CN117397695B - 一种用于调节水稻催枯的敌草快复合除草剂及其制备方法 - Google Patents

一种用于调节水稻催枯的敌草快复合除草剂及其制备方法 Download PDF

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CN117397695B
CN117397695B CN202311713337.2A CN202311713337A CN117397695B CN 117397695 B CN117397695 B CN 117397695B CN 202311713337 A CN202311713337 A CN 202311713337A CN 117397695 B CN117397695 B CN 117397695B
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倪锋
刘奎涛
武步华
尹俊杰
徐源盛
祁玲民
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Jinan Brothers Crop Science Co ltd
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Abstract

本申请涉及农药技术领域,尤其涉及一种用于调节水稻催枯的敌草快复合除草剂及其制备方法。一种用于调节水稻催枯的敌草快复合除草剂,包括以下原料:敌草快50‑60份、唑草酮5‑8份、三氯吡氧乙酸2‑5份、油菜素内酯0.5‑0.8份、磷酸二氢钾3‑5份、磺化琥珀酸二辛脂钠盐0.05‑0.1份、生长调节剂5‑7份、复合表面活性剂2.22.8份、抗硬水剂2‑4份、增效剂2‑4份、水30‑40份。本申请制备的用于调节水稻催枯的敌草快复合除草剂能在水稻成熟后期快速脱水干燥,枯叶率96%以上,加速降低稻粒含水量、并能够保证水稻产量和品质,对提高水稻机械收割效率和质量,减少烘干、运输成本有重要作用。

Description

一种用于调节水稻催枯的敌草快复合除草剂及其制备方法
技术领域
本申请涉及农药技术领域,尤其涉及一种用于调节水稻催枯的敌草快复合除草剂及其制备方法。
背景技术
水稻是我国主要的粮食作物,种植面积大,产量居世界第一。我国水稻主产区主要是东北地区、长江流域、珠江流域。然而随着土地面积的减少和人工的费用的增加,晒谷场地严重减少特别是长江和珠江流域早稻收获期雨水较多,容易造成谷粒发霉。
目前,用于水稻催枯的成分主要有敌草快、百草枯、乙烯利等。百草枯对人畜有很强的口服毒性,急性中毒死亡率极高,目前尚无特效解毒药。在水稻收获前喷施百草枯催枯,药物会残留在水稻谷粒上,不利于人畜食用安全。目前的水稻催枯剂普遍存在施药后,药剂不能有效的附着在水稻叶上,导致水稻收割时枯叶率不佳、水稻含水量偏高等问题。
因此,急需开发一种枯叶率高的除草剂。
发明内容
本申请目的在于针对当前技术的不足,提供一种用于调节水稻催枯的敌草快复合除草剂及其制备方法。
第一方面,本申请提供一种用于调节水稻催枯的敌草快复合除草剂,采用如下技术方案:
一种用于调节水稻催枯的敌草快复合除草剂,包括以下质量份数的原料:敌草快50-60份、唑草酮5-8份、三氯吡氧乙酸2-5份、油菜素内酯0.5-0.8份、磷酸二氢钾3-5份、磺化琥珀酸二辛脂钠盐0.05-0.1份、生长调节剂5-7份、复合表面活性剂2.2-2.8份、抗硬水剂2-4份、增效剂2-4份、水30-40份。
