CN104054716B - Weeding composition containing tembotrione - Google Patents

Weeding composition containing tembotrione Download PDF

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CN104054716B
CN104054716B CN201410271855.8A CN201410271855A CN104054716B CN 104054716 B CN104054716 B CN 104054716B CN 201410271855 A CN201410271855 A CN 201410271855A CN 104054716 B CN104054716 B CN 104054716B
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parts
preparation
weeding composition
cyanazine
herbicidal combinations
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CN104054716A (en
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刘瑞宾
许垠
赵晓飞
赵随上
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JINAN KANGQIAO CHEMICAL CO Ltd
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JINAN KANGQIAO CHEMICAL CO Ltd
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Abstract

The invention relates to a weeding composition containing tembotrione. A preparation of the weeding composition contains tembotrione (A) and at least one of cyanazine and atrazine in (B); the weight ratio of two effective components in the preparation is (55 to 1)-(1 to 50); the total weight parts of the effective components in the weeding composition preparation account for 1-60 percent of the total weight part of the whole preparation; the weeding composition can be prepared into pesticide preparations such as wettable powder, a suspending agent, missible oil, microemulsion, emulsion in water, particles and a water dispersing agent. The weeding composition disclosed by the invention achieves outstanding synergism; the persistence of a single dosage of each component is improved, the generation of weed drug resistance is obviously delayed, the repeated use frequency of pesticides is reduced, the using amount of the pesticides is reduced, and the agricultural cost is lowered; the weeding composition is safe to crops, is easy to degrade in an environment after the persistence period, and has an important significance on ecological environment protection; the safety of the weeding composition to next-stubble crops is improved.

Description

A kind of Herbicidal combinations containing ring sulphur ketone
Technical field
The present invention relates to technical field of pesticide combination is and in particular to a kind of Herbicidal combinations containing ring sulphur ketone.
Background technology
Ring sulphur ketone is a kind of new three ketones herbicide, is similarly HPPD inhibitor, is mainly used in cornfield weeding.It is changed Learning structural formula is:
.
Cyanazine is a kind of interior suction selective herbicide, mainly passes through root absorption, and leaf also can absorb.To corn safety, hold Effect phase 2-3 month, rear stubble Semen Tritici aestivi is no affected.Activity of weeding has substantial connection with soil organic matter content and quality.Organic Many or then herbicide consumption also needs suitably to increase for clay.In Sha Xingchong, easily poisoning when few in the content of organic matter.Herbicide is wide Spectrum, can prevent and kill off most of 1 year raw grassy weed and broad leaved weed.It is applied to Semen Maydiss, Semen Pisi sativi, Semen Viciae fabae, Rhizoma Solani tuber osi, Caulis Sacchari sinensis, cotton The crop fields such as flower prevent and kill off multiple grassy weeds and broad leaved weed.Its chemical structural formula is:
.
Atrazine is a kind of interior suction selectivity before seedling, after seedling closing herbicide.Based on root absorption, stem and leaf absorbs seldom.Kill Grass effect and the same Simanex of selectivity, easily by rainwater drip washing to soil deeper, also effective to some deep root grass, but it is also easy to produce medicine Evil.Lasting period is also longer.Its weed control spectrum is wider, can prevent and kill off multiple annual gramineaes and broad leaved weed.It is applied to Semen Maydiss, height The dry crops such as fine strain of millet, Caulis Sacchari sinensis, fruit tree, nursery, forest land prevent and kill off Herba Digitariae, barnyard grass, Herba Setariae Viridis, dried tuber, amur foxtail, knotweed, Herba chenopodii, cross Semen Maydiss are especially had preferable selectivity by Hua Ke, pulse family weeds(There are detoxication mechanisms because in Semen Maydiss body), to some perennial weeds Also there is certain inhibitory action.
