不同喷药时期对甘肃陇南小麦赤霉病的防治效果  

Control Effects of Different Spray Timings on Wheat Fusarium Head Blight in Southern Gansu Province

作　　者：王万军[1] 袁小平 杨晓辉 李力 曹世勤[3,4,5] 贾秋珍 WANG Wanjun;YUAN Xiaoping;YANG Xiaohui;LI Li;CAO Shiqin;JIA Qiuzhen(Green Agronomic Centre,Tianshui Agricultural Sciences,Gangu Gansu 741200,China;Agricultural Technology Extension Centre of Hui County,Hui County Gansu 742300,China;Wheat Research Institute,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China;Scientific Observing and Experimental Station of Crop Pests in Tianshui,the Ministry of Agriculture and Rural Affairs,P.R.China,Gangu Gansu 741200,China;National Agricultural Experimental Station for Plant Protection at Gangu,the Ministry of Agriculture and Rural Affairs,P.R.China,Gangu Gansu 741200,China;Institute of Plant Protection,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China)

机构地区：[1]天水市农业科学研究所绿色农业研究中心,甘肃甘谷741200 [2]徽县农业技术推广中心,甘肃徽县7423003 [3]甘肃省农业科学院小麦研究所,甘肃兰州730070 [4]农业农村部天水作物有害生物野外科学观测实验站,甘肃甘谷741200 [5]农业农村部国家植物保护甘谷观测实验站,甘肃甘谷741200 [6]甘肃省农业科学院植物保护研究所,甘肃兰州730070

出　　处：《甘肃农业科技》2022年第6期76-79,共4页Gansu Agricultural Science and Technology

基　　金：甘肃省科技厅重点研发项目“陇南徽成盆地小麦赤霉病监测与防控”(20YF3NA023);金城科普专家曹世勤研究员工作室。

摘　　要：为明确小麦不同生长期喷施430 g/L戊唑醇悬浮剂对小麦赤霉病防治效果的影响,于2021年在甘肃省陇南市徽县栗川镇范寺村进行了田间试验。结果表明,在小麦抽穗期、扬花期、灌浆期喷雾,田间防效分别为93.23%、84.39%、36.51%,折合产量分别为9168.0、8949.0、8376.0 kg/hm^(2),较喷清水分别增产10.76%、8.12%、1.19%。说明小麦抽穗期到扬花期是甘肃陇南防治小麦赤霉病的关键时期,在该阶段进行杀菌剂喷雾防治,可有效控制小麦赤霉病的发生流行。To evaluate the control effects of fungicide tebuconazole suspension concentrate 430 g/L against Fusarium head blight(FHB,caused by Fusarium graminearum)at different growth stage of wheat,field experiment was carried out at Fansi Village,Lichuan Township,Hui County,Longnan,Gansu Province in 2021.Results showed that the field efficiencies of spraying at heading stage,flowering stage and filling stage were 93.23%,84.39%and 36.51%,respectively,average yields were 9168.0 kg/ha,8949.0 kg/ha and 8376.0 kg/ha,respectively,and the increased ratios in yield were 10.76%,8.12%and 1.19%,respectively.This illustrated that the key control stage for FHB were heading to flowering stage in southern Gansu and sprayed with fungicides at this stage would be beneficial to the effective control of the occurrence and spread of FHB.

关 键 词：小麦赤霉病 不同时期 杀菌剂 防效 甘肃陇南 

分 类 号：S435.121[农业科学—农业昆虫与害虫防治]