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农学学报 ›› 2024, Vol. 14 ›› Issue (1): 34-38.doi: 10.11923/j.issn.2095-4050.cjas2023-0031

• 植物保护 • 上一篇    下一篇

不同土壤处理除草剂对棉田杂草防除效果及安全性

张华崇(), 赵树琪, 闫振华, 戴宝生, 黄晓莉, 张欣, 李蔚()   

  1. 黄冈市农业科学院,湖北黄冈 438000
  • 收稿日期:2023-02-21 修回日期:2023-05-25 出版日期:2024-01-16 发布日期:2024-01-16
  • 通讯作者:
    李蔚,男,1967年出生,湖北浠水人,正高职高级农艺师,主要从事棉花育种、栽培和技术推广工作。通信地址:438000 湖北省黄冈市黄州区黄州大道89号,E-mail:
  • 作者简介:

    张华崇,男,1989年出生,河南安阳人,硕士,农艺师,主要从事棉花病虫草害防控技术及栽培技术研究。通信地址:438000 湖北省黄冈市黄州区黄州大道89号,E-mail:

  • 基金资助:
    国家棉花产业技术体系专项资金资助项目“鄂东综合试验站”(CARS-15-39); 湖北省农业科技创新中心资助项目“适合机采的棉花新品种选育及示范”(2020-620-000-001-06)

Control Effect and Safety of Different Soil-applied Herbicides in Cotton Field

ZHANG Huachong(), ZHAO Shuqi, YAN Zhenhua, DAI Baosheng, HUANG Xiaoli, ZHANG Xin, LI Wei()   

  1. Huanggang Academy of Agricultural Sciences, Huanggang 438000, Hubei, China
  • Received:2023-02-21 Revised:2023-05-25 Online:2024-01-16 Published:2024-01-16

摘要:

为筛选出适宜本地区土壤处理的除草剂。通过大田小区试验,采用土壤封闭处理,对比分析了7种土壤处理除草剂对棉花安全性和杂草防除的效果。结果显示,与对照相比,不同药剂处理对‘冈棉11号’出苗率和第一果枝结位均没有显著性差异,但鲜重、株高和果枝数有增加趋势,表明试验药剂对棉花安全。田间药效结果显示,复配剂50%扑草净可湿性粉剂(WP)+33%二甲戊灵乳油(EC)、50%扑草净WP+960 g/L精异丙甲草胺EC和50%扑草净WP+50%乙草胺EC对禾本科和阔叶杂草均具有较好防效,45 d平均鲜重防效分别为83.32%、84.08%、80.57%,与单剂处理均存在极显著差异,且持效期较长,建议3种复配剂作为土壤处理除草剂用于棉田杂草防除。

关键词: 土壤处理除草剂, 棉田, 杂草, 防除效果, 安全性

Abstract:

In order to screen out suitable soil-applied herbicides in this area, the safety and weed control effects of seven soil-treated herbicides on cotton were compared and analyzed by using soil sealing treatment in field plot experiment. The results showed that there was no significant difference in the germination rate and first section of branch of ‘Gangmian No.11’ under different treatments compared with the control, but the fresh weight, plant height and the number of fruit branches increased, indicating that the soil-applied herbicides were safe for cotton. The results of field efficacy showed that 50% prometryn wettable powder (WP)+33% pendimethalin emulsifiable concentrate (EC), 50% prometryn WP+960 g/L metolachlor EC and 50% prometryn WP+50% acetochlor EC had better control effects on grasses and leaved weeds. The average fresh weight control effect of 45 d was 83.32%, 84.08% and 80.57%, respectively, which were significantly different from that of single treatment, and the lasting time was longer. 50% prometryn WP+33% pendimethalin EC, 50% prometryn WP+960 g/L metolachlor EC and 50% prometryn WP+50% acetochlor EC are recommended to be used for weed control in cotton field.

Key words: soil-applied herbicides, cotton field, weed, control effect, safety