CN102428923A - Pendimethalin and pyrithiobac-sodium compounded herbicide - Google Patents
Pendimethalin and pyrithiobac-sodium compounded herbicide Download PDFInfo
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- CN102428923A CN102428923A CN2012100114408A CN201210011440A CN102428923A CN 102428923 A CN102428923 A CN 102428923A CN 2012100114408 A CN2012100114408 A CN 2012100114408A CN 201210011440 A CN201210011440 A CN 201210011440A CN 102428923 A CN102428923 A CN 102428923A
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Abstract
The invention discloses a pendimethalin and pyrithiobac-sodium compounded herbicide which comprises pendimethalin, pyrithiobac-sodium and an accessory ingredient and also comprises one of a filler and a solvent, wherein the weight percentage of pendimethalin is 1%-75%, the weight percentage of pyrithiobac-sodium is 0.1%-40%, and the mass sum of pendimethalin and pyrithiobac-sodium is 1.1-80% of the total mass of the herbicide. Through the cooperation of various components and the reasonable content proportion of the various components, the pendimethalin and pyrithiobac-sodium compounded herbicide can be used for effectively preventing and eliminating weeds during soil pretreatment for cotton seedlings; the two types of main components are compounded and have different action mechanisms and complementary weed control spectrums; and after the pendimethalin and pyrithiobac-sodium compounded herbicide is used, the annual and perennial gramineae and broadleaf weeds can be prevented and removed, the weed control spectrum of a siple dosage is improved, the processing cost is lowered, the use amount of farm chemicals is reduced, and the degree of safety for cotton is improved.
Description
Technical field
The present invention relates to a kind of agricultural chemicals, a kind of specifically pendimethalin and composite weed killer herbicide of pyrithiobac-sodium that is used for the preceding soil treatment of cotton seedling.
Background technology
Pendimethalin is that upland field soil is handled weed killer herbicide before the selectivity bud, behind the bud.The weeds young shoot of sprouting absorbs medicament, and medicament gets in the plant corpus and combines with tubulin, suppresses the mitosis of plant cell, thereby causes weeds dead.Pendimethalin can be prevented and kill off annual gramineous weed, part broad leaved weed and nutgrass flatsedge.As: barnyard grass grass, lady's-grass, green foxtail, moleplant seed, eleusine indica, kitchen garden, amaranth, lamb's-quarters, piemarker, black nightshade, cyperus iria, difformed galingale herb etc.Its preventive effect to grassy weed is superior to broad leaved weed, but poor to the preventive effect of perennial weed.
Pyrithiobac-sodium is used to prevent and kill off the annual and perennial grassy weed in cotton field and most broad leaved weed, and it is a kind of inhibitor of acetolactate synthetase, comes management of weeds through stoping amino acid whose biosynthesis.Pyrithiobac-sodium is to difficulties such as field bindweed, black nightshade, Siberian cocklebur, the piemarker good preventive effect of having cut weeds, and field thistle, corn sow thistle, hardship sold dish the growth of inhibition and eradicant action are arranged, and is relatively poor to the grassy weed preventive effect.Pyrithiobac-sodium soil treatment and cauline leaf handle all can, but the little then preventing weeding weeds effect of dosage is poor when being used for cauline leaf and handling, and is prone to cause weeds to turn green, if using dosage is bigger than normal then can to cause certain injury to cotton, influences growing way.
Herbicide before seedling stage such as use pendimethalin are handled the cotton field; Can prevent and kill off most of weeds; But it is very poor black nightshade, field bindweed and perennial weed field thistle, corn sow thistle, hardship to be sold preventive effect such as dish, and these weeds still can continue rudiment, the harm cotton growth.Can use this moment pyrithiobac-sodium etc. to carry out the cauline leaf spraying and handle, but using dosage is wayward, if using dosage is little, preventing weeding weeds effect is poor; If using dosage is bigger than normal, then can influence the cotton growing way.Use two kinds of agricultural chemicals to handle respectively, the processing time increases, and the agricultural chemicals usage amount is bigger, and use cost improves, and the degree of safety of cotton is impacted.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of be used for soil treatment before the cotton seedling, a drug kills pendimethalin and the composite weed killer herbicide of pyrithiobac-sodium whole weeds, that practice thrift cost.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is:
The weed killer herbicide that pendimethalin and pyrithiobac-sodium are composite comprises pendimethalin, pyrithiobac-sodium, auxiliary agent, also comprises the wherein a kind of of filler or solvent.
