CN101720763B - Vegetable field herbicide composition and preparation method and use of water emulsion thereof - Google Patents
Vegetable field herbicide composition and preparation method and use of water emulsion thereof Download PDFInfo
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- CN101720763B CN101720763B CN200910213975.1A CN200910213975A CN101720763B CN 101720763 B CN101720763 B CN 101720763B CN 200910213975 A CN200910213975 A CN 200910213975A CN 101720763 B CN101720763 B CN 101720763B
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Abstract
The invention discloses a vegetable field herbicide composition and a preparation method and use of a water emulsion thereof. The water emulsion consists of the following components based on weight measurement ratio: 20 to 30g/mL of butachlor, 8 to 12g/mL of pendimethalin, 3 to 6g/mL of solvent, 3 to 5g/mL of emulsifier, 6 to 7g/mL of dispersing agent, 0.1 to 0.5g/mL of defoaming agent, and the balance of water. The water emulsion is prepared by the following steps: firstly dissolving the butachlor and the pendimethalin into a solvent; then adding the emulsifier and the dispersing agent and mixing into a uniform and transparent oil phase; mixing the water and the defoaming agent to form a uniform water phase; and shearing the oil phase in a high-shear dispersing mixer, simultaneously adding the water phase into the oil phase, and mixing uniformly to obtain the water emulsion of the vegetable field herbicide composition. The water emulsion of the vegetable field herbicide composition has the advantages of advanced and environment-friendly formulation, scientific and rigorous formula, functions of synergism and insecticidal spectrum extension, specialty in controlling weeds in Cruciferae vegetable fields, low harm to human body, livestock and plants, and safety for environment.
Description
Technical field
The invention belongs to chemical protection of plant and formulations of pesticide manufacture field, particularly a kind of containing butachlor (Butachlor) and the vegetable field herbicide compound of Pendimethalin (Pendimethalin) and the preparation method of novel form aqueous emulsion thereof.
Background technology
Chemical weed control with its saving of labor, save time, the plurality of advantages such as weeding speed is fast, efficiency is high and become indispensable important measures in modern agricultural production.Farmland is field of vegetables particularly, due to fertile soil, and rich water abundance, therefore, weeds harm is very serious, produces at present upper good, the safe weed killer herbicide product of preventive effect that lacks.The weed killer herbicide of single variety is used can not prevent and kill off multiple weeds, exists herbicide to compose narrow shortcoming, and mixe herbicide not only can expand herbicide scope, strengthens drug effect, but also can reduce the usage amount of weed killer herbicide.Butachlor (Butachlor) belongs to acetamide-group herbicides, mainly by Profilin matter synthetic, makes weeds death; Pendimethalin (Pendimethalin) belongs to dinitroaniline herbicide, mainly by suppressing meristematic cell division, makes weeds young shoot and young root growth retardation and death.Experimental study shows: two kinds of weed killer herbicides are used at field of vegetables by a certain amount of mixture, can reach synergy and expand the object that herbicide is composed, and to leaf vegetables safety.At present, China absolutely mostly formulation of Pesticidal products is missible oil, weed killer herbicide is no exception, as the single dose of above-mentioned two kinds of weed killer herbicides, owing to using a large amount of dimethylbenzene, toluene in cream preparation, be solvent, thus inflammable volatile, contaminated environment, harmful to health, the research that therefore uses no or little the pesticides new formulation of hazardous solvent more and more comes into one's own.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, primary and foremost purpose of the present invention is to provide a kind of vegetable field herbicide compound, said composition is that particularly the harm of malignant weed kitchen garden is serious for field of vegetables weeds, by the biologicall test of optimal proportion and the safety test to Cruciferae cabbage heart, (english common name is as butachlor take butachlor for result, chemical name is: N-fourth oxygen methyl-α-chloro-2, ,-6,-diethyl acetanil) and Pendimethalin (english common name is Pendimethalin, chemical name is: N-(1-ethyl propyl)-2, 6-dinitro-3, 4-dimethylaniline) be the complex composition of active ingredient, there is synergy, improve activity of weeding, expand the effect of herbicide spectrum.
A further object of the present invention is to provide a kind of aqueous emulsion novel form of above-mentioned vegetable field herbicide compound, and this formulation can reduce the pollution of agricultural chemicals to environment, improves the safety to production, storing and user.
