CN105165842A - Weeding composition and preparation method and application thereof - Google Patents
Weeding composition and preparation method and application thereof Download PDFInfo
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- CN105165842A CN105165842A CN201510628451.4A CN201510628451A CN105165842A CN 105165842 A CN105165842 A CN 105165842A CN 201510628451 A CN201510628451 A CN 201510628451A CN 105165842 A CN105165842 A CN 105165842A
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Abstract
The invention discloses a weeding composition and a preparation method and application thereof, and relates to the technical field of combination of pesticides. Atrazine and fluroxypyr or ester of fluroxypyr serve as effective ingredients of the weeding composition, and the weight ratio of the atrazine to fluroxypyr or ester of fluroxypyr is 160:1-5:8. After the effective ingredients of the weeding composition are combined, the pesticide effect of the weeding composition is obviously superior to that of single agents of two effective ingredients, obvious synergism is achieved, and the herbicide controlling spectrum is expanded. Pesticide preparation auxiliary ingredients are added to the weeding composition so as to prepare various types of agents suitable for being used in agriculture, especially wettable powder, and after the two effective ingredients are prepared into the wettable powder, the agent form system is stable, and conforms to the conventional form characteristics of materials. Compared with other agent forms, the preparation is higher in content and relatively lowest in cost; meanwhile, the process technology is mature in production, operation is easy, and obvious market promotion value is achieved.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations and its preparation method and application, refer to a kind of be active ingredient Herbicidal combinations and the application thereof of atrazine and fluroxypyr or its ester especially, belong to technical field of pesticide combination.
Background technology
In recent years, due to a large amount of uses of various agricultural chemicals, cause agricultural weed pesticide resistance more and more higher, simultaneously, grass when weeds occur is mutually complicated, and grassy weed, broad leaved weed, the mixed life of nutgrass flatsedge multiclass weeds, single variety weed killer herbicide uses can not solve whole weed problem.All can show defect in a certain respect and limitation.
Atrazine (atrazine), the chloro-4-diethylin of chemical name 2--6-isopropylamine base-1,3,5-triazines, has another name called atrazine, Aatrex, Primatola, gram esaprim, grams-30027 etc.Atrazine is before interior suction selectivity seedling, seedling rear enclosed weed killer herbicide.Root absorption is main, and cauline leaf absorbs seldom.Herbicide effect and the same Simanex of selectivity, easily by rainwater drip washing to soil comparatively deep layer, also effective to some dark root grass, but easily produce poisoning.Lasting period is also longer.Its herbicide spectrum is comparatively wide, can prevent and kill off multiple annual gramineae and broad leaved weed.Be applicable to the dry crops such as corn, Chinese sorghum, sugarcane, fruit tree, nursery, forest land and prevent and kill off lady's-grass, barnyard grass, green foxtail, nutgrass flatsedge, amur foxtail, knotweed, lamb's-quarters, Cruciferae, pulse family weeds, especially there is good selectivity (because having detoxication mechanisms in Corn) to corn, also having certain inhibitory action to some perennial weed.But atrazine poisoning, the lasting period is also longer, the anti-heterodynes of pernicious broad leaved weed such as water peanut, field bindweed, dayflower.
Atrazine structural formula:
Fluroxypyr (fluroxypyr), have another name called that fluorine grass is fixed, fluroxypyr, make that it is grand, control green bristlegrass spirit etc., be the organic heterocyclic class selectivity inner sucting conduction type herbicide after seedling of The Dow Agrosciences, LLC. (DowAgroSciencesCompany) Development and Production, be applicable to prevent and kill off the various broad leaved weeds of gramineous crop Tanaka such as wheat, barley, corn.Now domesticize.Fluroxypyr belongs to pyridine fluoroacetic acid class weed killer herbicide, has Uptake and translocation effect, has typical hormone herbicide to react.Using after seedling, there is the reaction of classical hormones class weed killer herbicide in sensitive crop.Cereal crop uses optimum period wider, can be used for the ground such as wheat, barley, corn, grape and orchard, pasture, forest farm and prevent and kill off broad leaved weed, as weeds such as clearvers, field bindweed, shepherd's purse, chickweed, volume stem amaranth, kitchen gardens, invalid to grassy weed.But fluroxypyr is invalid to grassy weed, quick-acting is poor, and the dead grass time is long, poor to lamb's-quarters, knotweed, Cruciferae class broad leaved weed preventive effect, without sealing effect.
Fluroxypyr structural formula:
There is defect in various degree in the weed killer herbicide kind containing single-activity component, as after continuous administration, weeds easily develop immunity to drugs, herbicide spectrum narrows, and causes the problems such as environmental pollution on control of weeds.
