A meta-analysis of biochar application to manage plant diseases caused by bacterial pathogens


  • Erika Valente de Medeiros Universidade Federal do Agreste de Pernambuco https://orcid.org/0000-0001-5543-9414
  • Carlos Alberto Fragoso de Souza Universidade Federal do Agreste de Pernambuco
  • Diogo Paes da Costa Universidade Federal do Agreste de Pernambuco https://orcid.org/0000-0002-8551-7345
  • Raví Emanoel de Melo Universidade Federal do Agreste de Pernambuco https://orcid.org/0000-0002-5080-9946
  • Edcleyton José de Lima Universidade Federal do Agreste de Pernambuco
  • Inara da Silva Araújo Universidade Federal do Agreste de Pernambuco
  • José Henrique de Souza Junior Universidade Federal do Agreste de Pernambuco
  • José Romualdo de Sousa Lima Universidade Federal do Agreste de Pernambuco https://orcid.org/0000-0003-2983-4650
  • Kedma Maria Silva Pinto Universidade Federal do Agreste de Pernambuco
  • Claude Hammecker Soil-Agrosystem-Hydrosystem interaction lab-LISAH https://orcid.org/0000-0001-5594-4891




Disease control, Economic viability, Phytopathogens, Sustainability.


The current agricultural scenario faces diverse challenges, among which phytosanitary issues are crucial. Plant diseases are mostly treated with chemicals, which cause environmental pollution and pathogen resistance. In light of the UN Sustainable Development Goals (SDGs), the biochar alternative use to chemical inputs fits into at least six of the proposed goals (2, 3, 7, 13, 15, and 17), highlighting the 12th, which explains responsible consumption and production. Biochar is valuable for inducing systemic resistance in plants because it is a practical and frequently used resource for improving physical, chemical, and biological soil attributes. This review assessed the beneficial and potential effects of applying biochar to agricultural soils on bacterial pathogen management. Such application is a recent strategy; therefore, this research evaluated 20 studies that used biochar to manage plant diseases caused by pathogens inhabiting the soil in different systems. The effectiveness of biochar application in controlling plant diseases has been attributed to its alkaline pH, which contributes to the growth of beneficial microorganisms and increases nutrient availability, and its porous structure, which provides habitat and protection for soil microbiome development. Therefore, the combined effect of improvements on soil attributes through biochar application aids pathogen control. Biochar application helps manage plant diseases through different mechanisms, inducing plant resistance, increasing activities and abundance of beneficial microorganisms, and changing soil quality for nutrient availability and abiotic conditions.


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How to Cite

MEDEIROS , E.V. de, SOUZA, C.A.F. de, COSTA , D.P. da, MELO, R.E. de, LIMA, E.J. de, ARAÚJO, I. da S., JUNIOR, J.H. de S., LIMA , J.R. de S., PINTO , K.M.S. and HAMMECKER, C., 2023. A meta-analysis of biochar application to manage plant diseases caused by bacterial pathogens. Bioscience Journal [online], vol. 39, pp. e39095. [Accessed16 June 2024]. DOI 10.14393/BJ-v39n0a2023-67325. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/67325.



Agricultural Sciences