CN114431243B - 一种除草组合物和应用 - Google Patents

一种除草组合物和应用 Download PDF

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CN114431243B
CN114431243B CN202111296454.4A CN202111296454A CN114431243B CN 114431243 B CN114431243 B CN 114431243B CN 202111296454 A CN202111296454 A CN 202111296454A CN 114431243 B CN114431243 B CN 114431243B
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CN114431243A (zh
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崔东亮
马宏娟
杨吉春
卢政茂
关爱莹
罗艳梅
商璐
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Jiangsu Yangnong Chemical Co Ltd
Shenyang Sinochem Agrochemicals R&D Co Ltd
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Shenyang Sinochem Agrochemicals R&D Co Ltd
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Abstract

本发明涉及一种除草剂组合物及其应用方法，组分A为具有如下结构式I所示的化合物：

Description

一种除草组合物和应用
技术领域
本发明属于农用除草剂领域，涉及一种除草组合物和应用。
背景技术
专利WO2016095768报道了如通式I所示的含异恶唑啉脲嘧啶类化合物：
Figure BDA0003336768400000011
通式I化合物具有很好的除草活性，可以有效地控制稗草、狗尾草、异型莎草、水莎草、马唐、荩草、苘麻、百日草、反枝苋、马齿苋、苍耳、龙葵、决明、野西瓜苗、野大豆等不同叶期的杂草的除草效果。
但由于除草剂长期使用会带来一定的耐药性，因此目前需要一种扩大杀草谱、降低使用量、防治抗性产生的有效途径解决这一问题。
发明内容
本发明的目的在于提供一种除草组合物和应用。
为实现上述目的，本发明的技术方案如下：
一种除草组合物，除草活性组分由组分A和组分B组成，组分A为具有如下结构式I所示的化合物；组分B选自HPPD抑制剂类、ALS抑制剂类、三嗪酮类、PPO类抑制剂类除草剂等中的一种或多种；所述组分A和组分B之间的重量比为1:100～100:1；
Figure BDA0003336768400000012
式I中：
R1选自甲基；
R2、R3可相同或不同，分别选自氢、氟或氯；
R4选自氢、氰基、甲基、乙基、正丙基、正丁基、异丙基、异丁基、叔丁基、三氟乙基、三氟甲基或CO2R6；
R5选自氢、甲基、乙基、叔丁基或三氟甲基；
R6选自氢、甲基、乙基、正丙基、正丁基、异丙基、异丁基、叔丁基、三氟乙基、烯丙基、炔丙基、甲氧基乙基、乙氧基乙基、甲基羰基氧基乙基、2-四氢呋喃亚甲基或3-四氢呋喃亚甲基。
优选所述的组合物，所述组分A为式Ⅰ所示的化合物，式I中：
R1选自甲基；
R2、R3可相同或不同，分别选自氢、氟或氯；
R4选自CO2R6；
R5选自氢、甲基、乙基、叔丁基或三氟甲基；
R6选自氢、甲基、乙基、正丙基、正丁基、异丙基、异丁基、叔丁基、三氟乙基、烯丙基、炔丙基、甲氧基乙基、乙氧基乙基、2-四氢呋喃亚甲基或3-四氢呋喃亚甲基。
组分B为吡草酮、吡唑特、苄草唑、氟吡草酮、硝磺草酮、苯唑草酮、环磺酮、磺酰草吡唑、吡氟酰草胺、异丙隆、甲基二磺隆、氟唑磺隆、双氟磺草胺、双氯磺草胺、五氟磺草胺、氯吡嘧磺隆、苯磺隆、环嗪酮、啶黄草胺、嗪草酮、苯嗪草酮、乙氧氟草醚中的一种或多种；
所述组分A和组分B之间的重量比为1:50～50:1。
进一步所述的除草剂，所述组分A为式Ⅰ所示的化合物，式I中：R1选自甲基；
R2、R3可相同或不同，分别选自氟或氯；
R4选自CO2R6；
R5选自氢、甲基、乙基或叔丁基；
R6选自氢、甲基、乙基、正丙基、正丁基、异丙基、异丁基或叔丁基；