Weed killer herbicide is rationally composite is improve preventive effect, expand herbicide spectrum or widen service time, delaying the speed of shift of weed community, reducing the resistance risk that the single use of agricultural chemicals brings, alleviate the pollution to environment, reduce a kind of effective ways of use cost and reduction herbicide residue.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of drug cost is low, broad weed-killing spectrum, Herbicidal combinations to the remarkable synergy of the control efficiency of weeds.
For solving the problems of the technologies described above, the invention provides technical scheme as follows:
Herbicidal combinations of the present invention, with atrazine and fluroxypyr or its ester for active ingredient, the ratio of weight and number of atrazine and fluroxypyr or its ester is 160:1 ~ 5:8; Further, the ratio of weight and number of active ingredient atrazine and fluroxypyr or its ester is 40:1 ~ 2.5:1; Further, the ratio of weight and number of active ingredient atrazine and fluroxypyr or its ester is 20:1 ~ 5:1.The ester of described fluroxypyr is different monooctyl ester, and the parts by weight of the different monooctyl ester of fluroxypyr are by mole equivalent calculation.
Also containing pesticidal preparations auxiliary element in Herbicidal combinations of the present invention, to make the formulation being applicable to agriculturally using.The more excellent formulation of Herbicidal combinations is wetting powder.
The wetting powder of Herbicidal combinations of the present invention, the parts by weight of each component are as follows: 5 ~ 80 parts of atrazines, 0.5 ~ 8 part of fluroxypyrs or its esters, 0.5 ~ 10 portion of first surface activating agent, 1.0 ~ 20 portions of second surface activating agents, 0 ~ 30 part of anti-caking agent, 5 ~ 65 parts of fillers, the ester of described fluroxypyr is different monooctyl ester, and the parts by weight of the different monooctyl ester of fluroxypyr are by mole equivalent calculation;
Wherein, described first surface activating agent is one or more in lauryl sodium sulfate, neopelex, sodium lignin sulfonate, naphthalene sulphonate or polycarboxylate;
Described second surface activating agent is one or more in Disodium sulfosuccinate, fatty alcohol-polyoxyethylene ether, polyoxyethylene alkylphenol ether, castor oil polyoxyethylene ether or alkyl alcohol alkoxylates;
Described anti-caking agent is one or more in white carbon or aluminium-magnesium silicate;
Described filler is one or more in kaolin, diatomite, talcum powder, anhydrous sodium sulfate or ammonium sulfate.
Described alkyl alcohol alkoxylates be sec-octyl alcohol alcoxylates and or isooctanol alcoxylates.
The preparation method of Herbicidal combinations of the present invention, comprises the steps:
Step 1: take each component by formulation weight portion rate for subsequent use,
Step 2: each component mixed, carries out mechanical crushing,
Step 3: by the material after mechanical crushing through air-flow crushing to certain fineness, then to mix, obtain product.
Herbicidal combinations of the present invention, can be used for the pesticidal preparations preparing controlling weeds.Be particularly useful for making the pesticidal preparations of control of maize, sorghum field broad leaved weed and grassy weed.
Herbicidal combinations of the present invention can finished product preparation form provide, namely in Herbicidal combinations, each material mixes, or the composition of Herbicidal combinations also can provide with unit dose form, directly directly mix in bucket or tank before using, be then diluted to required concentration.
Herbicidal combinations of the present invention is applied to the method for controlling weeds, it is with ratio of weight and number 160:1 ~ 5:8 scope, use each active ingredient atrazine and fluroxypyr or its ester, it is used after mixing in proportion, use in proportion simultaneously or use successively in proportion.Herbicidal combinations of the present invention, can carry out soil treatment before weeds emerge, or weeds emerge after carry out cauline leaf process.
Herbicidal combinations of the present invention, can be used for the pesticidal preparations preparing controlling weeds.Be particularly useful for making the pesticidal preparations of control of maize, sorghum field weeds.
Herbicidal combinations of the present invention can be used for corn, broad leaved weed is prevented and kill off in sorghum field, grass tree weeds, and its successful is better than the effect of each active ingredient single dose, has good application prospect and promotional value.
The present invention is composite by two kinds of active principles of different mechanism of action, the different mode of action, has synergistic function, can reduce pesticide dosage, reduces use cost.
Advantage of the present invention is obvious, is mainly manifested in:
1. Herbicidal combinations of the present invention, without any antagonism between each composition, synergistic effect is remarkable.
2. Herbicidal combinations be used alone single active ingredient and compare, expand herbicide spectrum, herbicidal effect is better.
3. Herbicidal combinations reduces the risk that weeds produce resistance, reduces residual, reduces each single dose usage amount, reduce environmental pressure.
4. easy and simple to handle, compound synergic can reduce the usage amount of each single dose, and cost is low, easily promotes.
