WO2020155605A1 - 一种含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物 - Google Patents

一种含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物 Download PDF

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WO2020155605A1
WO2020155605A1 PCT/CN2019/100696 CN2019100696W WO2020155605A1 WO 2020155605 A1 WO2020155605 A1 WO 2020155605A1 CN 2019100696 W CN2019100696 W CN 2019100696W WO 2020155605 A1 WO2020155605 A1 WO 2020155605A1
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mixture
herbicide composition
sodium
carboxamidosulfuron
methyl
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PCT/CN2019/100696
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English (en)
French (fr)
Inventor
余青云
易芬远
杨淑兰
黄科润
韦茂春
王超
方冬林
柯敏
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广西化工研究院有限公司
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72Biocides, 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
    • A01N43/80Biocides, 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 1,2
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N47/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof

Definitions

  • the invention belongs to the technical field of pesticides, and in particular relates to a herbicide composition containing sulfonepyrazole and carboxamidosulfuron.
  • Pyroxasulfone English name: Pyroxasulfone, chemical name: 3-[(5-Difluoromethoxy-1-methyl-3-trifluoromethylpyrazol-4-yl)-methylsulfonyl]- 4,5-Dihydro-5,5-dimethyl-1,2-oxazole.
  • Sulfonepyrazole is mainly absorbed by the coleoptile of monocotyledonous plants or hypocotyls of dicotyledonous plants. After absorption, it conducts upwards.
  • Carboxamidosulfuron English name: ForaMsulfuron, chemical name: 1-(4,6-dimethoxypyrimidin-2-yl)-3-(2-dimethylaminocarbonyl-5-formylaminophenyl) Sulfonylurea.
  • Carboxamidosulfuron-methyl is a sulfonylurea herbicide and an acetolactate synthase (ALS) inhibitor. It can be absorbed by the roots and leaves of weeds. It is rapidly transmitted in the plant body and hinders valine, isoleucine, The synthesis of leucine inhibits cell division and growth. After the sensitive weed roots and leaves absorb the drug, it is transmitted in the plant body.
  • ALS acetolactate synthase
  • the young shoots and roots quickly stop growing, and the young tissues turn yellow and then die.
  • Widely used in cereals such as corn (summer corn, spring corn), sugar cane, etc.; safe for subsequent crops such as wheat, barley, oats, cotton, soybeans, peas, rape, sugar beet, and potatoes. It has excellent activity on annual or perennial grass weeds and broadleaf weeds.
  • Gramineous weeds such as barnyardgrass, stephengrass, crabgrass, wild oats, brome, pseudosorghum, Poa, ryegrass, cricket grass, setaria, etc.; broadleaf weeds such as cocklebur, abutilon, Solanum, Polyporus, Portulaca, Amaranthus variabilis, Amaranthus amaranthus, Acanthopanax, Cocoon, Coatsweed, Humulus, Quinoa, Sorrel leaf Polygonum, Polygonum vulgare, Polygonum vulgare, Polygonum vulgare , Polygonum vulgare , Polygonum lilac, dandelion, blue vegetables, shepherd's purse, datura, chickweed, sage, field bindweed, etc.
  • broadleaf weeds such as cocklebur, abutilon, Solanum, Polyporus, Portulaca, Amaranthus variabilis, Amaranthus amaranthus, Acanthopana
  • Chloramben English name: Chloramben, chemical name: 3-amino-2,5-dichlorobenzoic acid, is a benzoic acid herbicide, the liquid is rapidly absorbed by the stems and leaves of weeds, and can pass through the xylem duct and transpiration
  • the flow conducts together, and can also be combined with photosynthesis products to conduct in the phloem sieve, and accumulate in the meristem (growth point) of the plant, and then produce toxic effects. It is widely used in wheat field, corn field, peanut field, sunflower field, cabbage, kidney bean, pepper, sugar beet, tomato and other vegetable fields to control annual broad-leaved weeds and a variety of gramineous weeds.
  • the main target is barnyard grass. , Crabgrass, Kan Mai Niang, Setaria viridis and other annual weeds.
  • Farmland weeds compete with crops for nutrients, water, sunlight and space, hindering the ventilation and light transmission in the field, thereby reducing the yield and quality of crops; many weeds are intermediate hosts or lodging sites for pathogenic microorganisms and pests, which can cause diseases and pests happened.
  • the control of weeds in farmland is an important part of agricultural production. Weeds in sugarcane fields mainly include barnyardgrass, thrush, iron thread, goosegrass, cocklebur, crabgrass, stephen, cyperus rotundus, clover, setaria, purslane, etc.
  • the herbicides in sugarcane fields are mainly formulated with one or more active ingredients such as atrazine, simazine, oxyfluorfen, metolachlor, alachlor, and 2-methyl-4 chloride.
  • active ingredients such as atrazine, simazine, oxyfluorfen, metolachlor, alachlor, and 2-methyl-4 chloride.
  • the purpose of the present invention is to provide a herbicide composition containing sulfonepyrazole and carboxamidosulfuron-methyl, which can effectively control the annual grass family through the dual compound use of sulfonepyrazole and carboxamidosulfuron-methyl.
  • Weeds, Cyperaceae weeds and broadleaf weeds expand the weed spectrum and enhance the weeding effect of sugarcane fields.
  • the herbicide composition containing sulfonepyrazole and carboxamidosulfuron-methyl of the present invention includes the following effective ingredients in parts by weight: 1-80 parts of sulfonepyrazole and 1-50 parts of carboxamidosulfuron.
  • the herbicide composition also includes 5-90 parts of chlormethuron.
  • the herbicide composition includes the following effective ingredients in parts by weight: 20-70 parts of chlormethan, 1-30 parts of sulfonepyrazole, and 1-15 parts of carboxamidosulfuron.
  • the herbicide composition is combined with a solvent and auxiliary materials to prepare a liquid preparation
  • auxiliary materials are emulsifiers, dispersants, thickeners, defoamers, antifreeze agents, pH regulators, stabilizers, and auxiliary materials.
  • auxiliary materials are emulsifiers, dispersants, thickeners, defoamers, antifreeze agents, pH regulators, stabilizers, and auxiliary materials.
  • the solvent is water, glycerin, dimethyl sulfoxide, ethanol, propylene glycol, polyethylene glycols, sesame oil, soybean oil, cottonseed oil, peanut oil, liquid paraffin, ethyl oleate, isopropyl myristate One or a mixture of two or more;
  • the emulsifier is fatty acid soap, alkyl sulfonate, alkyl phenyl sulfate, phosphate, amine, quaternary ammonium salt, polyoxyethylene type, ethylene oxide and propylene oxide block copolymer, One or a mixture of two or more of fatty acid esters of polyhydric alcohols, polyvinyl alcohol, lecithin, lanolin, and gum arabic;
  • the dispersant is water glass, sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, triethylhexyl phosphoric acid, sodium lauryl sulfate, methylpentanol, cellulose derivatives, polyacrylamide, One or a mixture of two or more of Gur gum and fatty acid polyethylene glycol ester;
  • the thickening agent is methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, silicon gel, starch, gelatin, sodium alginate, casein, guar gum , Chitosan, gum arabic, xanthan gum, soy protein gum, natural rubber, lanolin, agar, polyacrylamide butadiene rubber, styrene butadiene rubber, polyurethane, modified polyurea, one or a mixture of two or more ;
  • the defoaming agent is soybean oil, corn oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropanolamine ether, polyoxypropylene glyceryl ether and polyoxypropylene polyoxyethylene glyceryl ether, polydimethyl One or a mixture of two or more siloxanes;
  • the antifreeze agent is one or a mixture of two or more of calcium chloride, methanol, ethanol, ethylene glycol, propylene glycol, glycerol, lubricating oil, sugar, and honey;
  • the pH adjusting agent is one or a mixture of two or more of glacial acetic acid, phosphoric acid, benzoic acid, citric acid, sodium dihydrogen phosphate, sodium hydroxide, and disodium hydrogen phosphate;
  • the said stabilizer is one or a mixture of two or more of alkyl, aryl phosphate, phosphite, polyol, alkyl sulfonate and its substituted ammonium salt and substituted epoxy;
  • the cosolvent is one or a mixture of two or more of cyclohexanone, pyrrolidone, dimethylformamide and acetonitrile.
