农业与技术2026，Vol.46Issue(8)：16-19,4.DOI:10.19754/j.nyyjs.20260830003
不同药剂浸苗对红芪产量及根腐病防治效果的影响
Effects of Different Medicament Seedling Soaking on Yield and Root Rot Control of Hedysarum polybotrys
摘要
Abstract
In order to screen efficient and low-toxicity fungicides suitable for controlling root rot in Hedysarum polybotrys(Hongqi)from the Longnan Dao-di production area,this experiment established six treatments:80％mancozeb wettable powder(T1),50％thiophanate-methyl wettable powder(T2),30％metalaxyl·hymexazol aqueous solution(T3),40％quintozene wettable powder(T4),a compound formulation(9％pyraclostrobin suspension concentrate+10％thiamethoxam suspension concentrate+3％difenoconazole suspension concentrate for seed coating+30％phoxim suspension concentrate)(T5),and a clear water control(CK).Through field plot trials,the incidence,disease index,and control efficacy of H.polybotrys root rot under different chemical seedling-soaking treatments were systematically evaluated.Simultaneously,individual growth indicators(root length,number of lateral roots,stem diameter,longest lateral root length,single root fresh weight)and yield indicators(plot fresh weight)were observed.The T3 and T5 treatments demonstrated optimal control effects against H.polybotrys root rot,with control efficacies reaching 72.67％and 72.50％,respectively.There was no significant difference between the two treatments(P＞0.05).Both treatments significantly increased stem diameter,single root fresh weight,and plot yield.Specifically,the T3 treatment resulted in a fresh weight yield of 603.71 kg·667 m-2,representing an 18.98％increase compared to CK.Comprehensively,the 30％metalaxyl.hymexazol aqueous solution(T3)and the compound formulation(T5)effectively balanced root rot control with yield enhancement in H.polybotrys.They are suitable as preferred environmentally friendly control agents for diseases during the seedling stage of H.polybotrys in Longnan.In practice,either agent can be flexibly selected based on the occurrence of field pests and diseases.关键词
红芪/根腐病/药剂浸苗/防治效果/产量Key words
Hedysarum polybotrys/root rot/seedling soaking with chemicals/control efficacy/yield分类
农业科技引用本文复制引用
周敏,孙连虎,王振坤,潘水站,贺碧霞,刘敏艳,马丽,王琴..不同药剂浸苗对红芪产量及根腐病防治效果的影响[J].农业与技术,2026,46(8):16-19,4.基金项目
2024年甘肃省级科技计划乡村振兴专项"陇南红芪病虫草害绿色防控关键技术集成与示范推广"(项目编号:24CXNK002) （项目编号:24CXNK002）
财政部和农业农村部国家现代农业产业技术体系项目(项目编号:CARS-21) （项目编号:CARS-21）
中共甘肃省委人才工作领导小组第二批陇原青年英才计划项目(项目编号:2023-11) （项目编号:2023-11）
陇南市级科技重大专项"红芪保健饮品研发"项目(项目编号:2024ZD08) （项目编号:2024ZD08）