通过采用上述技术方案,本申请的水稻催枯复合除草剂包含了多种原料,每种原料起到不同的作用,共同协调作用实现了对水稻的催枯效果。敌草快:作为主要活性成分,质量份数占了较大比例,具有很强的催枯水稻作用。唑草酮:是一种广谱除草剂,能与敌草快协同作用,快速催枯水稻。三氯吡氧乙酸:具有破坏植物细胞壁的作用,加速水稻的脱水干燥过程,降低水稻含水量。油菜素内酯:能够促进植物叶片的退绿和枯黄,加速水稻的脱水枯萎。磷酸二氢钾:作为调节剂,能够促进水稻的生长和发育,保证水稻产量和品质。磺化琥珀酸二辛脂钠盐:能够增加液体的黏稠度,提高复合除草剂的附着性和渗透力。生长调节剂:能够促进水稻植株的调节和生长,提高水稻机械收割效率和质量。复合表面活性剂:能够增加复合除草剂的黏稠度,提高附着性和渗透力。抗硬水剂:提高复合除草剂的抗硬水性,使其在硬水中使用效果更好,不受硬水中钙镁离子的影响。增效剂:可以增强复合除草剂的水稻的催枯效果,提高枯叶率。以上各组分在本申请中协调作用,既具有催枯作用,又能加速水稻的脱水干燥,保证水稻的产量和品质。抗硬水剂的加入提高了复合除草剂的抗硬水性,能够在硬水中发挥更好的作用。复合除草剂的配方能够在稻田中快速起效,减少烘干和运输成本,提高水稻机械收割效率和质量。
优选的,所述抗硬水剂的制备方法包括以下原料:沸石、乙二胺四乙酸二钠和聚丙烯酰胺,所述沸石、乙二胺四乙酸二钠和聚丙烯酰胺的质量份数比为30:1:1。
优选的,所述抗硬水剂的制备方法为:先将乙二胺四乙酸二钠配制为质量浓度为80g/L的乙二胺四乙酸二钠水溶液,聚丙烯酰胺配制为质量分数为10%的聚丙烯酰胺水溶液,按照三者质量比,先将沸石和乙二胺四乙酸二钠水溶液混合,然后烘干制得中间产物,再将中间产物与聚丙烯酰胺水溶液混合,真空干燥,研磨,过800目筛,得到抗硬水剂。
通过采用上述技术方案,在所述的复合除草剂中,抗硬水剂包括沸石、乙二胺四乙酸二钠和聚丙烯酰胺。它们的质量份数比为30:1:1。沸石是一种天然矿石,具有优良的吸附性能和离子交换能力。它可以吸附和去除水中的钙镁离子,减少硬水对复合除草剂的影响。通过使用沸石作为抗硬水剂,可以提高复合除草剂在硬水条件下的稳定性和效果。乙二胺四乙酸二钠(EDTA-2Na)是一种强螯合剂,具有很强的螯合金属离子的能力。在复合除草剂中,乙二胺四乙酸二钠可以与水中的钙镁离子形成稳定的络合物,阻止其与复合除草剂有效组分的结合,从而提高复合除草剂的药效。聚丙烯酰胺是一种增稠剂和分散剂,具有良好的增粘和分散效果。在复合除草剂中,聚丙烯酰胺可以增加溶液的黏度,改善药液的附着性和吸附性,提高复合除草剂在水稻上的附着性和传导性。这三种抗硬水剂的组合物在复合除草剂中的作用是协同的。沸石可以去除水中的钙镁离子,乙二胺四乙酸二钠可以与剩余的钙镁离子形成稳定的络合物,聚丙烯酰胺则可以增强药液的附着性和传导性。它们共同发挥作用,提高复合除草剂的抗硬水性能,减少钙镁离子对药效的影响,从而增加复合除草剂的效果和稳定性。
优选的,所述复合表面活性剂的制备方法包括以下原料:氯化铵、椰油酸单乙醇酰胺、脂肪醇聚氧乙烯醚硫酸钠、月桂酸酰胺丙基甜菜碱、聚乙烯吡咯烷酮和水,所述氯化铵、椰油酸单乙醇酰胺、脂肪醇聚氧乙烯醚硫酸钠、月桂酸酰胺丙基甜菜碱、聚乙烯吡咯烷酮和水的质量份数比为8:20:5:20:12:24。
优选的,所述复合表面活性剂的制备方法为:按照质量份数,首先将椰油酸单乙醇酰胺、脂肪醇聚氧乙烯醚硫酸钠和月桂酸酰胺丙基甜菜碱进行充分混合,混合后将1/3的水加入其中,再缓慢的加入聚乙烯吡咯烷酮,升温至52℃后,搅拌12min,再加入1/3的水,搅拌10min后,依次将氯化铵和剩余的水加入,充分搅拌后得到复合表面活性剂。
