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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (30): 140-147.doi: 10.11924/j.issn.1000-6850.casb17080101

所属专题： 油料作物

• 植物保护 农药 • 上一篇    下一篇

除草剂混用苗期茎叶喷雾防除胡麻田杂草 与大面积应用示范

胡冠芳,牛树君,赵 峰,王玉灵,余海涛,李玉奇   

  1. 甘肃省农业科学院植物保护研究所,甘肃省农业科学院植物保护研究所,甘肃省农业科学院植物保护研究所,甘肃省农业科学院植物保护研究所,甘肃省农业科学院植物保护研究所,甘肃省农业科学院植物保护研究所
  • 收稿日期:2017-08-24 修回日期:2018-04-25 接受日期:2018-04-25 出版日期:2018-10-31 发布日期:2018-10-31
  • 通讯作者: 胡冠芳
  • 基金资助:
    国家胡麻产业技术体系草害防控岗位(CARS-17-GW-7)。

Mixing of Herbicides by Spraying on Stems and Leaves of Flax: Effects for Controlling Weeds in Flax Field and Large Area Application

  • Received:2017-08-24 Revised:2018-04-25 Accepted:2018-04-25 Online:2018-10-31 Published:2018-10-31

摘要： 为达到一次使用除草剂兼防胡麻田阔叶杂草与禾本科杂草，笔者开展了2 甲·辛酰溴等3 种新型阔叶杂草除草剂与高效氟吡甲禾灵等7 种禾本科杂草除草剂混用苗期茎叶喷雾防除胡麻田杂草试验。结果表明：40% 2 甲·辛酰溴EC 1500 mL/hm2或30%辛酰溴苯腈EC 1500 mL/hm2与108 g/L 高效氟吡甲禾灵EC 1500 mL/hm2等7 种禾本科杂草除草剂混用对胡麻田阔叶杂草均具优良防效，株防效和鲜重防效在94.17%~98.71%之间。40% 2 甲·辛酰溴EC 1500 mL/hm2或30%辛酰溴苯腈EC 1500 mL/hm2、80%溴苯腈SP 600 g/hm2与108g/L 高效氟吡甲禾灵EC 1500 mL/hm2或10%精喹禾灵EC 900 mL/hm2、50 g/L唑啉草酯EC 1350 mL/hm2、15%炔草酯WP 750 g/hm2混用对胡麻田禾本科杂草均具优良防效，株防效和鲜重防效在97.22%~100%之间。从安全性、兼防效果、用药成本和增产效果综合评价，40% 2 甲·辛酰溴EC 1500 mL/hm2或30%辛酰溴苯腈EC 1500 mL/hm2+108 g/L 高效氟吡甲禾灵EC 1500 mL/hm2或10%精喹禾灵EC 900 mL/hm2是苗期茎叶喷雾一次用药兼防胡麻田阔叶杂草与禾本科杂草的最佳组合，宜在胡麻生产中大面积推广应用。

Abstract: To control broadleaf weeds and grass weeds in flax field by spraying at one time, the authors carried out application test on 3 new types of broadleaf weeds herbicides including 40% MCPA- sodium and bromoxynil octanoate EC and 7 kinds of grass weeds herbicides including haloxyfop-P to control weeds in flax field by spraying on stems and leaves of flax seedling. The results showed that: 40% MCPA- sodium and bromoxynil octanoate EC 1500 mL/hm2 or 30% bromoxynil octanoate EC 1500 mL/hm2 mixed with 7 kinds of grass weeds herbicides including 108 g/L haloxyfop- P EC 1500 mL/hm2 had excellent control effects on broadleaf weeds in flax field, the plant and fresh weight control effects were between 94.17%-98.71%. 40% MCPA-sodium and bromoxynil octanoate EC 1500 mL/hm2 or 30% bromoxynil octanoate EC 1500 mL/hm2, 80% bromoxynil SP 600 g/hm2 mixed with 108 g/L haloxyfop-P EC 1500 mL//hm2 or 10% quizalofop-ethyl EC 900 mL/hm2, 50 g/L pinoxaden EC 1350 mL/hm2, 15% clodinafop-propargyl WP 750 g/hm2 had excellent control effects on grass weeds in flax field, the plant and fresh weight control effects were between 97.22%- 100%. Comprehensive evaluation from safety on flax, control effect, herbicides cost and yield effect, 40% MCPA-sodium and bromoxynil octanoate EC 1500 mL/hm2 or 30% bromoxynil octanoate EC 1500 mL/hm2 + 108 g/L haloxyfop-P EC 1500 mL/hm2 or 10% quizalofop-ethyl EC 900 mL/hm2 are the best combination for controlling broadleaf weeds and grass weeds in flax field by spraying on stems and leaves of flax at one time, which should be popularized and applied in flax production.