Further improvement of the present invention is: the quality percentage composition of said pendimethalin is 1%～75%, and the quality percentage composition of pyrithiobac-sodium is 0.1%～40%, and the quality sum of pendimethalin and pyrithiobac-sodium is 1.1%～80% of a weed killer herbicide gross mass.
Further improvement of the present invention is: said solvent is one or more a composition of water, methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate;
Said filler is one or more a composition of diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, protruding Attapulgite, potter's clay.
Further improvement of the present invention is: the preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a missible oil; Said auxiliary agent is an emulsifier, and said solvent is one or more a composition of methyl alcohol, ethanol, xylol, toluene, cyclohexanone, solvent naphtha, methyl oleate; The quality percentage composition of said emulsifier in preparation is 5%～30%, and the quality percentage composition of said solvent in preparation is 10%～90%;
Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.
Further improvement of the present invention is: the preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a soluble concentrate; Said auxiliary agent is an emulsifier, and said solvent is one or more a composition of dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone; The quality percentage composition of said emulsifier in preparation is 5%～30%, and the quality percentage composition of said solvent in preparation is 10%～90%;
Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.
Further improvement of the present invention is: the preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is microemulsion or aqueous emulsion; Said auxiliary agent is emulsifier, antifreezing agent, thickener; Said solvent comprises water, and said solvent also comprises one or more composition of methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate; The quality percentage composition of said emulsifier in preparation is 5%～30%, and the quality percentage composition of said solvent in preparation is 10%～90%;
Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#;
Antifreezing agent is a kind of in ethylene glycol, propane diols, isobutanol, urea, the glycerine;
Thickener is a kind of in polyvinyl alcohol, methylcellulose, xanthans, CMC, organobentonite, aluminium-magnesium silicate, the arabic acid glue.
Further improvement of the present invention is: the preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a water dispersible granules, and said auxiliary agent is dispersant, wetting agent, disintegrant, binding agent, and surplus is a filler; The quality percentage composition of said auxiliary agent in preparation is: dispersant 3%～10%, wetting agent 1%～5%, disintegrant 1%～5%, binding agent 1%～5%;
Said dispersant is lignosulfonates; The lignin calcium iodate; Ethoxylated dodecyl alcohol sodium sulphate; Alkyl is formaldehyde condensation products sulfonate how; Neopelex; Lauryl sodium sulfate; Alkyl polyoxyethylene ether sulfonate; Alkylphenol-polyethenoxy base ether formaldehyde condensation products; Alkylphenol-polyethenoxy base ether Nonyl pheno base ether; Polyoxyethylene polyoxypropylene base ether block copolymers; Draw back powder; Polymeric carboxylic salt; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate; Polyvinyl alcohol; The naphthalene sulfonate of modification; Polycarboxylate; Alkylnaphthalene sulfonate; APES; The composition of one or more in the EO/PO block polyether;
Wetting agent is alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, AEO, APES, short chain EO/PO block polyether, NPE, nonionic ethoxylate, lauryl sodium sulfate, dodecyl sodium sulfate, TERSPERSE2700, TERSPERSE1004 one or more a composition wherein;
Disintegrant is wherein a kind of of ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, sucrose, glucose, carboxymethyl cellulose, soluble starch;
Binding agent is wherein a kind of of polyvinyl alcohol, soluble starch, dextrin, xanthans, carboxymethyl cellulose.