通过采用上述技术方案,本申请制备的复合表面活性剂起到增加药液黏度和稠度的作用。氯化铵具有增稠效果,椰油酸单乙醇酰胺和脂肪醇聚氧乙烯醚硫酸钠可以增加药液的黏度和粘度。月桂酸酰胺丙基甜菜碱可以改善药液的流动性和附着性。聚乙烯吡咯烷酮是一种高分子增稠剂,可以增加药液的黏度和稠度。这些组分相互协同作用,共同发挥复合表面活性剂的作用。它们可以增加复合除草剂的粘度和稠度,改善药液在水稻上的附着性和传导性,使药液能够更好地附着于水稻叶面和茎面,提高复合除草剂的效果和稳定性。
优选的,所述生长调节剂包括乙烯利和赤霉素,所述乙烯利和赤霉素的质量份数比为5:1-3。
通过采用上述技术方案, 生长调节剂在复合除草剂中的主要作用是促进水稻的生长和发育过程,并与其他成分协同作用,以实现调节水稻催枯的效果。乙烯利和赤霉素是两种常用的植物生长调节剂,它们具有以下作用:促进水稻生长:乙烯利可以延缓水稻衰老过程,促进植物生长;赤霉素可以促进水稻的伸长生长,使植株更加高大。协同作用:乙烯利和赤霉素在复合除草剂中的组合可以相互增强作用,提高调节水稻催枯的效果。它们可以共同促进水稻的生长和发育,调控水稻的脱水干燥过程,提高枯叶率。同时,它们也可以通过调节水稻的生长代谢,改善水稻的品质。
优选的,所述增效剂为松酯基植物油、棕榈仁油脂肪酸甲酯中的一种。
通过采用上述技术方案,增效剂在本申请中的作用是增强复合除草剂的催枯效果,并与其他成分协同作用,以实现调节水稻催枯的效果。松酯基植物油、棕榈仁油脂肪酸甲酯是常用的增效剂,它们具有以下作用:增效剂可以改善复合除草剂与水稻叶面的接触性,增加草杆表面的润湿性,从而提高除草剂在水稻叶面上的附着度,增加催枯效果。增效剂可以促进复合除草剂中的有效成分被草叶吸收并传导下移,加快杂草的脱水干燥过程,提高催枯效果。协同作用:增效剂与其他成分协同作用,如抗硬水剂提高复合除草剂的抗硬水性,使得复合除草剂与硬水相容性提升,减少硬水中钙镁离子与复合除草剂有效组分结合对除草剂药效的影响。
第二方面,本申请提供一种用于调节水稻催枯的敌草快复合除草剂的制备方法,采用如下的技术方案:
一种用于调节水稻催枯的敌草快复合除草剂的制备方法,采用上述一种用于调节水稻催枯的敌草快复合除草剂的原料,包括以下步骤:
S71、按照质量份数,将油菜素内酯溶于有机溶剂中,获得溶液A;
S72、按照质量份数,将敌草快、唑草酮、三氯吡氧乙酸、磷酸二氢钾、磺化琥珀酸二辛脂钠盐、生长调节剂、复合表面活性剂、抗硬水剂、增效剂和水混合,搅拌20-30分钟,再加入溶液A,搅拌5分钟,得到用于调节水稻催枯的敌草快复合除草剂。
优选的,所述有机溶剂为乙醇,所述乙醇与所述油菜素内酯的质量份数比为8:1-2。
综上所述,本申请的有益技术效果:
1. 快速脱水干燥:该复合除草剂能够在水稻成熟后期快速脱水干燥,枯叶率达到96%以上。这有助于加速降低种子的含水量,降低稻粒的含水量,进而减少烘干的需求,降低烘干成本和运输成本。
2. 提高水稻产量和品质:该复合除草剂能够调节水稻催枯,保证水稻产量和品质。通过去除水稻周围的杂草,减少竞争,促进水稻的生长,从而提高水稻产量。同时,水稻收获时的枯叶率高达96%,有利于提高水稻的质量。
3. 提高机械收割效率和质量:使用该复合除草剂可以有效地清除杂草,减少杂草对水稻收割机械的阻碍,提高机械收割效率。此外,枯叶率高也会减少机械收割时杂草的混入,提高机械收割的质量。
4. 抗硬水性增强:复合除草剂中的抗硬水剂能够提高复合除草剂的抗硬水性,使其更好地与硬水相容,提高钙镁离子的稳定指标和钙皂分散力。这可以减少硬水中钙镁离子与复合除草剂有效组分的结合,减轻硬水对复合除草剂药效的影响,提高催枯效果。
