CN101574081B - Composite for preventing and killing off weeds in cornfield - Google Patents
Composite for preventing and killing off weeds in cornfield Download PDFInfo
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- CN101574081B CN101574081B CN2009101167190A CN200910116719A CN101574081B CN 101574081 B CN101574081 B CN 101574081B CN 2009101167190 A CN2009101167190 A CN 2009101167190A CN 200910116719 A CN200910116719 A CN 200910116719A CN 101574081 B CN101574081 B CN 101574081B
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Abstract
The invention relates to a composite for preventing and killing off weeds in a cornfield. The composite is prepared from tricornox and 2, 4-D butyl ester. The binary composite can be added with surface active agent, solvent, filling materials and other addition agents to form suspending agent, wettable powder and emulsion. The composite has the outstanding effects of preventing and killing off broad leaved weeds in the cornfield, has no phytotoxicity on hard corn, and is safe to succession crops.
Description
Technical field
The invention belongs to pesticide field, particularly benazolin and 2, the 4-d butyl ester is prevented and kill off wheatland broad leaved weed Herbicidal combinations, and the preparation of the various formulations of said composition and application technology.
Background technology
According to the whole nation weeds reconnaissance information eighties in last century; China's wheat weeds kind has kind more than 200, and the crop smothering area accounts for more than 30% of wheat planting area, and loss accounts for 15% of wheat gross yield; Reach 10,000,000,000 kilograms, wherein harm such as ox chickweed, clearvers, descurainia sophia (l.) webb ex prantl, common vetch are serious.But along with long-term, the large scale application of weed killer herbicide, the farmland weed chemical control exists weeds resistance, population succession and drug injury problem to be on the rise, and has a strong impact on the high yield of wheat and the safety of good harvest and succession crop.At present, there are some drawbacks in medicament commonly used in the wheatland.Like the sulfonylurea herbicide tribenuron-methyl, the bensulfuron-methyl consumption is too high and cross late use meeting succession crop peanut, soybean are caused poisoning.Phenoxy carboxylic acid herbicides 2, the 4-d butyl ester, the mcpa sodium consumption is too high and use and improperly be prone to cause chemical injury of crops to produce drift can to produce poisoning near dicotyledonous crops.The single weed killer herbicide of long-term use is prevented and kill off sensitization weeds quantity decline, and insensitive or malignant weed quantity rises, and causes that weed community changes.In the winter wheat producing region of the single use of weed killer herbicide, serious variation has taken place in wheat weeds group, and the malignant weed that multiple weed killer herbicides such as clearvers, wartwort, grandmother's sodium, shepherd's purse all are difficult to prevent and treat increases year by year.The results of wheat crop output have been had a strong impact on.The present invention makes to the problem of above-mentioned appearance.
Summary of the invention
The objective of the invention is just to provide a kind of synergistic effect significantly, broad weed-killing spectrum, to the novel cornfield herbicidal composition of wheat and succession crop safety.
Benazolin is the dried inhibitor of a kind of hormone biosynthesis, and the blade that can be plant absorbs, and transporting is to other positions of plant.And can in soil, change into free acid and separate into the non-activity material very soon, second stubble crop there is not influence.Benazolin generally is used for rape field weeding, but it is extremely sensitive to shepherd's purse type rape, can not use, and turnip type rape is also had slight poisoning.The applicant finds that through experimental study benazolin is outstanding and to wheat safety to weeds preventive effects such as chickweed, shepherd's purse, grasswort, common vetch, clearvers.Therefore; Comprise 2 with a kind of in the phenoxy carboxylic acid herbicides; The binary wheat field herbicide composition that 4-d butyl ester, mcpa sodium are formed can enlarge and kill the grass spectrum, improves the herbicidal effect to current secondary malignant weed such as ox chickweed, clearvers, common vetch, wartwort, Buddhist seat; Improve safety greatly, take place thereby effectively control crop smothering when stubble crop and second stubble crop.
Wheat field herbicide composition of the present invention takes following scheme to realize:
By passing through benazolin and 2, the 4-d butyl ester is active ingredient and the binary composition that cooperates the filler composition.