Further improvement of the present invention is: the preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a wetting powder, and said auxiliary agent is dispersant, wetting agent, and surplus is a filler; The quality percentage composition of said auxiliary agent in preparation is: dispersant 3%～10%, wetting agent 1%～5%;
Said dispersant is lignosulfonates; The lignin calcium iodate; Ethoxylated dodecyl alcohol sodium sulphate; Alkyl is formaldehyde condensation products sulfonate how; Neopelex; Lauryl sodium sulfate; Alkyl polyoxyethylene ether sulfonate; Alkylphenol-polyethenoxy base ether formaldehyde condensation products; Alkylphenol-polyethenoxy base ether Nonyl pheno base ether; Polyoxyethylene polyoxypropylene base ether block copolymers; Draw back powder; Polymeric carboxylic salt; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate; Polyvinyl alcohol; The naphthalene sulfonate of modification; Polycarboxylate; Alkylnaphthalene sulfonate; APES; The composition of one or more in the EO/PO block polyether;
Wetting agent is alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, AEO, APES, short chain EO/PO block polyether, NPE, nonionic ethoxylate, lauryl sodium sulfate, dodecyl sodium sulfate, TERSPERSE2700, TERSPERSE1004 one or more a composition wherein.
Because the technological progress of having adopted technique scheme, the present invention to obtain is:
The cooperation of pendimethalin of the present invention, pyrithiobac-sodium, auxiliary agent and filler or solvent and the rational proportion of content can effectively be used for the preventing and kill off of weeds of soil treatment before the cotton seedling, two kinds of main components composite, and the two medicine mechanisms of action are different; Killing the grass spectrum mends mutually; Can prevent and kill off after the use 1 year and perennial grass family and broad leaved weed, improve the grass that kills of single agent and composed, processing cost reduces; And reduced the usage amount of agricultural chemicals, improved degree of safety cotton.
The proportioning that the present invention can rationally adjust auxiliary agent and filler or solvent is processed into missible oil, microemulsion, aqueous emulsion, water dispersible granules, wetting powder or soluble concentrate, satisfies the demand in different cottons field.Emulsifier can improve the storage stability of soup, and can stop the droplet of disperse phase to condense mutually, makes soup reach homodisperse effect in use.Dispersant mainly is in order dispersion of nano-particles to be provided and to stop the flocculation of grinding the back particle, guaranteeing that particle is suspended state; Active ingredient is scattered in the water in use uniformly, can prevents soup generation layering, sedimentation, caking simultaneously.It is the air that helps on the emptying pesticide activity component particle surface that wetting agent mainly acts on, and adds fast particle and gets into the speed in the water, makes particle wetting rapidly, is convenient to grind.Its effect of disintegrant is to improve the disintegration rate of particle in water, makes the particle state before its rapid disintegration is dispersed to granulation.Binding agent is in order to improve granulation effect and molding particles rate.Filler mainly is to be used to dilute active constituent content, help simultaneously improving former medicine crush efficiency, improve the flowability of particle.Antifreezing agent solidifies in order to prevent during the accumulating to endure cold because of the weather reason, damages properties of product, adds the low-temperature stability that antifreezing agent improves suspending agent, can also prevent product surface drying and skinning.Thickener mainly is for rheological characteristic of regulating liquid and flowability, and the particle that prevents to disperse guarantees product dilution and mobile easily in bucket mixes simultaneously because of gravitate produces layering and deposition.The effect of solvent is in order active ingredient to be diluted to certain content, to have certain stabilization simultaneously.
Embodiment
Below in conjunction with embodiment the present invention is explained further details:
Embodiment 1
The component of the herbicidal composition of present embodiment is following: 33 kilograms of pendimethalins, 5 kilograms of pyrithiobac-sodiums, 47 kilograms of solvents, 15 kilograms of emulsifier.
Above-mentioned each component added in the agitated reactor by the order of solvent, pyrithiobac-sodium, pendimethalin, emulsifier successively stirred 30 minutes, dissolving evenly promptly can be made into the missible oil double centner fully.