Because the herbicide species of application in current agricultural production is various, drug toxicity is big, and residual quantity is high, is easier to make miscellaneous Grass produces resistance, and when the herbicide of single active ingredient uses, being affected its herbicidal efficacy by factors such as resistances can substantially reduce. If formulating new herbicide active compound compound, the initiative cycle of noval chemical compound is longer, puts into huge, at present domestic pesticide enterprise Industry is limited by scale, research strength, and it is unpractical for carrying out creative research to active compound compound.And both compounding between pesticide Can solve the problems, such as that pesticide single dose toxicity is big, effect is poor, and less investment, R&D cycle are short, meet the present situation of domestic agricultural chemicals enterprise, And between different pesticide be used interchangeably can the drug-fast generation of retarding action thing, there is ideal using effect, Between the therefore different mechanisms of action pesticide compounding be current pesticide field study hotspot.And ring sulphur ketone is a kind of new triketone Class herbicide, model of action is more unique, and does not have cross resistance with other herbicides on domestic market, in order to delay Weeds produce to the resistance of ring sulphur ketone, extend its market cycle.My company research staff attempts going ring sulphur ketone and cyanazine, green bristlegrass Tianjin compounds, and to observe whether it has potentiation, through the checking of a large amount of indoor biometricses and field experiment, finds with ring sulphur ketone After carrying out compounding for effective ingredient with cyanazine, atrazine, weed eradication rate greatly improves, and quick-acting is substantially strengthened, and the lasting period also has Certain prolongation, and dosage is lower, reduces agricultural cost, toxicity is less, and residual quantity is less, advantageously in environmental conservation. Can experiment confirms that both have very strong potentiation, and have cyclization sulphur ketone enter for active component with cyanazine, atrazine The compounding research of row, at present at home and abroad there is not yet relevant report.
Content of the invention
Present invention aims to the general change of weeds in recent years and weeds increasingly strengthen to traditional Herbicid resistant Situation, and provide that a kind of herbicidal effect is good, use safety, advantageously in the Herbicidal combinations of environmental protection.
The solution of the present invention is achieved by the following technical measures:
A kind of Herbicidal combinations containing ring sulphur ketone, its feature is in the preparation of this Herbicidal combinations to contain two kinds of A, B Active component, wherein component A are ring sulphur ketone, and B component is cyanazine, at least one in atrazine, outside active component in preparation Remaining group be divided into pesticide used additives and preparation preparation complementary component, the weight of active component A and B in the preparation of this Herbicidal combinations Amount portion rate is 55: 1~1: 50, and in Herbicidal combinations preparation, the total weight parts of active component A and B account for whole total formulation weight part 1%~60%, when the compositionss that active component B is cyanazine and atrazine, the ratio of weight and number of cyanazine and atrazine For 35: 5~5: 40.
In the preparation of above-described Herbicidal combinations, the ratio of weight and number of active component A and B is 35: 5~5: 40.
In above-described Herbicidal combinations preparation, the total weight parts of active component A and B account for whole total formulation weight part Percentage ratio is 8%~45%.
The pesticidal preparations dosage form that above-described Herbicidal combinations can be configured to be wettable powder, suspending agent, cream, Microemulsion, aqueous emulsion, granule and water dispersible granules.
When above-described Herbicidal combinations are wettable powder, in preparation, the ratio of weight and number of each component is:
Active component A 1 ~ 55
Active component B 1 ~ 50
Dispersant 5 ~ 15
Wetting agent 5 ~ 10
Filler 10 ~ 70.
This concrete procedure of processing of Herbicidal Compositions Wettable powder is:By above-mentioned formula by active component A and active component B And dispersant, wetting agent and filler mixing, uniform stirring in stirred tank, in mix homogeneously after jet mill, you can Make the wettable powder of Herbicidal combinations of the present invention.
When above-described Herbicidal combinations are suspending agent, in preparation, the ratio of weight and number of each component is:
Active component A 1 ~ 55
Active component B 1 ~ 50
Dispersant 4~18
Antifreezing agent 1~3
Thickening agent 1~5
Defoamer 0.1~1
Penetrating agent 1~10
PH value regulator 0.1~5
Water supplies 100 parts.