  • the herbicide composition is combined with auxiliary materials to form a solid preparation
  • the auxiliary material is one of a wetting agent, a dispersant, a stabilizer, an anti-decomposition agent, a disintegrant, a binder, and an inert filler Or a mixture of the two.
  • preparation method of the solid preparation of the herbicide composition includes the following steps:
  • the wetting agent is sodium lauryl sulfate, sodium dodecylbenzene sulfonate, calcium dodecylbenzene sulfonate, polyoxyethylene alkyl phenyl ether, styryl phenol, and formaldehyde resin , Polyoxyethylene ether, alkylphenol formaldehyde condensate, polyacrylate, pull open powder BX, penetrant T, private plate 20, tea dry powder, saponaria powder, soap powder, one of Tween series Or a mixture of two or more;
  • the dispersant is one or a mixture of two or more of lignin and its salts, cellulose derivatives, alginates, alkylnaphthalene sulfonates, and salts of formaldehyde condensates;
  • the stabilizer is one or two of magnesium stearate, zinc laurate, dibutyltin laurate, di-n-butyltin dodecyl mercaptan, butyl hydroxyanisole, epichlorohydrin, and benzoate A mix of the above;
  • the anti-decomposition agent is one or a mixture of two or more of zeolite, quicklime, magnesium oxide, salicylic acids, benzophenones, vitamin C, and antioxidants;
  • the disintegrant is sodium tripolyphosphate, metal stearate, dry starch, sodium carboxymethyl starch, low-substituted cellulose, polyvinylpyrrolidone, sodium bicarbonate, citric acid, bentonite, and ammonium sulfate One or a mixture of two or more;
  • the inert filler is kaolin, diatomaceous earth, talc, gypsum, montmorillonite, bentonite, attapulgite, dolomite, white carbon black, starch, light calcium carbonate, attapulgite, dolomite, white carbon One or a mixture of two or more of black, starch, and light calcium carbonate;
  • the binder is one or a mixture of two or more of gelatin, rubber, polyvinyl acetal, polycarbonate, nylon and polyfeng.
  • the invention is suitable for weeding in sugarcane fields, and is mainly used for controlling annual broad-leaved weeds, gramineous weeds and Cyperaceae weeds.
  • the herbicide composition is used to control crabgrass, barnyardgrass, setaria, steppe, goosegrass, wild grass, cyperus rotundus, purslane, cocklebur, nightshade, bidens, trifolium Red Thistle, Fennel, Datura, Mustela Flower.
  • the herbicide composition prepared has a significantly improved herbicidal effect than a single agent, and can be well controlled Crabgrass, Barnyard, Setaria, Gooseweed, Wild Grass, Cyperaceae, Amaranthus, Polygonum, Xanthium, Solanum, Portulaca, Fennel, Datura, Red Thistle, Mustela Petal flowers, etc., especially effective control of the current gradual increase in drug resistance of iron thread grass, old crabgrass, goosegrass, red thistle, cyperus rotundus, bermudagrass, so
  • the present invention adds additives of different components to the composition, so that the present invention has the advantages of high active component content, low environmental pollution, good wetting performance, and stable heat storage performance; because the herbicide composition has better herbicidal effects than The single dose has been significantly improved, greatly reducing the pesticide dosage.
  • Example 1 25% sulfone metazazazole ⁇ carboxamidosulfuron-methyl wettable powder
  • Example 2 50% sulfone metazazazole ⁇ carboxamidosulfuron-methyl water dispersible granules
  • Sulfonazole 40kg carboxamidosulfuron 10kg, Tween 18kg, private 20-8kg, alkyl naphthalene sulfonic acid 7kg, lignin 5kg, polyvinylpyrrolidone 2kg, kaolin 10kg.
  • Example 3 36% sulfone metazazone ⁇ carboxamidosulfuron-methyl microemulsion
  • Sulfonepyrazole 30kg carboxamidosulfuron-methyl 6kg, calcium dodecylbenzenesulfonate 8kg, methylpentanol 10kg, polyol fatty acid ester 6kg, silicone 5kg, toluene 5kg, N, N-di 20 kg of methyl formamide and 10 kg of water.
  • the suspension concentrate can be obtained after passing the test.
  • Example 6 50% chlorpheniramine ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl wettable powder
  • Example 7 62% chlormethan ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl water dispersible granules
  • Example 8 46% chlormethan ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl water dispersible granules
  • Example 9 56% chlormethan ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl dry suspended granules
  • the suspension concentrate can be obtained after passing the test.
  • Example 11 49% chlormethuron ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl oil suspension
  • Example 12 54% chlormethan ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl EC
  • Example 13 38% chlormethan ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl microemulsion
  • Example 14 68% chlorpheniramine ⁇ sulfonepyrazole ⁇ carboxamidosulfuron-methyl wettable powder
  • Example 15 Indoor Toxicity Determination of Sulfone Conazole and Carboxamidosulfuron to Trifolium repens, Crabgrass and Cyperus rotundus
  • the stem and leaf spray method was used to refer to the NY/T 1155.4-2006 Pesticide Indoor Bioassay Test Guidelines for Herbicide Part 4: Activity Determination Test The stem and leaf spray method was used for the experiment. Each treatment was repeated 4 times, and each repeated 15 plants. The drug treatment is a blank control.
  • the statistical analysis method of the data refers to NY/T 1155.7-2006 Pesticide Indoor Bioassay Test Guidelines for Herbicide Part 7: Gowing method in the determination of the combined effect of mixing, and calculate the theoretical survival rate E 0 value and actual survival rate of each mixed combination. E value and the difference between theoretical value and actual value (EE 0 ).
  • E is the actual measured value of the control for the fresh weight inhibition rate of the target weed when sulfonepyrazole and carboxamidosulfuron are mixed.
  • EE 0 > 10% is synergistic effect
  • EE 0 ⁇ -10% is synergistic antagonism
  • EE 0 value of ⁇ 10% is synergistic additive effect.
  • the data in Table 1 show that the co-toxicity coefficients of sulfonepyrazole and carboxamidosulfuron-methyl are both >-10%, and there is no antagonistic effect, indicating that sulfonepyrazole
  • the compound herbicide of azole and carboxamidosulfuron-methyl is feasible.
  • the dosages of sulfonepyrazole and carboxamidosulfuron are (40+10)gai/ha, (60+15)gai/ha, (80+20)gai/ha, (100+25)gai/ha
  • the best dosage-mass ratio of sulfonepyrazole and carboxamidosulfuron-methyl is 4:1.