组分B为吡草酮、吡唑特、硝磺草酮、苯唑草酮、环磺酮、磺酰草吡唑、吡氟酰草胺、异丙隆、甲基二磺隆、氟唑磺隆、双氟磺草胺、双氯磺草胺、五氟磺草胺、氯吡嘧磺隆、苯磺隆、环嗪酮、啶黄草胺、嗪草酮、苯嗪草酮、乙氧氟草醚中的一种或多种；
其中，组分A和组分B之间的重量比为1:25～25:1。
再进一步优选所述的组合物，所述组分A为式Ⅰ所示的化合物，式I中：R1选自甲基；
R2、R3可相同或不同，分别选自氟或氯；
R4选自CO2R6；
R5选自氢、甲基、乙基或叔丁基；
R6选自氢、甲基、乙基、异丙基、正丙基或正丁基；
组分B为硝磺草酮、苯唑草酮、环磺酮、磺酰草吡唑、吡氟酰草胺、异丙隆、甲基二磺隆、氟唑磺隆、双氟磺草胺、双氯磺草胺、五氟磺草胺、氯吡嘧磺隆、苯磺隆、环嗪酮、啶黄草胺、嗪草酮、乙氧氟草醚中的一种或多种；
其中，组分A和组分B之间的重量比为1:10～10:1。
一种所述的除草剂组合物在防除杂草中的应用。本发明除草剂施用于存在或预期存在的不希望植被的场所，及可以选择性或非选择性地用于存在或预期存在的不希望植被的场所。具体是可以施用于不希望植被生存的土壤中、不希望植被的茎叶，或作物种植前或播种后出苗前的烧荒及耐受作物及非耐受作物的苗后处理。
所述的除草剂施用于非耕地、果园、橡胶园、闲置耕地、橡胶园、桉树林、杉树林、森林、防火道、草坪、铁路、公路、机场及仓库场所。
所述耐受和非耐受作物选自水稻、玉米、豆类作物、油菜、蔬菜、棉花、甜菜、小粒谷物、大豆、花生、甘蔗、向日葵、栽培作物、木本植物。所述的果园包括苹果园、桃园、葡萄园、梨园、茶园、桑园、柑橘园。所述不希望的植被包括禾本科杂草、阔叶杂草、莎草科杂草、藻类、蕨类和木本灌木。
本发明提出的组合物具有以下优点：
1、本发明所涉及的两类活性成分分别具有较广的杀草谱，对禾本科杂草和阔叶杂草具有活性，但对不同的杂草具有不同的活性，本发明通过将两类组分的混用，使其达到具有非常明显的增效作用，进而提高了对杂草的防除效果，降低了各活性成分的用量；
2、本发明除草剂利用不同作用机制的互补，增加了对田间干旱、低温等不良环境的适应性，除草更彻底；
3、本发明除草剂扩大了施药适期，特别对较大叶龄杂草，持续抑制和防除作用增强；
4、本发明除草剂茎叶喷雾处理，可用于防除非耕地、果园、闲置耕地、橡胶园、桉树林、森林、防火道、草坪、铁路、公路、机场及仓库等场所的大多数杂草。
具体实施方式
本发明除草剂对禾本科杂草和阔叶杂草的协同增效作用可通过下列实施例作进一步说明，但本发明绝非仅限于此。其中，本发明除草剂活性组分为组分A和组分B，所述组分A为化合物A，组分B为HPPD抑制剂类、ALS抑制剂类、三嗪酮类、PPO类抑制剂类除草剂等中的一种。所有配比中的百分比均为重量百分比，活性组分以有效含量计算。
生物活性测定实施例
实施例采用本发明除草剂活性组分为化合物A分别与B复配对杂草的室内联合作用测定，A为具有通式I结构的化合物，其中，R1选自甲基，R2为F，R3为Cl，R4为CO2C2H5，R5为CH3；活性组分B为硝磺草酮、苯唑草酮、环磺酮、磺酰草吡唑、吡氟酰草胺、异丙隆、甲基二磺隆、氟唑磺隆、双氟磺草胺、双氯磺草胺、五氟磺草胺、氯吡嘧磺隆、苯磺隆、环嗪酮、啶黄草胺、嗪草酮、乙氧氟草醚中的一种。
通过室内盆栽试验，明确组合物对杂草的联合作用。
杂草培养方法为：将定量的杂草种子稗草、马唐、藜和反枝苋分别播于直径为7cm的装有营养土的纸杯中，播后覆土、镇压、淋水后在温室培养。禾本科杂草长至5～7叶期、阔叶杂草6～8叶期，茎叶喷雾处理，试验设3次重复。处理待药液自然风干，放于温室内按常规方法管理，根据杂草受抑制或死亡的情况，于处理后30天，进行目测防效调查。
药剂配制方法：供试药剂药剂样品均为原药，先用丙酮：二甲基甲酰(1：2，V/V)混合溶剂溶解，用1‰吐温80水配制成一定浓度的母液，然后按照试验方案配制不同剂量的处理液。
本发明采用Gowing法对提出的组合物的联合作用进行评价。
Figure BDA0003336768400000041
式中：
X—除草剂组分A用量为P时的杂草防效；
Y—除草剂组分B用量为Q时的杂草防效；
E0—除草剂组分A用量为P时的理论防效+除草剂组分B用量为Q时的理论防效；
E—除草剂组分A与除草剂组分B按上述比例混用后的实测防效。
当E-E0>10％时，为增效作用；当E-E0<-10％时，为拮抗作用；当E-E0值介于±10％时，为加成作用。
表1组分A与硝磺草酮混用对禾本科杂草的联合作用
Figure BDA0003336768400000042
表2组分A与硝磺草酮混用对阔叶杂草的联合作用
Figure BDA0003336768400000043
表3组分A与苯唑草酮混用对禾本科杂草的联合作用
Figure BDA0003336768400000051