具体实施方式
下面将结合实施例对本申请的实施方案进行详细描述,但是本领域技术人员将会理解,下列实施例仅用于说明本申请,而不应视为限制本申请的范围。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市售购买获得的常规产品。
制备例1:抗硬水剂的制备
抗硬水剂的制备方法为:先将1kg乙二胺四乙酸二钠配制为质量浓度为80g/L的乙二胺四乙酸二钠水溶液,1kg聚丙烯酰胺配制为质量分数为10%的聚丙烯酰胺水溶液,再将30kg沸石和乙二胺四乙酸二钠水溶液混合,然后烘干制得中间产物,再将中间产物与聚丙烯酰胺水溶液混合,真空干燥,研磨,过800目筛,得到抗硬水剂。
制备例2:复合表面活性剂的制备
复合表面活性剂的制备方法为:首先将20kg椰油酸单乙醇酰胺、5kg脂肪醇聚氧乙烯醚硫酸钠和20kg月桂酸酰胺丙基甜菜碱进行充分混合,混合后将8kg水加入其中,再缓慢的加入12kg聚乙烯吡咯烷酮,升温至52℃后,搅拌12min,再加入8kg水,搅拌10min后,依次将8kg氯化铵和8kg水加入,充分搅拌后得到复合表面活性剂。
实施例1
一种用于调节水稻催枯的敌草快复合除草剂,包括以下质量份数的原料:敌草快50kg、唑草酮5kg、三氯吡氧乙酸2kg、油菜素内酯0.5kg、磷酸二氢钾3kg、磺化琥珀酸二辛脂钠盐0.05kg、生长调节剂5kg、复合表面活性剂2.2kg、抗硬水剂 2kg、松酯基植物油2kg、水30kg,生长调节剂包括乙烯利和赤霉素,所述乙烯利和赤霉素的质量份数比为5:1,抗硬水剂采用制备例1制备的抗硬水剂,复合表面活性剂采用制备例2制备的复合表面活性剂。
一种用于调节水稻催枯的敌草快复合除草剂的制备方法,采用上述一种用于调节水稻催枯的敌草快复合除草剂的原料,包括以下步骤:
S71、按照质量份数,将油菜素内酯溶于乙醇中,所述乙醇与所述油菜素内酯按照质量份数比为8:1,获得溶液A;
S72、按照质量份数,将敌草快、唑草酮、三氯吡氧乙酸、磷酸二氢钾、磺化琥珀酸二辛脂钠盐、生长调节剂、复合表面活性剂、抗硬水剂、松酯基植物油和水混合,搅拌20分钟,再加入溶液A,搅拌5分钟,得到用于调节水稻催枯的敌草快复合除草剂。
实施例2
一种用于调节水稻催枯的敌草快复合除草剂,包括以下质量份数的原料:敌草快60kg、唑草酮8kg、三氯吡氧乙酸5kg、油菜素内酯0.8kg、磷酸二氢钾5kg、磺化琥珀酸二辛脂钠盐0.1kg、生长调节剂7kg、复合表面活性剂2.8kg、抗硬水剂 4kg、棕榈仁油脂肪酸甲酯4kg、水40kg,生长调节剂包括乙烯利和赤霉素,所述乙烯利和赤霉素的质量份数比为5:3,抗硬水剂采用制备例1制备的抗硬水剂,复合表面活性剂采用制备例2制备的复合表面活性剂。
一种用于调节水稻催枯的敌草快复合除草剂的制备方法,采用上述一种用于调节水稻催枯的敌草快复合除草剂的原料,包括以下步骤:
S71、按照质量份数,将油菜素内酯溶于乙醇中,所述乙醇与所述油菜素内酯按照质量份数比为8:2,获得溶液A;
S72、按照质量份数,将敌草快、唑草酮、三氯吡氧乙酸、磷酸二氢钾、磺化琥珀酸二辛脂钠盐、生长调节剂、复合表面活性剂、抗硬水剂、棕榈仁油脂肪酸甲酯和水混合,搅拌30分钟,再加入溶液A,搅拌5分钟,得到用于调节水稻催枯的敌草快复合除草剂。
实施例3
一种用于调节水稻催枯的敌草快复合除草剂,包括以下质量份数的原料:敌草快55kg、唑草酮6kg、三氯吡氧乙酸3kg、油菜素内酯0.7kg、磷酸二氢钾4kg、磺化琥珀酸二辛脂钠盐0.08kg、生长调节剂6kg、复合表面活性剂2.5kg、抗硬水剂 3kg、棕榈仁油脂肪酸甲酯3kg、水35kg,生长调节剂包括乙烯利和赤霉素,所述乙烯利和赤霉素的质量份数比为5:2,抗硬水剂采用制备例1制备的抗硬水剂,复合表面活性剂采用制备例2制备的复合表面活性剂。
