CN102630682A - Weeding composition, and preparation method and application thereof - Google Patents
Weeding composition, and preparation method and application thereof Download PDFInfo
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- CN102630682A CN102630682A CN2012101050757A CN201210105075A CN102630682A CN 102630682 A CN102630682 A CN 102630682A CN 2012101050757 A CN2012101050757 A CN 2012101050757A CN 201210105075 A CN201210105075 A CN 201210105075A CN 102630682 A CN102630682 A CN 102630682A
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Abstract
The invention relates to a weeding composition, and a preparation method and application thereof. The weeding composition is capable of reducing the use amount of single-item weedicide and delaying target weed resistance and is wide in phytocidal range. The weeding composition is composed of pretilachlor, oxadiazon and an additive. The preparation method comprises the following steps of: 1, weighing the pretilachlor and the oxadiazon according to the weight ratio of (20-70):(15-50), then putting the pretilachlor and the oxadiazon into a high-shear emulsifying kettle, and putting the additive into the high-shear emulsifying kettle to shear so as to obtain a mixture; and 2, grinding the mixture through a sand mill, and pumping the mixture into a finished product storage tank, so that preparation of the weeding composition is completed. The weeding composition is used for preventing and weeding annular gramineous weeds, broad leaf weeds and Cyperaceae weeds in rice transplanting fields. The weeding composition disclosed by the invention is capable of reducing the use amount of the single-item weedicide and delaying the target weed resistance, is wide in phytocidal range and safe to crops and environment, and is used in the field of chemical weeding.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations and preparation method thereof and application.
Background technology
Chemical weed control is one of the most effective agrotechnique in the modern agriculture, in agricultural production, plays a significant role.Along with the propelling of rural area establishment of cooperatives process, the chemical weed control technology shows its irreplaceable effect day by day.Long-term single a kind of weed killer herbicide of use will make the target weeds that it is produced resistance, will cause this kind weed killer herbicide ineffective to weeds at last.Even escalated dose does not still reach the herbicidal effect of expection.Because escalated dose not only to doing the deposits yields poisoning, has also produced very big influence for ecotope simultaneously.So mixe herbicide will become the following optimal path of effectively preventing and kill off farmland weed scientifically and rationally.Two or more weed killer herbicide rationally is mixed, not only can reduces the consumption of every kind of weed killer herbicide, and produce resistance for delaying the target weeds, improve crop safety, preserving the ecological environment all has crucial meaning.The third careless amine is mainly used in rice terrace and prevents and kill off grassy weed, and is not satisfactory to broad leaved weed and sedge weed preventive effect; And oxadiazon is obvious to broad leaved weed and sedge weed effect, and is relatively poor to the grassy weed preventive effect.
Summary of the invention
The present invention provides a kind of Herbicidal combinations and preparation method thereof and uses, and can reduce single article weed killer herbicide consumption, delays target weeds resistance, broad weed-killing spectrum.
The herbicidal composition of the present invention, the C-metolachlor, oxadiazon components and additives; wherein metolachlor and oxadiazon weight ratio of 20 to 70:15 to 50; metolachlor and oxadiazon total weight the weight ratio of additive 40 to 50:50 to 60; parts by weight of the additive consists of 2 to 3 parts emulsifier, 3-5 parts of dispersing agent, from 0.1 to 0.2 parts of thickening agent, 0.1 to 0.2 parts by stable agent, from 0.5 to 2 parts of antifreeze agent, 0.3 to 0.8 parts by penetrants and 45 to 50 parts of water, of which the emulsifier is a polyoxyethylene alkylphenol ether, THF in any one or two of as a mixture, dispersing agent NNO (sodium methylenebis tea), lignin sulfonate in any one or two of a mixture of xanthan gum thickener, stabilizer, sodium benzoate, antifreeze as glycerine, penetrants organic silicone.
