CN114794108A - 一种包含敌稗、噁唑酰草胺和硝磺草酮的除草组合物及其应用 - Google Patents
一种包含敌稗、噁唑酰草胺和硝磺草酮的除草组合物及其应用 Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
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Abstract
本发明提供一种包含敌稗、噁唑酰草胺和硝磺草酮的除草组合物，敌稗、噁唑酰草胺和硝磺草酮的质量配比为30‑40:4‑10:0.1‑2。所述的除草组合物具有显著的增效作用，可用于农作物一年生杂草的防除，具有较好的防治效果，可以有效降低活性成分的使用剂量，减缓杂草抗药性的产生。
Description
技术领域
本发明属于农药组合物领域，具体涉及一种包含敌稗、噁唑酰草胺和硝磺草酮的除草组合物及其应用。
背景技术
敌稗是一种具高度选择性的触杀型除草剂，其主要作用机理是破坏植物的光合作用，抑制呼吸作用与氧化磷酸化作用，干扰核酸与蛋白质合成等，使受害植物的生理机能受到影响，加速失水，叶片逐渐干枯，最后死亡。敌稗主要用于水稻秧田、直播田及本田防除稗草、牛毛毡；也可用于旱田防除马唐、狗尾草、水马齿、鸭舌草、苋、看麦娘等杂草幼苗。
噁唑酰草胺为芳氧苯氧酸酯类除草剂，能有效防除水稻田大多数一年生禾本科杂草，可有效防除水稻田主要杂草，如稗草、千金子、马唐和牛筋草，主要用于移栽和直播稻田除草。
硝磺草酮是一种新型的选择性内吸传导型玉米苗前和苗后除草剂，能够抑制类胡萝卜素的生物合成，使杂草出现白化后死亡，其可被植物的叶和根吸收，向顶向下传输。硝磺草酮能有效防除玉米田鸭跖草、苘麻、蓼、铁苋菜、藜、反枝苋等双子叶杂草，对马唐、稗草、狗尾草等单子叶杂草也有一定的防除作用。
上述三种药剂均是本领域常用除草剂，均具有明显的除草效果，通过选择两种或两种以上合适的除草剂复配能够预见可以实现各组分间在除草作用上的协同。例如：佛山市盈辉作物科学有限公司（CN109526972A）公开了一种除草剂组合物，其特征在于，活性成分包含敌稗和噁唑酰草胺，二者的重量比为220-300：6-14；并且公开了对稗草表现为显著的增效作用。安徽沙隆达生物科技有限公司（CN112741092A）一种除草剂组合物，活性成分包含硝磺草酮和敌稗；并公开了可用于水稻田一年生及部分多年生杂草的防除，具有显著的增效作用。合肥喜田生物科技有限公司（CN108391669A）公开了一种含噁唑酰草胺、敌稗与灭草松的混合除草剂。该公司（CN108522513A） 还公开了一种含二氯喹啉酸、敌稗与噁唑酰草胺的混合除草剂。佛山市盈辉作物科学有限公司（CN107306970A）公开了一种包含氰氟草酯、噁唑酰草胺和敌稗的除草组合物。海利尔药业集团股份有限公司（CN107361066A）公开了一种含有噁唑酰草胺的除草组合物，包含有效组分氰氟草酯、硝磺草酮与噁唑酰草胺，所述组分氰氟草酯、硝磺草酮与噁唑酰草胺的质量比为1-50:1-50:1-50。
除草剂受作物安全性所限，杀草谱也有限，单独使用一种除草剂单剂不能完全有效地控制玉米田杂草的发生，再者有些除草剂由于水溶性大或田间持效期太长、用量过大或施药不均匀都容易造成对当季作物或后茬作物的残留毒害。理想的复合除草剂除了保证其除草效果的协同增效以外，还应当兼顾到复合除草剂对作物生长、土壤污染以及对后茬危害等多方面影响。因此，提供一种理想的复合除草剂具有重要意义。现有技术中并没有将敌稗、噁唑酰草胺和硝磺草酮组合使用的相关报道。
发明内容
为解决现有技术中存在的问题，本发明提供以下技术方案：
一种包含敌稗、噁唑酰草胺和硝磺草酮的除草组合物，敌稗、噁唑酰草胺和硝磺草酮的质量配比为30-40:4-10:0.1-2。