A further object of the present invention is to provide above-mentioned vegetable field herbicide compound in the purposes of preventing and kill off in Cruciferae field of vegetables weeds.
Object of the present invention is achieved through the following technical solutions: a kind of vegetable field herbicide compound, this vegetable field herbicide compound comprises butachlor and Pendimethalin.
Described vegetable field herbicide compound can be prepared into aqueous emulsion, missible oil or wetting powder.
Described aqueous emulsion is comprised of the following component of volume ratio meter by weight: butachlor 0.2～0.3g/mL, Pendimethalin 0.08～0.12g/mL, solvent 0.03～0.06g/mL, emulsifier 0.03～0.05g/mL, dispersant 0.06～0.07g/mL, defoamer 0.001～0.005g/mL, all the other are water.
Described solvent is benzene; Described emulsifier is phenethyl phenol polyethenoxy ether (non-ionic surface active agent) and sodium alkyl benzene sulfonate (anion surfactant); Described dispersant is polyvinyl alcohol or gum Arabic; Described defoamer is silicone defoaming agent.
The mass ratio of described phenethyl phenol polyethenoxy ether and sodium alkyl benzene sulfonate is 3:2.
The preparation method of above-mentioned vegetable field herbicide compound aqueous emulsion, comprises the following steps: butachlor and Pendimethalin are first dissolved in solvent, then add emulsifier and dispersant, be mixed into the oil phase of homogeneous transparent; Water and defoamer are mixed, form uniform water; In high shear dispersing mixer, shear oil phase, water is joined to oil phase simultaneously, after mixing, obtain vegetable field herbicide compound aqueous emulsion.
The weight ratio of described butachlor and Pendimethalin is 5:2.
Above-mentioned a kind of vegetable field herbicide compound is applied to prevents and kill off Cruciferae field of vegetables weeds.
Use the method for Herbicidal combinations aqueous emulsion control field of vegetables weeds of the present invention: before colza sowing or before after planting emerging, with every mu of active ingredient 42～50g of the present composition, be watered 40 kilograms of soil and show even spraying, the annual single broadleaf weed of Cruciferae field of vegetables is had to obvious preventive effect, weeds were killed before sprouting is unearthed, and to vegetable safety.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
(1) herbicidal effect is higher than single dose: by the efficiency test to butachlor, Pendimethalin single dose and the two mixed composition, measure, scientific formulation of the present invention is tight, the two is used with and has obvious synergistic effect, to the preventive effect of weeds particularly to the preventive effect of malignant weed kitchen garden higher than alone butachlor or Pendimethalin, and by the composite herbicide spectrum of expanding.
(2) toxicity is low: the advanced environmental protection of aqueous emulsion agent of the present invention, and compared with missible oil, without fire hazard, without unpleasant toxic odor, to people, animal and plant low toxicity, environmentally safe.
(3) good to vegetable safety: by the Security test to cabbage heart, show, use present composition recommended dose, i.e. 42～50g.ai/ mu, can effectively prevent and kill off the annual single broadleaf weed of field of vegetables, and to vegetable safety.
(4) drug effect is high: because aqueous emulsion is thinner than the particle of missible oil, auxiliary force is stronger, and penetration and absorptivity are better, thereby improves drug effect, and weeding is more thorough.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
Percent by volume meter by weight, in every 100mL aqueous emulsion, each composition weight is: 1. butachlor 20g, 2. Pendimethalin 8g, 3. benzene 3g, 4. phenethyl phenol polyethenoxy ether 1.8g and sodium alkyl benzene sulfonate 1.2g, 5. polyvinyl alcohol 6g, 6. silicone defoaming agent 0.1g.
By above-mentioned consumption, butachlor and Pendimethalin are dissolved in solvent benzol, then add emulsifier (phenethyl phenol polyethenoxy ether and sodium alkyl benzene sulfonate) and polyethylene of dispersing agent alcohol, be mixed into the oil phase of homogeneous transparent; Water and silicone defoaming agent are mixed, form uniform water; In high shear dispersing mixer, shear oil phase, water slowly added to oil phase and mix simultaneously, obtaining 28%(active ingredient butachlor that good dispersion, emulsion stability are strong and the quality percentage composition of Pendimethalin) vegetable field herbicide compound aqueous emulsion.