The method of making herbicidal compositions according to the following steps: First, according to Pretilachlor with Oxadiazon weight ratio of 20 to 70:15 to 50 conducted weighed, and then Pretilachlor Oxadiazon inputs and high shear emulsification kettle, and then into the high shear emulsification aids shear autoclave 20 to 60 minutes to obtain a mixture; Second, the mixture was subjected to sand mill 3 to 8 hours, into the product tank, the herbicidal composition is completed production; wherein in step one metolachlor and oxadiazon total weight and the weight ratio of additive 40 to 50:50 to 60; Step one parts by weight of the additive consists of 2 to 3 parts emulsifier, 3-5 parts of dispersing agent, from 0.1 to 0.2 parts of thickening agent, 0.1 to 0.2 parts of stabilizer, 0.5 to 2 parts of antifreeze agent, 0.3 to 0.8 parts by penetrants and 45 to 50 parts of water, of which the emulsifier is an alkyl phenol polyoxyethylene ether, THF in any one or a mixture of two of them, dispersing agent NNO (sodium methylenebis tea), lignin sulfonate in any one or wherein the mixture of the two, xanthan gum thickener, stabilizer, sodium benzoate, antifreeze glycerol, wetting agent is an organic silicone.
The application of above-mentioned Herbicidal combinations is to be used for transplanted rice field and prevents and kill off annual gramineous weed, broad leaved weed and sedge weed.
Oxadiazon in the Herbicidal combinations of the present invention is mainly used in prevents and kill off broad leaved weed, and the third careless amine is mainly used in prevents and kill off grassy weed.After both are mixed, kill the complementation of grass spectrum, can disposablely prevent and kill off grassy weed and broad leaved weed in the paddy field.Herbicidal combinations of the present invention reduces single article weed killer herbicide consumption, delays target weeds resistance, and broad weed-killing spectrum is to crop safety, environmentally safe.
Embodiment
Technical scheme of the present invention is not limited to following cited embodiment, also comprises the combination in any between each embodiment.
Specific Embodiment 1: The herbicidal composition of the embodiment metolachlor, oxadiazon components and additives; wherein metolachlor and oxadiazon weight ratio of 20 to 70:15 to 50; metolachlor and cockle The total weight of the additive-one weight ratio of 40 to 50:50 to 60; parts by weight of the additive consists of 2 to 3 parts of emulsifier, 3 to 5 parts of dispersing agent, from 0.1 to 0.2 parts of a thickener, 0.1 to 0.2 parts of stabilizer, 0.5 to 2 parts of antifreeze agent, 0.3 to 0.8 parts by penetrants and 45 to 50 parts of water, of which the emulsifier is a polyoxyethylene alkylphenol ether, THF in any a mixture of one or two of them, dispersing agent NNO (sodium methylenebis tea), lignin sulfonate in any one or two of a mixture of xanthan gum thickener, stable agent is sodium benzoate, antifreeze glycerol, wetting agent is an organic silicone.
The specific embodiment two: what present embodiment and the specific embodiment one were different is: the weight ratio of the third careless amine and oxadiazon is 30～60: 20～40.Other is identical with embodiment one.
The specific embodiment three: what present embodiment and the specific embodiment one were different is: the weight ratio of the third careless amine and oxadiazon is 50: 30.Other is identical with embodiment one.
Specific embodiments IV: herbicidal compositions of this embodiment of the production method according to the following steps: First, according to metolachlor and oxadiazon weight ratio 20 ~ 70:15 ~ 50 is weighed, and then Pretilachlor Oxadiazon into high shear emulsification kettle, then put in a high shear emulsifying additives kettle cut 20 to 60 minutes to obtain a mixture; Second, the mixture through a sand mill 3 to 8 hours, into the finished product storage tank, to complete the production of the herbicidal composition; wherein in step one metolachlor and oxadiazon total mass and the mass ratio of additive 40 to 50:50 to 60; Step one parts by weight of the additive from the 2-3 parts of emulsifier, 3-5 parts of dispersing agent, from 0.1 to 0.2 parts of thickening agent, 0.1 to 0.2 parts of stabilizer, 0.5 to 2 parts of antifreeze agent, 0.3 to 0.8 parts by penetrants and 45 to 50 parts of water composition , wherein the emulsifier is a polyoxyethylene alkylphenol ether, THF in any one or a mixture of two of them, dispersing agent NNO (sodium methylenebis tea), lignin sulfonic acid sodium in any one or a mixture of two of them, xanthan gum thickener, stabilizer, sodium benzoate, antifreeze glycerol, organic silicone penetrant.
The Herbicidal combinations of this embodiment can be made into formulations such as suspending agent, missible oil, wetting powder, water dispersible granules.
When this embodiment emulsifier was mixture, each component was pressed arbitrarily than mixing; When dispersant was mixture, each component was pressed arbitrarily than mixing.