Be solid-state under fluroxypyr different monooctyl ester normal temperature, methylated vegetable oil can be dissolved on a small quantity or be dissolved in a large number in aromatic hydrocarbons organic solvent, but all there is the risk of crystallization under cryogenic conditions; And it becomes wetting powder with atrazine, processing technology is simple, and dosage system is stablized, and meets the conventional morphological feature of material.Atrazine field usage amount is comparatively large simultaneously, and wetting powder easily obtained high level product, effectively reduce field use cost.
Atrazine and fluroxypyr composite be wetting powder, associated production technology and coordinative composition of equipments are ripe, low production cost.Take inert filler as dispersion medium, not containing organic solvent, safer to plant, not easily produce poisoning, Environmental compatibility is good.Atrazine and fluroxypyr composite be wetting powder, compared to the thermodynamic unstable system of suspended emulsion and oil-suspending agent, bin stability is better.Atrazine and fluroxypyr composite be wetting powder, less to the stability influence of system after adding the builder of wetting osmosis type, the range of choice of Synergistic type auxiliary agent is larger than suspended emulsion.Though oil-suspending agent can ensure good drug effect, this formulation generally processes content lower (less than 30%), use carrier oil and auxiliary agent cost high, comprehensive use cost is far above wetting powder.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, will be described in detail with specific embodiment below, but the present invention is limited to absolutely not these examples.The following stated is only the good embodiment of the present invention, only in order to explain the present invention, therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Making agricultural chemicals by composite for different agriculture the effective elements of the medicine, is current development novel pesticide and the one of preventing and treating agriculturally resistance effectively and efficiently mode.After the pestsides synthesis of different cultivars, usually show a large amount of three kinds of type of action: summation action, synergistic effect and antagonism.Compound synergic is well filled a prescription, and can significantly improve actual control efficiency, and expand herbicide spectrum, reducing the usage amount of agricultural chemicals, thus contribute to delaying drug-fast generation speed, is the important means of integrated control.
The present composition with atrazine for a kind of active ingredient (A), fluroxypyr or its ester are another kind of active ingredient (B), composition binary built, combine between them, to control of weeds, there is obvious synergistic function, and being not only the simple superposition of two kinds of pharmacy effects, this clearly can recognize from following test result.
(1) Toxicity Determination test
Assay method: indoor pot method, carries out cauline leaf process with spray tower when eleusine indica 3-4 leaf phase, field bindweed 6 leaf phase.After medicine, 21d measures fresh weight inhibition.
Evaluate weed killer herbicide mode of application (NY/T1155.7-2006) by Gowing method, formula is as follows:
E＝X+Y-X*Y/100。
In formula: the fresh weight preventive effect that X is atrazine consumption to weeds when being P; The fresh weight preventive effect that Y is fluroxypyr consumption to weeds when being Q; E
0fresh weight preventive effect to weeds during for being Q to the fresh weight preventive effect+fluroxypyr consumption of weeds when atrazine consumption is P; E is the actual preventive effect of Mixed Pharmacy.
Evaluation criterion: E-E
0>10% is synergistic effect, E-E
0<-10% is antagonism, E-E
0be worth between theoretical value ± 10% be addition.
Following result of the test can show, the combination of above-mentioned two active ingredients of the present invention, has significant synergies, and expand herbicide spectrum, composite rear drug effect is obviously better than each single dose effect.
Test one: pot experiment
With the above-mentioned atrazine of the present invention and fluroxypyr composition to eleusine indica 3 leaf phase, field bindweed 6 leaf phase grassy weed representatively and the broad leaved weed indoor virulence test result of carrying out as shown in table 1.
Table 1 atrazine and the composite indoor virulence test result to grassy weed and broad leaved weed of fluroxypyr
The result of the test display of table 1, within the scope of ratio of weight and number 160:1 ~ 5:8, atrazine is with fluroxypyr two kinds of compositions are composite obvious synergistic effect, and expand herbicide and compose, after mixture, drug effect is significantly better than two single dose routine tests effects.Therefore, anyon within the scope of ratio of weight and number 160:1 ~ 5:8 is interval, atrazine and fluroxypyr composite, all there is equal Complex synergism, and there is obvious synergistic effect.Further, the ratio of weight and number of active ingredient atrazine and fluroxypyr or its ester is 40:1 ~ 2.5:1; Further, the ratio of weight and number of active ingredient atrazine and fluroxypyr or its ester is 20:1 ~ 5:1.
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.Arbitrary feature disclosed in this specification, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Herbicidal combinations of the present invention, active ingredient is atrazine and fluroxypyr or its ester.For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be 160:1-5:8 at the ratio of weight and number of described component atrazine and fluroxypyr or its ester, further ratio of weight and number is within the scope of 40:1-2.5:1, constructed embodiment is described in detail, but the present invention is limited to absolutely not these examples.