Before cabbage heart sowing or before after planting emerging, the vegetable field herbicide compound aqueous emulsion of soil table even spraying above-mentioned 28%, every mu of 150～160mL(of consumption i.e. 2250～2400mL/hm
2), being watered 40 kilograms of even spraying soil table, two weeks " Invest, Then Investigate " treatment regions and blank district field of vegetables, more than 91.7%, be 96.5% to annual broad-leaved leaf control of weeds effect, to cabbage heart safety to annual gramineous weed control efficiency.
Before cabbage heart sowing or before after planting emerging, soil table even spraying 40% butachlor ec single dose, consumption 100～150mL/ mu (i.e. 1500～2250mL/hm
2), being watered 40 kilograms of even spraying soil table, two weeks " Invest, Then Investigate " treatment regions and blank district field of vegetables, be 88.9% to annual gramineous weed control efficiency, is 32.2%, to cabbage heart safety to annual dicotyledonous weeds control efficiency.
Before cabbage heart sowing or before after planting emerging, soil table even spraying 33% pendimethalin missible oil single dose, consumption 100～150mL/ mu (i.e. 1500～2250mL/hm
2), being watered 40 kilograms of even spraying soil table, two weeks " Invest, Then Investigate " treatment regions and blank district field of vegetables, be 88.9% to annual gramineous weed control efficiency, is 32.2%, to cabbage heart safety to annual broadleaf weed control efficiency.
From above-mentioned data, vegetable field herbicide compound aqueous emulsion of the present invention to the preventive effect of weeds higher than using separately butachlor or Pendimethalin.
Embodiment 2
Percent by volume meter by weight, in every 100mL aqueous emulsion, each composition weight is: 1. butachlor 25g, 2. Pendimethalin 10g, 3. benzene 3.5g, 4. phenethyl phenol polyethenoxy ether 2.1g and sodium alkyl benzene sulfonate 1.4g, 5. gum Arabic 6.5g, 6. silicone defoaming agent 0.3g.
By above-mentioned consumption, butachlor and Pendimethalin are dissolved in solvent benzol, then add emulsifier and dispersant gum Arabic, be mixed into the oil phase of homogeneous transparent; Water and silicone defoaming agent are mixed, form uniform water; In high shear dispersing mixer, shear oil phase, water slowly added to oil phase and mix simultaneously, obtaining 35%(active ingredient butachlor that good dispersion, emulsion stability are strong and the quality percentage composition of Pendimethalin) vegetable field herbicide compound aqueous emulsion.
Before cabbage heart sowing or before after planting emerging, the vegetable field herbicide compound aqueous emulsion of soil table even spraying above-mentioned 35%, every mu of 120～130mL of consumption, be watered 40 kilograms of even spraying soil tables, two weeks " Invest, Then Investigate " treatment regions and blank district field of vegetables, to total preventive effect of field of vegetables weeds, be 96.7%, to cabbage heart safety.
Embodiment 3
Percent by volume meter by weight, in every 100mL aqueous emulsion, each composition weight is: 1. butachlor 30g, 2. Pendimethalin 12g, 3. benzene 4g, 4. phenethyl phenol polyethenoxy ether 2.4g and sodium alkyl benzene sulfonate 1.6g, 5. polyvinyl alcohol 7g, 6. silicone defoaming agent 0.5g.
By above-mentioned consumption, butachlor and Pendimethalin are dissolved in solvent benzol, then add emulsifier and polyethylene of dispersing agent alcohol, be mixed into the oil phase of homogeneous transparent; Water and silicone defoaming agent are mixed, form uniform water; In high shear dispersing mixer, shear oil phase, water slowly added to oil phase and mix simultaneously, obtaining 42%(active ingredient butachlor that good dispersion, emulsion stability are strong and the quality percentage composition of Pendimethalin) vegetable field herbicide compound aqueous emulsion.
Before cabbage heart sowing or before after planting emerging, the vegetable field herbicide compound aqueous emulsion of soil table even spraying above-mentioned 42%, every mu of 100～110mL of consumption, be watered 40 kilograms of even spraying soil tables, two weeks " Invest, Then Investigate " treatment regions and blank district field of vegetables, to total preventive effect of field of vegetables weeds, be 95.6%, to cabbage heart safety.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (6)
1. a vegetable field herbicide compound, is characterized in that: described vegetable field herbicide compound comprises butachlor and Pendimethalin;
Described vegetable field herbicide compound is prepared into aqueous emulsion;
Described aqueous emulsion is comprised of the following component of volume ratio meter by weight: butachlor 0.2～0.3g/mL, Pendimethalin 0.08～0.12g/mL, solvent 0.03～0.06g/mL, emulsifier 0.03～0.05g/mL, dispersant 0.06～0.07g/mL, defoamer 0.001～0.005g/mL, all the other are water.