Wherein, said solvent is one or more a composition of methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, solvent naphtha, methyl oleate.Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.
Field efficacy experiment situation is following.
1. purpose:
Synergistic effect after understanding pendimethalin and pyrithiobac-sodium are composite is analyzed it and is killed grass spectrum and usage amount.
2. test the field situation:
Soil treatment before Shihezi, Xinjiang 121 production and construction corps's experiment centres carry out sowing cotton seed in 2011, the weeds kind that this plot takes place year after year mainly contain black nightshade, field bindweed, field thistle, hardship and sell dish and reed, barnyard grass grass, lady's-grass etc., and generating capacity is big.
3. experimental pharmacy: 33% pendimethalin+5% pyrithiobac-sodium missible oil, 33% pendimethalin missible oil, 70% pyrithiobac-sodium water dispersible granules.
Experimental design:
| Handle | The medicament title | Consumption/mu |
| 1 | 33% pendimethalin+5% pyrithiobac-sodium missible oil | 80 ml |
| 2 | 33% pendimethalin+5% pyrithiobac-sodium missible oil | 100 ml |
| 3 | 33% pendimethalin+5% pyrithiobac-sodium missible oil | 120 ml |
| 4 | 33% pendimethalin missible oil | 150ml/ mu |
| 5 | 70% pyrithiobac-sodium water dispersible granules | 10g |
| 6 | Blank | ? |
Design 6 processing altogether, totally 18 sub-districts, each sub-district area 20 square meter, each handles corresponding 3 sub-districts, the randomized arrangement of dividing.
5, experimental investigation:
Behind the medicine 40 days at each sub-district random sampling 3 point, get 0.25 square meter at every, investigation record weeds kind, strain number calculate preventive effect respectively.
40 days each preventive effects of handling behind the medicine
After can finding out that by last table pendimethalin and pyrithiobac-sodium are composite, can obviously improve control efficiency, widen single agent and killed the grass spectrum, improve preventive effect, and reduced the usage amount of active ingredient grassy weed and broad leaved weed.
Embodiment 2
The component of the herbicidal composition of present embodiment is following: 1 kilogram of pendimethalin, 4 kilograms of pyrithiobac-sodiums, 90 kilograms of solvents, 5 kilograms of emulsifier.
Above-mentioned each component added in the agitated reactor by the order of solvent, pyrithiobac-sodium, pendimethalin, emulsifier successively stirred 30 minutes, dissolving evenly promptly can be made into the missible oil double centner fully.
Wherein, the concrete constituent of said solvent, emulsifier is with embodiment 1.
Instance 3:
15 kilograms of pendimethalins, 5 kilograms of pyrithiobac-sodiums, 55 kilograms of solvents, 15 kilograms of emulsifier, 5 kilograms of thickeners, 5 kilograms of antifreezing agents.
Earlier solvent is added agitated reactor, add pendimethalin and pyrithiobac-sodium stirring dissolving extremely fully in 20 minutes again, adding emulsifier, thickener, antifreezing agent continue stirring and promptly can be made into the microemulsion double centner in 10 minutes.
Wherein, said solvent comprises 25 kilograms in water, also comprises one or more composition of methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate.Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.Antifreezing agent is a kind of in ethylene glycol, propane diols, isobutanol, urea, the glycerine.Thickener is a kind of in polyvinyl alcohol, methylcellulose, xanthans, CMC, organobentonite, aluminium-magnesium silicate, the arabic acid glue.
Embodiment 4
50 kilograms of pendimethalins, 30 kilograms of pyrithiobac-sodiums, 15 kilograms of solvents, 3 kilograms of emulsifier, 1 kilogram of thickener, 1 kilogram of antifreezing agent.
Earlier solvent is added agitated reactor, add pendimethalin and pyrithiobac-sodium stirring dissolving extremely fully in 20 minutes again, adding emulsifier, thickener, antifreezing agent continue stirring and promptly can be made into the microemulsion double centner in 10 minutes.
