CN103828838B - 一种除草剂组合物 - Google Patents
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Abstract
本发明公开了一种用于植物叶面处理的除草组合物，该组合包含两种活性成分，分别是嘧啶肟草醚和草铵膦，嘧啶肟草醚和草铵膦的配比为1:5‑35，该除草组合物可有效的用于防治旱地特别是玉米田、大豆田、棉花田和非耕地的各种杂草。
Description
技术领域
本发明属于农药领域，涉及一种用于叶面处理的除草组合物。
背景技术
a)嘧啶肟草醚(pyribenzoxim)化学名称：O-[2，6-双-(4,6-
二甲
氧基-2-嘧啶基)氧基苯甲酰基]二苯甲酮肟。分子式为C32H27N508，结构式为：
嘧啶肟草醚是选择性输导型除草剂，其活性成分被植物茎叶吸收后，在体内迅速传导至幼嫩组织和根部，影响乙酰乳酸合成酶(ALS)的活性，抑制植物支链氨基酸的合成，从而使杂草枯死。该药剂被敏感植物吸收后，幼芽和根系停止生长，幼嫩组织发黄，进而整株出现死亡。
嘧啶肟草醚可防除众多的禾本科杂草和阔叶杂草。并对90余种阔叶杂草(包括了那些对莠去津，草甘膦以及乙酰乳酸合成酶抑制剂存在抗性的杂草)表现出除草效果好、作用快、残留期长等特性，能有效的防除藜、灰菜等小粒种子类阔叶杂草以及那些较难控制的大粒种子类杂草(如向日葵、苘麻和牵牛花等)表现出良好的植物选择性。嘧啶肟草醚对水稻、小麦、玉米、高粱、大豆、小谷类作物、棉花、水果以及坚果等30多种作物安全。使用剂量为30－45g(a.i.)/hm2。纯品为白色固体，纯品为白色固体。m.p.128～130℃，蒸气压<7.4×10-6Pa。在25℃时水中溶解度为3.5mg/L。丙酮中1.63g/L，已烷中0.4g/L，甲苯中110.8g/L。原药大鼠、小鼠急性经口LD50>5000mg/kg，大鼠急性经皮LD50>2000mg/kg，对皮肤、眼睛中等刺激性，无致敏性；致突变试验：Ames试验，小鼠微核试验均为阴性；大鼠(90天经口)亚慢性试验无作用剂量>2000mg/kg。属低毒除草剂。
b)N-(磷酸甲基)甘氨酸(通用名：草甘膦)或其盐或(RS)-2-氨基-4-(羟基甲基氧瞵基)丁酸铵(通用名：草铵膦)
草铵膦或其盐为广谱灭生性除草剂，可防除单子叶和双子叶、一年生和多年生、草本和灌木等40多科的植物。适用于防除旱地特别是玉米田、大豆田、棉花田、果园、茶园和非耕地的各种杂草。
发明内容
本发明的目的提供了一种具有增效作用的除草剂组合，该除草剂具有高效、低毒、低成本等诸多优点，对禾本科、莎草科及阔叶杂草均有很好的防效。并且具有选择性，杀草谱拓宽，对抗性杂草也能很好的防除。
本发明提供了一种用于叶面处理的除草剂组合物，该组合包含两种活性成分，分别是嘧啶肟草醚和草铵膦，两种活性成分的配比为1:5-35。
进一步的，所述组合物的剂型为悬浮剂、水乳剂、可乳化粉剂、油悬剂、水剂。
进一步的，其组份除两种活性成分外还包括溶剂、用作填料的白炭黑、轻钙的一种或几种。
进一步的，所述组合物用于玉米、大豆、高粱、棉花、水果、非耕地除草。
本发明所涉及到的助剂为NNO、拉开粉、十二烷基磺酸钠、木质素磺酸钠或钙、羧甲基纤维素，用于起乳化作用的农乳500号、600号等乳化剂，可以是一种或几种以上任意比例的混合物。
本发明所涉及到的所用的载体为粘土、陶土、硅藻土、高岭土、珍珠岩、白炭黑、轻钙、膨润土等中的一种或者一种以上任意比例的混合物。也可以是用水、二甲苯、甲苯、矿物油、植物油类做为溶剂的混合物。
本发明的除草剂组合通过茎叶喷雾处理，用于玉米田、大豆田、棉花田、果园、茶园和非耕地防除各种杂草。
本发明的活性成分嘧啶肟草醚和草铵膦共同施用，试验表明具有增效效果。活性比使用单个成分更为显著。增效效果表现为更宽的杂草控制谱、使用的剂量更低，除草作用起效更快、更持久的防治效果。通过一次施用就能很好地控制杂草。特别对莠去津，草甘膦以及乙酰乳酸合成酶抑制剂存在抗性的杂草表现出除草效果好、作用快、持效期长等特性，并能有效的防除藜、灰菜等小粒种子类阔叶杂草以及那些较难控制的大粒种子类杂草(如向日葵、苘麻和牵牛花等)表现出良好的植物选择性。
本发明的除草剂组合使用方便、成本低，对作物生长安全，其推广应用有巨大的经济效益和社会效益。
具体实施方式
实施例1
各组分的质量分数为：嘧啶肟草醚1％，草甘膦异丙胺盐40％，牛脂胺聚氧乙烯醚15％,二甲基甲酰胺5％,水添加至100％，配制成41％水剂。除草效果见表1
各组分的质量分数为：嘧啶肟草醚1％，草铵膦35％，聚氧乙烯失水山梨醇单油酸酯5％,羧甲基纤维素3％,水添加至100％，配制成36％嘧啶肟草醚·草铵膦悬浮剂。除草效果见表2
表1是实施例1所述的41％嘧啶肟草醚·草甘膦异丙胺盐水剂的试验数据对照表。对照药剂为5％嘧啶肟草醚乳油和41％草甘膦异丙胺盐水剂。
表1.41％嘧啶肟草醚·草甘膦异丙胺盐水剂防除玉米田杂草的防效效果(药后45天)
以上处理剂量对玉米生长安全。