In addition, inventor also found through experiments, and atrazine and fluroxypyr or its ester binary built, be better than fluroxypyr and other triazine herbicide binary built effects.In order to this problem is clearly described, at ratio of weight and number 160:1-5:8, and ratio of weight and number is within the scope of 40:1-2.5:1, builds composite comparative example, is described in detail.But because length is limited, representative several comparative examples can only be enumerated.It should be pointed out that atrazine and fluroxypyr or its ester binary built, be better than fluroxypyr and other triazine herbicide binary built effects, be not only confined in limited comparative example.
Herbicidal combinations of the present invention can be prepared into by known method any one formulation of applicable agricultural use as water dispersible granules, suspending agent, dispersible oil-suspending agent, suspended emulsion, wetting powder etc., reasonable formulation is wetting powder.In all formulas, percentage is parts by weight.The processing technology of the various formulation of the present composition is prior art, can change to some extent according to different situations.
Below in conjunction with embodiment, content of the present invention is described further.
Embodiment 1:82.6% atrazine fluroxypyr wetting powder (160:1)
Composition: atrazine 80 parts, the different monooctyl ester of fluroxypyr (acid meter) 0.5 part, lauryl sodium sulfate 1.0 parts, sodium lignin sulfonate 6.0 parts, isooctanol alcoxylates 3.0 parts, white carbon 1.0 parts, 6.0 parts, diatomite.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 82.6% atrazine fluroxypyr wetting powder.
Comparative example 1:82.6% ametryn fluroxypyr wetting powder (160:1)
Composition: ametryn 80 parts, the different monooctyl ester of fluroxypyr (acid meter) 0.5 part, lauryl sodium sulfate 1.0 parts, sodium lignin sulfonate 6.0 parts, isooctanol alcoxylates 3.0 parts, white carbon 1.0 parts, 6.0 parts, diatomite.
Preparation method: the same.
Embodiment 2:41.1% atrazine fluroxypyr wetting powder (80:1)
Composition: atrazine 40 parts, the different monooctyl ester of fluroxypyr (acid meter) 0.5 part, lauryl sodium sulfate 1.0 parts, sodium lignin sulfonate 6.0 parts, isooctanol alcoxylates 10.0 parts, white carbon 1.0 parts, kaolin 40 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 41.1% atrazine fluroxypyr wetting powder.
Comparative example 2:41.1% ametryn fluroxypyr wetting powder (80:1)
Composition: ametryn 40 parts, the different monooctyl ester of fluroxypyr (acid meter) 0.5 part, lauryl sodium sulfate 1.0 parts, sodium lignin sulfonate 6.0 parts, isooctanol alcoxylates 10.0 parts, white carbon 1.0 parts, kaolin 40 parts.
Preparation method: the same.
Embodiment 3:41% atrazine fluroxypyr wetting powder (40:1)
Composition: atrazine 40.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 1.0 parts, white carbon 3.0 parts, sodium lignin sulfonate 6.0 parts, neopelex 1.0 parts, fatty alcohol-polyoxyethylene ether 10.0 parts, kaolin 38.5 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 41% atrazine fluroxypyr wetting powder.
Comparative example 3:41% ametryn fluroxypyr wetting powder (40:1)
Composition: ametryn 40.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 1.0 parts, white carbon 3.0 parts, sodium lignin sulfonate 6.0 parts, neopelex 1.0 parts, fatty alcohol-polyoxyethylene ether 10.0 parts, kaolin 38.5 parts.
Preparation method: the same.
Embodiment 4:64% atrazine fluroxypyr wetting powder (20:1)
Composition: atrazine 60.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 3.0 parts, white carbon 8.0 parts, sodium lignin sulfonate 6.0 parts, neopelex 1.0 parts, sec-octyl alcohol alcoxylates 6.0 parts, kaolin 13.5 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 64% atrazine fluroxypyr wetting powder.
Comparative example 4:64% nicosulfuron atrazine fluroxypyr wetting powder (10:10:1)
Nicosulfuron 30.0 parts, atrazine 30.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 3.0 parts, white carbon 8.0 parts, sodium lignin sulfonate 6.0 parts, neopelex 1.0 parts, sec-octyl alcohol alcoxylates 6.0 parts, kaolin 13.5 parts.
Preparation method: the same.
Embodiment 5:33% atrazine fluroxypyr wetting powder (10:1)
Composition: atrazine 30.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 3.0 parts, sodium lignin sulfonate 6.0 parts, sodium sulfosuccinate 5.0 parts, polyoxyethylene alkylphenol ether 1.0 parts, white carbon 8.0 parts, 45.0 parts, diatomite.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 33% atrazine fluroxypyr wetting powder.
Comparative example 5:33% nicosulfuron atrazine fluroxypyr wetting powder (1:9:1)
Composition: nicosulfuron 3.0 parts, atrazine 27.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 3.0 parts, sodium lignin sulfonate 6.0 parts, sodium sulfosuccinate 5.0 parts, polyoxyethylene alkylphenol ether 1.0 parts, white carbon 8.0 parts, 45.0 parts, diatomite.