  • the data in Table 2 show that the co-toxicity coefficients of metazazazole and carboxamidosulfuron-methyl paired with crabgrass are both >-10%, and there is no antagonistic effect.
  • the dosages of sulfonepyrazole and carboxamidosulfuron are (40+10)gai/ha, (60+15)gai/ha, (80+20)gai/ha, (100+25)gai/ha
  • the best dosage-mass ratio of sulfonepyrazole and carboxamidosulfuron-methyl is 4:1.
  • the data in Table 2 shows that the co-toxicity coefficients of metazazazole and carboxamidosulfuron-methyl paired with crabgrass are both >-10%, which has an additive synergistic effect.
  • the dosages of sulfonepyrazole and carboxamidosulfuron are (40+10)gai/ha, (60+15)gai/ha, (80+20)gai/ha, (100+25)gai/ha
  • the best dosage-mass ratio of sulfonepyrazole and carboxamidosulfuron-methyl is 4:1.
  • Example 16 Indoor toxicity determination of sulfonepyrazole, carboxamidosulfuron-methyl and chlorpheniramine on Trifolium repens, crabgrass, and Cyperus rotundus
  • the stem and leaf spray method was used, referring to the NY/T 1155.4-2006 Pesticide Indoor Bioassay Test Guidelines for Herbicide Part 4: Activity Determination Test The stem and leaf spray method was used for the experiment. Each treatment was repeated 4 times, and each repeated 15 plants. The drug treatment is a blank control.
  • the statistical analysis method of the data refers to the NY/T 1155.7-2006 Pesticide Indoor Bioassay Test Guidelines for Herbicide Part 7: Colby method in the determination of the combined effect of mixing, and calculate the theoretical survival E 0 value and actual survival rate of each mixed combination E value and the difference between theoretical value and actual value (E 0 -E).
  • n the number of varieties of mixed herbicides
  • E 0 The theoretical value of the inhibition rate of the target weed fresh weight when the three medicaments of methamphetamine, sulfonepyrazole and carboxamidosulfuron-methyl are mixed
  • E is the actual measured value of the control of the fresh weight inhibition rate of the target weed when chlorpyrim, sulfonepyrazole, and carboxamidosulfuron-methyl are used together.
  • E 0 -E>10% is synergistic effect
  • E 0 -E ⁇ -10% is synergistic antagonism
  • E 0 -E value is between ⁇ 10% Synergistic effect.
  • the combination of herbicides was evaluated according to the Colby method.
  • the data in Table 4 show that the co-toxicity coefficient of the ternary combination of chlorpheniramine, sulfonepyrazole, and carboxamidosulfuron-methyl on the trilobite bipyridin is all >-10%, and there is no antagonistic effect. This shows that the compound herbicides of chlorpheniramine, sulfonepyrazole and carboxamidosulfuron are feasible.
  • the E 0 -E values are all greater than 20%, and the compound herbicide has obvious synergistic effects.
  • the combination method of herbicides was evaluated according to the Colby method.
  • the data in Table 5 show that the E 0 -E value of the ternary combination of methamur, sulfonepyrazole, and sulfenylsulfuron for crabgrass is greater than 20%, and the compound herbicide It has obvious synergistic effect.
  • the best quality mixing ratio of metazazazole and carboxamidosulfuron-methyl is 4:1.
  • the results of Tables 4, 5, and 6 show that at the dose of (500 ⁇ 900) g ai/ha, sulfamethoxazole at a dose of 60 g ai/ha, and carboxamidosulfuron at a dose of 15 g ai/ha, Mixed use shows obvious synergistic effect, E0-E>20.
  • the optimal mixing ratio range is (500 ⁇ 900):60:15, namely (35 ⁇ 60):4:1.
  • Example 17 Application of invention examples in sugarcane fields
  • test agents are the products prepared in Examples 2-10, and the control agents are 20% chlorpheniramine microemulsion, 60% sulfone metazoxazole water dispersible granules, and 3% formamidosulfuron-methyl oil suspension.
  • the concentration of the test agent is 700a.ig/hm 2
  • the concentration of 20% chlorpheniramine microemulsion is (2000 ⁇ 4000) aig/hm 2 (according to the recommended dosage of the product)
  • 60% sulfone metazoxazole The use concentration of water dispersible granules is (125 ⁇ 250) aig/hm 2 (according to the recommended dosage of the product), and the use concentration of 3% formamidosulfuron-methyl oil suspension is (30 ⁇ 60) aig/hm 2 (according to Product recommended dosage).
  • the test method refers to GB/T 17980.49-2000 Pesticide Field Efficacy Test Guidelines (1) Herbicides to control weeds in sugarcane fields. The test results are shown in Table 7.
  • control effect (%) (CK weed number-medicine weed number)/CK weed number ⁇ 100%.
  • the field efficacy test results in Table 7 show that the field control effects (fresh weight control effects) of the herbicidal composition of methamuron, sulfonepyrazole, and carboxamidosulfuron-methyl all exceed 80%.
  • the treatment efficacy and herbicidal spectrum of the 6-14 compound preparations are better than those of the control agent: 20% chlorpheniramine microemulsion, 60% sulfone metazoxazole water dispersible granules, and 3% formamidosulfuron-methyl oil suspension ;
  • Example 7 has the most obvious effect, with a total grass control effect of 95.8%.
  • the herbicidal composition of each example is safe to sugarcane.
  • the embodiment of the present invention has better economic benefits for weeding.