一种用于调节水稻催枯的敌草快复合除草剂的制备方法,采用上述一种用于调节水稻催枯的敌草快复合除草剂的原料,包括以下步骤:
S71、按照质量份数,将油菜素内酯溶于乙醇中,所述乙醇与所述油菜素内酯按照质量份数比为8:1.5,获得溶液A;
S72、按照质量份数,将敌草快、唑草酮、三氯吡氧乙酸、磷酸二氢钾、磺化琥珀酸二辛脂钠盐、生长调节剂、复合表面活性剂、抗硬水剂、棕榈仁油脂肪酸甲酯和水混合,搅拌25分钟,再加入溶液A,搅拌5分钟,得到用于调节水稻催枯的敌草快复合除草剂。
对比例1
与实施例3相同,不同之处,在于,采用等量的脂肪醇聚氧乙烯醚硫酸钠代替本申请制备的复合表面活性剂。
对比例2
与实施例3相同,不同之处,在于,采用等量的椰油酸单乙醇酰胺代替本申请制备的复合表面活性剂。
对比例3
与实施例3相同,不同之处,在于,采用等量的月桂酸酰胺丙基甜菜碱代替本申请制备的复合表面活性剂。
对比例4
与实施例3相同,不同之处,在于,采用等量的水代替棕榈仁油脂肪酸甲酯。
对比例5
与实施例3相同,不同之处,在于,采用等量的水代替三氯吡氧乙酸。
性能测试
试验地点选择在辽宁省东港市示范繁殖农场试验基地,排灌便利,土壤类型:盐滞型稻田土,pH值6.8,土壤有机质含量2.2%,机械插秧,株距20 cm,行距30cm,每个小区面积40 m2 ,小区周围设保护行隔开,随机排列。重复次数3次,试验设9个处理,共计27个小区。
试验方法:分别将实施例1-实施例3和对比例1-对比例5获得的敌草快复合除草剂按照200g/L敌草快复合除草剂150 mL/667m2的喷洒量进行喷洒30个小区,另外3个小区用清水喷洒,作用空白对照例。共施药1次。施药时处水稻成熟后期(收割前5 d),施药当天为晴天多云,微风,气温 24-30℃,试验期间多云天气4天,阴天1天,结果取平均值,所得结果见表1。测产后,每个小区随机取样100g稻粒,进行淀粉、粗蛋白质和氨基酸含量测定。测定方法依据《GB/T 17980.140-2004》进行,结果取平均值,所得结果见表2。
表1 枯叶率、含水量和千粒重
项目 枯叶率/% 含水量/% 千粒重/g
实施例1 96.1 17.2 23.59
实施例2 97.3 18.1 23.61
实施例3 98.8 16.2 23.59
对比例1 91.3 22.9 23.59
对比例2 90.2 23.5 23.6
对比例3 89.1 23.8 23.58
对比例4 83.2 25.6 23.59
对比例5 88.3 24.3 23.58
空白对比例 12.3 28.95 23.59
表2 淀粉、粗蛋白质和氨基酸含量
项目 淀粉含量/% 粗蛋白质含量/% 氨基酸含量/μmol/g
实施例1 76.55 7.61 12.51
实施例2 75.68 7.66 12.32
实施例3 76.12 7.62 11.98
对比例1 75.39 7.63 12.36
对比例2 75.39 7.58 12.57
对比例3 75.39 7.53 12.36
对比例4 75.39 7.39 13.02
对比例5 75.39 7.46 11.95
空白对比例 75.47 7.57 12.33
从由表1可知,实施例1-实施例3制备的敌草快复合除草剂,水稻的枯叶率在96.1-98.8%之间,水稻的含水量在16.2-18.1%之间。本申请制备的用于调节水稻催枯的敌草快复合除草剂能在水稻成熟后期快速脱水干燥,枯叶率96%以上,加速降低稻粒含水量、并能够保证水稻产量和品质,对提高水稻机械收割效率和质量,减少烘干、运输成本有重要作用。