Wherein, said solvent comprises 10 kilograms in water, also comprises one or more composition of methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate.The concrete constituent of emulsifier, thickener, antifreezing agent is with embodiment 3.
Embodiment 5
25 kilograms of pendimethalins, 5 kilograms of pyrithiobac-sodiums, 50 kilograms of solvents, 10 kilograms of emulsifier, 5 kilograms of thickeners, 5 kilograms of antifreezing agents.
Earlier solvent is added agitated reactor, add pendimethalin and pyrithiobac-sodium again and stir 20 minutes to dissolving fully, adding emulsifier, thickener, antifreezing agent continue to stir 10 minutes, promptly can be made into the aqueous emulsion double centner in 30 minutes with the clipper high speed shear.
Wherein, said solvent comprises 30 kilograms in water, and solvent also comprises one or more composition of methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate etc.Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.Antifreezing agent is a kind of in ethylene glycol, propane diols, isobutanol, urea, the glycerine.Thickener is a kind of in polyvinyl alcohol, methylcellulose, xanthans, CMC, organobentonite, aluminium-magnesium silicate, the arabic acid glue.
Embodiment 6
30 kilograms of pendimethalins, 20 kilograms of pyrithiobac-sodiums, 30 kilograms of solvents, 14 kilograms of emulsifier, 3 kilograms of thickeners, 3 kilograms of antifreezing agents.
Earlier solvent is added agitated reactor, add pendimethalin and pyrithiobac-sodium again and stir 20 minutes to dissolving fully, adding emulsifier, thickener, antifreezing agent continue to stir 10 minutes, promptly can be made into the aqueous emulsion double centner in 30 minutes with the clipper high speed shear.
Wherein, said solvent comprises 15 kilograms in water, and solvent also comprises one or more composition of methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate etc.The concrete constituent of emulsifier, thickener, antifreezing agent is with embodiment 5.
Embodiment 7
60 kilograms of pendimethalins, 20 kilograms of pyrithiobac-sodiums, 8 kilograms of dispersants, 3 kilograms of wetting agents, 4 kilograms of disintegrants, 2 kilograms of binding agents, 3 kilograms of fillers.
Reach be crushed to the preparation particle diameter with airslide disintegrating mill behind the abundant mixing of above-mentioned each component at the 5-10 micron, carry out granulation with Squeezinggranulator again and promptly can be made into the water dispersible granules double centner.
Wherein, said dispersant is the how composition of one or more in formaldehyde condensation products sulfonate, neopelex, lauryl sodium sulfate, alkyl polyoxyethylene ether sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products, alkylphenol-polyethenoxy base ether Nonyl pheno base ether, polyoxyethylene polyoxypropylene base ether block copolymers, the naphthalene sulfonate that draws back powder, polymeric carboxylic salt, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate, polyvinyl alcohol, modification, polycarboxylate, alkylnaphthalene sulfonate, APES, the EO/PO block polyether of lignosulfonates, lignin calcium iodate, ethoxylated dodecyl alcohol sodium sulphate, alkyl.
Wetting agent is alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, AEO, APES, short chain EO/PO block polyether, NPE, nonionic ethoxylate, lauryl sodium sulfate, dodecyl sodium sulfate, TERSPERSE2700, TERSPERSE1004 one or more a composition wherein.
Disintegrant is wherein a kind of of ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, sucrose, glucose, carboxymethyl cellulose, soluble starch.
Binding agent is wherein a kind of of polyvinyl alcohol, soluble starch, dextrin, xanthans, carboxymethyl cellulose.
Said filler is one or more a composition of diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, protruding Attapulgite, potter's clay.
Embodiment 8
47 kilograms of pendimethalins, 30 kilograms of pyrithiobac-sodiums, 10 kilograms of dispersants, 1 kilogram of wetting agent, 5 kilograms of disintegrants, 3 kilograms of binding agents, 4 kilograms of fillers.