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Abstract

本发明公开了一种含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物,包括以下重量份的有效成分:砜吡草唑1-80份、甲酰胺基嘧磺隆1-50。本发明用于甘蔗地防除一年生阔叶杂草、禾本科杂草和莎草科杂草,主要防治马唐、稗草、狗尾草、千金子、牛筋草、野稷、香附子、马齿苋、苍耳、龙葵、三叶鬼针草、胜红蓟、茴麻、曼陀罗、鼬瓣花。本发明通过砜吡草唑、甲酰胺基嘧磺隆的组合使用,增强除草剂的药性作用,对甘蔗地的杂草防效优于各组分单独使用时的活性,同时扩大了除草谱。另外,该除草剂组合对甘蔗安全性好,符合农药制剂的安全性要求。

Description

一种含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物 技术领域
本发明属于农药技术领域,特别是涉及一种含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物。
背景技术
砜吡草唑,英文名称:Pyroxasulfone,化学名称:3-[(5-二氟甲氧基-1-甲基-3-三氟甲基吡唑-4-基)-甲基磺酰基]-4,5-二氢-5,5-二甲基-1,2-噁唑。砜吡草唑主要通过单子叶植物的胚芽鞘或双子叶植物的下胚轴吸收,吸收后向上传导,通过阻碍蛋白质合成而抑制细胞生长,也抑制植物的呼吸作用,使杂草幼芽、幼根生长停止,进而死亡;也作为电子传递链的抑制剂和解偶联剂可抑制植物的光合作用,并能干扰植物体蛋白质的生物合成,影响细胞***,影响膜的生物合成及完整性。广泛用于玉米、棉花、豆类、花生、马铃薯、油菜、大蒜、烟草、向日葵、蓖麻、大葱等田防除一年生禾本科杂草和部分小粒种子的阔叶杂草。对马唐、狗尾草、牛筋草、稗草、千金子、看麦娘、野燕麦、早熟禾、硬草、画眉草等一年生禾本科杂草有特效,对藜科、苋科、蓼科、鸭跖草、牛繁缕、莬丝子等阔叶杂草也有一定的防效。
甲酰胺基嘧磺隆,英文名称:ForaMsulfuron,化学名称:1-(4,6-二甲氧基嘧啶-2-基)-3-(2-二甲氨基羰基-5-甲酰氨基苯基磺酰基)脲。甲酰胺基嘧磺隆为磺酰脲类除草剂,是乙酰乳酸合成酶(ALS)抑制剂,能被杂草根和叶吸收,在植株体内迅速传导,阻碍缬氨酸、异亮氨酸、亮氨酸合成,抑制细胞***和生长,敏感杂草根和叶吸收药剂后,在植株体内传导,幼芽和根迅速停止生长,幼嫩组织发黄,随后枯死。广泛用于谷物类如玉米(夏玉米、春玉米)、甘蔗等;对后茬作物如小麦、大麦、燕麦、棉花、大豆、豌豆、油菜、甜菜、马铃薯等安全。对一年生或多年生禾本科杂草和阔叶杂草均有优异的活性。禾本科杂草如稗草、千金子、马唐、野燕麦、雀麦、假高粱、早熟禾、看麦娘、黑麦草、蟋蟀草、狗尾草等;阔叶杂草如苍耳、苘麻、龙葵、猪殃殃、马齿苋、反枝苋、铁苋菜、刺儿菜、苣荬菜、鸭趾草、葎草、藜、酸模叶蓼、柳叶刺蓼、卷茎蓼、水蓼、丁香蓼、蒲公英、遏蓝菜、荠菜、曼陀罗、繁缕、萹蓄、田旋花等。
草灭畏,英文名称:Chloramben,化学名称:3-氨基-2,5-二氯苯甲酸,为苯甲酸类除草剂,药液被杂草的茎叶迅速吸收,既能通过木质部导管与蒸腾流一起 传导,也能与光合作用产物结合在韧皮部的筛管内传导,并在植物的分生组织(生长点)中积累,继而发生毒害作用。草灭畏广泛用于小麦田、玉米田、花生田、向日葵田、甘蓝、菜豆、辣椒、甜菜、番茄等蔬菜田中防治一年生阔叶杂草和多种禾本科杂草,作用对象主要是稗草、马唐、看麦娘、狗尾草等一年生杂草。
农田杂草与作物争夺养料、水分、阳光和空间,妨碍田间通风透光,从而降低了作物的产量和质量;许多杂草是致病微生物和害虫的中间寄主或寄宿地,会导致病、虫害的发生。农田杂草防除是农业生产的重要工作。甘蔗地杂草主要有稗草、画眉草、铁线草、牛筋草、苍耳、马唐、千金子、香附子、三叶鬼针、狗尾草、马齿苋等。目前甘蔗田除草剂主要有莠去津、西玛津、乙氧氟草醚、异丙甲草胺、甲草胺、2甲4氯等一个或几个有效成分配制而成。长期使用单一或相同的除草剂,部分杂草对其抗性逐渐增强,杂草防治效果不理想。
发明内容
本发明的目的在于提供一种含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物,通过砜吡草唑、甲酰胺基嘧磺隆的二元复配使用,有效防除一年生禾本科杂草、莎草科杂草和阔叶杂草,扩大除草谱,增强甘蔗地的除草效果。
为达到上述目的,本发明的技术方案为:
本发明的含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物,包括以下重量份的有效成分:砜吡草唑1-80份、甲酰胺基嘧磺隆1-50份。
进一步,所述的除草剂组合物,还包括草灭畏5-90份。
进一步,所述的除草剂组合物,包括以下重量份的有效成分:草灭畏20-70份、砜吡草唑1-30份、甲酰胺基嘧磺隆1-15份。
进一步,所述的除草剂组合物,与溶剂和辅料配合制成液体制剂,所述的辅料为乳化剂、分散剂、增稠剂、消泡剂、防冻剂、pH调节剂、稳定剂、助溶剂、溶剂中的一种或两种以上的混合。
进一步,所述的溶剂为水、甘油、二甲基亚砜、乙醇、丙二醇、聚乙二醇类、麻油、豆油、棉籽油、花生油、液体石蜡、油酸乙酯、肉豆蔻酸异丙酯中的一种或两种以上的混合;
所述的乳化剂为脂肪酸皂、烷基磺酸盐、烷基苯基硫酸盐、磷酸盐、胺类、季铵盐、聚氧乙烯型、环氧乙烷和环氧丙烯嵌段共聚物、多元醇的脂肪酸酯、聚 乙烯醇、卵磷脂、羊毛脂、***树胶中的一种或两种以上的混合;
所述的分散剂为水玻璃、三聚磷酸钠、六偏磷酸钠、焦磷酸钠、三乙基己基磷酸、十二烷基硫酸钠、甲基戊醇、纤维素衍生物、聚丙烯酰胺、古尔胶、脂肪酸聚乙二醇酯中的一种或两种以上的混合;
所述的增稠剂为甲基纤维素、羧甲基纤维素、羟乙基纤维素、羟丙基甲基纤维素、硅凝胶、淀粉、明胶、海藻酸钠、干酪素、瓜尔胶、甲壳胺、***树胶、黄原胶、大豆蛋白胶、天然橡胶、羊毛脂、琼脂、聚丙烯酰胺顺丁橡胶、丁苯橡胶、聚氨酯、改性聚脲中的一种或两种以上的混合;
所述的消泡剂为豆油、玉米油、聚氧乙烯聚氧丙烯季戊四醇醚、聚氧乙烯聚氧丙醇胺醚、聚氧丙烯甘油醚和聚氧丙烯聚氧乙烯甘油醚、聚二甲基硅氧烷中的一种或两种以上的混合;
所述的防冻剂为氯化钙、甲醇、乙醇、乙二醇、丙二醇、丙三醇、润滑油、砂糖、蜂蜜中的一种或两种以上的混合;
所述的pH调节剂为冰醋酸、磷酸、苯甲酸、柠檬酸、磷酸二氢钠、氢氧化钠、磷酸氢二钠中的一种或两种以上的混合;
