30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂对甜玉米田杂草的防效及安全性  

Weed Control Effect of 30%Nicosulfuron·Atrazine·Mesotrione Oil Dispersion and the Safety to Sweet Corn in Field

作　　者：郭文磊 冯莉[1] 崔烨[1] 吴丹丹[1] 张泰劼[1] 张纯[1] 田兴山[1] GUO Wen-lei;FENG Li;CUI Ye;WU Dan-dan;ZHANG Tai-jie;ZHANG Chun;TIAN Xing-shan(Plant Protection Research Institute,Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key laboratory of High Technology for Plant Protection,Guangzhou 510640,China)

机构地区：[1]广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室,广州510640

出　　处：《玉米科学》2020年第4期178-183,共6页Journal of Maize Sciences

基　　金：广东省农业科学院科技人才引进/培养专项资金(2018);广东省现代农业产业技术体系创新团队。

摘　　要：研究30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在甜玉米田的应用效果,在甜玉米不同叶龄期开展田间试验,评价其对杂草的防除效果及对甜玉米的安全性。结果表明,30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在甜玉米3~4叶期或6~7叶期施药,900~1575 g a.i./hm^2剂量范围内对甜玉米品种粤甜28安全,对玉米田常见杂草凹头苋、光头稗、马唐和香附子的防效及增产效果均显著高于对照药剂38%莠去津悬浮剂2160 g a.i./hm^2播后苗前处理。推荐30%烟嘧磺隆·莠去津·硝磺草酮可分散油悬浮剂在900~1350 g a.i./hm^2范围内,甜玉米3~5叶期茎叶喷雾使用。In order to explicate the application prospect in sweet corn fields,30%nicosulfuron·atrazine·mesot-rione oil dispersion(OD)was applied at different leaf stages of sweet corn under field conditions,through which theweed control effect and the safety to sweet corn were evaluated.When applied at 3-4 leaf stage or 6-7 leaf stage,30%nicosulfuron·atrazine·mesotrione OD showed high safety to the sweet corn breed Yuetian 28 in the doses of900-1575 g a.i./ha.Compared with the conventional herbicide 38%atrazine suspension concentrate(SC),which ap-plied pre-emergence at 2160 g a.i./ha,30%nicosulfuron·atrazine·mesotrione OD had higher weed control efficacyand significant effect on increasing yield.Based on the results,30%nicosulfuron·atrazine·mesotrione OD was rec-ommended to spray at 3-5 leaf stage of sweet corn,with the dose 900~1350 g a.i./ha.

关 键 词：甜玉米 烟嘧磺隆 莠去津 硝磺草酮 防效 

分 类 号：S435.131[农业科学—农业昆虫与害虫防治]