI: 10.13304/j.nykjdb.2023.0234

• BIO-MANUFACTURING & RESOURCE AND ECOLOGY • Previous Articles    

Effects of Different Types of Rice Straw Addition on Soil Microbial Communities Under Continuous Tobacco Cropping

Chengliang XIONG1(), Qingfu ZHANG1, Weiyuan YAO1, Tao XIA1, Qingping XU2, Xixin ZHOU3, Yi ZHANG3, Lijuan CHEN4, Liu YANG1()   

  1. 1.Ningxiang Branch,Changsha Municipal Tobacco Company,Hunan Procincial Tobacco Corporation,Changsha 410000,China
    2.Hunan Tobacco Staff Training Center,Hunan Xiangtan 411101,China
    3.College of Biological Science and Technology,Hunan Agricultural University,Changsha 410000,China
    4.College of Agriculture,Hunan Agricultural University,Changsha 410128,China
  • Received:2023-03-28 Accepted:2023-07-26 Online:2025-01-15 Published:2025-01-21
  • Contact: Liu YANG

添加不同类型水稻秸秆对植烟连作土壤微生物群落的影响

熊橙梁1(), 张庆富1, 姚未远1, 夏滔1, 许庆平2, 周喜新3, 张毅3, 陈丽鹃4, 杨柳1()   

  1. 1.湖南省烟草公司长沙市公司宁乡市分公司,长沙 410600
    2.湖南省烟草职工培训中心,湖南 湘潭 411101
    3.湖南农业大学生物科学技术学院,长沙 410000
    4.湖南农业大学农学院,长沙 410128
  • 通讯作者: 杨柳
  • 作者简介:熊橙梁 E-mail:39140871@qq.com
  • 基金资助:
    湖南省烟草公司长沙市公司科技项目(20-22A07);湖南省教育厅资助科研项目(20A230);湖南省教育厅优秀青年科学研究项目(21B0185)

Abstract:

In order to study the effects of adding different types of rice straw on soil bacterial communities under continuous cropping of flue-cured tobacco, fresh rice straw (FS) and rotted rice straw (RS) were added in soil, with no straw as control (CK). The community composition and diversity of soil bacteria and fungi at different times (0, 7, 30, 60 and 90 d) under 3 treatments were studied by high-throughput sequencing. The results showed that fresh rice straw and rotted rice straw could significantly improve the diversity and richness of soil microbial community. After 90 d in FS and RS treatments, the Chao 1 index, Shannon index and Simpson index of bacteria and the Chao 1 index of fungi were significantly improved. The analysis of community structure composition showed that FS and RS treatments increased the relative abundances of Proteobacteria, Spirochaetes and Verrucomicrobia. FS treatment increased the relative abundance of Basidiomycota, and decreased the relative abundances of Chytridiomycota and Rozellomycota. RS treatment increased the relative abundances of Ascomycota and Basidiomycota, and decreased the relative abundances of Zygomycota and Chytridiomycota. In summary, the addition of fresh rice straw and rotted rice straw could change the community composition of soil bacteria and fungi, improve the health status of soil with continuous cropping of flue-cured tobacco. Compared with rotted rice straw treatment, fresh rice straw treatment increased the abundance of pathogenic fungi.

Key words: rice straw, straw return, microbial community, continuous cropping soil of flue-cured tobacco, Illumina MiSeq sequencing

摘要:

为研究添加不同类型水稻秸秆对烤烟连作土壤细菌群落的影响,以无添加土壤为对照(CK),分别添加新鲜水稻秸秆(FS)和腐熟水稻秸秆(RS),利用高通量测序分析3种处理下不同时间(0、7、30、60、90 d)土壤细菌和真菌的群落组成及多样性。结果表明,新鲜水稻秸秆和腐熟水稻秸秆能够显著提高土壤微生物群落的多样性和丰富度。FS和RS处理90 d后显著提高了土壤细菌的Chao1指数、Shannon指数和Simpson指数及真菌的Chao1指数。群落结构组成分析表明,FS和RS处理提高了变形菌门(Proteobacteria)、螺旋体门(Spirochaetes)和疣微菌门(Verrucomicrobia)的相对丰度;其中FS处理还增加了担子菌门(Basidiomycota)的相对丰度,降低了壶菌门(Chytridiomycota)和罗兹菌门(Rozellomycota)的相对丰度;RS处理增加了子囊菌门(Ascomycota)和担子菌门(Basidiomycota)的相对丰度,降低了结合菌门(Zygomycota)和壶菌门(Chytridiomycota)的相对丰度。综上所述,添加新鲜水稻秸秆和腐熟水稻秸秆均能改变土壤细菌和真菌的群落构成,改善植烟连作土壤的健康状态。相较于添加腐熟水稻秸秆处理,添加新鲜水稻秸秆处理会导致致病性真菌丰度的增加。

关键词: 水稻秸秆, 秸秆还田, 微生物群落, 植烟连作土壤, Illumina MiSeq测序

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