Benazolin (benazolin-ethyl) is a kind of selectivity inner sucting conduction type post-emergence herbicide, can in soil, change into free acid and separate into the non-activity material very soon, and second stubble crop is not had influence.Can prevent and kill off annual broadleaf weed such as chickweed in the wheatland, Stellaria alsine Grim., shepherd's purse, grasswort, common vetch, clearvers, field shepherd's purse, Matricaria, Amaranthus, Siberian cocklebur, Veronica etc., to the wheat crop high safety.The benazolin chemical name: 4-chloro-2-oxo-3 (2H) benzothiazole ethyl ester, structural formula is:
2,4-d butyl ester (2,4-D butylate) belongs to benzene oxygen carboxylic ester herbicide, hormone-type selective herbicide.Has stronger interior suction conductivity.Cauline leaf is handled after being mainly used in seedling, passes cuticula and cell membrane, is transmitted to each several part at last.In the synthetic generation Different Effects of different parts to nucleic acid and protein, suppress the synthetic of metabolism of nucleic acid and protein on the plant top, growing point is stopped growing, not tensible of young leaflet tablet; Suppress photosynthetic and normally carry out, be transmitted to the medicament of plant bottom, make the nucleic acid of plant stem tissue and the synthetic increase of protein; Promote abnormal cell division, the tip of a root expands, the forfeiture absorbing capacity; Cause the distortion of stem stalk, deformity, screen casing stops up, and phloem destroys; The organic matter transportation is obstructed, thereby destroys the normal viability of plant, finally causes plant dead.Can effectively prevent and kill off the multiple broad leaved weed of wheatland, like descurainia sophia (l.) webb ex prantl, shepherd's purse, wartwort, Buddhist seat, lamb's-quarters, knotweed, Amaranthus retroflexus, meadow pine, Siberian cocklebur etc.2,4-d butyl ester chemical name: 2,4 dichloro benzene ethoxyacetic acid n-butyl, chemical structural formula:
Active component benazolin and 2 in the present composition; Separately amount of application and both portfolio ratios and synergy degree when the consumption of 4-d butyl ester depends on independent use; Active component benazolin and 2; The percentage by weight of 4-d butyl ester is 1: 0.1-50, two active best proportionings are 1: 0.5-10.
The Herbicidal combinations of control of weed in wheat field of the present invention can add other components, is made into EC, wetting powder, suspending agent.
It is different and different that described other components are looked formulation, mainly be solvent, cosolvent, emulsifier, synergist.Add antifreeze, thickener, stabilizing agent, disintegrant, antifoaming agent, preservative, binding agent in case of necessity.
Described surfactant is an APES; AEO; The phenethyl phenol polyethenoxy ether; Phenethyl phenol polyethenoxy polyethenoxy ether; The castor oil ethylene oxide adduct; The APES formaldehyde condensation products; The APES phosphate; Phenethyl phenol polyethenoxy ether phosphate; The benzylphenol APEO; Polyoxyethylene carboxylate; Calcium dodecyl benzene sulfonate; Neopelex; Lignosulfonates; NNO; NO; MF; ZS-1; Lauryl sodium sulfate; Draw back powder; N-methyl fatty acyl group sodium taurocholate; APES formaldehyde condensation products sulphate; The withered powder of tea; Saponin; Lignosulfite; Aliphatic alcohol sulfate; Penetrant t; Bleeding agent OT; JFC; Fatty acid amide-N methyl taurine sodium salt; Sodium sulfate of polyethenoxy ether of fatty alcohol; Draw back powder.
Described solvent, cosolvent are toluene, xylol, chlorobenzene, solvent naphtha, alpha-methyl-naphthalene, turpentine oil, carrene, chloroform, methyl alcohol, ethanol, glycerine, ethylene glycol, butanols, isoamyl alcohol, propane diols, cyclohexanone, isophorone, acetophenone, ethyl acetate, propyl acetate, butyl acetate, DMF, DMSO, cellosolve; Can use separately, also can compound use more than two kinds.
Said thickener is Magnesiumaluminumsilicate, CMC, xanthans, gum Arabic, polyvinyl alcohol, bentonite, carboxyethyl cellulose, PAA, silicic acid.
Said antifreeze is ethylene glycol, propane diols, glycerine, urea, monoethylin diglycol, diglycol, polyethylene glycol, isopropyl alcohol.
Said stabilizing agent is BHT, triphenyl phosphite, epoxychloropropane, tributyl phosphate, triethanolamine, diethanol amine.
Described antifoaming agent is bubble enemy, silicone, C8-10 fatty alcohol, C10-20 saturated fatty acid, acid amides.
Described binding agent is starch, dextrin, gum Arabic, soybean protein, gelatine, sodium sulphate, gypsum, polyvinyl alcohol, polyethylene glycol, rosin, paraffin wax, cmc, sodium silicate.
More than various auxiliary agents or carrier all can on market, buy.
Herbicidal combinations of the present invention can be made various formulations according to the purposes needs: missible oil, suspending agent, wetting powder.