The concrete production stage of this suspending agent is first to mix other auxiliary agents, through high speed shear mix homogeneously, adds effectively Component A and active component B, abrading-ball 2 ~ 3 hours in ball crusher, make a diameter all in below 5mm, of the present invention remove is obtained The aqueous suspension formulations of careless compositionss.
When above-described Herbicidal combinations are aqueous emulsion, in preparation, the ratio of weight and number of each component is:
Active component A 1 ~ 55
Active component B 1 ~ 50
Emulsifying agent 8~20
Solvent 7~25
Stabilizer 3~10
Antifreezing agent 1~5
Defoamer 0.1~3
Thickening agent 1~5
Water supplies 100 parts.
The concrete production stage of this aqueous emulsion is:First active component A and B, solvent and emulsifying agent, stabilizer are added in one Rise, make dissolving uniformly oil phase;Part water, antifreezing agent, defoamer are mixed uniformly aqueous phase;In a kettle. While high-speed stirred, oil phase being added aqueous phase, add thickening agent, slowly adding water until reaching phase inversion point, open cutter and carry out High speed shear, and add remaining water, shearing about half an hour, form the aqueous emulsion of oil-in-water type.Of the present invention weeding group is obtained The aqueous emulsion of compound.
When above-described Herbicidal combinations are water dispersible granules, in preparation, the ratio of weight and number of each component is:
Active component A 1 ~ 55
Active component B 1 ~ 50
Dispersant 5 ~ 20
Wetting agent 7 ~ 15
Disintegrating agent 2 ~ 5
Filler 10 ~ 70.
This concrete procedure of processing of Herbicidal combinations water dispersible granules is:By above-mentioned formula by active component A, B and dispersant, Wetting agent, disintegrating agent and filler mix homogeneously, are pulverized with micro jet, through mediating, are subsequently adding fluidized bed prilling Carry out in drying machine pelletize, drying, after screening through sample analysis, that is, the water-dispersible grain of of the present invention Herbicidal combinations is obtained Agent.
When above-described Herbicidal combinations are cream preparation, in preparation, the ratio of weight and number of each component is:
Active component A 1~55
Active component B 1~50
Emulsifying agent 6~15
Solvent 15~30
Synergist 1~5.
The concrete production stage of this cream preparation be first will active component A, B add solvent in be completely dissolved after add breast Agent, synergist become the oily liquids of transparent and homogeneous, fill, you can make the cream preparation of the present composition after stirring.
When above-described Herbicidal combinations are granule, in preparation, the ratio of weight and number of each component is:
Active component A 1~55
Active component B 1~50
Wetting dispersing agent 5~20
Thickening agent 5~15
Defoamer 1~5
Oleum Ricini supplies 100 parts.
By active component A, B, each component such as dispersant, thickening agent, defoamer and solvent is mixed in the ratio of formula, puts into After grinding in sand milling kettle, send into mixing in mixer for well-distribution and get product.
Above-described emulsifying agent is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol-polyethenoxy Ether sulfosuccinates, styrylphenol polyoxyethylene ether, NPE, castor oil polyoxyethylene ether, fat At least one in sour polyoxyethylene base ester, polyoxyethylene aliphatic alcohol ether.
The above solvent is dimethylbenzene or biodiesel, toluene, diesel oil, methanol, ethanol, n-butyl alcohol, isopropanol, Lignum Pini Nodi At least one in oil, solvent naphtha, dimethylformamide, dimethyl sulfoxide, water equal solvent.
Above-described dispersant is selected from polycarboxylate, lignosulfonates, APES formaldehyde condensation product Sulfate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, At least one in polyoxyethylene carboxylate, glycerine fatty acid ester APEO.
Above-described wetting agent is selected from:Sodium lauryl sulphate, calcium dodecyl benzene sulfonate, pull open powder copper rosinate X., wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene tri-styryl phosphenylic acid salt, spaonin powder, Bombyx mori L., in spaonin powder At least one.