本发明提供一种除草组合物，敌稗、噁唑酰草胺和硝磺草酮的质量配比为34-8：5-7:0.5-1.5。
本发明提供一种除草组合物，敌稗、噁唑酰草胺和硝磺草酮的质量配比为36：6.5:0.5。
本发明所述的除草组合物，还包含农药上可用辅料。组合物的剂型为可分散油悬浮剂、悬浮剂、可湿性粉剂、水分散粒剂、颗粒剂。特别是制备成可分散油悬浮剂。所述的辅料包含、乳化剂、润湿剂、分散剂、增稠剂、溶剂、防冻剂、pH调节剂等中的一种或多种。
本发明所述的除草组合物用于农作物杂草的防治的用途。所述的作物为水稻；所述的杂草为一年生杂草。
采用上述技术方案，本发明具有如下有益效果：
本发明的除草组合物具有显著的增效作用，可以减少活性成分的使用剂量，减缓杂草抗药性的产生，并且对农作物安全。
本发明制备的可分散油悬浮剂对水稻直播田一年生杂草具有优异的防除效果，活性成分用量为35g/亩时，其防效在93%以上。
具体实施方式
下面结合具体的实施方式对本发明做进一步的解释说明。
实施例1：复配除草组合物对稗草的室内联合作用测定
试验材料：稗草种子，田间采集保存备用
试验方法：将稗草种子催芽露白后种植于花盆中，于22-28℃、相对湿度65%-70%条件下培养;待各植株长至4-5叶期，分别取长势基本一致的稗草与反枝苋植株于生物测定前间苗，使得稗草处理组为20株/盆。采用用虹吸式雾化喷头喷施药液，每处理重复4次。喷雾处理14d后对植株地上部分称重，计算鲜重抑制率。
鲜重抑制率/%=［(对照区存活杂草鲜重－处理区存活杂草鲜重)/对照区存活杂草鲜重］×100。
联合作用：采用gowing评价组合物的联合作用。
测试结果：由表1可知，现有技术公开的二元组合物敌稗和噁唑酰草胺，在36 ga.i./亩+6.5 g a.i./亩时对稗草的防效为70.4%；防治效果较差，将敌稗、噁唑酰草胺和硝磺草酮组合使用后，除草组合物的防治效果显著提升，防效在91%以上；并且硝磺草酮与二元复配敌稗和噁唑酰草胺混合后，进一步表现出协同增效作用；可以显著提高除草效果，降低杂草抗药性的发生。
表1复配除草组合物对稗草的室内联合作用测定
由表1可知，现有技术公开的二元组合物敌稗和硝磺草酮，在36 g a.i./亩+1.0 ga.i./亩时对稗草的防效为55.4%；防治效果较差，将敌稗、噁唑酰草胺和硝磺草酮组合使用后，除草组合物的防治效果显著提升，防效在94%以上；并且噁唑酰草胺与二元复配敌稗和硝磺草酮混合后，进一步表现出协同增效作用；可以显著提高除草效果，降低杂草抗药性的发生。
表2复配除草组合物对稗草的室内联合作用测定
实施例3 制剂
43% 敌·噁唑·硝酮 可分散油悬浮剂，包含如下重量百分含量成分：
敌稗36%、噁唑酰草胺6.5%、硝磺草酮0.5%、十二烷基苯磺酸钙1.5%、TERSPERSE2020 3.5%、NNO 2%、乙二醇 2%、有机膨润土0.5%、油酸甲酯补足100%。
44% 敌·噁唑·硝酮 可分散油悬浮剂，包含如下重量百分含量成分：
敌稗36%、噁唑酰草胺7 %、硝磺草酮1%、木质素磺酸钙2%、TERSPERSE4894 4%、NNO2%、丙二醇 2.5%、有机膨润土0.5%、大豆油补足100%。
42.5% 敌·噁唑·硝酮 可分散油悬浮剂，包含如下重量百分含量成分：
敌稗36%、噁唑酰草胺5%、硝磺草酮1.5%、十二烷基苯磺酸钙2%、TERSPERSE20203%、NNO 3%、乙二醇 1.5%、白炭黑 0.5%、油酸甲酯补足100%。
实施例4复配除草组合物对水稻直播田杂草的田间防效
试验地：水稻直播田，田间杂草：稗草、千金子。
