CN102599162A - Composite herbicide - Google Patents
Composite herbicide Download PDFInfo
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- CN102599162A CN102599162A CN2011104287717A CN201110428771A CN102599162A CN 102599162 A CN102599162 A CN 102599162A CN 2011104287717 A CN2011104287717 A CN 2011104287717A CN 201110428771 A CN201110428771 A CN 201110428771A CN 102599162 A CN102599162 A CN 102599162A
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- pendimethalin
- compound herbicide
- agent
- diflufenican
- herbicide
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Abstract
The invention belongs to the field of agricultural herbicide, and in particular relates to a composite herbicide. The composite herbicide contains diflufenican and pendimethalin which serve as active ingredients and have a weight ratio of (10:1)-(1:20). The composite herbicide has the advantages that: 1, the synergistic effect is obvious, and the pesticide effect is greatly improved; 2, the pesticide effect is improved, the field consumption of the active ingredients is reduced, the production and use costs are reduced, and pesticide residue and environmental pollution are reduced; and 3, the composite herbicide consists of the active ingredients with different action mechanisms, the action sites are increased, pesticide resistance of weeds are overcome and delayed, and the composite herbicide is an important means for comprehensively preventing and controlling field weeds.
Description
Technical field
The invention belongs to the agricultural herbicide field, particularly a kind of compound herbicide.
Background technology
Diflufenican belongs to the carotenoid biosynthesis inhibitor, is the selectivity cornfield herbicidal of wide spectrum, causes chlorophyll to destroy and cell rupture, and plant is dead.To impose on autumn sowing wheat and barley field before 125～250g/ha (active ingredient) bud or behind the bud, prevent and kill off grass family and broad leaved weed, especially clearvers, Veronica and violet weeds.This medicament has following characteristics: broad weed-killing spectrum; But keeping from ill weeds; The drug effect phase is long in the soil; Efficacy stability; Can be mixed with other weed killer herbicides.Behind the pharmacy application, at the medicine soil layer of the anti-leaching of soil table formation one deck, and active in the maintenance of crop whole growth phase, when weed germination passed through the medicine soil layer, contact is the absorption medicament also, and the weeds root system also can absorb as if touching the medicine soil layer.Can the medicament effect be brought into play and depend on that can medicament cover the face of land equably.At the soil table or after the very near weed seed of soil table germinates, absorb medicament through young shoot and two approach of root system.When medicament upwards transmits, make young shoot decolouring or albefaction, last whole plant is wilted dead.The biosynthesis of medicament severe inhibition carotenoid and make plant produce the decolouring phenomenon, and destroy photosynthesis indirectly.Operating speed is directly relevant with light intensity.The photosynthesis of old plant tissue meeting Yin Xinye is suppressed and final influenced death.Can before the weeds bud or behind the bud, use.On the contrary, to some genus sections of Umbelliferae (carrot) and composite family, nearly unavailable.In a word, can prevent and kill off most annual broadleaf weeds, also effective to the grass family nutgrass flatsedge.As using with, can enlarge and kill the grass spectrum with other suitable gramineous herbicides.
Pendimethalin is that upland field soil is handled weed killer herbicide before the selectivity bud, behind the bud.Weeds absorb medicament through the young shoot of sprouting, and the medicament that gets in the plant corpus combines with tubulin, suppress the mitosis of plant cell, thereby cause weeds dead.Be widely used in various crop field weedings such as corn, soybean, peanut, cotton, direct-seeding dry rice, potato, tobacco, vegetables, prevent and kill off annual gramineous weed, part broad leaved weed and nutgrass flatsedge.As: barnyard grass grass, lady's-grass, green foxtail, moleplant seed, eleusine indica, kitchen garden, amaranth, lamb's-quarters, piemarker, black nightshade, cyperus iria, difformed galingale herb etc.Preventive effect to grassy weed is superior to broad leaved weed, to the perennial weed weak effect.
Often there is defective in various degree in the weed killer herbicide kind that contains the single-activity component in agriculture weeds in field control, be easy to generate pesticide resistance like weeds after the continuous administration, and the grass spectrum is narrow extremely, and application times is understood the weighting ring environment pollution more.Go up the weeds that produce resistance for control agricultural, a kind of way is to release the new component that new and existing kind do not have cross resistance.But the development cost of new active ingredient is high, and the construction cycle is long, and does not all catch up with the speed that weeds produce resistance forever.Other way is rotated etc. such as crop allocation adjustment, different agricultural chemicals, in the process of practical operation, is difficult to really play obvious effects.
The different cultivars composition carries out composite, is the modal method of control resistant weed.Heterogeneity is carried out composite, can improve preventive effect, enlarges the consumption that kills the grass spectrum, reduces active ingredient, practices thrift drug cost, reduces environmental pollution, is the important means of integrated control weeds in field.
The warp retrieval is not found Diflufenican at present and pendimethalin is composite and the document of application.
Summary of the invention
The present invention aims to provide that a kind of resistance risk is little, cost is low, good drug efficacy, the lasting period is long, environmental pollution is little compound herbicide, and its active ingredient is Diflufenican and pendimethalin.
Another object of the present invention is with the complex composition that contains Diflufenican and pendimethalin, is equipped with the weed killer herbicide that proper assistant is processed multiple formulation, makes it to field grassy weed, broad leaved weed and nutgrass flatsedge preventive effect preferably arranged all, has enlarged to kill the grass spectrum.
Technical scheme of the present invention is: a kind of compound herbicide, its active ingredient are Diflufenican and pendimethalin.