Reach be crushed to the preparation particle diameter with airslide disintegrating mill behind the abundant mixing of above-mentioned each component at the 5-10 micron, carry out granulation with Squeezinggranulator again and promptly can be made into the water dispersible granules double centner.
Wherein, the concrete constituent of said dispersant, wetting agent, disintegrant, binding agent, filler is with embodiment 7.
Embodiment 9
50 kilograms of pendimethalins, 29 kilograms of pyrithiobac-sodiums, 8 kilograms of dispersants, 5 kilograms of wetting agents, 8 kilograms of fillers.
Reach the 5-10 micron and promptly can be made into the wetting powder double centner being crushed to the preparation particle diameter with airslide disintegrating mill behind the abundant mixing of above-mentioned each component.
Wherein, the concrete constituent of said dispersant, wetting agent, filler is with embodiment 7.
Embodiment 10
50 kilograms of pendimethalins, 25 kilograms of pyrithiobac-sodiums, 3 kilograms of dispersants, 5 kilograms of wetting agents, 17 kilograms of fillers.
Reach the 5-10 micron and promptly can be made into the wetting powder double centner being crushed to the preparation particle diameter with airslide disintegrating mill behind the abundant mixing of above-mentioned each component.
Wherein, the concrete constituent of said dispersant, wetting agent, filler is with embodiment 7.
Embodiment 11
20 kilograms of pendimethalins, 10 kilograms of pyrithiobac-sodiums, 55 kilograms of solvents, 15 kilograms of emulsifier.
Above-mentioned each component added in the agitated reactor by the order of solvent, pyrithiobac-sodium, pendimethalin, emulsifier successively stirred 30 minutes, dissolving evenly promptly can be made into the soluble concentrate double centner fully.
Wherein, said solvent is one or more a composition of dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone.Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.
Embodiment 12
20 kilograms of pendimethalins, 40 kilograms of pyrithiobac-sodiums, 10 kilograms of solvents, 30 kilograms of emulsifier.
Above-mentioned each component added in the agitated reactor by the order of solvent, pyrithiobac-sodium, pendimethalin, emulsifier successively stirred 30 minutes, dissolving evenly promptly can be made into the soluble concentrate double centner fully.
Wherein, the concrete constituent of said solvent, emulsifier is with embodiment 11.
Embodiment 13～18
The field efficacy experimental data of embodiment 2～18 and result and embodiment 1 are very approaching; The cooperation of pendimethalin, pyrithiobac-sodium, auxiliary agent, filler or solvent and the rational proportion of content can effectively be used for the preventing and kill off of weeds of soil treatment before the cotton seedling; Improve the grass that kills of single agent and composed, and reduced the usage amount of agricultural chemicals.Auxiliary agent, filler, solvent make agricultural chemicals reach stable state, the favourable drug effect of having stablized.
Claims (8)
1. the composite weed killer herbicide of pendimethalin and pyrithiobac-sodium is characterized in that: comprise pendimethalin, pyrithiobac-sodium, auxiliary agent, also comprise the wherein a kind of of filler or solvent.
2. pendimethalin according to claim 1 and the composite weed killer herbicide of pyrithiobac-sodium; It is characterized in that: the quality percentage composition of said pendimethalin is 1%～75%; The quality percentage composition of pyrithiobac-sodium is 0.1%～40%, and the quality sum of pendimethalin and pyrithiobac-sodium is 1.1%～80% of a weed killer herbicide gross mass.
3. pendimethalin according to claim 1 and the composite weed killer herbicide of pyrithiobac-sodium is characterized in that:
Said solvent is one or more a composition of water, methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate;
Said filler is one or more a composition of diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, protruding Attapulgite, potter's clay.
4. according to each described pendimethalin of claim 1～3 and the composite weed killer herbicide of pyrithiobac-sodium, it is characterized in that:
The preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a missible oil, and said auxiliary agent is an emulsifier, and said solvent is one or more a composition of methyl alcohol, ethanol, xylol, toluene, cyclohexanone, solvent naphtha, methyl oleate; The quality percentage composition of said emulsifier in preparation is 5%～30%, and the quality percentage composition of said solvent in preparation is 10%～90%;
Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.
