西南林业大学学报2025，Vol.45Issue(3)：177-182,6.DOI:10.11929/j.swfu.202402032
3种土壤熏蒸技术对烤烟土传病害防控效果及农艺性状的影响
Effects of 3 Different Soil Fumigation on Control of Soil-borne Diseases and Agronomic Traits of Flue-cured Tobacco
摘要
Abstract
Combine the plant species and planting pattern in Kunming tobacco field in spring,3 soil fumiga-tion of chemical,biological and combined chemical and biological fumigation techniques were carried out,and the effects on the prevention and control of soil-borne diseases and yield of flue-cured tobacco were studied.The findings revealed that the killing rates of 4 representative pathogens of soil-borne diseases by 375 kg/hm2 dazo-met treatment,biological mustard fumigation treatment,150 kg/hm2 dazomet combined with mustard were,re-spectively,97.51％,45.09％,80.27％for phytophthora,97.56％,48.63％,72.14％for pythium,95.51％,55％,72.14％for fusarium,93.99％,65％,83.18％for root knot nematode;the prevention and control rates of 4 soil-borne tobacco diseases were,respectively,88.10％,66.93％,78.44％for black shank,91.05％,71.90％,85.03％for black root rot,91.05％,64.78％,74.42％for root knot nematode disease,61.30％,43％,57.33％for bacterial wilt;the stem diameter,leaf number,leaf length and leaf width of the three fumigation treatments increased posit-ively,and the yield of flue-cured tobacco was 1.79 times,1.26 times and 1.52 times that of the control,respect-ively.Three fumigation treatments had a certain effect on the prevention and control of soil-borne diseases and yield increase of flue-cured tobacco,and effect of dazomet were the most significant,and the effect of combined was between dazomet treatment and mustard treatment.Dazomet and mustard fumigation is a new and effective pesticide reduction technology.In production,different fumigation and disinfection methods can be adopted ac-cording to the number of phytophthora,rot,fusarium and root-knot nematode in different tobacco planting soil.关键词
烟草/病害/土壤熏蒸/棉隆/生物熏蒸/联合熏蒸Key words
tobacco/disease/soil fumigation/dazomet/biological fumigation/combined fumigation分类
植物保护学引用本文复制引用
韩庆莉,韩学应,刘正玲,田继娟,杨松兵,徐应超,陈雅琼..3种土壤熏蒸技术对烤烟土传病害防控效果及农艺性状的影响[J].西南林业大学学报,2025,45(3):177-182,6.基金项目
云南省烟草公司科技计划重大项目(2021530000241031)资助. （2021530000241031）