Preparation method: the same.
Embodiment 6:66% atrazine fluroxypyr wetting powder (8:1)
Composition: atrazine 56.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 7.0 parts, white carbon 15.0 parts, sodium lignin sulfonate 6.0 parts, polyoxyethylene alkylphenol ether 3.0 parts, neopelex 1.0 parts, talcum powder 7.5 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 66% atrazine fluroxypyr wetting powder.
Comparative example 6:65% nicosulfuron atrazine fluroxypyr wetting powder (7:1:1)
Composition: nicosulfuron 49.0 parts, atrazine 7.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 7.0 parts, white carbon 15.0 parts, sodium lignin sulfonate 6.0 parts, polyoxyethylene alkylphenol ether 3.0 parts, neopelex 1.0 parts, talcum powder 7.5 parts.
Preparation method: the same.
Embodiment 7:24.5% atrazine fluroxypyr wetting powder (5:1)
Composition: atrazine 20.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 4.0 parts, lauryl sodium sulfate 1.0 parts, sodium lignin sulfonate 6.0 parts, sec-octyl alcohol alcoxylates 5.0 parts, white carbon 10.0 parts, kaolin 52.0 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 24.5% atrazine fluroxypyr wetting powder.
Comparative example 7:24.5% ametryn fluroxypyr wetting powder (5:1)
Composition: ametryn 20.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 4.0 parts, lauryl sodium sulfate 1.0 parts, sodium lignin sulfonate 6.0 parts, sec-octyl alcohol alcoxylates 5.0 parts, white carbon 10.0 parts, kaolin 52.0 parts.
Preparation method: the same.
Embodiment 8:21% atrazine fluroxypyr wetting powder (2.5:1)
Composition: atrazine 15.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 6.0 parts, sodium sulfosuccinate 5.0 parts, polyoxyethylene alkylphenol ether 1.0 parts, sodium lignin sulfonate 6.0 parts, white carbon 12.0 parts, kaolin 52.0 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 21% atrazine fluroxypyr wetting powder.
Comparative example 8:21% ametryn fluroxypyr wetting powder (2.5:1)
Composition: ametryn 15.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 6.0 parts, sodium sulfosuccinate 5.0 parts, polyoxyethylene alkylphenol ether 1.0 parts, sodium lignin sulfonate 6.0 parts, white carbon 12.0 parts, kaolin 52.0 parts.
Preparation method: the same.
Embodiment 9:16% atrazine fluroxypyr wetting powder (1:1)
Composition: atrazine 8.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, white carbon 15.0 parts, benzyl naphthalenesulfonate formaldehyde condensation compound 6.0 parts, polyoxyethylene alkylphenol ether 5.0 parts, neopelex 2.0 parts, talcum powder 52.5 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 16% atrazine fluroxypyr wetting powder.
Comparative example 9:16% ametryn fluroxypyr wetting powder (1:1)
Composition: ametryn 8.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, white carbon 15.0 parts, benzyl naphthalenesulfonate formaldehyde condensation compound 6.0 parts, polyoxyethylene alkylphenol ether 5.0 parts, neopelex 2.0 parts, talcum powder 52.5 parts.
Preparation method: the same.
Embodiment 10:13% atrazine fluroxypyr wetting powder (5:8)
Composition: atrazine 5.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, white carbon 15.0 parts, benzyl naphthalenesulfonate formaldehyde condensation compound 6.0 parts, polyoxyethylene alkylphenol ether 2.0 parts, neopelex 1.0 parts, talcum powder 59.5 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes, and can obtain 13% atrazine fluroxypyr wetting powder.
Comparative example 10:13% nicosulfuron atrazine fluroxypyr wetting powder (3:2:8)
Composition: nicosulfuron 3.0 parts, atrazine 2.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, white carbon 15.0 parts, benzyl naphthalenesulfonate formaldehyde condensation compound 6.0 parts, polyoxyethylene alkylphenol ether 2.0 parts, neopelex 1.0 parts, talcum powder 59.5 parts.
Preparation method: the same.
Embodiment 11:82.6% atrazine fluroxypyr water dispersible granules (160:1)
Composition: atrazine 80.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 0.5 part, lauryl sodium sulfate 1.0 parts, maleic acrylic copolymer sodium salt 7.0 parts, white carbon 3.0 parts, kaolin 6.0 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes and carries out wet granulation, oven dry, can obtain 82.6% atrazine fluroxypyr water dispersible granules.
