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<p>As a multifunctional soil conditioner, biochar has demonstrated significant potential for sustainable plant disease suppression. The core mechanism of plant disease control involves the effective regulation of soil microbial communities. However, systematic research and analysis of this mechanism remain incomplete and dispersed. The aim of this review is to systematically analyze the specific mechanism by which biochar suppresses plant diseases through the regulation of soil microbial communities. The disease suppression efficacy of biochar is influenced by numerous factors, including biochar preparation conditions, biochar application practices, and plant-pathogen types, and this review further explores how these factors influence disease suppression through their effects on soil microbial regulation. Furthermore, specific parameters from relevant studies are systematically categorized to provide theoretical support for enhancing the disease control efficacy of biochar and promoting its application. This review synthesizes a mechanistic understanding of biochar-mediated disease suppression, and summarizes the impact of key parameters on suppression rates, thereby offering a practical reference for optimizing biochar application.</p> Graphical Abstract <p></p>

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Review of Biochar in Plant Disease Control through Regulating Soil Microbial Community Structure: Mechanisms, Influencing Factors, and Efficiency

  • 期刊论文

  • 发表日期：

    2026年6月26日

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  • Shuo Zhang,
  • Jianli Jia,
  • Hongxin Guan,
  • Yichi Ma,
  • Bing Xiao,
  • Haokun Yuan,
  • Yequan Wang,
  • Weiran Wang,
  • Ben Zhang

摘要

As a multifunctional soil conditioner, biochar has demonstrated significant potential for sustainable plant disease suppression. The core mechanism of plant disease control involves the effective regulation of soil microbial communities. However, systematic research and analysis of this mechanism remain incomplete and dispersed. The aim of this review is to systematically analyze the specific mechanism by which biochar suppresses plant diseases through the regulation of soil microbial communities. The disease suppression efficacy of biochar is influenced by numerous factors, including biochar preparation conditions, biochar application practices, and plant-pathogen types, and this review further explores how these factors influence disease suppression through their effects on soil microbial regulation. Furthermore, specific parameters from relevant studies are systematically categorized to provide theoretical support for enhancing the disease control efficacy of biochar and promoting its application. This review synthesizes a mechanistic understanding of biochar-mediated disease suppression, and summarizes the impact of key parameters on suppression rates, thereby offering a practical reference for optimizing biochar application.

Graphical Abstract