从由表1可知,实施例3和对比例1-对比例3得到的敌草快复合除草剂的效果对比分析来看,采用本申请制备的复合表面活性剂制备的敌草快复合除草剂的催枯效果更好。
从由表1可知,实施例3和对比例4得到的敌草快复合除草剂的效果对比分析来看,棕榈仁油脂肪酸甲酯添加到敌草快复合除草剂中,能够加快水稻的脱水干燥过程,提高催枯效果。
从由表1可知,实施例3和对比例5得到的敌草快复合除草剂的效果对比分析来看,三氯吡氧乙酸添加到敌草快复合除草剂的催枯效果比较显著。
从由表1和2可知,实施例1-实施例3制备的敌草快复合除草剂,对水稻安全,对千粒重、品质无影响。
以上实施例仅用以解释说明本申请的技术方案而非对其限制,尽管上述实施例对本申请进行了具体的说明,相关技术人员应当理解,依然可对本申请的具体实施方式进行修改或者等同替换,而未脱离本申请精神和范围的任何修改和等同替换,其均应涵盖在本申请的保护范围之中。

Claims (4)

1.一种用于调节水稻催枯的敌草快复合除草剂,其特征在于,包括以下质量份数的原料:敌草快50-60份、唑草酮5-8份、三氯吡氧乙酸2-5份、油菜素内酯0.5-0.8份、磷酸二氢钾3-5份、磺化琥珀酸二辛脂钠盐0.05-0.1份、生长调节剂5-7份、复合表面活性剂2.2-2.8份、抗硬水剂2-4份、增效剂2-4份、水30-40份,其中,所述复合表面活性剂由以下质量份数的组分组成:氯化铵8份,椰油酸单乙醇酰胺20份,脂肪醇聚氧乙烯醚硫酸钠5份、月桂酸酰胺丙基甜菜碱20份,聚乙烯吡咯烷酮12份,水24份;
所述生长调节剂为乙烯利和赤霉素按照质量比为5:1-3的组合物;
所述抗硬水剂为沸石、乙二胺四乙酸二钠和聚丙烯酰胺按照质量比为30:1:1的组合物;
所述增效剂为松酯基植物油、棕榈仁油脂肪酸甲酯中的一种;
所述用于调节水稻催枯的敌草快复合除草剂的制备方法,包括以下步骤:
S71、按照质量份数,将油菜素内酯溶于有机溶剂中,获得溶液A;
S72、按照质量份数,将敌草快、唑草酮、三氯吡氧乙酸、磷酸二氢钾、磺化琥珀酸二辛脂钠盐、生长调节剂、复合表面活性剂、抗硬水剂、增效剂和水混合,搅拌20-30分钟,再加入溶液A,搅拌5分钟,得到用于调节水稻催枯的敌草快复合除草剂。
2.根据权利要求1所述一种用于调节水稻催枯的敌草快复合除草剂,其特征在于,所述复合表面活性剂的制备方法为:按照质量份数,首先将椰油酸单乙醇酰胺、脂肪醇聚氧乙烯醚硫酸钠和月桂酸酰胺丙基甜菜碱进行充分混合,混合后将1/3的水加入其中,再缓慢的加入聚乙烯吡咯烷酮,升温至52℃后,搅拌12min,再加入1/3的水,搅拌10min后,依次将氯化铵和剩余的水加入,充分搅拌后得到复合表面活性剂。
3.根据权利要求1所述一种用于调节水稻催枯的敌草快复合除草剂,其特征在于,所述抗硬水剂的制备方法为:先将乙二胺四乙酸二钠配制为质量浓度为80g/L的乙二胺四乙酸二钠水溶液,聚丙烯酰胺配制为质量分数为10%的聚丙烯酰胺水溶液,按照三者质量比,先将沸石和乙二胺四乙酸二钠水溶液混合,然后烘干制得中间产物,再将中间产物与聚丙烯酰胺水溶液混合,真空干燥,研磨,过800目筛,得到抗硬水剂。
4.根据权利要求1所述一种用于调节水稻催枯的敌草快复合除草剂,其特征在于,所述有机溶剂为乙醇,所述乙醇与所述油菜素内酯的质量比为8:1-2。
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