Embodiment 12:41.1% atrazine fluroxypyr water dispersible granules (80:1)
Composition: atrazine 40 parts, the different monooctyl ester of fluroxypyr (acid meter) 0.5 part, lauryl sodium sulfate 1.0 parts, maleic acrylic copolymer sodium salt 6.0 parts, sec-octyl alcohol alcoxylates 5.0 parts, white carbon 3.0 parts, kaolin 43.0 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes and carries out wet granulation, oven dry, can obtain 41.1% atrazine fluroxypyr water dispersible granules.
Embodiment 13:41% atrazine fluroxypyr suspended emulsion (40:1)
Composition: atrazine 40.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 1.0 parts, trimethylbenzene 5.0 parts, polyoxyethylene alkylphenol ether phosphate 4.0 parts, polyoxyethylene polyoxypropylene base ether block copolymers 3.0 parts, ethylene glycol 4.0 parts, xanthans 0.15 part, silicone defoaming agent 0.1 part, Kathon CG 0.5 part, soft water 40.5 parts.
Preparation method: the former medicine of different for fluroxypyr monooctyl ester and emulsifiers dissolve are formed homogeneous oil phase in trimethylbenzene, other each component mixing by it again, through high speed shear homogenize, again by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 41% atrazine fluroxypyr suspended emulsion can be obtained.
Embodiment 14:27% atrazine fluroxypyr dispersibles oil-suspending agent (20:1)
Composition: atrazine 20.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 1.0 parts, dehydration sorbic alcohol fatty acid ester 6.0 parts, castor oil polyoxyethylene ether 4.0 parts, polyoxyethylene polyoxypropylene base ether block copolymers 4.0 parts, organobentonite 2.5 parts, methyl oleate 41.5 parts.
Preparation method: each component mixed, through high speed shear homogenize, then by sand mill sand milling 2-3 hour, makes average grain diameter reach 1-5 micron, can obtain the different monooctyl ester of 27% atrazine fluroxypyr and dispersible oil-suspending agent.
Embodiment 15:33% atrazine fluroxypyr suspended emulsion (10:1)
Composition: atrazine 30.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 3.0 parts, trimethylbenzene 8.0 parts, polyoxyethylene alkylphenol ether phosphate 4.0 parts, polyoxyethylene polyoxypropylene base ether block copolymers 3.0 parts, ethylene glycol 4.0 parts, xanthans 0.15 part, silicone defoaming agent 0.1 part, Kathon CG 0.5 part, soft water 45.0 parts.
Preparation method: the former medicine of different for fluroxypyr monooctyl ester and emulsifiers dissolve are formed homogeneous oil phase in trimethylbenzene, other each component mixing by it again, through high speed shear homogenize, again by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 33% atrazine fluroxypyr suspended emulsion can be obtained.
Embodiment 16:16% atrazine fluroxypyr dispersibles oil-suspending agent (1:1)
Composition: atrazine 8.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, dehydration sorbic alcohol fatty acid ester 6.0 parts, castor oil polyoxyethylene ether 5.0 parts, polyoxyethylene polyoxypropylene base ether block copolymers 4.0 parts, organobentonite 2.5 parts, methyl oleate 63.0 parts.
Preparation method: each component mixed, through high speed shear homogenize, then by sand mill sand milling 2-3 hour, makes average grain diameter reach 1-5 micron, can obtain the different monooctyl ester of 16% atrazine fluroxypyr and dispersible oil-suspending agent.
Embodiment 17:16% atrazine fluroxypyr suspended emulsion (1:1)
Composition: atrazine 8.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, trimethylbenzene 8.0 parts, polyoxyethylene alkylphenol ether phosphate 5.0 parts, polyoxyethylene polyoxypropylene base ether block copolymers 3.0 parts, ethylene glycol 4.0 parts, xanthans 0.15 part, silicone defoaming agent 0.1 part, Kathon CG 0.5 part, soft water 59.5 parts.
Preparation method: the former medicine of different for fluroxypyr monooctyl ester and emulsifiers dissolve are formed homogeneous oil phase in trimethylbenzene, other each component mixing by it again, through high speed shear homogenize, again by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 16% atrazine fluroxypyr suspended emulsion can be obtained.
Embodiment 18:13% atrazine fluroxypyr suspended emulsion (5:8)
Composition: atrazine 5.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, trimethylbenzene 8.0 parts, polyoxyethylene alkylphenol ether phosphate 4.0 parts, polyoxyethylene polyoxypropylene base ether block copolymers 3.0 parts, ethylene glycol 4.0 parts, xanthans 0.15 part, silicone defoaming agent 0.1 part, Kathon CG 0.5 part, soft water 63.5 parts.
Preparation method: the former medicine of different for fluroxypyr monooctyl ester and emulsifiers dissolve are formed homogeneous oil phase in trimethylbenzene, other each component mixing by it again, through high speed shear homogenize, again by sand mill sand milling 2-3 hour, make average grain diameter reach 1-5 micron, 13% atrazine fluroxypyr suspended emulsion can be obtained.