(1) suspending agent:
Press formula rate, after pesticide activity component, surfactant, antifoaming agent, thickener or the filler of capacity and part water are mixed, through high speed shear, the wet method sand milling, semi-finished product, add water after the analysis and mix to filter and get product.
Capital equipment is: batching still, colloid mill or even matter mixer, sand mill.
(2) missible oil:
Press formula rate, pesticide activity component, solvent, the cosolvent of capacity joined certain temperature dissolving in agitated reactor after, add after surfactant mixes, reach appearance and analyze, qualified back packing.
Capital equipment is: agitated reactor, temperature controller
(3) wetting powder:
Pesticide activity component, auxiliary agent, filler are mixed the mixed again wetting powder that gets behind comminution by gas stream in proportion.
Capital equipment: mixer, airslide disintegrating mill
Wheat field herbicide composition of the present invention has addition or synergistic effect, sprays after being mainly used in the wheatland seedling, prevents and kill off multiple grass family of wheatland and broad leaved weed.Weeds such as amur foxtail, wild oat, hard grass, chickweed, descurainia sophia (l.) webb ex prantl, shepherd's purse, clearvers, Veronica, common vetch there is good control efficiency.Can prevent and kill off this product of standing grain and broad leaved weed simultaneously in wheat seedling phase or the dispenser of wheat period of seedling establishment, control wheat whole growing is endangered by weeds.Have activity of weeding height, broad weed-killing spectrum, the convenient characteristics of using, Herbicidal combinations of the present invention; In environment, be easy to degraded; Overcome long residual effect weed killer herbicide and used shortcoming,, belonged to environmentally friendly weed killer herbicide succession crop safety after the stubble wheat to the succession crop poor stability.
Embodiment
Specific embodiment with several kinds of different dosage forms further specifies the present invention below.But the present invention only limits to these examples absolutely not.Percentage is parts by weight in all prescriptions.
The form formula example:
Example 1 (wetting powder)
Benazolin 5%
2,4-d butyl ester 20%
White carbon 20%
Lignosulfonates 8%
Lauryl sodium sulfate 0.6%
Bentonite 10%
Attapulgite complements to 100%
Example 2 (missible oil)
Benazolin 4%
2,4-d butyl ester 40%
DMF 10％
Phenethyl phenol polyethenoxy polyethenoxy ether 5%
Calcium dodecyl benzene sulfonate 3%
Xylol complements to 100%
Example 3 (suspending agents)
Benazolin 10%
2,4-d butyl ester 5%
Methyl naphthalene sulfonic acid sodium formaldehyde 3%
YUS-SC3 3％
Xanthans 0.2%
Magnesiumaluminumsilicate 1%
Ethylene glycol 5%
Sodium Benzoate 0.5%
Water complements to 100%
Indoor biological activity determination:
Below through benazolin and 2,4-d butyl ester two composition weed killer herbicides are to the indoor biologically active of wheat paddock weeds
Measure the reasonability of verifying prescription.
Activity of weeding after with the Gowing method composition being used with is tested, and the calculation of effect that is mixed formula is: E
0=X+Y-XY/100, in the formula, X representes that consumption is the weeds preventive effect of weed killer herbicide A during for P; The weeds preventive effect of weed killer herbicide B when Y representes that consumption is Q; E
0The theoretical preventive effect of weed killer herbicide (A+B) when expression weed killer herbicide consumption is (P+Q).Press the Gowing method, work as E-E
0, explain that mixture herbicide produces synergistic effect at＞10% o'clock; Work as E-E
0＜-10%, explain that mixture herbicide produces antagonism; Work as E-E
0Value explains that between ± 10% o'clock mixture herbicide produces summation action, and E representes the actual measurement preventive effect % that each is handled in the formula, sees table 1.
Table 1: benazolin and 2,4-d butyl ester various dose is used proportioning synergy effect with
Indoor each combined treatment result can find out through table 1, in above-mentioned each compositional range, unites and all shows as summation action.Benazolin and 2, the best proportioning of 4-d butyl ester is 90-150: 75-900, promptly 1: 0.5-10.
Drug effect embodiment:
Press down winter wheat field on the sunny side in Anhui Province and county and carry out field control effectiveness test work with Herbicidal combinations of the present invention, the test basic condition is following:
Experimental field first crop crop is a paddy rice, and soil property is fertile.Wheat was sowed on October 15th, 2008, and after planting wheat was emerged in 7 days, 12 kilograms of mu seeding quantitys, line-spacing 13cm.The 3-5 of wheat place leaf phase during test, and the vigorous equilibrium of growing, weeds place's 2-3 leaf phase, the spray medicine, medical instruments are workers and peasants-16 type Manual pressure sprayer.Mu is to 20 kilograms in water, and the fresh weight preventive effect is respectively handled in investigation in 30 days behind medicine, calculates each embodiment sample to weed control efficacy by following formula, the total preventive effect of statistics fresh weight.