5. according to each described pendimethalin of claim 1～3 and the composite weed killer herbicide of pyrithiobac-sodium, it is characterized in that:
The preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a soluble concentrate, and said auxiliary agent is an emulsifier, and said solvent is one or more a composition of dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone; The quality percentage composition of said emulsifier in preparation is 5%～30%, and the quality percentage composition of said solvent in preparation is 10%～90%;
Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#.
6. according to each described pendimethalin of claim 1～3 and the composite weed killer herbicide of pyrithiobac-sodium, it is characterized in that:
The preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is microemulsion or aqueous emulsion; Said auxiliary agent is emulsifier, antifreezing agent, thickener; Said solvent comprises water, and said solvent also comprises one or more composition of methyl alcohol, ethanol, xylol, toluene, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, cyclohexanone, solvent naphtha, methyl oleate; The quality percentage composition of said emulsifier in preparation is 5%～30%, and the quality percentage composition of said solvent in preparation is 10%～90%;
Said emulsifier is that nonionic sulphate or phosphate, polyoxyethylene sorbitan fatty acid ester, AEO series, NPE are serial, one or more the composition in the triphen ethyl phenol APEO series, two phenethyl phenol polyethenoxy ether series, APES formaldehyde condensation products 700#, phenethyl phenol polyethenoxy ether 600#, alkyl benzene calcium sulfonate 500#;
Antifreezing agent is a kind of in ethylene glycol, propane diols, isobutanol, urea, the glycerine;
Thickener is a kind of in polyvinyl alcohol, methylcellulose, xanthans, CMC, organobentonite, aluminium-magnesium silicate, the arabic acid glue.
7. according to each described pendimethalin of claim 1～3 and the composite weed killer herbicide of pyrithiobac-sodium, it is characterized in that:
The preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a water dispersible granules, and said auxiliary agent is dispersant, wetting agent, disintegrant, binding agent, and surplus is a filler; The quality percentage composition of said auxiliary agent in preparation is: dispersant 3%～10%, wetting agent 1%～5%, disintegrant 1%～5%, binding agent 1%～5%;
Said dispersant is lignosulfonates; The lignin calcium iodate; Ethoxylated dodecyl alcohol sodium sulphate; Alkyl is formaldehyde condensation products sulfonate how; Neopelex; Lauryl sodium sulfate; Alkyl polyoxyethylene ether sulfonate; Alkylphenol-polyethenoxy base ether formaldehyde condensation products; Alkylphenol-polyethenoxy base ether Nonyl pheno base ether; Polyoxyethylene polyoxypropylene base ether block copolymers; Draw back powder; Polymeric carboxylic salt; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate; Polyvinyl alcohol; The naphthalene sulfonate of modification; Polycarboxylate; Alkylnaphthalene sulfonate; APES; The composition of one or more in the EO/PO block polyether;
Wetting agent is alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, AEO, APES, short chain EO/PO block polyether, NPE, nonionic ethoxylate, lauryl sodium sulfate, dodecyl sodium sulfate, TERSPERSE2700, TERSPERSE1004 one or more a composition wherein;
Disintegrant is wherein a kind of of ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, sucrose, glucose, carboxymethyl cellulose, soluble starch;
Binding agent is wherein a kind of of polyvinyl alcohol, soluble starch, dextrin, xanthans, carboxymethyl cellulose.