2. a kind of vegetable field herbicide compound according to claim 1, is characterized in that: described solvent is benzene; Described emulsifier is phenethyl phenol polyethenoxy ether and sodium alkyl benzene sulfonate; Described dispersant is polyvinyl alcohol or gum Arabic; Described defoamer is silicone defoaming agent.
3. a kind of vegetable field herbicide compound according to claim 2, is characterized in that: the mass ratio of described phenethyl phenol polyethenoxy ether and sodium alkyl benzene sulfonate is 3:2.
4. the preparation method of a kind of vegetable field herbicide compound according to claim 1, is characterized in that comprising the following steps: butachlor and Pendimethalin are first dissolved in solvent, then add emulsifier and dispersant, be mixed into the oil phase of homogeneous transparent; Water and defoamer are mixed, form uniform water; In high shear dispersing mixer, shear oil phase, water is joined to oil phase simultaneously, after mixing, obtain vegetable field herbicide compound aqueous emulsion.
5. preparation method according to claim 4, is characterized in that: the weight ratio of described butachlor and Pendimethalin is 5:2.
6. a kind of vegetable field herbicide compound claimed in claim 1 is applied to and prevents and kill off Cruciferae field of vegetables weeds.
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| CN200910213975.1A CN101720763B (en) | 2009-12-18 | 2009-12-18 | Vegetable field herbicide composition and preparation method and use of water emulsion thereof |
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| CN101720763B true CN101720763B (en) | 2014-04-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047878A (en) * | 2010-12-21 | 2011-05-11 | 威海韩孚生化药业有限公司 | Pendimethalin emulsion in water and preparation method thereof |
| CN102428935A (en) * | 2011-12-14 | 2012-05-02 | 安徽科立华化工有限公司 | Oxadiargyl and butachlor aqueous emulsion and preparation method thereof |
| CN102907424B (en) * | 2012-07-19 | 2015-04-01 | 河南金田地农化有限责任公司 | Micro-capsule suspending agent containing pendimethalin |
| CN104396996A (en) * | 2014-11-30 | 2015-03-11 | 南京华洲药业有限公司 | Mixed weedicide containing flazasulfuron, butachlor and pendimethalin |
| CN111109305A (en) * | 2019-12-31 | 2020-05-08 | 潍坊友容实业有限公司 | Saline-alkali soil herbicide containing citrus extract and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212832A (en) * | 1998-04-21 | 1999-04-07 | 山东农业大学 | Pesticide composition containing pendimethalin |
| CN1218621A (en) * | 1998-04-21 | 1999-06-09 | 国营昆山化工厂 | Herbicide composition |
| CN1325623A (en) * | 2000-05-29 | 2001-12-12 | 山东华阳科技股份有限公司 | Herbicide |
| CN1425288A (en) * | 2001-12-12 | 2003-06-25 | 马韵升 | Prometryn weedicide composition |
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2009
- 2009-12-18 CN CN200910213975.1A patent/CN101720763B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212832A (en) * | 1998-04-21 | 1999-04-07 | 山东农业大学 | Pesticide composition containing pendimethalin |
| CN1218621A (en) * | 1998-04-21 | 1999-06-09 | 国营昆山化工厂 | Herbicide composition |
| CN1325623A (en) * | 2000-05-29 | 2001-12-12 | 山东华阳科技股份有限公司 | Herbicide |
| CN1425288A (en) * | 2001-12-12 | 2003-06-25 | 马韵升 | Prometryn weedicide composition |
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Owner name: GUANGDONG DAFENG PLANT PROTECTION TECHNOLOGY CO., |
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Effective date of registration: 20110518 Address after: 510640 Guangdong city of Guangzhou province Tianhe District gold Yinglu No. 7 Applicant after: Inst. of Plant Protection, Guangdong Prov. Academy of Agricultural Sciences Co-applicant after: Guangdong Dafeng Plant Protection Technology Co., Ltd. Address before: 510640 Guangdong city of Guangzhou province Tianhe District gold Yinglu No. 7 Applicant before: Inst. of Plant Protection, Guangdong Prov. Academy of Agricultural Sciences |
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