CN105284877A - 一种含有苯嘧磺草胺的除草组合物 - Google Patents
一种含有苯嘧磺草胺的除草组合物 Download PDFInfo
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- CN105284877A CN105284877A CN201510731447.0A CN201510731447A CN105284877A CN 105284877 A CN105284877 A CN 105284877A CN 201510731447 A CN201510731447 A CN 201510731447A CN 105284877 A CN105284877 A CN 105284877A
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- glyphosate
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- quizalotop
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
一种含有苯嘧磺草胺、草甘膦与精喹禾灵的除草组合物,该除草组合物中有效成分苯嘧磺草胺、草甘膦与精喹禾灵的质量比为1~50:0.1~20:0.1~20,制剂中有效成分在制剂中的总质量占整个制剂质量的1%~60%,其余为农药中允许使用和接受的辅助成分,该所述除草组合物的剂型为乳油、悬浮剂、可湿性粉剂、水分散粒剂、水乳剂、微乳剂、颗粒剂、微胶囊剂、水剂。可有效防除水稻田主要杂草,如稗草、千金子、马唐和牛筋草等及冬小麦杂草看麦娘、野燕麦、棒头草、早熟禾、硬草、碱茅、多花黑麦草、毒麦、雀麦、蜡烛草、节节麦、茼草、冰草、荠菜、播娘蒿、牛繁缕等。
Description
技术领域
本发明涉及农药复配技术领域,特别是涉及一种含有苯嘧磺草胺、草甘膦与精喹禾灵的除草组合物。
背景技术
苯嘧磺草胺是由巴斯夫公司开发的脲嘧啶类除草剂。其化学名为N-[2-氯-4-氟-5-(3-甲基-2,6-二酮-4-(三氟甲基)-3,6-二氢-1(2H)嘧啶基)苯基]-N-异丙基-N-甲磺酰胺,可作为灭生性除草剂用,可有效防除多种阔叶杂草,包括对草甘膦,ALS和三嗪类产生抗性的杂草。具有很快的灭生作用且土壤残留降解迅速。可以用于防治小麦田阔叶杂草。
草甘膦主要是阻碍芳香氨基酸的生物合成,即苯丙氨酸、色氨酸及酪氨酸通过莽草酸途径的合成。它对5-烯醇丙酮酰莽草酸-3-磷酸合酶(EPSP合酶)有抑制作用,该酶可以催化莽草酸-3-磷酸和烯醇丙酮磷酸向5-烯醇丙酮酰莽草酸-3-磷酸(EPSP)的转化,因此草甘膦干扰这一生物合成的酶促反应,导致莽草酸在生物体内的积累。此外草甘膦也可以抑制其他植物酶和动物酶的活性。草甘膦在高等植物内的代谢十分缓慢,曾测试出其代谢物为氨甲基膦酸和甲氨基乙酸。正由于草甘膦在植物体内具有高度的运转性能、缓慢的降解性能和高度的植物毒性,决定了它是一个理想的防除多年生杂草的除草剂。
精喹禾灵是一种苯氧脂肪酸类除草剂,选择性内吸传导型茎叶处理剂。药剂在禾本科杂草与双子叶作物间有高度选择性,茎叶可在几小时内完成对药剂的吸收,一年生杂草在24h内可传遍全株。适用于棉花、大豆、油菜、花生、亚麻、苹果、葡萄、甜菜及多种宽叶蔬菜作物地防除单子叶杂草。提高剂量时,对狗牙根、白茅、芦苇等多年生杂草也有作用。
合理的化学除草剂复配或混配具有扩大除草谱,提高防治效果、延长施药适期、减少用药量、降低药害、减少残留、延缓抗药性的发生与发展等积极特点,除草剂复配或混配是解决上述问题的最为有效的方法之一。我们在室内筛选和田间试验的基础上,筛选出苯嘧磺草胺、草甘膦与精喹禾灵复配,具有明显的增效作用。且关于苯嘧磺草胺、草甘膦与精喹禾灵复配的除草组合物及应用目前尚无人报道过。
发明内容
基于以上情况,本发明目的在于提供一种新型高效的农药除草组合物。主要用于防除小麦田防除阔叶杂草、禾本科杂草。
本发明所述技术方案是通过以下措施来实现的:
