Meta分析评估芽孢杆菌对作物根腐病防治的效果及其影响因素OA

To evaluate the efficacy of Bacillus spp.in controlling crop root rot diseases and to identify key influencing factors,a meta-analysis was conducted based on 479 datasets extracted from 108 peer-reviewed studies retrieved from the Web of Science and China National Knowledge Infrastructure(CNKI)databases.The analysis included assessments of heterogeneity,publication bias,and effect size integration.The results indicated that the application of Bacillus spp.exhibited a significant and reliable control efficacy against crop root rot(R=0.529,P＜0.001,I2=99.30％).While no publication bias but substantial heterogeneity was detected in the included data,and it mean necessitating subgroup analysis.The subgroup analysis revealed that bacterial strain,formulation,effective viable count,application method,and efficacy assessment time significantly influenced the control efficacy(P<0.001),with formulation and application method having particularly prominent effects(R=0.528).In contrast,crop type,application purpose,frequency,and cultivation environment showed no significant impact on the efficacy(P＞0.1).Based on these findings,it was recommended to apply a low-concentration soil amendment containing Paenibacillus polymyxa(formerly classified as Bacillus polymyxa)once prior to planting,followed by close monitoring of disease development approximately 15 days post-application,with timely implementation of supplementary management practices as needed.