所述的稳定剂为烷基、芳基磷酸酯、亚磷酸酯、多元醇、烷基磺酸酯及其取代铵盐、取代环氧物中的一种或两种以上的混合;
所述的助溶剂为环己酮、吡咯烷酮、二甲基甲酰胺、乙腈中的一种或两种以上的混合。
进一步,所述的除草剂组合物,与辅料配合制成固体制剂,所述辅料为润湿剂、分散剂、稳定剂、抗分解剂、崩解剂、粘结剂、惰性填料中的一种或两种的混合。
进一步,所述的除草剂组合物,其固体制剂的制备方法包括以下的步骤:
将各有效成分和惰性填料混合,粉碎成细粉,加入润湿剂、分散剂、稳定剂、抗分解剂、崩解剂,混合均匀制成粉剂;
或者在粉剂的基础上,加入适量的粘结剂进一步制备成颗粒剂。
进一步,所述的润湿剂为十二烷基硫酸钠、十二烷基苯磺酸钠、十二烷基苯磺酸钙、聚氧乙烯烷基苯基醚、苯乙烯基苯酚、甲醛树脂、聚氧乙烯醚、烷基酚甲醛缩合物、聚丙烯酸盐、拉开粉BX、渗透剂T、私盘20、茶枯粉、皂角粉、 无患子粉、吐温系列中的一种或两种以上的混合;
所述的分散剂为木质素及其盐、纤维素衍生物、藻酸盐、烷基萘磺酸盐、甲醛缩合物的盐中的一种或两种以上的混合;
所述的稳定剂为硬脂酸镁、月桂酸锌、月桂酸二丁基锡、十二硫醇二正丁基锡、丁基羟基茴香醚、环氧氯丙烷、苯甲酸盐中的一种或两种以上的混合;
所述的抗分解剂为沸石、生石灰、氧化镁、水杨酸类、二苯酮类、维生素C、抗氧化剂中的一种或两种以上的混合;
所述的崩解剂为三聚磷酸钠、硬脂酸金属盐、干淀粉、羧甲基淀粉钠、低取代纤维素、聚乙烯吡咯烷酮、碳酸氢钠、枸橼酸、膨润土、硫酸铵中的一种或两种以上的混合;
所述的惰性填料为高岭土、硅藻土、滑石、石膏、蒙脱石、膨润土、凹凸棒土、白云石、白炭黑、淀粉、轻质碳酸钙土、凹凸棒土、白云石、白炭黑、淀粉、轻质碳酸钙中的一种或两种以上的混合;
所述的粘结剂为明胶、橡胶、聚乙烯醇缩醛、聚碳酸醋、尼龙、聚枫中的一种或两种以上的混合。
本发明适用于甘蔗地除草,主要用于防除一年生阔叶杂草、禾本科杂草和莎草科杂草。
进一步,所述的除草剂组合物用于防治马唐、稗草、狗尾草、千金子、牛筋草、野稷、香附子、马齿苋、苍耳、龙葵、三叶鬼针草、胜红蓟、茴麻、曼陀罗、鼬瓣花。
现有技术中,由于长期使用单一除草剂,小飞蓬、老龄马唐、牛筋草、香附子、铁线草等在甘蔗地及其它农田的发生量逐渐增大,抗药性逐渐增大,局部地区上升为主要杂草。
本发明具有以下有益效果:
本发明将两种不同作用机理和杀草谱的除草剂砜吡草唑、甲酰胺基嘧磺隆按照一定的比例混配,表现出一定的增效作用,增加作用靶标位点,扩大杀草谱;砜吡草唑、甲酰胺基嘧磺隆再与草灭畏配合使用,增效作用更加明显,制备的除草剂组合物的除草效果比单剂有了明显地提高,能够很好的防治马唐属、稗属、狗尾草属、牛筋草、野稷、莎草科、苋属、蓼属、苍耳属、龙葵、马齿苋、茴麻、 曼陀罗、胜红蓟、鼬瓣花等,特别是能有效防除目前抗药性逐渐增加的铁线草、老龄马唐、牛筋草、胜红蓟、香附子、狗牙根、酢浆等恶性杂草,且该除草剂组合物对甘蔗安全,应用于甘蔗地除草,具有除草效果好、对人畜毒性低、对环境友好的特点,符合农药制剂的安全性要求。
本发明在组合物中加入了不同组分的助剂,使得本发明具有活性组分含量高、环境污染小、润湿性能好、热储性能稳定的优点;由于除草剂组合物的除草效果比单剂有了明显地提高,大大降低了农药的使用剂量。
具体实施方式
为了使本发明的目的、技术方案及优点更加简洁明了,本发明用以下具体实施例进行说明,但本发明绝非仅限于这些例子。以下所述仅为本发明较好的实施例,仅用于描述本发明,不能理解为对本发明的范围限制。应当指出的是,凡在本发明的精神和原则之内所做的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
实施例1:25%砜吡草唑·甲酰胺基嘧磺隆可湿性粉剂
本实施例的除草剂组合物原料用量为:
砜吡草唑20kg,甲酰胺基嘧磺隆5kg,渗透剂T12kg,苯乙烯基苯酚10kg,羧甲基淀粉钠10kg,淀粉8kg,膨润土35kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入锥形混合机中混合均匀,后经气流粉碎机粉碎,粉碎后的物料再经锥形混合机混合,混合后的物料细度98%通过600目标准筛,即制得可湿性粉剂。
实施例2:50%砜吡草唑·甲酰胺基嘧磺隆水分散粒剂
本实施例的除草剂组合物原料用量为:
砜吡草唑40kg,甲酰胺基嘧磺隆10kg,吐温18kg,私盘20 8kg,烷基萘磺酸7kg,木质素5kg,聚乙烯吡咯烷酮2kg,高岭土10kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入锥形混合机中混合均匀,后经气流粉碎机粉碎,粉碎后的物料再经锥形混合机混合,混合后的物料细度98%通过600目标准筛,加入捏合机中捏合成可塑性物料,最后将此物料放入挤压造粒机中挤压造粒,造粒后经干燥、筛分后即制得相应重量百分比的草灭畏·砜吡草唑·甲酰胺基嘧磺隆水分散 粒剂。
实施例3:36%砜吡草唑·甲酰胺基嘧磺隆微乳剂
本实施例的除草剂组合物原料用量为:
砜吡草唑30kg,甲酰胺基嘧磺隆6kg,十二烷基苯磺酸钙8kg,甲基戊醇10kg,多元醇的脂肪酸酯6kg,有机硅5kg,甲苯5kg,N,N-二甲基甲酰胺20kg,水10kg。
本实施例的除草剂组合物的制备方法为:
将上述物料(除水外)一起加入反应釜混合机中,搅拌90min,充分混合,再一边搅拌一边慢慢加入水,再搅拌30min,充分混合均匀后,即得微乳剂。
实施例4:30%砜吡草唑·甲酰胺基嘧磺隆乳油
本实施例的除草剂组合物原料用量为:
砜吡草唑24kg,甲酰胺基嘧磺隆6kg,亚甲基双萘磺酸钠8kg,脂肪酸聚乙二醇酯8kg,聚丙烯酰胺10kg,卵磷脂6kg,聚氧丙烯甘油醚5kg,吡咯烷酮5kg,甘油28kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入反应釜混合机中,搅拌90min,充分混合,再一边搅拌一边慢慢加入水,再搅拌30min,充分混合均匀后,即得乳油。
实施例5:60%砜吡草唑·甲酰胺基嘧磺隆悬浮剂
本实施例的除草剂组合物原料用量为:
砜吡草唑50kg,甲酰胺基嘧磺隆10kg,十二烷基硫酸钠8kg,环氧丙烯嵌段共聚8kg,羧甲基纤维素5kg,聚二甲基硅氧烷3kg,丙二醇8kg,水8kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入到反应釜混合机中,搅拌40min,混合均匀后经砂磨机砂磨2~3h,砂磨机压力≤0.2MPa,研磨时间物料流速为350~400kg/h,物料温度≤40℃,经检测合格即得悬浮剂。