Above-described disintegrating agent is selected from:Bentonite, carbamide, ammonium sulfate, aluminum chloride, citric acid, succinic acid, sodium bicarbonate In at least one.
Above-described thickening agent is selected from:Xanthan gum, hydroxymethyl cellulose, hydroxyethyl cellulose, methylcellulose, silicic acid At least one in magnalium, polyvinyl alcohol.
Above-described stabilizer is selected from:At least one in sodium citrate, resorcinol.
Above-described antifreezing agent is selected from:At least one in ethylene glycol, propylene glycol, glycerol.
Above-described defoamer is selected from:Silicone oil, silicone compound, C10—20Saturated fat acids compound, C8—10Fat At least one in fat alcohol compound.
The above penetrating agent is the mixture of one of laurocapram, JFC or two kinds.
The above pH value regulator is in sodium hydroxide, potassium hydroxide, ammonia, hydrochloric acid, acetic acid, phosphoric acid or citric acid At least one.
Above-described filler is selected from:Kaolin, kieselguhr, bentonite, attapulgite, white carbon, starch, lightweight carbonic acid At least one in calcium.
Above-described Herbicidal combinations preparation can effectively prevent and kill off annual gramineous weed and annual broadleaf weed, can Be used safely in Semen Maydiss, Semen Pisi sativi, Semen Viciae fabae, Rhizoma Solani tuber osi, Caulis Sacchari sinensis, Cotton Gossypii, Semen sojae atricolor, Semen arachidis hypogaeae, Semen Tritici aestivi, Fructus Hordei Vulgaris, Helianthi, Sorghum vulgare Pers., Caulis Sacchari sinensis, In the crop fields such as fruit tree, nursery, forest land, not only to crop safety, and to environment, the same safety of succession crop.Can extensively use In prevent and kill off setaria, knotgrass, Echinochloa, sorghum, Herba Abutili, Herba Xanthii, Amaranthusspinosus L., Chenopodium weeds, Fructus Kochiae, Polygonum weeds, Amaranthus, The weeds such as Datura, Solanum, Tong fiber crops genus, Caulis et Folium Brassicae junceae, Herba stellariae mediae, Herba Eleusines Indicae, Herba Setariae Viridis, Semen Euphorbiae, Herba Eragrostidis pilosae, to intractable grass The weeds that other classification herbicides such as class, glyphosate tolerant grass class, anti-sulfonylurea grass class produce resistance still possess favorable effect, especially It is applied to preventing and kill off of corn field weed.
The having the beneficial effect that of Herbicidal combinations of the present invention:First, the Herbicidal combinations of the present invention have notable increasing Effect acts on, and improves the lasting effect of each composition single dose, enhances the stability under the external environments such as different temperatures, humidity; Second hence it is evident that delayed the generation of herbicide resistance, decreases pesticide Reusability number of times, reduces Pesticide use amount, reduces Agricultural cost;3rd, this Herbicidal combinations is to Crop securify, degradable in the environment after the lasting period, and medicine is in field crops On residual quantity low, be more favorable for environmental protection, improve the safety to second stubble crop for the compositionss, ecological and environmental conservation are had important Meaning.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, present invention specific examples below Illustrate, but the present invention is only limitted to absolutely not these examples.The present invention is combined using indoor bioassay and field test Method.If no special instructions, ratio mentioned below (inclusion percentage ratio) is all ratio of weight and number.
Embodiment 1:By 10 parts of ring sulphur ketone, 5 parts of cyanazine, 10 parts of atrazine, 8 parts of lignosulfonates, dodecyl sulfur 10 parts of sour sodium and 57 parts of mixing of kieselguhr, uniform stirring in stirred tank, in mix homogeneously after jet mill, that is, this is obtained The wettable powder of invention Herbicidal combinations.
Embodiment 2:By 8 parts of ring sulphur ketone, 12 parts of cyanazine, 15 parts of atrazine, 7 parts of naphthalene sulfonic acid-formaldehyde condensation product sodium salt, ten 10 parts of dialkyl benzene sulfonic acids calcium and 47 parts of mixing of kieselguhr, uniform stirring in stirred tank, after jet mill in mixing all Even, that is, the wettable powder of of the present invention Herbicidal combinations is obtained.