表4组分A与苯唑草酮混用对阔叶杂草的联合作用
Figure BDA0003336768400000052
表5组分A与环磺酮混用对禾本科杂草的联合作用
Figure BDA0003336768400000053
表6组分A与环磺酮混用对阔叶杂草的联合作用
Figure BDA0003336768400000054
Figure BDA0003336768400000061
表7组分A与磺酰草吡唑混用对禾本科杂草的联合作用
Figure BDA0003336768400000062
表8组分A与磺酰草吡唑混用对阔叶杂草的联合作用
Figure BDA0003336768400000063
表9组分A与吡氟酰草胺混用对禾本科杂草的联合作用
Figure BDA0003336768400000064
表10组分A与吡氟酰草胺混用对阔叶杂草的联合作用
Figure BDA0003336768400000071
表11组分A与异丙隆混用对禾本科杂草的联合作用
Figure BDA0003336768400000072
表12组分A与异丙隆混用对阔叶杂草的联合作用
Figure BDA0003336768400000073
表13组分A与甲基二磺隆混用对禾本科杂草的联合作用
Figure BDA0003336768400000081
表14组分A与甲基二磺隆混用对阔叶杂草的联合作用
Figure BDA0003336768400000082
表15组分A与氟唑磺隆混用对禾本科杂草的联合作用
Figure BDA0003336768400000083
表16组分A与氟唑磺隆混用对阔叶杂草的联合作用
Figure BDA0003336768400000084
Figure BDA0003336768400000091
表17组分A与双氟磺草胺混用对禾本科杂草的联合作用
Figure BDA0003336768400000092
表18组分A与双氟磺草胺混用对阔叶杂草的联合作用
Figure BDA0003336768400000093
表19组分A与双氯磺草胺混用对禾本科杂草的联合作用
Figure BDA0003336768400000094
Figure BDA0003336768400000101
表20组分A与双氯磺草胺混用对阔叶杂草的联合作用
Figure BDA0003336768400000102
表21组分A与五氟磺草胺混用对禾本科杂草的联合作用
Figure BDA0003336768400000103
表22组分A与五氟磺草胺混用对阔叶杂草的联合作用
Figure BDA0003336768400000104
Figure BDA0003336768400000111
表23组分A与氯吡嘧磺隆混用对禾本科杂草的联合作用
Figure BDA0003336768400000112
表24组分A与氯吡嘧磺隆混用对阔叶杂草的联合作用
Figure BDA0003336768400000113
表25组分A与苯磺隆混用对禾本科杂草的联合作用
Figure BDA0003336768400000114
Figure BDA0003336768400000121
表26组分A与苯磺隆混用对阔叶杂草的联合作用
Figure BDA0003336768400000122
表27组分A与环嗪酮混用对禾本科杂草的联合作用
Figure BDA0003336768400000123
表28组分A与环嗪酮混用对阔叶杂草的联合作用
Figure BDA0003336768400000124
表29组分A与啶黄草胺混用对禾本科杂草的联合作用
Figure BDA0003336768400000125
Figure BDA0003336768400000131
表30组分A与啶黄草胺混用对阔叶杂草的联合作用
Figure BDA0003336768400000132
表31组分A与嗪草酮混用对禾本科杂草的联合作用
Figure BDA0003336768400000133
表32组分A与嗪草酮混用对阔叶杂草的联合作用
Figure BDA0003336768400000134
表33组分A与乙氧氟草醚混用对禾本科杂草的联合作用
Figure BDA0003336768400000135
Figure BDA0003336768400000141
表34组分A与乙氧氟草醚混用对阔叶杂草的联合作用
Figure BDA0003336768400000142
试验结果表明，组分A分别与不同的组分B混用，在不同比例下对阔叶杂草藜、反枝苋和禾本科杂草稗草、马唐均表现出明显的增效作用。

