A quantitative evaluation of the biochar’s influence on plant disease suppress: a global meta-analysis

Abstract Numerous studies have demonstrated that soil applications of biochar contribute to plant disease suppression and growth promotion. Here, we quantitatively evaluated the performance biochars on production using meta-analysis literature data. The results indicated amendment dramatically reduced severity (DS) by 47.46% while increasing biomass 44.05%. highest was achieved with application straw-derived compared from other feedstocks, no significant increase in yield found biochar. Biochars pyrolyzed at medium temperatures (350–600 °C) facilitate both controlling Soil between 3 5% significantly decreased DS 59.11%, inverted U-shaped dose/DS curve dose/growth were observed. In cash crop fields, plants amended over 50%, which higher than grain crops perennial trees. Furthermore, for airborne pathogens soilborne pathogens, possibly due systemic activation defences amendment. Additionally, a reduction observed grown agricultural soils. Our work contributes standardization provides reference improving function control. Graphical