Embodiment 19:13% atrazine fluroxypyr dispersibles oil-suspending agent (5:8)
Composition: atrazine 5.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, dehydration sorbic alcohol fatty acid ester 6.0 parts, castor oil polyoxyethylene ether 5.0 parts, polyoxyethylene polyoxypropylene base ether block copolymers 4.0 parts, organobentonite 2.5 parts, methyl oleate 66.0 parts.
Preparation method: each component mixed, through high speed shear homogenize, then by sand mill sand milling 2-3 hour, makes average grain diameter reach 1-5 micron, can obtain the different monooctyl ester of 13% atrazine fluroxypyr and dispersible oil-suspending agent
Embodiment 20:17% atrazine fluroxypyr water dispersible granules (5:8)
Composition: atrazine 5.0 parts, the different monooctyl ester of fluroxypyr (acid meter) 8.0 parts, lauryl sodium sulfate 1.0 parts, maleic acrylic copolymer sodium salt 6.0 parts, sec-octyl alcohol alcoxylates 5.0 parts, white carbon 10.0 parts, kaolin 41.5 parts.
Preparation method: each component mixed, first through mechanical crushing, then after air-flow crushing, mixes and carries out wet granulation, oven dry, can obtain 17% atrazine fluroxypyr water dispersible granules.
(2) the pesticidal preparations field control effectiveness test one prepared of previous embodiment
Reagent agent: the complex weedicide in embodiment, comparative example.
Contrast medicament: 288g/L fluroxypyr different monooctyl ester EC, 200g/L atrazine AS.
Prevent and kill off object: eleusine indica, lady's-grass, Amaranthus retroflexus, kitchen garden.
Test method: according to the area of experimental plot, the good each medicament of precise, after being watered dilution, utilizes knapsack sprayer, carries out even spraying.The Fan spray head that sprinkler selection weeding is special, selects fine day to spray calm afternoon.During spraying, liquid is evenly sprayed application in experimental plot, accomplishes not respray, drain spray.
After off-test, after medicine, 5d, 10d, 20d, 30d, 45d observe weeds death condition respectively, and get 1 square meter at random from each community and carry out weeds mortality survey, calculate preventive effect.
Table 2 field control effectiveness test (after medicine 45 days)
The result of the test of table 2 shows, within the scope of ratio of weight and number 160:1-5:8, atrazine and fluroxypyr or its ester composite after, the preventive effect of eleusine indica, lady's-grass, Amaranthus retroflexus, field bindweed is better than to the preventive effect of atrazine, fluroxypyr or its ester single dose process, both are composite obvious synergistic effect.Meanwhile, atrazine and fluroxypyr or its ester composite after the wetting powder successful made be better than composite other formulations made.
The pharmacodynamic results (30 days) of the field trial of table 3 embodiment and comparative example management of weeds
The present invention by atrazine and fluroxypyr or its ester composite after, 30d after medicine, compares its control efficiency to eleusine indica, lady's-grass, Amaranthus retroflexus, field bindweed.Result of the test as shown in table 3 shows, in the scope of ratio of weight and number 160:1 ~ 5:8, particularly in the scope of ratio of weight and number 40:1 ~ 2.5:1, atrazine and fluroxypyr or its ester composite after, control efficiency is better than the control efficiency of the binary built of other triazine herbicide and fluroxypyr or its ester.In the scope of ratio of weight and number 160:1 ~ 5:8, particularly in the scope of weight ratio 40:1 ~ 2.5:1, atrazine and fluroxypyr or its ester composite after, control efficiency is also better than the control efficiency of the ternary built of nicosulfuron, atrazine and fluroxypyr or its ester.
(3) the pesticidal preparations field control effectiveness test two prepared of previous embodiment
Reagent agent: 20 kinds of complex weedicides in embodiment 1 to 20.
For studying thing: corn, Chinese sorghum.
Dispenser period: 3-5 leaf phase
Test method: according to the area of experimental plot, the good each medicament of precise, after being watered dilution, utilizes knapsack sprayer, carries out even spraying.The Fan spray head that sprinkler selection weeding is special, selects fine day to spray calm afternoon.During spraying, liquid is evenly sprayed application in experimental plot, accomplishes not respray, drain spray.After medicine, in 1-25d, observe the growing state of corn, Chinese sorghum, observe whether have poisoning.
