有机硅类助剂对香葱疫病的减药增效作用  

Effects of Organosilicon Synergist on Fungicide Reduction and Efficiency Enhancement of Allium fistulosum L.Blight

作　　者：宋焕忠[1] 郭元元[1] 李洋 张力[1] 陈琴 陈振东[1] SONG Huanzhong;GUO Yuanyuan;LI Yang;ZHANG Li;CHEN Qin;CHEN Zhendong(Institute of Vegetable,Guangxi Academy of Agricultural Sciences,Nanning 530007)

机构地区：[1]广西农业科学院蔬菜研究所,南宁530007

出　　处：《长江蔬菜》2021年第12期67-70,共4页Journal of Changjiang Vegetables

基　　金：国家重点研发计划“广西西红柿、香葱化肥农药减施技术模式建立与示范(2018YFD0201209-03)”;广西科技重大专项“广西优势外向型蔬菜绿色高效栽培技术集成与示范(桂科AA172004041)”;广西农业科学院科技先锋队专项行动(桂农科JZ202009);广西农业科学院基本科研业务专项项目(桂农科2021YT101)。

摘　　要：以小米葱为试材,采用田间大区试验,设置不施药(CK)、常规施药(T_(1))、添加助剂减量35%施药(T_(2))和添加助剂不减量施药(T_(3))4个处理,研究了农用N-380有机硅类增效助剂对香葱疫病的减药增效作用及助剂辅助减药后对香葱产量的影响。试验结果表明,疫病的病情指数CK>T_(1)=T_(2)>T_(3),防治效果T_(3)>T_(1)=T_(2),各处理产量之间没有显着性差异,损耗率CK>T_(1)=T_(3)>T_(2),T_(2)的损耗率相对CK显著降低(P<0.05)。综上所述,添加有机硅类助剂能有效提高农药对香葱疫病的防治效果;在农药减量35%的条件下,添加有机硅类助剂能保证药剂对香葱疫病的防治效果,并有效降低香葱的损耗率,提高香葱的商品产量。有机硅类助剂是农药减量增效和病虫害绿色防控的理想技术产品,可以在香葱田大面积推广应用。This field experiment was designed to study the effects of agricultural N-380 organosilicon synergist on the blight incidence and yield of Allium fistulosum L.,by setting four treatments,including no fungicide application treatment(CK),conventional fungicide application treatment(T_(1)),35%reduction of conventional fungicide application and synergist treatment(T_(2)),conventional fungicide application and synergist treatment(T_(3)).The results showed that the disease index was CK>T_(1)=T_(2)>T_(3),and the control efficiency was T_(3)>T_(1)=T_(2).There was no significant difference among the yield of each treatment,and the rate of waste was CK>T_(1)=T_(3)>T_(2),in addition,the waste rate of T_(2) was significant decreased than that of CK.In summary,the addition of synergist could effectively improve the control efficiency of fungicide on chives blight,and under the condition of 35%reduction of the fungicide,the addition of synergistly could ensure the control efficiency of the fungicide on chives blight,effectively reduce the waste rate,increase the commercial output of chives.Synergists are ideal technical products for fungicide reduction and efficiency enhancement,as well as green prevention and control of diseases and insect pests,so they can be popularized and applied in large area of chives fields.

关 键 词：助剂 减药增效 香葱 疫病 产量 

分 类 号：S482.92[农业科学—农药学]