贵州农业科学2025，Vol.53Issue(5)：49-56,8.DOI:10.3969/j.issn.1001-3601.2025.05.007
有机肥添加生防微生物对烟草青枯病的田间防控效果
Control Efficacy of Adding Biocontrol Microbial Agents in Organic Fertilizers to Tobacco Bacterial Wilt Disease in Field
摘要
Abstract
[Objective]The field efficacy of organic fertilizer combined with biocontrol microbial agents against tobacco bacterial wilt was investigated to provide a reference for green prevention and control strategies.[Method]Using conventional field agronomic practices as CK,organic fertilizer enriched with biocontrol microbial agents(195 kg/667m2 organic fertilizer,5.5 kg/667m2 biocontrol microbial agents)was applied as a base fertilizer.Additionally,biocontrol microbial agents(700 g/667m2)were incorporated into the rooting water during tobacco seedling transplantation to assess their impact on soil physiochemical properties,tobacco plant growth and control of tobacco bacterial wilt.[Result]Adding biocontrol microbial agents to organic fertilizer caneffectively promote the absorption and utilization of organic matter,nitrogen and potassium of tobacco plants.During the resettling stage,the contents of soil organic matter and total nitrogen in the treatment group decreased by 12.29 g/kg and 0.48 g/kg respectively compared with the control group.During the harvest period,the contents of soil organic matter,total nitrogen and total potassium in the treatment group decreased by 2.69 g/kg,0.67 g/kg and 7.55 g/kg respectively.Adding biocontrol microbial agents to organic fertilizer can improve soil pH,and promote tobacco growth.Compared with CK,the plant height,stem circumference,the number of effective leaves and maximum leaf area of the treatment group were significantly increased by 84.96％,7.92％,18.42％and 45.00％respectively,and the leaf area coefficient was significantly increased by 51.47％.The fresh weight of root system increased significantly by 52.78％during the harvesting period.At the early stage of tobacco bacterial wilt,the relative control effect of the treatment group was 40.00％.In the middle and late stage of the disease,the incidence and disease index of the treatment group were reduced by 10.00 percentage points and 14.45 respectively compared with the control group.[Conclusion]The organic fertilizer enriched with biocontrol microbial agents not only improves soil quality and stimulates the growth of both the aboveground and underground parts of tobacco,but also effectively prevents and controls tobacco bacterial wilt.Therefore,it is worth promoting in tobacco production.关键词
有机肥/生防微生物/烟草青枯病/防效/农艺性状/理化性质Key words
organic fertilizer/biocontrol microbial agents/tobacco bacterial wilt/control effect/agronomic traits/physiochemical properties分类
农业科技引用本文复制引用
戴成宗,王凯,陈斌,黄俊豪,陈少鹏,金凯,代先强..有机肥添加生防微生物对烟草青枯病的田间防控效果[J].贵州农业科学,2025,53(5):49-56,8.基金项目
中国烟草总公司重庆市公司科技项目"微生物肥对位防控烟草病虫害技术研究及数字化应用"(B20231NY1306) （B20231NY1306）