Table 4 field control effectiveness test (safety)
| Ratio | Medicament title | Effective dose g/667m 2 | Corn | Chinese sorghum |
| 160:1 | Embodiment 1 | 80.5 | Safety | Safety |
| 80:1 | Embodiment 2 | 81 | Safety | Safety |
| 40:1 | Embodiment 3 | 82 | Safety | Safety |
| 20:1 | Embodiment 4 | 90 | Safety | Safety |
| 10:1 | Embodiment 5 | 66 | Safety | Safety |
| 8:1 | Embodiment 6 | 56.26 | Safety | Safety |
| 5:1 | Embodiment 7 | 36 | Safety | Safety |
| 2.5:1 | Embodiment 8 | 35 | Safety | Safety |
| 1:1 | Embodiment 9 | 20 | Safety | Safety |
| 5:8 | Embodiment 10 | 16.25 | Safety | Safety |
| 160:1 | Embodiment 11 | 80.5 | Safety | Safety |
| 80:1 | Embodiment 12 | 81 | Safety | Safety |
| 40:1 | Embodiment 13 | 82 | Safety | Safety |
| 20:1 | Embodiment 14 | 90 | Safety | Safety |
| 10:1 | Embodiment 15 | 66 | Safety | Safety |
| 1:1 | Embodiment 16 | 20 | Safety | Safety |
| 1:1 | Embodiment 17 | 20 | Safety | Safety |
| 5:8 | Embodiment 18 | 16.25 | Safety | Safety |
| 5:8 | Embodiment 19 | 16.25 | Safety | Safety |
| 5:8 | Embodiment 20 | 16.25 | Safety | Safety |
The result of the test of table 4 shows, after the present invention adopts atrazine and fluroxypyr or its ester composite, to the Crop securify such as corn, Chinese sorghum.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a Herbicidal combinations, is characterized in that, with atrazine and fluroxypyr or its ester for active ingredient, the ratio of weight and number of atrazine and fluroxypyr or its ester is 160:1 ~ 5:8.
2. Herbicidal combinations according to claim 1, is characterized in that, the ratio of weight and number of active ingredient atrazine and fluroxypyr or its ester is 40:1 ~ 2.5:1.
3. Herbicidal combinations according to claim 2, is characterized in that, the ratio of weight and number of active ingredient atrazine and fluroxypyr or its ester is 20:1 ~ 5:1.
4. according to the arbitrary described Herbicidal combinations of claims 1 to 3, it is characterized in that, also containing pesticidal preparations auxiliary element in described Herbicidal combinations, to make the formulation being applicable to agriculturally using.
5. Herbicidal combinations according to claim 4, is characterized in that, the formulation of described Herbicidal combinations is wetting powder.
6. Herbicidal combinations according to claim 5, it is characterized in that, the wetting powder of Herbicidal combinations, the parts by weight of each component are as follows: 5 ~ 80 parts of atrazines, 0.5 ~ 8 part of fluroxypyr, 0.5 ~ 10 portion of first surface activating agent, 1.0 ~ 20 portions of second surface activating agents, 0 ~ 30 part of anti-caking agent, 5 ~ 65 parts of fillers;
Wherein, described first surface activating agent is one or more in lauryl sodium sulfate, neopelex, sodium lignin sulfonate, naphthalene sulphonate or polycarboxylate;
Described second surface activating agent is one or more in Disodium sulfosuccinate, fatty alcohol-polyoxyethylene ether, polyoxyethylene alkylphenol ether, castor oil polyoxyethylene ether or alkyl alcohol alkoxylates;
Described anti-caking agent is one or more in white carbon or aluminium-magnesium silicate;
Described filler is one or more in kaolin, diatomite, talcum powder, anhydrous sodium sulfate or ammonium sulfate.
7. Herbicidal combinations according to claim 6, is characterized in that, described alkyl alcohol alkoxylates be sec-octyl alcohol alcoxylates and or isooctanol alcoxylates.
8. the preparation method of Herbicidal combinations according to claim 6, is characterized in that, comprises the steps:
Step 1: take each component by formulation weight portion rate for subsequent use,
Step 2: each component mixed, carries out mechanical crushing,
Step 3: by the material after mechanical crushing through air-flow crushing to certain fineness, then to mix, obtain product.
9. the application of the arbitrary described Herbicidal combinations of claim 1 to 7, is characterized in that, for the preparation of the pesticidal preparations of controlling weeds.
10. the application of Herbicidal combinations according to claim 9, is characterized in that, for the preparation of the pesticidal preparations of broad leaved weed and/or grassy weed in control of maize, sorghum field.
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Non-Patent Citations (2)
| Title |
|---|
| S. R. WALKER等: "Effect of herbicides on black pigweed and sesbania pea, and yields of five grain sorghum cultivars in central Queensland", 《AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE》 * |
| SEERUTTUN, S.等: "Vine weeds in sugar cane: Fluroxypyr provides cost-effective post-emergence control in Mauritius", 《SUGAR CANE INTERNATIONAL 》 * |
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| WO2021036251A1 (en) * | 2019-08-27 | 2021-03-04 | 青岛清原化合物有限公司 | Herbicidal composition containing r-type pyridyloxy carboxylic acid derivatives and application thereof |
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Application publication date: 20151223 |