[1]滕春红.氯氟草醚乙酯防除大豆杂草[J].大豆科学,2008,27(02):301-305.[doi:10.11861/j.issn.1000-9841.2008.02.0301]
　TENG Chun-hong.Control Efficacy of Ethoxyfen-ethyl on Weeds of Soybean[J].Soybean Science,2008,27(02):301-305.[doi:10.11861/j.issn.1000-9841.2008.02.0301]
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氯氟草醚乙酯防除大豆杂草

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第27卷 期数: 2008年02期 页码: 301-305 栏目: 出版日期: 2008-04-30
Title:
Control Efficacy of Ethoxyfen-ethyl on Weeds of Soybean
文章编号:
1000-9841(2008)02-0301-05
作者:
滕春红
东北农业大学，黑龙江 哈尔滨 150030
Author(s):
TENG Chun-hong
Northeast Agricultural University，Harbin 150030，Heilongjiang，China
关键词:
氯氟草醚乙酯; 大豆; 阔叶杂草; 后茬作物; 甲酯化植物油
Keywords:
Ethoxyfenethyl; Soybean; Broadleaf weeds; Succeeding crop; Methylated vegetable oil
分类号:
S451.22
DOI:
10.11861/j.issn.1000-9841.2008.02.0301
文献标志码:
A
摘要:
为了探讨氯氟草醚乙酯在大豆田的应用技术，在温室盆栽条件下研究了氯氟草醚乙酯的除草效果、对大豆的安全性、对后茬作物的影响及甲酯化植物油对其活性的影响。结果表明：30%氯氟草醚乙酯水剂茎叶处理对阔叶杂草有较高的活性，药效反应迅速，20 mL a.i. hm-2的防效高于25％氟磺胺草醚水剂300 mL a.i. hm-2，20~30 mL a.i. hm-2?处理4 d对阔叶杂草的目测防效达到78％~82.5％，处理7 d对阔叶杂草的目测防效达到88％~91％，其对禾本科杂草也有一定的防效。氯氟草醚乙酯茎叶处理对大豆有一定程度的药害，随着用量的加大药害增大，但随着大豆生长，逐渐恢复正常，高浓度（100、120 mL a.i. hm-2）有死苗现象，其药害与三氟羧草醚近似。氯氟草醚乙酯无土壤残留，喷药一个月后种植玉米、小麦均正常出苗、生长发育正常。甲酯化植物油能明显提高氯氟草醚乙酯的活性。综合药效与药害考虑，30％氯氟草醚乙酯水剂在大豆田茎叶处理用量以20~30 mL a.i. hm-2为宜，在使用中应加入喷液量0.5％的甲酯化植物油。
Abstract:
Ethoxyfen-ethyl which is diphenylether herbicide is developed by Budapest Chemical，it’s mechanism of action is protox inhibitor，it can control weeds in soybean，peanut，english pea，winter wheat and winter barley.Ethoxyfen-ethyl’s biological activity is highest and it’s applied range is the widest among diphenylether herbicide.Ethoxyfen-ethyl is post-applied herbicide.Ethoxyfen-ethyl’s biological activity is higher than most herbicide.Ethoxyfen-ethyl mainly control annual broadleaf weeds，and it can inhibit perennial weeds to some extent.To discuss utilization technology for the herbicide ethoxyfen-ethyl applied in soybean（Glycine max)，greenhouse pot experiments were conducted to investigate control efficacy，safety to soybean，effect on succeeding crop and effect of methylated vegetable oil on ethoxyfen-ethyl’s activity.In greenhouse pot experiments，ethoxyfen-ethyl 30% aqueous solution had a good control effect to broadleaf weeds by foliar treatment，control efficacy occurred rapidly，injury symptoms occurred at the day after treatment，injury weed leaves occurred brown spot.Ethoxyfen-ethyl’s activity of 20 mL a.i. ha-1was higher than that of fomesafen 25% aqueous solution of 300 mL a.i. ha-1.Ethoxyfen-ethyl visible control at 20-30 mL a.i. ha-1to broadleaf weeds was 78％-82.5％ 4 d after treatment，88％-91％ 7 d after treatment.Ethoxyfen-ethyl also had some activity on grass weeds.Ethoxyfen-ethyl caused certain injury on soybean，the injury increased with application rate increased，soybean could recover safely from injury，few soybean applied by ethoxyfen-ethyl with high concentrate（100，120 mL a.i. ha-1）was dead，injury was similar to that of acifluorfen.Ethoxyfen-ethyl had no residue in soil and it is safe to succeeding crop such as maize（Zea mays L）and wheat（Triticum aestivum L.）.Ethoxyfen-ethyl applied with methylated vegetable oil provided a dramatic increase in weeds control efficacy.Concern of both control efficacy and injury，the optimal application rate of ethoxyfen-ethyl 30% aqueous solution is 20~30 mL a.i. ha-1applied in soybean，and ethoxyfen-ethyl should be applied with 0.5% spray volume methylated vegetable oil.

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备注/Memo

基金项目：黑龙江省农科院博士后基金资助项目;东北农业大学科学研究基金资助项目。

作者简介：滕春红（1976-），女，博士，讲师，主要从事农药学的教学和科研工作。E-mail：tchgrace@163.com； Tel：13354503490。

更新日期/Last Update: 2014-10-10