3种除草剂安全剂对玉米烟嘧磺隆药害的解毒效果  

Detoxication Effects of Three Safeners on Phytotoxicity of Nicosulfuron on Maize

作　　者：高新菊[1] 马毅辉[1] 王恒亮[1] 陈威[1] 贾刚民[1] 张俊涛[1] 张振臣[1] 闫凤鸣[2] 

机构地区：[1]河南省农业科学院植物保护研究所河南省农作物病虫害防治重点实验室农业部华北南部作物有害生物综合治理重点实验室,郑州450002 [2]河南农业大学植物保护学院,郑州450002

出　　处：《农药》2015年第4期306-309,共4页Agrochemicals

基　　金：河南省农业科学院自主创新专项基金;河南省博士后基金科研资助项目(2013046)

摘　　要：[目的]研究环丙磺酰胺、双苯噁唑酸和解草酯对郑单958、登海605、金彩糯628和自甜糯玉米烟嘧磺隆药害的解毒效果。[方法]大田条件下,于玉米6~7叶期喷施3种安全剂与烟嘧磺隆的组合,20 d后测定株高和叶数,玉米收获期测产。[结果]添加环丙磺酰胺或双苯噁唑酸的处理玉米株高、叶数和产量均高于单施同剂量的烟嘧磺隆处理;而在烟嘧磺隆高剂量(120、240 g a.i./hm^2)处理时添加解草酯可能会使玉米株高、叶数和产量进一步降低。[结论]环丙磺酰胺或双苯噁唑酸可有效缓解玉米烟嘧磺隆药害,解草酯则不能。[Aims] The paper aims to study the detoxication effects of cyprosulfamide, isoxadifen-ethyl, cloquintocet-mexyl on the nicosulfuron-caused phytotoxicity in four maize varieties of Zhengdan 958, Denghai 605, Jincainuo 628 and Baitiannuo. [Methods] Nicosulfuron alone and its combinations with each safener were sprayed on corn at 6-7 leaf stagein the field. Plant height and leaf number were surveyedon 20th day after treatment and the yields in harvest were also investigated. [Results] Compared to nicosulfuron alone, its combinations with cyprosulfamide or isoxadifen-ethyl increased plant height, leaf numberand the productionof corn at all three tested application rates, while nicosulfuron combined with cloquintocet-mexyl at higher doses（120, 240 g a.i./ha） may further reduce such three parameters. [Conclusions] The nicosulfuron-caused phytotoxicity can be effectively alleviated by cyprosulfamide and isoxadifen-ethylin but not eloquintocet-mexyl.

关 键 词：烟嘧磺隆 玉米 药害 环丙磺酰胺 双苯(口恶)唑酸 解草酯 

分 类 号：S48[农业科学—农药学] S513[农业科学—植物保护]