8. according to each described pendimethalin of claim 1～3 and the composite weed killer herbicide of pyrithiobac-sodium, it is characterized in that:
The preparation of the weed killer herbicide that said pendimethalin and pyrithiobac-sodium are composite is a wetting powder, and said auxiliary agent is dispersant, wetting agent, and surplus is a filler; The quality percentage composition of said auxiliary agent in preparation is: dispersant 3%～10%, wetting agent 1%～5%;
Said dispersant is lignosulfonates; The lignin calcium iodate; Ethoxylated dodecyl alcohol sodium sulphate; Alkyl is formaldehyde condensation products sulfonate how; Neopelex; Lauryl sodium sulfate; Alkyl polyoxyethylene ether sulfonate; Alkylphenol-polyethenoxy base ether formaldehyde condensation products; Alkylphenol-polyethenoxy base ether Nonyl pheno base ether; Polyoxyethylene polyoxypropylene base ether block copolymers; Draw back powder; Polymeric carboxylic salt; Di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate; Polyvinyl alcohol; The naphthalene sulfonate of modification; Polycarboxylate; Alkylnaphthalene sulfonate; APES; The composition of one or more in the EO/PO block polyether;
Wetting agent is alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, AEO, APES, short chain EO/PO block polyether, NPE, nonionic ethoxylate, lauryl sodium sulfate, dodecyl sodium sulfate, TERSPERSE2700, TERSPERSE1004 one or more a composition wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100114408A CN102428923A (en) | 2012-01-16 | 2012-01-16 | Pendimethalin and pyrithiobac-sodium compounded herbicide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100114408A CN102428923A (en) | 2012-01-16 | 2012-01-16 | Pendimethalin and pyrithiobac-sodium compounded herbicide |
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| CN102428923A true CN102428923A (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100114408A Pending CN102428923A (en) | 2012-01-16 | 2012-01-16 | Pendimethalin and pyrithiobac-sodium compounded herbicide |
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| CN102960347A (en) * | 2012-12-14 | 2013-03-13 | 江苏七洲绿色化工股份有限公司 | Bactericidal composition containing prothioconazole and trifloxystrobin |
| CN104430309A (en) * | 2014-11-17 | 2015-03-25 | 宁夏中远天宇科技有限公司 | Feeding ratio of novel physical production process of 20% concentration triazolone missible oil |
| CN104798785A (en) * | 2015-04-09 | 2015-07-29 | 山东华阳农药化工集团有限公司 | Herbicide formed by mixing pendimethalin with pyrithiobac-sodium and oxyfluorfen |
| CN105248418A (en) * | 2015-11-10 | 2016-01-20 | 吕新国 | Pendimethalin and uniconazole bud-controlling emulsion in water |
| CN111109251A (en) * | 2019-12-18 | 2020-05-08 | 中化化工科学技术研究总院有限公司 | Wetting dispersant and pendimethalin suspending agent using same |
| CN112106778A (en) * | 2020-10-30 | 2020-12-22 | 山东华阳农药化工集团有限公司 | Herbicide, water dispersible granule for weeding and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102960347A (en) * | 2012-12-14 | 2013-03-13 | 江苏七洲绿色化工股份有限公司 | Bactericidal composition containing prothioconazole and trifloxystrobin |
| CN104430309A (en) * | 2014-11-17 | 2015-03-25 | 宁夏中远天宇科技有限公司 | Feeding ratio of novel physical production process of 20% concentration triazolone missible oil |
| CN104798785A (en) * | 2015-04-09 | 2015-07-29 | 山东华阳农药化工集团有限公司 | Herbicide formed by mixing pendimethalin with pyrithiobac-sodium and oxyfluorfen |
| CN105248418A (en) * | 2015-11-10 | 2016-01-20 | 吕新国 | Pendimethalin and uniconazole bud-controlling emulsion in water |
| CN111109251A (en) * | 2019-12-18 | 2020-05-08 | 中化化工科学技术研究总院有限公司 | Wetting dispersant and pendimethalin suspending agent using same |
| CN112106778A (en) * | 2020-10-30 | 2020-12-22 | 山东华阳农药化工集团有限公司 | Herbicide, water dispersible granule for weeding and preparation method thereof |
| CN112106778B (en) * | 2020-10-30 | 2021-07-20 | 山东华阳农药化工集团有限公司 | Herbicide, water dispersible granule for weeding and preparation method thereof |
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