实施例2
表2是实施例2所述的36％嘧啶肟草醚·草铵膦悬浮剂的试验数据对照表。对照药剂为5％嘧啶肟草醚乳油和200克/升草铵膦水剂。表2.36％嘧啶肟草醚·草铵膦悬浮剂防除大豆田杂草的防效效果(药后45天)
以上处理剂量对大豆生长安全。
Claims (4)
1.一种用于叶面处理的除草剂组合物，其特征在于：该组合包含两种活性成分，分别是嘧啶肟草醚和草铵膦，两种活性成分的配比为1:5-35。
2.根据权利要求1所述的除草剂组合物，其特征在于：所述组合物的剂型为悬浮剂、水乳剂、可乳化粉剂、油悬剂、水剂。
3.根据权利要求1或2所述的除草剂组合物，其特征在于：其组份除两种活性成分外还包括溶剂、用作填料的白炭黑、轻钙的一种或几种。
4.根据权利要求1或2所述的除草剂组合物，其特征在于：所述组合物用于玉米、大豆、高粱、棉花、水果、非耕地除草。
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| WO2022078972A1 (en) * | 2020-10-12 | 2022-04-21 | Basf Se | Herbicide combination comprising glufosinate, saflufenacil and trifludimoxazin |
| EP4000400A1 (en) * | 2020-11-17 | 2022-05-25 | Basf Se | Herbicide combination comprising glufosinate, saflufenacil and trifludimoxazin |
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| WO2006005490A2 (en) * | 2004-07-09 | 2006-01-19 | Basf Aktiengesellschaft | A method for controlling coniferous plants |
| WO2009156322A1 (en) * | 2008-06-26 | 2009-12-30 | Basf Se | A method for enhancing the rainfastness of glyphosate |
| ES2444494T3 (es) * | 2009-08-27 | 2014-02-25 | Basf Se | Formulaciones de concentrado acuoso que contienen saflufenacil y glifosato |
| BR112012012586B1 (pt) * | 2009-12-09 | 2017-07-25 | Basf Se | "concentrated formulation of suspension, use of the concentrated formulation of liquid suspension and method to control the understooded vegetation |
| WO2011104213A2 (de) * | 2010-02-26 | 2011-09-01 | Bayer Cropscience Ag | Herbizide zusammensetzung enthaltend die hydrate von saflufenacil und glyphosate oder glufosinate |
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2012
- 2012-11-27 CN CN201210499185.6A patent/CN103828838B/zh active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022078972A1 (en) * | 2020-10-12 | 2022-04-21 | Basf Se | Herbicide combination comprising glufosinate, saflufenacil and trifludimoxazin |
| EP4000400A1 (en) * | 2020-11-17 | 2022-05-25 | Basf Se | Herbicide combination comprising glufosinate, saflufenacil and trifludimoxazin |
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| CN103828838A (zh) | 2014-06-04 |
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