浙江农业学报 ›› 2023, Vol. 35 ›› Issue (3): 639-646.DOI: 10.3969/j.issn.1004-1524.2023.03.17

• 环境科学 • 上一篇    下一篇

不同土壤消毒方式对土壤真菌多样性和群落结构的影响

朱诗君1(), 王丽丽1, 金树权1,*(), 周金波1, 汪峰1, 卢晓红2   

  1. 1.宁波市农业科学研究院,浙江 宁波 315101
    2.中国农业科学院 植物保护研究所,北京 100193
  • 收稿日期:2022-01-29 出版日期:2023-03-25 发布日期:2023-04-07
  • 通讯作者: *金树权,E-mail:jinshuq@126.com
  • 作者简介:朱诗君(1991—),男,浙江温州人,博士,助理研究员,主要从事农用微生物资源的开发与应用研究。E-mail:1227935418@qq.com
  • 基金资助:
    宁波市农科院-中国农科院科技合作创新工程(2019CXG003);宁波市公益类科技计划(20211JCGY020348)

Effects of different soil disinfection methods on soil fungal diversity and community structure

ZHU Shijun1(), WANG Lili1, JIN Shuquan1,*(), ZHOU Jinbo1, WANG Feng1, LU Xiaohong2   

  1. 1. Ningbo Academy of Agricultural Science, Ningbo 315101, Zhejiang, China
    2. Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2022-01-29 Online:2023-03-25 Published:2023-04-07

摘要:

以重度连作障碍设施草莓大棚为研究对象,比较分析高温闷棚(T1)、生石灰消毒(T2)、石灰氮消毒(T3)、棉隆消毒(T4)4种土壤消毒方式对土壤真菌多样性和土壤真菌群落结构的影响。结果表明,与对照(CK)相比,不同土壤消毒处理的土壤真菌多样性均有不同程度的降低,α多样性各项指标的降幅从高到低依次为T4>T3>T2>T1。对于土壤优势真菌属(相对丰度>1%)而言,与CK相比,4个土壤消毒处理下,镰刀菌属(Fusarium)、梭孢壳属(Thielavia)、被孢霉属(Mortierella)、轮枝菌属(Verticillium)、枝顶孢霉属(Acremonium)的相对丰度皆下降,而毛壳菌属(Chaetomium)与青霉属(Penicillium)的相对丰度皆上升。根据不同消毒方式对土壤真菌多样性和土壤真菌群落结构的影响,消毒效果最好的为棉隆消毒,其次为石灰氮消毒,考虑到经济成本,建议选择石灰氮消毒。

关键词: 连作障碍, 土壤消毒, 真菌多样性, 群落结构

Abstract:

In the present study, strawberry greenhouse with severe continuous cropping obstacles was used as the research object, the effects of four soil disinfection methods of high temperature control (T1), quicklime disinfection (T2), calcium cyanamide disinfection (T3), and dazomet disinfection (T4) on soil fungal diversity and soil fungal community structure were compared. It was shown that the soil fungal diversity under different soil disinfection methods were reduced to varying degrees as compared with the control (CK), and various alpha diversity indexes decreased as T4>T3>T2>T1. For soil dominant fungi at genus level (relative abundance>1%), the relative abundance of Fusarium, Thielavia, Mortierella, Verticillium and Acremonium were decreased under four soil disinfection treatments compared with CK, while the relative abundance of Chaetomium and Penicillium were increased. According to the impact of soil disinfection methods on soil fungal diversity and soil fungal community structure, the performance of dazomet disinfection was the best and was followed by calcium cyanamide disinfection. Given the economic cost, calcium cyanamide disinfection was a preferable choice.

Key words: continuous cropping obstacles, soil disinfection, fungal diversity, community structure

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