Claims (4)

1.一种除草组合物，其特征在于：除草活性组分由组分A和组分B组成，组分A为具有如下结构式I所示的化合物；
Figure 657131DEST_PATH_IMAGE001
式Ⅰ
式I中：
R1选自甲基；
R2为氟；
R3为氯；
R4选自CO2C2H5；
R5选自甲基；
组分B为硝磺草酮、苯唑草酮、环磺酮、磺酰草吡唑、吡氟酰草胺、异丙隆、双氯磺草胺、氯吡嘧磺隆、环嗪酮、嗪草酮、乙氧氟草醚中的一种；
所述组分A和组分B之间的重量比为1:50~10:1。
2.根据权利要求1所述的组合物，其特征在于所述组分A为式Ⅰ所示的化合物，式I中：R1选自甲基；
R2为氟；
R3为氯；
R4选自CO2C2H5；
R5选自甲基；
组分B为硝磺草酮、苯唑草酮、环磺酮、磺酰草吡唑、吡氟酰草胺、异丙隆、双氯磺草胺、氯吡嘧磺隆、环嗪酮、嗪草酮、乙氧氟草醚中的一种；
其中，组分A和组分B之间的重量比为1:25~10:1。
3.根据权利要求2所述的组合物，其特征在于：所述组分A为式Ⅰ所示的化合物，式I中：R1选自甲基；
R2为氟；
R3为氯；
R4选自CO2C2H5；
R5选自甲基；
组分B为硝磺草酮、苯唑草酮、环磺酮、磺酰草吡唑、吡氟酰草胺、异丙隆、双氯磺草胺、氯吡嘧磺隆、环嗪酮、嗪草酮、乙氧氟草醚中的一种；
其中，组分A和组分B之间的重量比为1:10~10:1。
4.一种权利要求1所述的除草组合物的应用， 其特征在于：所述除草组合物在防除杂草中的应用。
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