生物制剂防治小麦赤霉病田间药效试验  

Field Efficacy of Biocontrol Agents in Controlling Wheat Scab

作　　者：李伟华[1] 郭振升[2] 田伟 张慎举[2] 皇甫自起[2] Li Weihua;Guo Zensheng;Tian Wei;Zhang Shenju;Huangfu Ziqi(Shangqiu College,Shangqiu 476000,Henan,China,2Shangqiu Vocational and Technical College,Shangqiu 476000,Henan,China)

机构地区：[1]商丘学院,河南商丘476000 [2]商丘职业技术学院,河南商丘476000

出　　处：《农学学报》2018年第6期10-14,共5页Journal of Agriculture

基　　金：河南省重点科技攻关计划项目"豫东平原区小麦玉米两熟农艺农机配套技术研究与应用"(142102110024);商丘市科技攻关计划项目"小麦玉米两熟超高产栽培技术体系研究与应用"(153022);河南省高等学校重点科研项目"小麦玉米超高产栽培技术研究与应用"(16A210038)

摘　　要：为提高小麦赤霉病防治效果,筛选豫东平原防治小麦赤霉病的高效生物制剂,以‘郑麦7698’为试材,研究枯草芽孢杆菌WP、氨基寡糖素AS、申嗪霉素SC、低聚糖素AS、井冈·蜡芽菌SC 5种生物制剂和井冈·多菌灵SC、多菌灵WP对小麦赤霉病的田间防效。结果表明:小麦赤霉病重发年份,2次用药可以明显提高病穗防效和病指防效,应该进行2次用药。在小麦扬花初期、扬花盛期2次用药,对小麦赤霉病防治效果最好的处理为处理(6)井冈·多菌灵,病穗防效为78.21%,病指防效达到80.55%;处理(7)多菌灵、处理(3)申嗪霉素、处理(1)枯草芽孢杆菌次之,病指防效均在75%以上,无显著性差异。增产效果以处理(6)井冈·多菌灵最好,增产率为26.51%;处理(7)多菌灵次之,增产率为25.03%。豫东平原防治小麦赤霉病可首选井冈·多菌灵,多菌灵仍可继续应用,枯草芽孢杆菌、申嗪霉素可作为多菌灵的替代药剂推广应用。To improve the control effect of wheat scab and screen out an efficient biological control agent,the study takes ‘Zhengmai7698’ as test material,to examine the effect of five different biocontrol agents,which were Bacillus Subtilis WP,Amino-oligosaccharide AS,Shinyomycin SC,Oligosaccharin AS and Jinggang Bacillus Cereus SC and two different Carbendazims,which were Jinggang Carbendazim SC and Carbendazim WP,on wheat scab in field in Henan Plain.The results indicated that in heavy wheat scab periods,twice usages of biocontrol agents significantly improved the prevention effects of disease spike and disease index,twice usages should be conducted in heavy disease years.Furthermore,among the biocontrol agents applied in the initial stage of flowering and the stage of blossoming,the best treatment of wheat scab was Jinggang Carbendazim,with the disease spike prevention effect of 78.21%,and disease index prevention effect of 80.55%,followed by Carbendazim,Shinzamycin and Bacillus Subtilis,whose control efficiency was all above75%and had no significant difference.Jinggang Carbendazim had the best yield-increasing effect with a rate of 26.51%,then was Carbendazim with the yield-increasing rate of 25.03%.To conclude,Jinggang Carbendazim is the first choice in eastern Henan plain,while Carbendazim remains useful.Bacillus Subtilis and Shinzamycin could be used as feasible alternatives of Carbendazim.

关 键 词：小麦 赤霉病 生物制剂 病穗率 病情指数 病穗防效 病指防效 

分 类 号：S512.11[农业科学—作物学]