Embodiment 3:By 18 parts of ring sulphur ketone, 15 parts of cyanazine, 12 parts of alkylphenol polyoxyethylene, alkylnaphthalene sulfonate 15 Part and 40 parts of mixing of white carbon, uniform stirring in stirred tank, in mix homogeneously after jet mill, that is, the present invention is obtained and removes The wettable powder of careless compositionss.
Embodiment 4:By 13 parts of aliphatic amine polyoxyethylene ether, 1 part of propylene glycol, 3 parts of hydroxymethyl cellulose, 1 part of silicone oil, water 48 Part mixing, through high speed shear mix homogeneously, sequentially adds 15 parts of ring sulphur ketone, 8 parts of cyanazine, 11 parts of atrazine, in ball crusher Abrading-ball 2 ~ 3 hours, makes a diameter all in below 5mm, the aqueous suspension formulations of of the present invention Herbicidal combinations is obtained.
Embodiment 5:By 13 parts of glycerine fatty acid ester APEO, 3 parts of ethylene glycol, 5 parts of hydroxyethyl cellulose, silicone 1 part of compound, 51 parts of mixing of water, through high speed shear mix homogeneously, sequentially add 12 parts of ring sulphur ketone, 10 parts of cyanazine, atrazine 5 Part, abrading-ball 2 ~ 3 hours in ball crusher, make a diameter all in below 5mm, the suspension of of the present invention Herbicidal combinations is obtained Agent formulation.
Embodiment 6:By 8 parts of aliphatic amine polyoxyethylene ether, 2 parts of glycerol, 8 parts of methylcellulose, C8—10Aliphatic alcohols 1 part of compound, 63 parts of mixing of water, through high speed shear mix homogeneously, sequentially add 5 parts of ring sulphur ketone, 7 parts of cyanazine, 15 parts of atrazine, Abrading-ball 2 ~ 3 hours in ball crusher, make a diameter all in below 5mm, the suspending agent of of the present invention Herbicidal combinations are obtained Preparation.
Embodiment 7:By 8 parts of ring sulphur ketone, 17 parts of cyanazine, 18 parts of dimethylformamide, 12 parts of emulsifying agent, 8 parts of stabilizer Mix, dissolving uniformly oil phase;Part water, 2 parts of antifreezing agent, 1 part of NPE are mixed Uniformly aqueous phase;While high-speed stirred, oil phase is added aqueous phase in a kettle., add 5 parts of polyvinyl alcohol, slowly add water Until reaching phase inversion point, opening cutter and carrying out high speed shear, and adding remaining water to supply 100 parts, shearing about half an hour, shape Become the aqueous emulsion of oil-in-water type.The aqueous emulsion of of the present invention Herbicidal combinations is obtained.
Embodiment 8:By 18 parts of ring sulphur ketone, 12 parts of atrazine, 25 parts of n-butyl alcohol, 12 parts of castor oil polyoxyethylene ether, isophthalic 8 parts of diphenol mixes, dissolving uniformly oil phase;By part water, 1 part of glycerol, C10—20Saturated fat acids compound 2 parts mix uniformly aqueous phase;While high-speed stirred, oil phase is added aqueous phase in a kettle., add polyvinyl alcohol 3 parts, slowly adding water until reaching phase inversion point, opening cutter and carrying out high speed shear, and adding remaining water to supply 100 parts, cutting Cut about half an hour, form the aqueous emulsion of oil-in-water type.The aqueous emulsion of of the present invention Herbicidal combinations is obtained.
