乙氧氟草醚与莠灭净混剂防治玉米田杂草的室内活性配方筛选
Screening of Indoor Activity Prescription for Prevention and Control of Weeds in Corn Field
侯新玲 1郭志刚 1郭振营 1雷晓天1
作者信息
- 1. 河南省新乡市农业科学院,河南新乡453000
- 折叠
摘要
[目的]探讨乙氧氟草醚和莠灭净复配应用于玉米田杂草防治的最佳配比.[方法]采用盆栽法研究乙氧氟草醚、莠灭净的单剂和混剂对玉米田杂草的防治效果.[结果]5个配比的共毒系数在85.06～128.63,其中1:4.8、1:5.4、1:6.0、1:7.2这4个配比的共毒系数分别为85.06、94.78、110.52和115.53,为相加作用;1:6.6配比的共毒系数为128.63,为增效作用.[结论]建议选取制剂乙氧氟草醚:莠灭净=1:6.6,采用l 200 ～1 440 g/hm2用液量进行田间小区试验,验证其田间防效.
Abstract
[Objective] To explore the optimal proportion of oxyfluorfen and ametryn applied in weed control in corn field.[Method] Pot-planting method was adopted.Single agent and mixed agent treatments were designed at different concentrations.Toxicity regression equation of drugs was established.After calculating EC50, co-toxicity coefficient of mixed agent was obtained by the method of Sun Yun-pei.[Result] The co-toxicity coefficients of four preparations 1: 4.8, 1: 5.4, 1: 6.0 and 1: 7.2 were 85.06, 94.78, 110.52 and 115.53, respectively, which were additive effects.The co-toxicity coefficient of preparation 1:6.6 was 128.63, which was synergistic effects.[Conclusion] Field plot experiment was carried out by preparation oxyfluorfen: ametryn =1 : 6.6 with the fluid volume of 1 200-1 440 g/hm2.Field efficacy was verified.
关键词
乙氧氟草醚/莠灭净/混剂/配方Key words
Oxyfluorfen/Ametryn/Mixture/Preparation引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据