实施例6:50%草灭畏·砜吡草唑·甲酰胺基嘧磺隆可湿性粉剂
本实施例的除草剂组合物原料用量为:
草灭畏45kg,砜吡草唑4kg,甲酰胺基嘧磺隆1kg,烷基芳基聚氧乙烯基醚8kg,十二烷基苯磺酸钠8kg,环氧氯丙烷5kg,硫酸铵10kg,轻质碳酸钙19kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入锥形混合机中混合均匀,后经气流粉碎机粉碎,粉碎后的物料再经锥形混合机混合,混合后的物料细度98%通过600目标准筛,即制得可湿性粉剂。
实施例7:62%草灭畏·砜吡草唑·甲酰胺基嘧磺隆水分散粒剂
本实施例的除草剂组合物原料用量为:
草灭畏50kg,砜吡草唑10kg,甲酰胺基嘧磺隆2kg,十二烷基苯磺酸钠8kg,硫酸铵7kg,聚壳糖5kg,聚二甲基硅氧烷4kg,白炭黑4kg,轻质碳酸钙10kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入锥形混合机中混合均匀,后经气流粉碎机粉碎,粉碎后的物料再经锥形混合机混合,混合后的物料细度98%通过600目标准筛,加入捏合机中捏合成可塑性物料,最后将此物料放入挤压造粒机中挤压造粒,造粒后经干燥、筛分后即制得相应重量百分比的草灭畏·砜吡草唑·甲酰胺基嘧磺隆水分散粒剂。
实施例8:46%草灭畏·砜吡草唑·甲酰胺基嘧磺隆水分散粒剂
本实施例的除草剂组合物原料用量为:
草灭畏36kg,砜吡草唑8kg,甲酰胺基嘧磺隆2kg,木质素磺酸钠10kg,羧甲基纤维素钠8kg,可溶性淀粉7kg,磷酸氢二钠5kg,月桂酸锌二丁基锡10kg,膨润土14kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入锥形混合机中混合均匀,后经气流粉碎机粉碎,粉碎后的物料再经锥形混合机混合,混合后的物料细度98%通过600目标准筛,加入捏合机中捏合成可塑性物料,最后将此物料放入挤压造粒机中挤压造粒,造粒后经干燥、筛分后即制得相应重量百分比的草灭畏·砜吡草唑·甲酰胺基嘧磺隆水分散粒剂。
实施例9:56%草灭畏·砜吡草唑·甲酰胺基嘧磺隆干悬浮粒剂
本实施例的除草剂组合物原料用量为:
草灭畏50kg,砜吡草唑5kg,甲酰胺基嘧磺隆1kg,木质素磺酸钠8kg,烷基萘磺酸钙10kg,硫酸钠8kg,羧甲基纤维素钠5kg,聚乙烯醇5kg,丁基 羟基茴香醚8kg。
本实施例的除草剂组合物的制备方法为:
将上述物料和水一起加入到配料槽中,搅拌均匀,然后用高速剪切机进行粗粉碎,再进入两级砂磨机细磨,磨细后进入压力喷雾干燥塔干燥、造粒,喷雾干燥塔底部出的成品,即制得干悬浮粒剂。
实施例10:33%草灭畏·砜吡草唑·甲酰胺基嘧磺隆悬浮剂
本实施例的除草剂组合物原料用量为:
草灭畏30kg,砜吡草唑2kg,甲酰胺基嘧磺隆1kg,十二烷基苯磺酸钙10kg,拉开粉BX 8kg,聚乙烯醇7kg,异丙醇10kg,去离子水32kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入到反应釜混合机中,搅拌40min,混合均匀后经砂磨机砂磨2~3h,砂磨机压力≤0.2MPa,研磨时间物料流速为350~400kg/h,物料温度≤40℃,经检测合格即得悬浮剂。
实施例11:49%草灭畏·砜吡草唑·甲酰胺基嘧磺隆油悬浮剂
本实施例的除草剂组合物原料用量为:
草灭畏42kg,砜吡草唑6kg,甲酰胺基嘧磺隆1kg,苯乙烯基苯基聚氧乙烯醚8kg,丙二醇7kg,甲基萘磺酸钠5kg,丁基羟基茴香醚2kg,有机膨润土6kg,玉米油23kg。
本实施例的除草剂组合物的制备方法为:
将上述物料(有机膨润土除外)一起加入到反应釜混合机中,搅拌2小时,再将物料注入砂磨机中研磨,研磨后的物料细度98%通过1-5um后出料,物料再与事先溶解好的有机膨润土一起放入高速剪切机中,剪切乳化后即可制得油悬浮剂。
实施例12:54%草灭畏·砜吡草唑·甲酰胺基嘧磺隆乳油
本实施例的除草剂组合物原料用量为:
草灭畏50kg,砜吡草唑3kg,甲酰胺基嘧磺隆1kg,聚丙烯酰胺8kg,十二烷基硫酸钠12kg,二苯酮2kg,羧甲基淀粉钠6kg,二甲苯18kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入反应釜混合机中,搅拌90min,充分混合均匀至均液相,即制得乳油。
实施例13:38%草灭畏·砜吡草唑·甲酰胺基嘧磺隆微乳剂
本实施例的除草剂组合物原料用量为:
草灭畏30kg,砜吡草唑6kg,甲酰胺基嘧磺隆2kg,三苯乙烯基酚环氧乙烷化磷酸三乙醇胺钠9kg,苯乙基酚聚氧乙烯醚8kg,十二烷基苯磺酸钙10kg,丙三醇8kg,去离子水27kg。
本实施例的除草剂组合物的制备方法为:
将上述物料(除水外)一起加入反应釜混合机中,搅拌90min,充分混合,再一边搅拌一边慢慢加入水,再搅拌30min,充分混合均匀后,即制得微乳剂。
实施例14:68%草灭畏·砜吡草唑·甲酰胺基嘧磺隆可湿性粉剂
本实施例的除草剂组合物原料用量为:
草灭畏60kg,砜吡草唑5kg,甲酰胺基嘧磺隆3kg,皂角粉6kg,甲基萘磺酸钠8kg,苯甲酸钠5kg,膨润土13kg。
本实施例的除草剂组合物的制备方法为:
将上述物料一起加入锥形混合机中混合均匀,后经气流粉碎机粉碎,粉碎后的物料再经锥形混合机混合,混合后的物料细度98%通过600目标准筛,即制得相应重量百分比的草灭畏·砜吡草唑·甲酰胺基嘧磺隆可湿性粉剂。
实施例15:砜吡草唑、甲酰胺基嘧磺隆对三叶鬼针、马唐、香附子的室内毒力测定
通过室内生测,明确砜吡草唑和甲酰胺基嘧磺隆复配后的增效情况,以三叶鬼针(Bidens pilosa L.)、马唐(Digitaria sanguinalis(L.)Scop.)、香附子(Cyperus rotundus)作为生测对象,选用未施用过除草剂土壤,pH=6.8,将土壤风干过筛后,装入直径32cm,深20cm的塑料花盆(有托盘)中。采用茎叶喷雾法,参照NY/T 1155.4-2006农药室内生物测定试验准则除草剂第4部分:活性测定试验茎叶喷雾法进行实验,每处理4次重复,每重复15株植物,设不含药剂处理为空白对照。数据统计分析方法参照NY/T 1155.7-2006农药室内生物测定试验准则除草剂第7部分:混配的联合作用测定中的Gowing法,计算出各混配组合理论存活率E 0值、实际存活率E值以及理论值与实际值之差(E-E 0)。