试验方法：小区随机区组排列，小区面积20m2，重复三次。施药时水稻为2叶期-2叶1心期，禾本科杂草为2-3叶期。采用茎叶喷雾处理，药液量450L/公顷。药后21d进行杂草鲜重总防效调查，调查方法为每小区调查5点，每点0.5ｍ2。
试验结果：由表3可知，本发明制备的可分散油悬浮剂对水稻直播田一年生杂草具有优异的防除效果，活性成分用量为35g/亩时，其防效在93%以上。
表3复配除草组合物对水稻直播田杂草的田间防效
| 处理 | 活性成分剂量g/亩 | 总防效% |
| 43% 敌·噁唑·硝酮 可分散油悬浮剂 | 35 | 95.1 |
| 44% 敌·噁唑·硝酮 可分散油悬浮剂 | 35 | 96.9 |
| 42.5% 敌·噁唑·硝酮 可分散油悬浮剂 | 35 | 93.8 |
| CK | - | - |
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制。
Claims (8)
1.一种包含敌稗、噁唑酰草胺和硝磺草酮的除草组合物，其特征在于，敌稗、噁唑酰草胺和硝磺草酮的质量配比为30-40:4-10:0.1-2。
2.根据权利要求1所述的除草组合物，其特征在于，敌稗、噁唑酰草胺和硝磺草酮的质量配比为34-8：5-7:0.5-1.5。
3.根据权利要求2所述的除草组合物，其特征在于，敌稗、噁唑酰草胺和硝磺草酮的质量配比为36：6.5:0.5。
4.根据权利要求1-3任一项所述的除草组合物，其特征在于，还包含农药上可用辅料。
5.根据权利要求4所述的除草组合物，其特征在于，组合物的剂型为可分散油悬浮剂、悬浮剂、可湿性粉剂、水分散粒剂、颗粒剂。
6.根据权利要求5所述的除草组合物，其特征在于，组合物的剂型为可分散油悬浮剂。
7.根据权利要求1-6任一项所述的除草组合物用于农作物杂草的防治的用途。
8.根据权利要求7所述的用途，其特征在于，所述的作物为水稻；所述的杂草为一年生杂草。
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| CN101731232A (zh) * | 2010-01-13 | 2010-06-16 | 刘雪源 | 防除稻田杂草茎叶除草剂组合物 |
| CN109526972A (zh) * | 2017-09-21 | 2019-03-29 | 佛山市盈辉作物科学有限公司 | 一种含有敌稗和噁唑酰草胺的除草剂组合物 |
| CN112741092A (zh) * | 2021-02-05 | 2021-05-04 | 安徽沙隆达生物科技有限公司 | 一种包含硝磺草酮和敌稗的除草组合物 |
| CN114246184A (zh) * | 2022-01-05 | 2022-03-29 | 定远众邦生物工程有限公司 | 一种除草组合物及其制剂 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101731232A (zh) * | 2010-01-13 | 2010-06-16 | 刘雪源 | 防除稻田杂草茎叶除草剂组合物 |
| CN109526972A (zh) * | 2017-09-21 | 2019-03-29 | 佛山市盈辉作物科学有限公司 | 一种含有敌稗和噁唑酰草胺的除草剂组合物 |
| CN112741092A (zh) * | 2021-02-05 | 2021-05-04 | 安徽沙隆达生物科技有限公司 | 一种包含硝磺草酮和敌稗的除草组合物 |
| CN114246184A (zh) * | 2022-01-05 | 2022-03-29 | 定远众邦生物工程有限公司 | 一种除草组合物及其制剂 |
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