Embodiment 9:By 25 parts of ring sulphur ketone, 5 parts of cyanazine, 5 parts of atrazine, 5 parts of solvent naphtha, 5 parts of biodiesel, polyoxy second 12 parts of alkene fatty alcohol ether, 6 parts of sodium citrate mix, dissolving uniformly oil phase;By part water, 1 part of propylene glycol, silicone 2 parts of class compound mixes uniformly aqueous phase;While high-speed stirred, oil phase is added aqueous phase in a kettle., add 4 parts of hydroxyethyl cellulose, slowly adds water until reaching phase inversion point, opens cutter and carries out high speed shear, and adds remaining water Supply 100 parts, shearing about half an hour, form the aqueous emulsion of oil-in-water type.The aqueous emulsion of of the present invention Herbicidal combinations is obtained.
Embodiment 10:By 8 parts of ring sulphur ketone, 25 parts of cyanazine, 5 parts of atrazine, 8 parts of polyoxyethylene carboxylate, spaonin powder 10 parts, 2 parts of alkylnaphthalene sulfonate, 5 parts of aluminum chloride and 40 parts of precipitated calcium carbonate, 7 parts of mix homogeneously of bentonite, use ultra micro air-flow Pulverizer is pulverized, through mediating, be subsequently adding in fluidized-bed granulation dryer carry out pelletize, drying, after screening through sample analysis, that is, The water dispersible granules of of the present invention Herbicidal combinations are obtained.
Embodiment 11:By 25 parts of ring sulphur ketone, 25 parts of cyanazine, 5 parts of atrazine, 12 parts of dispersant, 15 parts of wetting agent, disintegrate 5 parts of agent and 35 parts of mix homogeneously of filler, are pulverized with micro jet, through mediating, are subsequently adding fluidized bed prilling and are dried Carry out in machine pelletize, drying, after screening through sample analysis, that is, the water dispersible granules of of the present invention Herbicidal combinations are obtained.
Embodiment 12:By 12 parts of ring sulphur ketone, 18 parts of cyanazine, 11 parts of naphthalene sulfonic acid-formaldehyde condensation product sodium salt, dodecyl sulfur 10 parts of sour sodium, 6 parts of succinic acid and 43 parts of mix homogeneously of kieselguhr, are pulverized with micro jet, through mediating, are subsequently adding Carry out in fluidized-bed granulation dryer pelletize, drying, after screening through sample analysis, that is, of the present invention Herbicidal combinations are obtained Water dispersible granules.
Embodiment 13:10 parts of ring sulphur ketone, 22 parts of atrazine, 53 parts of dimethylformamide are thoroughly mixed after dissolving and add 10 parts of polyoxyethylene aliphatic alcohol ether, 5 parts of Magnesiumaluminumsilicate become the oily liquids of transparent and homogeneous, fill, you can make after stirring The cream preparation of the present composition.
Embodiment 14:By 13 parts of ring sulphur ketone, 8 parts of cyanazine, 12 parts of atrazine, 53 parts of dimethylformamide is thoroughly mixed 10 parts of APES sulfosuccinate is added, 4 parts of hydroxymethyl cellulose becomes homogeneous after stirring after dissolving Transparent oily liquids, fill, you can make the cream preparation of the present composition.
Embodiment 15:17 parts of ring sulphur ketone, 8 parts of cyanazine, 6 parts of atrazine, 54 parts of Oleum Terebinthinae are thoroughly mixed after dissolving again The oily liquids of one-tenth transparent and homogeneous after adding 13 parts of NPE, 2 parts of methylcellulose to stir, fill, that is, Can be made into the cream preparation of the present composition.
Embodiment 16:By 22 parts of active component ring sulphur ketone, 12 parts of cyanazine, 12 parts of alkylphenol polyoxyethylene, methylol 8 parts of cellulose, 2 parts of silicone compound and the 44 parts of mixing of solvent Oleum Ricini, put into after grinding in sand milling kettle, send into intimate mixing The granular preparation that the present composition is obtained is mixed in device.
Embodiment 17:By 27 parts of active component ring sulphur ketone, 2 parts of cyanazine, 3 parts of atrazine, alkylphenol polyoxyethylene 12 Part, 10 parts of hydroxymethyl cellulose, 1 part of silicone oil and the 45 parts of mixing of solvent Oleum Ricini, put into after grinding in sand milling kettle, send into homogenizing and mix The granular preparation that the present composition is obtained is mixed in clutch.