Embodiment five: what this embodiment and embodiment four were different is: drop in the high-shear emulsifying still in the step 1 and sheared 30～50 minutes.Other is identical with embodiment four.
Embodiment six: what this embodiment and embodiment four were different is: drop in the high-shear emulsifying still in the step 1 and sheared 40 minutes.Other is identical with embodiment four.
Embodiment seven: what this embodiment was different with one of embodiment four to six is: in the step 2 mixture was ground 4～7 hours through sand mill.Other is identical with one of embodiment four to six.
Embodiment eight: what this embodiment was different with one of embodiment four to six is: in the step 2 mixture was ground 5 hours through sand mill.Other is identical with one of embodiment four to six.
The specific embodiment nine: the preparation method of present embodiment Herbicidal combinations; Carry out according to the following steps: one, take by weighing third careless amine and the oxadiazon; Drop into then in the high-shear emulsifying still; Again 2kg APES, 0.5kg lauryl sodium sulfate, 1kg sodium lignin sulfonate, 3kg dispersant NNO, 0.15kg Sodium Benzoate, 0.15kg xanthans, 1kg glycerine, 0.5kg organic silicone and 46.7kg water are dropped in the high-shear emulsifying still and sheared 40 minutes, get mixture; Two, mixture was ground 5 hours through WM type sealed horizontal sand mill, squeeze into the finished product basin, promptly accomplish the making of Herbicidal combinations.
The consumption of present embodiment third careless amine and oxadiazon is as shown in table 1.
The Herbicidal combinations that uses this embodiment to make carries out indoor biological activity determination:
Potted plant barnyard grass grass, bur beggar-ticks in the greenhouse use the Herbicidal combinations of this embodiment to carry out soil spraying processing.30d investigation strain preventive effect adopts the evaluation of Colby method to use the type of action of medicament with." disliking the grass third careless amine synergy determination test report " is as shown in table 1.Actual survival rate representes that with E theoretical survival rate is used E
0E-E is worked as in expression
0＞10% o'clock, explain to produce synergistic effect; Work as E-E
0＜10% o'clock, explain to produce antagonism; Work as E-E
0=10% o'clock, explain to produce addition.
Table 1 third careless amine and oxadiazon are used strain preventive effect and the co-toxicity evaluation of effect that various combination is handled with
Herbicidal compositions of this embodiment through the Northeast Agricultural University to provide "cockle · Determination of the combined effects of Pretilachlor test report" in the test results seen: Oxadiazon mixed with Pretilachlor after barnyardgrass actual control efficiency and theory of differential control efficiency (EE
0 ) are between -10 and 10, belonging to the additive effect on Bidens actual control efficiency differential with the theoretical control efficiency (EE
0 ) were greater than 10, is a synergistic effect.After using with, enlarged and killed the grass spectrum, reduced dosage.
Embodiment ten: the application of this embodiment Herbicidal combinations is to be used for transplanted rice field and prevents and kill off annual gramineous weed, broad leaved weed and sedge weed.
Claims (9)
1 A herbicidal composition, characterized in that the herbicidal composition comprises metolachlor, oxadiazon components and additives; wherein metolachlor and oxadiazon weight ratio of 20 to 70:15 to 50; Pretilachlor with the total weight of oxadiazon and additive weight ratio of 40 to 50:50 to 60; parts by weight of the additive consists of 2 to 3 parts of emulsifier, 3 to 5 parts of dispersing agent, from 0.1 to 0.2 parts by increased thickening agent, from 0.1 to 0.2 parts of stabilizer, 0.5 to 2 parts of antifreeze agent, 0.3 to 0.8 parts by penetrants and 45 to 50 parts of water, of which the emulsifier is a polyoxyethylene alkylphenol ether, THF in any one or a mixture of two of them, dispersing agent NNO, lignin sulfonate in any one or two of a mixture of xanthan gum thickener, stabilizer, sodium benzoate, antifreeze glycerol, penetrating organic silicone.
2. a kind of Herbicidal combinations according to claim 1, the weight ratio that it is characterized in that the third careless amine and oxadiazon is 30～60: 20～40.
3. a kind of Herbicidal combinations according to claim 1, the weight ratio that it is characterized in that the third careless amine and oxadiazon is 50: 30.
