[1]张富荣,赵存虎,贺小勇,等.唑嘧磺草胺与精异丙甲草胺混用防除大豆田杂草技术研究[J].大豆科学,2018,37(03):424-428.[doi:10.11861/j.issn.1000-9841.2018.03.0424]
　ZHANG Fu-rong,ZHAO Cun-hu,HE Xiao-yong,et al.Study on A Flumetsulam/S-metolachlor Mixture Controlling Weeds in Soybean Fields[J].Soybean Science,2018,37(03):424-428.[doi:10.11861/j.issn.1000-9841.2018.03.0424]
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唑嘧磺草胺与精异丙甲草胺混用防除大豆田杂草技术研究

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第37卷 期数: 2018年03期 页码: 424-428 栏目: 出版日期: 2018-05-20
Title:
Study on A Flumetsulam/S-metolachlor Mixture Controlling Weeds in Soybean Fields
作者:
张富荣1; 赵存虎2; 贺小勇2; 程玉臣2; 贾永红1
（1.内蒙古农业大学 职业技术学院，内蒙古 包头 014109； 2.内蒙古自治区农牧业科学院 植物保护研究所，内蒙古 呼和浩特 010031）
Author(s):
ZHANG Fu-rong1;  ZHAO Cun-hu2;  HE Xiao-yong2;  CHENG Yu-chen2;  JIA Yong-hong1
(1. College of Vocational and Technological, Inner Mongolia Agricultural University, Baotou 014109,China； 2. Plant Protection Institute, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Huhhot 010031, China)
关键词:
唑嘧磺草胺; 精异丙甲草胺; 大豆; 防效; 共毒系数
Keywords:
Flumetsulam;  S-metolachlor;  Soybean;  Control effect;  Co-toxicity coefficient
DOI:
10.11861/j.issn.1000-9841.2018.03.0424
文献标志码:
A
摘要:
为了明确唑嘧磺草胺与精异丙甲草胺混用的适宜配比及防除大豆田杂草的施药剂量，采用盆栽法测定了唑嘧磺草胺与精异丙甲草胺5个配比的稗草生物活性，通过田间试验研究了4个混用剂量对大豆出苗数、株高、产量的影响和对杂草的防效。结果表明：唑嘧磺草胺与精异丙甲草胺混用具有很好的增效作用，对大豆安全，适宜的混用比例为1∶20，适宜的施药量为900～1 200 g·hm-2。唑嘧磺草胺与精异丙甲草胺按1∶2.5、1∶5、1∶10、1∶20、1∶40混用的5个配比对稗草的生物活性均表现为增效作用，共毒系数为240.72～380.59，其中以1∶20配比的共毒系数最高。唑嘧磺草胺与精异丙甲草胺混用比例为1∶20时，施药量600，900，1 200，1 800 g·hm-2施药后45 d对杂草的总株防效为78.9%～98.2%，鲜重防效为85.3%～99.6%，4个混用处理与人工除草处理之间在大豆出苗数、株高和产量方面均没有显著差异。
Abstract:
In order to determine proper Flumetsulam/S-metolachlor ratios and suitable dosages on weed control in soybean fields, it was treated with five Flumetsulam/S-metolachlor ratios (1∶2.5, 1∶5, 1∶10, 1∶20,1∶40)for Echinochloa crusgalli?using pot growing method, and their bioactivities were detected, and the effect of weed control and the seedling number, plant height and yield of soybean treated with four mixed dosages (600, 900, 1 200 and 1 800 g·ha-1) was studied by field experiments. The results showed that: The mixed use of Flumetsulam and S-metolachlor had a positive synergistic effect on weed control and a good safety for the growth of soybeans, the proper mixed ratio was 1∶20, and the suitable dosages range from 900 to 1 200 g·ha-1, the co-toxicity coefficients of five mixed ratios with positive synergistic effect fluctuated between 240.72 and 380.59, and the maximum co-toxicity coefficient was 380.59 at 1∶20,when Flumetsula/S-metolachlor mixtures of four mixed dosages with mixed ratio at 1∶20 were sprayed after 45 d, the positive effects of weed control were a total plant control effect of 78.9%～98.2% and a total fresh weight control effect of 85.3%～99.6%. There was not remarkable difference in seedling emergences, plant height and yields of soybean between the four mixed treatments and the manual weeding.

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备注/Memo

收稿日期：2018-02-01

基金项目：国家重点研发计划（2016YFC0500705）;内蒙古自治区科技重大专项（20161500）。
第一作者简介：张富荣（1972-），女，硕士，副教授，主要从事植物保护研究。E-mail:zhangfurong205@126.com。
通讯作者：程玉臣（1974-），男，学士，研究员，主要从事杂草防控技术研究。E-mail:251677971@qq.com。

更新日期/Last Update: 2018-06-08