Fresh weight preventive effect=(blank district weeds fresh weight-applying area weeds fresh weight)/blank district weeds fresh weight wherein weeds fresh weight refers to weed growth after the regular period, and its acrial part of clip takes by weighing resulting weight.
7 processing are established in this test, 4 repetitions of every processing, 30 square metres of every sub-district areas.The main weeds kind has: amur foxtail, descurainia sophia (l.) webb ex prantl, chickweed, clearvers, shepherd's purse, common vetch.Can find out from result of the test: (benazolin+2 of 25% the application; The 4-d butyl ester) WP, 52% (benazolin+2; The 4-d butyl ester) EC, 50% (benazolin+chlortoluron) SC all reaches more than 80% to the average preventive effect of descurainia sophia (l.) webb ex prantl, chickweed, clearvers, shepherd's purse and common vetch; The application's benazolin and 2 are described, the Herbicidal combinations of 4-d butyl ester has excellent preventive effect to the annual main broad leaved weed of wheat paddock.(test data sees the following form 3)
Respectively handled the total preventive effect of fresh weight behind table 3, the present composition medicine in 50 days
(annotate: upward each weeds fresh weight preventive effect is and respectively repeats mean in the table)
Claims (4)
1. a composite for preventing and killing off weeds in cornfield is characterized in that two active ingredients are benazolin and 2, and 4-d butyl ester, both percentage by weights are 1: 0.5-10.
2. composite for preventing and killing off weeds in cornfield according to claim 1 is characterized in that active ingredient benazolin and 2, and the weight of 4-d butyl ester accounts for the 15-90% of gross weight.
3. composite for preventing and killing off weeds in cornfield according to claim 1 and 2 is characterized in that surplus is auxiliary agent or filler.
4. composite for preventing and killing off weeds in cornfield according to claim 1 and 2 is characterized in that being made into wetting powder, missible oil, suspending agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101167190A CN101574081B (en) | 2009-05-06 | 2009-05-06 | Composite for preventing and killing off weeds in cornfield |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101167190A CN101574081B (en) | 2009-05-06 | 2009-05-06 | Composite for preventing and killing off weeds in cornfield |
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| Publication Number | Publication Date |
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| CN101574081A CN101574081A (en) | 2009-11-11 |
| CN101574081B true CN101574081B (en) | 2012-07-04 |
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| CN2009101167190A Active CN101574081B (en) | 2009-05-06 | 2009-05-06 | Composite for preventing and killing off weeds in cornfield |
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Families Citing this family (1)
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| CN102715157B (en) * | 2012-07-09 | 2014-02-12 | 山东潍坊润丰化工股份有限公司 | Weeding composition containing MCPA and dicamba as well as preparation method and application of same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188938A (en) * | 2005-06-04 | 2008-05-28 | 拜尔作物科学股份公司 | Herbicides |
| WO2008093840A1 (en) * | 2007-02-02 | 2008-08-07 | Ishihara Sangyo Kaisha, Ltd. | Herbicidal compositions containing benzoylpyrazole compounds |
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2009
- 2009-05-06 CN CN2009101167190A patent/CN101574081B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188938A (en) * | 2005-06-04 | 2008-05-28 | 拜尔作物科学股份公司 | Herbicides |
| WO2008093840A1 (en) * | 2007-02-02 | 2008-08-07 | Ishihara Sangyo Kaisha, Ltd. | Herbicidal compositions containing benzoylpyrazole compounds |
Non-Patent Citations (1)
| Title |
|---|
| 唐韵.除草剂的结构类型与靶标类型.《农药市场信息》.2005,(第17期),15-17，36. * |
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Owner name: ANHUI HUAXING CHEMICAL INDUSTRY CO., LTD. Free format text: FORMER OWNER: ANHUI HUAXING CHEMICAL CO., LTD. Effective date: 20150727 |
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Effective date of registration: 20150727 Address after: 238200 Wujiang Town, Ma'anshan City, Anhui Province Patentee after: ANHUI HUAXING CHEMICAL CO., LTD. Address before: 238200, Anhui county and Wujiang Town, Anhui Huaxing Chemical Limited by Share Ltd Patentee before: Anhui Huaxing Chemical Co., Ltd. |