The process of claim 1 wherein the production of herbicidal compositions, characterized in that the following steps: First, according to metolachlor and oxadiazon weight ratio 20 ~ 70:15 ~ 50 is weighed, and then metolachlor amines and Oxadiazon into high shear emulsification kettle, then put into a high shear emulsifying additives kettle shear 20 to 60 minutes to obtain a mixture; Second, the mixture through a sand mill 3 to 8 hours, into the product tank, to complete the production of the herbicidal composition; wherein in step one metolachlor and oxadiazon total mass and the mass ratio of additive 40 to 50:50 to 60; Step one parts by weight of the additive 2 to 3 parts by the number of emulsifier, 3 to 5 parts of dispersing agent, from 0.1 to 0.2 parts of thickening agent, 0.1 to 0.2 parts of stabilizer, 0.5 to 2 parts of antifreeze agent, 0.3 to 0.8 parts by penetrants and 45 to 50 parts water composition, wherein the emulsifier is a polyoxyethylene alkylphenol ether, THF in any one or a mixture of two of them, dispersing agent NNO, lignin sulfonate in which any one or mixture of the two, xanthan gum thickener, stabilizer, sodium benzoate, antifreeze glycerol, wetting agent is an organic silicone.
5. the preparation method of Herbicidal combinations according to claim 4 is characterized in that dropping in the high-shear emulsifying still in the step 1 and sheared 30～50 minutes.
6. the preparation method of Herbicidal combinations according to claim 4 is characterized in that dropping in the high-shear emulsifying still in the step 1 and sheared 40 minutes.
7. according to the preparation method of claim 4 or 5 described Herbicidal combinations, it is characterized in that in the step 2 mixture being ground 4～7 hours through sand mill.
8. the preparation method of Herbicidal combinations according to claim 7 is characterized in that in the step 2 mixture being ground 5 hours through sand mill.
9. the application of the said Herbicidal combinations of claim 1 is characterized in that Herbicidal combinations is used for transplanted rice field and prevents and kill off annual gramineous weed, broad leaved weed and sedge weed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101050757A CN102630682A (en) | 2012-04-11 | 2012-04-11 | Weeding composition, and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101050757A CN102630682A (en) | 2012-04-11 | 2012-04-11 | Weeding composition, and preparation method and application thereof |
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| CN102630682A true CN102630682A (en) | 2012-08-15 |
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| CN2012101050757A Pending CN102630682A (en) | 2012-04-11 | 2012-04-11 | Weeding composition, and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104336026A (en) * | 2014-09-25 | 2015-02-11 | 句容市农业技术推广中心 | Method for preventing and controlling weeds in transplanted rice field |
| CN110235895A (en) * | 2019-07-05 | 2019-09-17 | 南京农业大学 | A kind of pretilachlor and oxadiazon administer resistance barnyard grass composition and its application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009082939A1 (en) * | 2007-12-19 | 2009-07-09 | Rotam Agrochem International Co., Ltd | Agrochemical composition and method for preparing the same |
| CN101485318A (en) * | 2009-02-19 | 2009-07-22 | 山东省农业科学院植物保护研究所 | Compounding herbicide containing oxadiazon and propisochlor |
| CN102217608A (en) * | 2011-07-18 | 2011-10-19 | 广西田园生化股份有限公司 | Paddy field herbicide synergistic composition |
-
2012
- 2012-04-11 CN CN2012101050757A patent/CN102630682A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009082939A1 (en) * | 2007-12-19 | 2009-07-09 | Rotam Agrochem International Co., Ltd | Agrochemical composition and method for preparing the same |
| CN101485318A (en) * | 2009-02-19 | 2009-07-22 | 山东省农业科学院植物保护研究所 | Compounding herbicide containing oxadiazon and propisochlor |
| CN102217608A (en) * | 2011-07-18 | 2011-10-19 | 广西田园生化股份有限公司 | Paddy field herbicide synergistic composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104336026A (en) * | 2014-09-25 | 2015-02-11 | 句容市农业技术推广中心 | Method for preventing and controlling weeds in transplanted rice field |
| CN110235895A (en) * | 2019-07-05 | 2019-09-17 | 南京农业大学 | A kind of pretilachlor and oxadiazon administer resistance barnyard grass composition and its application |
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Application publication date: 20120815 |