Journal of Integrative Agriculture ›› 2015, Vol. 14 ›› Issue (11): 2309-2318.DOI: 10.1016/S2095-3119(15)61118-2

• 论文 • 上一篇    下一篇

Anaerobic soil disinfestation: A chemical-independent approach to pre-plant control of plant pathogens

 S L Strauss, D A Kluepfel   

  1. USDA-ARS Crops Pathology and Genetics Research Unit, University of California, Davis, CA 95616, USA
  • 收稿日期:2015-03-23 出版日期:2015-11-08 发布日期:2015-11-12
  • 通讯作者: D A Kluepfel, Tel: +1-530-7521137,Fax: +1-530-7547195, E-mail: daniel.kluepfel@ars.usda.gov
  • 作者简介:S L Strauss, E-mail: sarah.strauss@ars.usda.gov;
  • 基金资助:

    This work was supported by the California Department of Food and Agriculture Fruit Tree, Nut Tree, and Grapevine Improvement Advisory Board, USA.

Anaerobic soil disinfestation: A chemical-independent approach to pre-plant control of plant pathogens

 S L Strauss, D A Kluepfel   

  1. USDA-ARS Crops Pathology and Genetics Research Unit, University of California, Davis, CA 95616, USA
  • Received:2015-03-23 Online:2015-11-08 Published:2015-11-12
  • Contact: D A Kluepfel, Tel: +1-530-7521137,Fax: +1-530-7547195, E-mail: daniel.kluepfel@ars.usda.gov
  • About author:S L Strauss, E-mail: sarah.strauss@ars.usda.gov;
  • Supported by:

    This work was supported by the California Department of Food and Agriculture Fruit Tree, Nut Tree, and Grapevine Improvement Advisory Board, USA.

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摘要： Due to increasing regulations and restrictions, there is an urgent need to develop effective alternatives to chemical-dependent fumigation control of soilborne pests and pathogens. Anaerobic soil disinfestation (ASD) is one such alternative showing great promise for use in the control of soilborne pathogens and pests. This method involves the application of a carbon source, irrigation to field capacity, and covering the soil with a plastic tarp. While the mechanisms of ASD are not completely understood, they appear to be a combination of changes in the soil microbial community composition, production of volatile organic compounds, and the generation of lethal anaerobic conditions. The variety of materials and options for ASD application, including carbon sources, soil temperature, and plastic tarp type, influence the efficacy of pathogen suppression and disease control. Currently, both dry (e.g., rice bran) and liquid (e.g., ethanol) carbon sources are commonly used, but with different results depending on environmental conditions. While solarization is not an essential component of ASD, it can enhance efficacy. Understanding the mechanisms that mediate biological changes occurring in the soil during ASD will facilitate our ability to increase ASD efficacy while enhancing its commercial viability.

关键词: anaerobic soil disinfestation , biological soil disinfestation , soilborne pathogens , fumigation

Abstract: Due to increasing regulations and restrictions, there is an urgent need to develop effective alternatives to chemical-dependent fumigation control of soilborne pests and pathogens. Anaerobic soil disinfestation (ASD) is one such alternative showing great promise for use in the control of soilborne pathogens and pests. This method involves the application of a carbon source, irrigation to field capacity, and covering the soil with a plastic tarp. While the mechanisms of ASD are not completely understood, they appear to be a combination of changes in the soil microbial community composition, production of volatile organic compounds, and the generation of lethal anaerobic conditions. The variety of materials and options for ASD application, including carbon sources, soil temperature, and plastic tarp type, influence the efficacy of pathogen suppression and disease control. Currently, both dry (e.g., rice bran) and liquid (e.g., ethanol) carbon sources are commonly used, but with different results depending on environmental conditions. While solarization is not an essential component of ASD, it can enhance efficacy. Understanding the mechanisms that mediate biological changes occurring in the soil during ASD will facilitate our ability to increase ASD efficacy while enhancing its commercial viability.

Key words: anaerobic soil disinfestation , biological soil disinfestation , soilborne pathogens , fumigation