不同杀菌剂及其施用方法对花生叶斑病防治效果及产量的影响研究李阳，任丽，谷建中*（开封市农林科学院，河南开封475000）摘要：为筛选出有效防治花生叶斑病的杀菌剂及其施用方法，采用不同喷施次数和喷施浓度，研究不同杀菌剂对花生叶斑病的防治效果及对产量的影响。结果表明：各杀菌剂及不同施用方法，其防治效果在28.44%~55.06%。百泰对花生叶斑病防治效果较好，其中600倍液喷施2次（间隔15d）防治效果可达44.66%，喷施3次（间隔10d）防治效果可达55.06%。喷施杀菌剂显著改善了叶片功能和生长势，提高了花生产量，荚果和籽仁增产幅度分别在5.07%~16.20%和6.13%~24.68%，其中以百泰600倍液，喷施3次（间隔10d）产量最高。总体来看，百泰对叶斑病的防治效果要好于阿米妙收和多菌灵，施用3次（间隔10d）防治效果要好于喷施2次（间隔15d），高浓度防治效果要好于低浓度。关键词：杀菌剂；施用方法；花生叶斑病；防治效果；产量中图分类号：S435.652文献标识码：A文章编号：2096-5877（2023）01-0035-05StudyonControllingPeanutLeafSpotDiseaseandImprovingYieldbyUsingDifferentFungicidesandApplicationMethodsLIYang,RENLi,GUJianzhong*(KaifengAcademyofAgricultureandForestry,Kaifeng475000,China)Abstract：Inordertoscreenouttheeffectivefungicidesandapplicationmethodstocontrolpeanutleafspotdisease,theeffectofdifferentfungicidesonpeanutleafspotdiseasecontrolandyieldwasstudiedbydifferentsprayingfre⁃quencyandconcentration.Theresultsshowedthatthecontrolefficiencydifferentfungicideandtreatmentwerebe⁃tween28.44%and55.06%.Baitaireachedthebestresultsofpeanutleafspotdiseasecontrol.Withsprayingtwice(15daysinterval)dilutedliquidof1/600,thecontrolefficiencyreached44.66%,andthatofsprayingthreetimes(10daysinterval)was55.06%.Sprayingappropriatefungicidescouldeffectivelyprolongleaffunctionandimprovepea⁃nutyield.AfterusingBaitaifungicidesonpeanut,theyieldofpodsandseedsincreased5.07%-16.20%and6.13%-24.68%,respectively.Thehighestyieldwasobtainedbysprayingdilutedliquidof1/600Baitaisolutionthreetimes(10daysinterval).Ingeneral,theeffectofBaitaionleafspotdiseasewasbetterthanBenzopyrimidineesterandcar⁃bendazim.Theeffectofapplyingthreetimes(10daysinterval)wassuperiortospra...