一种含有苯嘧磺草胺、草甘膦与精喹禾灵的除草组合物,该除草组合物中有效成分苯嘧磺草胺、草甘膦与精喹禾灵的质量比为1~50:0.1~20:0.1~20,所述的本发明除草组合物经毒力测定实验验证,苯嘧磺草胺、草甘膦与精喹禾灵的质量比例在1~20:0.1~10:0.1~20时,增效效果较好。
所述的本发明除草组合物可以配制的农药剂型为乳油、悬浮剂、可湿性粉剂、水分散粒剂、水乳剂、微乳剂、颗粒剂、微胶囊剂。苯嘧磺草胺、草甘膦与精喹禾灵在制剂中的总质量占整个制剂质量的1%~60%,其中占5%~50%时,毒性和残留达到较好的平衡,成本也较低。
本发明所述除草组合物配制成的农药剂型的具体实施方案如下:
所述的除草组合物为乳油制剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;常规乳化剂10~30份;常规溶剂20~50份;常规增效剂1~5份。该乳油制剂的具体生产步骤为先将有效成分苯嘧磺草胺、草甘膦与精喹禾灵加入溶剂中完全溶解后再加入乳化剂、增效剂搅拌均匀后成均一透明的油状液体,灌装,即可制成本发明组合物的乳油制剂。
所述的除草组合物为悬浮剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;分散剂5~20份;防冻剂1~5份;增稠剂0.1~2份;消泡剂0.1~0.8份;促渗剂0~10份;pH值调节剂0.1~5份;水,余量。该悬浮剂的具体生产步骤为先将其他助剂混合,经高速剪切混合均匀,加入有效成分苯嘧磺草胺、草甘膦与精喹禾灵,在磨球机中磨球2~3小时,使粒直径均在5mm以下,即可制成本发明组合物的悬浮剂制剂。
所述的除草组合物是可湿性粉剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;分散剂3~10份;湿润剂1~5份;填料,余量。该可湿性粉剂的具体生产步骤为:按上述配方将有效成分苯嘧磺草胺、草甘膦与精喹禾灵以及分散剂、润湿剂和填料混合,在搅拌釜中均匀搅拌,经气流粉碎机后在混合均匀,即可制成本发明组合物的可湿性粉剂。
所述的除草组合物为水分散粒剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;分散剂3~10份;湿润剂1~10份;崩解剂1~5份;填料余量。该水分散粒剂的具体生产步骤为:按上述配方将有效成分苯嘧磺草胺、草甘膦与精喹禾灵和分散剂、润湿剂、崩解剂以及填料混合均匀,用超微气流粉碎机粉碎,经捏合,然后加入流化床造粒干燥机中进行造粒、干燥、筛分后经取样分析,即可制成本发明组合物的水分散粒剂。
所述的除草组合物为水乳剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;乳化剂3~30份;溶剂5~15份;稳定剂2~15份;防冻剂1~5份;消泡剂0.1~8份;增稠剂0.2~2份;水,余量。该水乳剂的具体生产步骤为:首先将苯嘧磺草胺、草甘膦与精喹禾灵、溶剂和乳化剂、助溶剂加在一起,使溶解成均匀的油相;将部分水,抗冻剂,抗微生物剂等其他的农药助剂混合在一起成均匀的水相;在反应釜中高速搅拌的同时将油相加入水相,缓缓加水直至达到转相点,开启剪切机进行高速剪切,并加入剩余的水,剪切约半小时,形成水包油型的水乳剂,即可制成本发明组合物的水乳剂。
所述的除草组合物为微乳剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;乳化剂10~30份,防冻剂1~8份,稳定剂0.5~10份,常规溶剂助溶剂20~50份。将苯嘧磺草胺、草甘膦与精喹禾灵用助溶剂完全溶解,再加入乳化剂、防冻剂稳定剂等其他成分,均匀混合,最后加入水,充分搅拌后即可配成微乳剂。
所述的除草组合物为颗粒剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;润湿分散剂1~10份;增稠剂0.1~5份;消泡剂0.1~5份;蓖麻油,余量补足。将有效成分苯嘧磺草胺、草甘膦与精喹禾灵、分散剂、稳定剂、消泡剂和溶剂等各组分按配方的比例混合,放入砂磨釜内研磨后,送入均质混合器内混匀即得成品。