Indoor virulence test and field experiment.
Indoor virulence measuring.
1st, joint toxicity measuring
Test site:Test is in Laiyang Shandong Province corn trials field.
Subjects:Corn field weed barnyard grass and blite.
Test medicine:25% ring sulphur ketone cyanazine ratio of weight and number is respectively 20:5、18:7、16:9、14:11、12:13、 10:15、8:17, totally 7 mixture combinations.
Assay method:Field test method.In barnyard grass and blite 2-5 later stage leaf phase stem and leaf spraying treatment;The spraying amount of being watered 750 Liter/hectare, measurement in 10 days weeds fresh weight alive after dispenser, often process five repetitions, synergy type is judged using Colby method.
Colby law theory preventive effect computing formula is:
E0=XY/100;
E in formula0For theoretical preventive effect after mixed with B for single dose A;X is herbicide A weeds weight under certain dosage is that comparison is miscellaneous The percent of careless weight;The percent that Y is comparison weeds weight for herbicide B weeds weight under certain dosage;If E is A, B mixing The percent being comparison weeds weight with the weeds weight of rear actual measurement.
If E is significantly less than E0, then for potentiation;E and E0, close, then for summation action;E is significantly greater than E0, then for short of money Anti- effect.
Result of the test:
Table 1 ring sulphur ketone is compounded to Semen Maydiss barnyard grass, blite joint toxicity measuring with cyanazine
Virulence test example shows, ring sulphur ketone differs more than 10% with the measured value of cyanazine with theoretical value, and it is substantially poor to have Away from both compound with notable synergistic effect, and 25% dosage form medium ring sulphur ketone is 18 with the ratio of weight and number of cyanazine:7 Hes 16:When 9, potentiation, the most substantially it is proposed that doing further field experiment in this scope, evaluates its synergistic effect with more preferable.
2nd, joint toxicity measuring
Test site:Test is in Shandong Province Laiyang corn trials field.
Subjects:Corn field weed barnyard grass and blite.
Test medicine:23% ring sulphur ketone atrazine ratio of weight and number is respectively 20:3、18:5、16:7、14:9、12:11、 10:13、8:15, totally 7 mixture combinations.
Assay method:Field test method.In barnyard grass and blite 2-5 later stage leaf phase stem and leaf spraying treatment;The spraying amount of being watered 750 Liter/hectare, measurement in 10 days weeds fresh weight alive after dispenser, often process five repetitions, synergy type is judged using Colby method.
Colby law theory preventive effect computing formula is:
E0=XY/100
E in formula0For theoretical preventive effect after mixed with B for single dose A;X is herbicide A weeds weight under certain dosage is that comparison is miscellaneous The percent of careless weight;The percent that Y is comparison weeds weight for herbicide B weeds weight under certain dosage;If E is A, B mixing The percent being comparison weeds weight with the weeds weight of rear actual measurement.
If E is significantly less than E0, then for potentiation;E and E0, close, then for summation action;E is significantly greater than E0, then for short of money Anti- effect.
Result of the test:
Table 2 ring sulphur ketone and atrazine are to Semen Maydiss barnyard grass, blite joint toxicity measuring
Virulence test example shows, ring sulphur ketone differs more than 10% with the measured value of atrazine with theoretical value, and it is substantially poor to have Away from both compound with notable synergistic effect, and 23% dosage form medium ring sulphur ketone is 18 with the quality parts ratio of atrazine:5 Hes 16:When 7, potentiation, more substantially it is proposed that doing further field experiment in this scope, evaluates its synergistic effect with more preferable.
Field control effectiveness test 1.