混剂的理论杂草存活率E 0按公式(1)计算:
Figure PCTCN2019100696-appb-000001
式中:
X—砜吡草唑以某剂量单用时对靶标杂草的鲜重抑制率
Y—甲酰胺基嘧磺隆以某剂量单用时对靶标杂草的鲜重抑制率
E 0—砜吡草唑和甲酰胺基嘧磺隆混用时对靶标杂草鲜重抑制率的理论值
E为砜吡草唑和甲酰胺基嘧磺隆混用时对靶标杂草鲜重抑制率为对照的实测值。
除草剂混用后表现出的三种效果判断标准:E-E 0>10%为协同增效作用;E-E 0<-10%为协同拮抗作用;E-E 0值介于±10%为协同相加作用。
表1 砜吡草唑和甲酰胺基嘧磺隆复配对三叶鬼针的室内毒力测定结果
Figure PCTCN2019100696-appb-000002
Figure PCTCN2019100696-appb-000003
根据Gowing法评价除草剂联合方式,表1数据显示,砜吡草唑和甲酰胺基嘧磺隆复配对三叶鬼针的共毒系数均﹥-10%,没有出现拮抗作用,说明砜吡草唑和甲酰胺基嘧磺隆的复配除草剂是可行的。砜吡草唑和甲酰胺基嘧磺隆在用药量为(40+10)g.a.i/ha、(60+15)g.a.i/ha、(80+20)g.a.i/ha、(100+25)g.a.i/ha时E 0-E值都大于10%,具有增效作用。砜吡草唑和甲酰胺基嘧磺隆的最佳用药量质量比为4:1。
表2 砜吡草唑和甲酰胺基嘧磺隆复配对马唐的室内毒力测定结果
Figure PCTCN2019100696-appb-000004
Figure PCTCN2019100696-appb-000005
根据Gowing法评价除草剂联合方式,表2数据显示,砜吡草唑和甲酰胺基嘧磺隆复配对马唐的共毒系数均﹥-10%,没有出现拮抗作用。砜吡草唑和甲酰胺基嘧磺隆在用药量为(40+10)g.a.i/ha、(60+15)g.a.i/ha、(80+20)g.a.i/ha、(100+25)g.a.i/ha时E 0-E值都大于10%,具有增效作用。砜吡草唑和甲酰胺基嘧磺隆的最佳用药量质量比为4:1。
表3 砜吡草唑和甲酰胺基嘧磺隆复配对香附子的室内毒力测定结果
Figure PCTCN2019100696-appb-000006
Figure PCTCN2019100696-appb-000007
根据Gowing法评价除草剂联合方式,表2数据显示,砜吡草唑和甲酰胺基嘧磺隆复配对马唐的共毒系数均﹥-10%,具有相加协同作用。砜吡草唑和甲酰胺基嘧磺隆在用药量为(40+10)g.a.i/ha、(60+15)g.a.i/ha、(80+20)g.a.i/ha、(100+25)g.a.i/ha时E 0-E值都大于10%,具有增效作用。砜吡草唑和甲酰胺基嘧磺隆的最佳用药量质量比为4:1。
实施例16:砜吡草唑、甲酰胺基嘧磺隆和草灭畏对三叶鬼针、马唐、香附子的室内毒力测定
通过室内生测,明确砜吡草唑、甲酰胺基嘧磺隆和草灭畏复配后的增效情况,以三叶鬼针(Bidens pilosa L.)、马唐(Digitaria sanguinalis(L.)Scop.)、香附子(Cyperus rotundus)作为生测对象,选用未施用过除草剂土壤,pH=6.8,将土壤风干过筛后,装入直径32cm,深20cm的塑料花盆(有托盘)中。采用茎叶喷雾法,参照NY/T 1155.4-2006农药室内生物测定试验准则除草剂第4部分:活性测定试验茎叶喷雾法进行实验,每处理4次重复,每重复15株植物,设不含药剂处理为空白对照。数据统计分析方法参照NY/T 1155.7-2006农药室内生物测定试验准则除草剂第7部分:混配的联合作用测定中的Colby法,计算出各混配组合理论存活率E 0值、实际存活率E值以及理论值与实际值之差(E 0-E)。
混剂的理论杂草存活率E 0按公式(2)计算:
Figure PCTCN2019100696-appb-000008
式中:
A—草灭畏以某剂量单用时对靶标杂草的鲜重抑制率
B—砜吡草唑以某剂量单用时对靶标杂草的鲜重抑制率
C—甲酰胺基嘧磺隆以某剂量单用时对靶标杂草的鲜重抑制率
N—除草剂N的杂草的鲜重抑制率
n—为混配除草剂的品种数
E 0—草灭畏、砜吡草唑、甲酰胺基嘧磺隆三种药剂混用时对靶标杂草鲜重抑制率的理论值
E为草灭畏、砜吡草唑、甲酰胺基嘧磺隆混用时对靶标杂草鲜重抑制率为对照的实测值。
除草剂混用后表现出的三种效果判断标准:E 0-E>10%为协同增效作用; E 0-E<-10%为协同拮抗作用;E 0-E值介于±10%为协同相加作用。
表4 草灭畏、砜吡草唑和甲酰胺基嘧磺隆复配对三叶鬼针的室内毒力测定结果
Figure PCTCN2019100696-appb-000009
Figure PCTCN2019100696-appb-000010
根据Colby法评价除草剂联合方式,表4数据显示,草灭畏、砜吡草唑和甲酰胺基嘧磺隆三元组合对三叶鬼针的共毒系数均﹥-10%,没有出现拮抗作用,说明草灭畏、砜吡草唑和甲酰胺基嘧磺隆的复配除草剂是可行的。E 0-E值均大于20%,该复配除草剂具有明显的增效作用。
表5 砜吡草唑、甲酰胺基嘧磺隆和草灭畏复配对马唐的室内毒力测定结果
Figure PCTCN2019100696-appb-000011
Figure PCTCN2019100696-appb-000012
根据Colby法评价除草剂联合方式,表5数据显示,草灭畏、砜吡草唑和甲酰胺基嘧磺隆三元组合对马唐的E 0-E值均大于20%,该复配除草剂具有明显的增效作用。
表6 砜吡草唑、甲酰胺基嘧磺隆和草灭畏复配对香附子的室内毒力测定结果
Figure PCTCN2019100696-appb-000013
Figure PCTCN2019100696-appb-000014
根据Colby法评价除草剂联合方式,表6数据显示,草灭畏、砜吡草唑和甲酰胺基嘧磺隆三元组合对香附子的E 0-E值均大于20%,该复配除草剂具有明显的增效作用。
据表1、2、3的结果显示,砜吡草唑和甲酰胺基嘧磺隆的最佳质量混配比为4:1。表4、5、6的结果显示,草灭畏在剂量(500~900)g a.i./ha,砜吡草唑在剂量60g a.i./ha,甲酰胺基嘧磺隆在剂量15g a.i./ha时,混用表现出明显的增效作用,E0-E﹥20。最佳混配比例范围为(500~900):60:15,即(35~60):4:1。
实施例17:发明实施例在甘蔗地田间应用情况