所述的除草组合物为微胶囊剂,组分的质量份数为:草甘膦0.1~20份;苯嘧磺草胺1~50份;精喹禾灵0.1~20份;尿素5~20份;甲醛5~20份;乳化分散剂5~20份;防冻剂1~5份;增稠剂0.1~2份;消泡剂0.1~0.8份;水,余量。在装有搅拌装置的三口烧瓶中加入尿素和甲醛(物质的量比约为l:1.5~2.0),用氢氧化钠溶液调节溶液的pH值到8~9左右,然后升温至70~80℃,反应得到稳定的脲醛树脂预聚体。取一定量的苯嘧磺草胺、草甘膦与精喹禾灵溶于环己烷中,并在溶液中加入乳化分散剂,伴随剧烈搅拌,配成以含乳化分散剂的水溶液为水相的O/W型稳定乳液。将上述的脲醛树脂预聚体加入乳液中,调节pH值,在酸催化条件下发生聚合反应,使油相物质被包裹起来,形成微胶囊颗粒。缓慢升温,固化,温度控制在40~50℃,固化时间1h。选择加入适量的助剂,即可得稳定的微囊悬浮剂。
其中以上所述的乳化剂选自十二烷基苯磺酸钙与脂肪酸聚氧乙烯醚,烷基酚聚氧乙烯醚磺基琥珀酸酯,苯乙烯基苯酚聚氧乙烯醚,壬基酚聚氧乙烯醚,蓖麻油聚氧乙烯醚,脂肪酸聚氧乙烯基酯,聚氧乙烯脂肪醇醚中的任何一种或一种以上任意比组成的混合物。
所述的溶剂为二甲苯或生物柴油,甲苯,柴油,甲醇,乙醇,正丁醇,异丙醇,松节油,溶剂油,二甲基甲酰胺,二甲基亚砜,水等溶剂中的一种或一种以上任意比组成的混合物。
所述的分散剂选自聚羧酸盐,木质素磺酸盐,烷基酚聚氧乙烯醚甲醚缩合物硫酸盐,烷基磺酸盐钙盐,萘磺酸甲醛缩合物钠盐,烷基酚聚氧乙烯醚,脂肪酸聚氧乙烯酯,脂肪胺聚氧乙烯醚,甘油脂肪酸酯聚氧乙烯醚中的一个或多个。
所述的湿润剂选自十二烷基硫酸钠,十二烷基苯磺酸钙,拉开粉BX,湿润渗透剂F,烷基苯磺酸盐聚氧乙烯三苯依稀苯基磷酸盐,皂角粉,蚕沙,无患子粉中的一种或多种。
所述的崩解剂选自膨润土,尿素,硫酸铵,氯化铝,柠檬酸,丁二酸,碳酸氢钠中的一种或多种。
所述的增稠剂选自黄原胶,羧甲基纤维素,羧乙基纤维素,甲基纤维素,硅酸铝镁,聚乙烯醇中一种或多种。
所述的稳定剂选自柠檬酸钠,间苯二酚中的一种。
所述的防冻剂选自乙二醇,丙二醇,丙三醇中的一种或多种。
所述的消泡剂选自硅油,硅酮类化合物,C10-20饱和脂肪酸类化合物,C8-10脂肪醇的一种或多种。
所述的填料选自高岭土,硅藻土,膨润土,凹凸棒土,白炭黑,淀粉,轻质碳酸钙中的一种或多种。
本发明以有效成分为苯嘧磺草胺、草甘膦与精喹禾灵的复配除草剂具有明显的增效作用,延缓要害抗药性的产生,并降低了成产成本和使用成本,主要用于防除小麦田防除阔叶杂草、禾本科杂草。
具体实施方式
为使本发明的技术方案,目的以及优点更加清楚明白,本发明用以下具体实施例进行说明,但本发明并非局限于这些例子。本发明的效果实验采用田间试验的方式,如无特别说明,以下提及的比例都为质量份数比。
田间药效试验
试验在河南省小麦田试验基地,土壤肥力一致肥力中等,试验时湿度适中,试验地主要杂草有猪殃殃,雀麦等,杂草分布均匀。试验结果如下:
表1苯嘧磺草胺、草甘膦与精喹禾灵复配田间防效试验
大田试验结果表明,苯嘧磺草胺、草甘膦与精喹禾灵以比例复配对小麦田禾本科、阔叶草等杂草的防效均较好,根据田间目测,在试验剂量范围内,作物生长正常,未见植株产生药害及异常现象,说明其对小麦是安全的。
综上试验结果验证,本发明含有苯嘧磺草胺、草甘膦与精喹禾灵的除草组合物,主要用于防除小麦田防除阔叶杂草、禾本科杂草,且对靶标作物安全,与单剂相比,本发明除草组合物具有作用机理独特,有用量少,除草普更加广泛,持效期较长,更加环保等明显优点。所以,本发明的研发及推广有着重大的社会意义及环保意义。
Claims (4)
1.一种含有苯嘧磺草胺的除草组合物,其特征在于:该除草组合物的有效成分为苯嘧磺草胺、草甘膦与精喹禾灵三元复配,其中各组分的质量份数为:苯嘧磺草胺1~50份;草甘膦0.1~20份;精喹禾灵0.1~20份;其余为辅助成分。
2.根据权利要求1所述的除草组合物,其特征在于:苯嘧磺草胺、草甘膦与精喹禾灵的质量比为1~50:0.1~20:0.1~20。
3.根据权利要求1所述的除草组合物,其特征在于:苯嘧磺草胺、草甘膦与精喹禾灵在制剂中的总质重量占整个制剂质量的1%~60%。
4.根据权利要求1或2或3所述的除草组合物,其特征在于:该除草组合物可以配制的农药剂型为乳油、悬浮剂、可湿性粉剂、水分散粒剂、水乳剂、微乳剂、颗粒剂、微胶囊剂。
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