In May, 2013 in Laiyang Shandong Province agriculture university corn trials field, corn seeding in mid or late May, general milpa The weeds such as barnyard grass seeding stage in the first tenday period of a month in May, peak period at 5 the end of month at the beginning of 6 months, what during this experiment dispenser, field barnyard grass had reach 2 ~ 3 leaf phases, sprayed respectively with following test medicaments and contrast agents, trial zone area 20m2, three repetitions, enter within 10 days after medicine Row effect research.Accidental sampling is adopted, Sampling Area is 1m during investigation2, investigation survival strain number.Result of the test is as follows:
Table 3 ring sulphur ketone and cyanazine, atrazine field efficiency test
This field experiment result shows, 16% ring sulphur ketone+4% cyanazine+6% atrazine is to corn field grass family, dried tuber, wealthy The preventive effect of the weeds such as leaf grass is all preferable, and the average preventive effect after 10 days is 87.22%, 89.40%, 91.88% hence it is evident that being better than each single dose Preventive effect.After emergence of corn, estimated according to field, apply the crop growth conditions of 16% ring sulphur ketone+4% cyanazine+6% atrazine(Color Pool, highly, the index such as sturdy)It is better than the crop applying other single doses, before emergence of corn, in the range of test dose, other works Thing growth is normal, has no that plant produces poisoning and abnormal phenomena, illustrates that it is safe to Semen Maydiss and other crops.And corn field The other biologicals such as middle locust no significantly reduce or the phenomena of mortality, illustrate free of toxic effects to other biological.
Field control effectiveness test 2.
In May, 2012 in Laiyang Shandong Province agriculture university corn trials field, corn seeding in mid or late May, general milpa The weeds such as barnyard grass seeding stage in the first tenday period of a month in May, peak period at 5 the end of month at the beginning of 6 months, what during this experiment dispenser, field barnyard grass had reach 2 ~ 3 leaf phases, sprayed respectively with following test medicaments and contrast agents, trial zone area 20m2, three repetitions, enter within 10 days after medicine Row effect research.Accidental sampling is adopted, Sampling Area is 1m during investigation2, investigation survival strain number.Result of the test is as follows:
Table 4 ring sulphur ketone and cyanazine, atrazine field efficiency test
This field experiment result shows, 12% ring sulphur ketone+8% cyanazine+4% atrazine is to corn field grass family, dried tuber, wealthy The preventive effect of the weeds such as leaf grass is all preferable, and the average preventive effect after 10 days is 88.39%, 90.65%, 92.21% hence it is evident that being better than each single dose Preventive effect.Estimated according to field, apply the crop growth conditions of 12% ring sulphur ketone+8% cyanazine+4% atrazine(Color and luster, highly, slightly The index such as strong)It is better than the crop applying remaining single dose, corn growth is normal, before emergence of corn, in the range of test dose, other Plant growth is normal, has no that plant produces poisoning and abnormal phenomena, illustrates that it is safe to Semen Maydiss and other crops.And Semen Maydiss The other biologicals such as Tanaka locust no significantly reduce or the phenomena of mortality, illustrate free of toxic effects to other biological.

Claims (1)

1. a kind of Herbicidal combinations containing ring sulphur ketone it is characterised in that:Ring containing active component in the preparation of this Herbicidal combinations Sulphur ketone, cyanazine, atrazine, its medium ring sulphur ketone:Cyanazine:The percentage by weight of atrazine is 16:4:6 or 12:8:4, preparation Remaining group outside middle active component is divided into pesticide used additives and preparation preparation complementary component, active component in Herbicidal combinations preparation Total weight parts account for the 8%~45% of whole total formulation weight part, the pesticidal preparations dosage form that Herbicidal combinations can be configured to is Wettable powder, suspending agent, cream, microemulsion, aqueous emulsion, granule and water dispersible granules.
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CN107232207A (en) * 2016-03-29 2017-10-10 河南传奇农业科技有限公司 A kind of herbicidal composition containing ring sulphur ketone, Garagard and isoxadifen
CN106417318A (en) * 2016-08-31 2017-02-22 浙江中山化工集团股份有限公司 Corn field compounding weeding agent composition
CN106561669A (en) * 2016-11-10 2017-04-19 陕西上格之路生物科学有限公司 Ternary weeding composition
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