于2018年5月份我们在广西崇左市扶绥县甘蔗地进行了一次除草大田药效试验。试验药剂为实施例2~10所制得的产品,对照药剂为20%草灭畏微乳剂、60%砜吡草唑水分散粒剂、3%甲酰胺基嘧磺隆油悬浮剂,均为市售产品;试验药剂的使用浓度为700a.i.g/hm 2,20%草灭畏微乳剂的使用浓度为(2000~4000)a.i.g/hm 2(按产品推荐剂量)、60%砜吡草唑水分散粒剂的使用浓度为(125~250)a.i.g/hm 2(按产品推荐剂量)、3%甲酰胺基嘧磺隆油悬浮剂的使用浓度为(30~60)a.i.g/hm 2(按产品推荐剂量)。试验方法参照GB/T 17980.49-2000农药田间药效试验准则(一)除草剂防治甘蔗田杂草。其试验结果如下表7。
表7 14个发明实例对甘蔗地杂草的防治效果
Figure PCTCN2019100696-appb-000015
Figure PCTCN2019100696-appb-000016
注:4月20日喷药,7月5日调查杂株防效,防效(%)=(CK杂草数-用药杂草数)/CK杂草数×100%。
表7的大田药效试验结果表明,草灭畏、砜吡草唑、甲酰胺基嘧磺隆除草组合物各处理对杂草的大田防治效果(鲜重防效)均超过80%,实施例6~14的复配制剂各处理药效和杀草谱均优于对照药剂20%草灭畏微乳剂、60%砜吡草唑水分散粒剂、3%甲酰胺基嘧磺隆油悬浮剂;以实施例7效果最明显,总草株防效为95.8%。各实施例除草组合物均对甘蔗安全。另外,本发明实施例除草具有更好的经济效益。

Claims (10)

  1. 一种含有砜吡草唑、甲酰胺基嘧磺隆的除草剂组合物,其特征在于,包括以下重量份的有效成分:砜吡草唑1-80份、甲酰胺基嘧磺隆1-50份。
  2. 根据权利要求1所述的除草剂组合物,其特征在于:还包括草灭畏5-90份。
  3. 根据权利要求2所述的除草剂组合物,其特征在于,包括以下重量份的有效成分:草灭畏20-70份、砜吡草唑1-30份、甲酰胺基嘧磺隆1-15份。
  4. 根据权利要求1-3任一项所述的除草剂组合物,与溶剂和辅料配合制成液体制剂,其特征在于:
    所述的辅料为乳化剂、分散剂、增稠剂、消泡剂、防冻剂、pH调节剂、稳定剂、助溶剂中的一种或两种以上的混合。
  5. 根据权利要求4所述的除草剂组合物,其特征在于:
    所述的溶剂为水、甘油、二甲基亚砜、乙醇、丙二醇、聚乙二醇类、麻油、豆油、棉籽油、花生油、液体石蜡、油酸乙酯、肉豆蔻酸异丙酯中的一种或两种以上的混合;
    所述的乳化剂为脂肪酸皂、烷基磺酸盐、烷基苯基硫酸盐、磷酸盐、胺类、季铵盐、聚氧乙烯型、环氧乙烷和环氧丙烯嵌段共聚物、多元醇的脂肪酸酯、聚乙烯醇、卵磷脂、羊毛脂、***树胶中的一种或两种以上的混合;
    所述的分散剂为水玻璃、三聚磷酸钠、六偏磷酸钠、焦磷酸钠、三乙基己基磷酸、十二烷基硫酸钠、甲基戊醇、纤维素衍生物、聚丙烯酰胺、古尔胶、脂肪酸聚乙二醇酯中的一种或两种以上的混合;
    所述的增稠剂为甲基纤维素、羧甲基纤维素、羟乙基纤维素、羟丙基甲基纤维素、硅凝胶、淀粉、明胶、海藻酸钠、干酪素、瓜尔胶、甲壳胺、***树胶、黄原胶、大豆蛋白胶、天然橡胶、羊毛脂、琼脂、聚丙烯酰胺顺丁橡胶、丁苯橡胶、聚氨酯、改性聚脲中的一种或两种以上的混合;
    所述的消泡剂为豆油、玉米油、聚氧乙烯聚氧丙烯季戊四醇醚、聚氧乙烯聚氧丙醇胺醚、聚氧丙烯甘油醚和聚氧丙烯聚氧乙烯甘油醚、聚二甲基硅氧烷中的一种或两种以上的混合;
    所述的防冻剂为氯化钙、甲醇、乙醇、乙二醇、丙二醇、丙三醇、润滑油、砂糖、蜂蜜中的一种或两种以上的混合;
    所述的pH调节剂为冰醋酸、磷酸、苯甲酸、柠檬酸、磷酸二氢钠、氢氧化钠、磷酸氢二钠中的一种或两种以上的混合;
    所述的稳定剂为烷基或芳基磷酸酯、亚磷酸酯、多元醇、烷基磺酸酯及其取代铵盐、取代环氧物中的一种或两种以上的混合;
    所述的助溶剂为环己酮、吡咯烷酮、二甲基甲酰胺、乙腈中的一种或两种以 上的混合。
  6. 根据权利要求1-3任一项所述的除草剂组合物,与辅料配合制成固体制剂,其特征在于:所述辅料为润湿剂、分散剂、稳定剂、抗分解剂、崩解剂、粘结剂、惰性填料中的一种或两种的混合。
  7. 根据权利要求6所述的除草剂组合物,其特征在于,其固体制剂的制备方法包括以下的步骤:
    将各有效成分和惰性填料混合,粉碎成细粉,加入润湿剂、分散剂、稳定剂、抗分解剂、崩解剂,混合均匀制成粉剂;
    或者在粉剂的基础上,加入适量的粘结剂进一步制备成颗粒剂。
  8. 根据权利要求6所述的除草剂组合物,其特征在于:
    所述的润湿剂为十二烷基硫酸钠、十二烷基苯磺酸钠、十二烷基苯磺酸钙、聚氧乙烯烷基苯基醚、苯乙烯基苯酚、甲醛树脂、聚氧乙烯醚、烷基酚甲醛缩合物、聚丙烯酸盐、拉开粉BX、渗透剂T、私盘20、茶枯粉、皂角粉、无患子粉、吐温系列中的一种或两种以上的混合;
    所述的分散剂为木质素及其盐、纤维素衍生物、藻酸盐、烷基萘磺酸盐、甲醛缩合物的盐中的一种或两种以上的混合;
    所述的稳定剂为硬脂酸镁、月桂酸锌、月桂酸二丁基锡、十二硫醇二正丁基锡、丁基羟基茴香醚、环氧氯丙烷、苯甲酸盐中的一种或两种以上的混合;
    所述的抗分解剂为沸石、生石灰、氧化镁、水杨酸类、二苯酮类、维生素C、抗氧化剂中的一种或两种以上的混合;
    所述的崩解剂为三聚磷酸钠、硬脂酸金属盐、干淀粉、羧甲基淀粉钠、低取代纤维素、聚乙烯吡咯烷酮、碳酸氢钠、枸橼酸、膨润土、硫酸铵中的一种或两种以上的混合;
    所述的惰性填料为高岭土、硅藻土、滑石、石膏、蒙脱石、膨润土、凹凸棒土、白云石、白炭黑、淀粉、轻质碳酸钙土、凹凸棒土、白云石、白炭黑、淀粉、轻质碳酸钙中的一种或两种以上的混合;
    所述的粘结剂为明胶、橡胶、聚乙烯醇缩醛、聚碳酸醋、尼龙、聚枫中的一种或两种以上的混合。
  9. 根据权利要求1-8任一项所述的除草剂组合物用于甘蔗地防除一年生阔叶杂草、禾本科杂草和莎草科杂草的用途。
  10. 根据权利要求1-8任一项所述的除草剂组合物用于防治马唐、稗草、狗尾草、千金子、牛筋草、野稷、香附子、马齿苋、苍耳、龙葵、三叶鬼针草、胜红蓟、茴麻、曼陀罗、鼬瓣花的用途。
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CN110839617A (zh) * 2019-10-14 2020-02-28 安徽省安邦矿物有限公司 一种杀软体动物剂的凹凸棒土悬浮料及其制备方法
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