【摘要】 为筛选出防治甘薯茎腐病的有效药剂，研究了4种杀菌剂对甘薯茎腐病的防治效果，结果表明，薯苗生长前期用90%(质量分数，下同)氯溴异氰尿酸稀释液滴灌根部，防治效果可达94.64%;用70%甲基硫菌灵稀释液在栽插前浸苗20 min配合栽后每10 d滴灌1次，防治效果为68.53%;用可杀得3000(46%氢氧化铜)稀释液或6%春雷霉素水剂稀释液浸苗配合叶面喷施，防治效果均低于40%.因此，90%氯溴异氰尿酸稀释液可作为甘薯茎腐病防控的有效药剂.更多还原

【Abstract】 To identify effective fungicides for the prevention and control of sweetpotato bacterial stem and root rot, the effects of 4 fungicides were compared through different application methods. The results indicated that applying a diluted solution of 90%(mass fraction, the same below) chlorobromoisocyanuric acid to the root area via drip irrigation during the early growth stage of sweetpotato seedlings achieved a control effect of 94.64%. Using 70% methylthiobacillin diluent to soak seedlings for 20 minutes before planting and drip irrigation after planting every 10 days, the control effect could reach 68.53%. The control effects were all less than 40% by using the diluent of KeShaDe 3000(46% copper hydroxide), the 6% water diluent of chunremycin. Therefore, 90% chloroisocyanate dilutions can be used as an effective control agent in the bacterial stem and root rot of sweetpotato.更多还原