The weight ratio of said active ingredient Diflufenican and pendimethalin is 10: 1～1: 20, preferred 1: 10～13.
Said active ingredient Diflufenican and the weight percentage of pendimethalin in said compound herbicide are 1%～90%.
Above-mentioned active ingredient Diflufenican and pendimethalin all are weed killer herbicides well known in the art, can buy through various commercial channel.
Except that above-mentioned active ingredient Diflufenican and pendimethalin, also comprise carrier and auxiliary agent in the said compound herbicide, to be mixed with wetting powder, water dispersible granules, missible oil or aqueous suspension agent.
Said carrier is one or more in water, solvent or the filler.
Said solvent is selected from N, dinethylformamide, cyclohexanone, toluene, xylol, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, trimethylcyclohexanone, N-octylpyrrolidone.The mixture of one or more compositions in N-Methyl pyrrolidone, propyl alcohol, butanols, ethylene glycol, diethylene glycol, EGME, butyl ether, ethyl acetate or the acetonitrile.
Said filler is selected from the mixture of one or more compositions in kaolin, diatomite, bentonite, attapulgite, white carbon, starch or the precipitated calcium carbonate.
Said auxiliary agent comprises a kind of surfactant at least.Surfactant can be one or more in emulsifier, dispersant, wetting agent or the bleeding agent, can be nonionic or anionic, also can be two types of compound uses.
Said emulsifier is selected from agricultural newborn 500# (alkyl benzene calcium sulfonate); OP series phosphate (NPE phosphate); 600# phosphate (phenyl phenol polyoxyethylene ether phosphate); Styrene polyoxyethylene ether ammonium sulfate salt; Alkyl biphenyl ether disulfonic acid magnesium salts; Triethanolamine salt; Farming newborn 400# (benzyl dimethyl phenol polyoxy ethyl ether); Nongru-700 # (alkylphenol-formaldehyde resin polyoxy ethyl ether); Peaceful newborn 36# (phenethyl fluosite polyoxy ethyl ether); Farming newborn 1600# (phenethyl phenol polyoxy ethyl polypropylene-base ether); Ethylene oxide-propylene oxide block copolymer; OP series (NPE); BY series (castor oil polyoxyethylene ether); Farming newborn 33# (alkylaryl polyoxyethylene poly-oxygen propylene aether); Sapn series (sorbitol anhydride monostearate); The mixture of one or more compositions in tween series (anhydrous sorbitol resin acid ester APEO) or the AEO series (AEO).
Said dispersant is selected from the mixture of one or more compositions in polycarboxylate, lignosulfonates, APES formaldehyde condensation products sulphate, alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, APES, aliphatic amine polyoxyethylene ether, aliphatic acid polyethenoxy ether or the fatty acid glyceride APEO.
Said wetting agent is selected from the mixture of one or more compositions in lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement or the soapberry powder.
Said bleeding agent is selected from the mixture of one or more compositions in penetrating agent JFC (AEO), penetrant t (maleic acid di-isooctyl sulfonate), azone, the organosilicon.
According to different use occasions and demand, said compound herbicide also can add other functional aids such as antifreezing agent, thickener, stabilizing agent, disintegrant, antifoaming agent.
Said antifreezing agent is selected from the mixture of one or more compositions in ethylene glycol, propane diols, glycerine or the urea.
Said thickener is selected from the mixture of one or more compositions in xanthans, polyvinyl alcohol, bentonite, carboxymethyl cellulose or the aluminium-magnesium silicate.
Said stabilizing agent is selected from epoxidized soybean oil, epoxychloropropane, BHT, ethyl acetate, the mixture of one or more compositions of triphenyl phosphate.
Said disintegrant is selected from the mixture of one or more compositions in bentonite, urea, ammonium sulfate, aluminium chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or the sodium bicarbonate.
Said antifoaming agent is selected from the mixture of one or more compositions in silicone oil, silicone compound, C10～C20 saturated fat acid compounds or C8～C10 aliphatic alcohols compound.
Above-mentioned said material all is to well known to a person skilled in the art material, can buy through market.
Compound herbicide provided by the invention is used to prevent and treat weeds such as wheat paddock, garlic field barnyard grass grass, lady's-grass, green foxtail, moleplant seed, eleusine indica, kitchen garden, amaranth, lamb's-quarters, piemarker, black nightshade, cyperus iria, difformed galingale herb; And can reduce the application dosage of each active ingredient, reduce cost, reduce pollution.
Beneficial effect of the present invention is: 1, synergistic effect is obvious, and drug effect significantly improves; 2, drug effect improves, and the field consumption of active ingredient descends, and has reduced production and use cost, reduces residue of pesticide and environmental pollution; 3, compound herbicide is made up of the active ingredient of different effects mechanism, and the action site increase helps overcoming and delays the drug-fast generation of weeds, is the important means of integrated control weeds in field.
Embodiment
Specify the present invention below in conjunction with embodiment.Percentage all is weight percentage among the embodiment, and the treatment dosage of field efficacy is effective ingredient consumption.
1, wetting powder
Preparation method: in the Example formulations ratio, active ingredient Diflufenican and pendimethalin are added in the carrier, and add surfactant and other functional aids therein, mix, the mixed again wetting powder that gets behind comminution by gas stream.Capital equipment has mixer, airslide disintegrating mill.
Embodiment 1: (55% Diflufenican pendimethalin wetting powder)
Prescription: Diflufenican, 5%; Pendimethalin 50%; The wetting agent lauryl sodium sulfate, 2%; The dispersant calcium lignosulfonate, 8%; The filler white carbon, 18%, filler kaolin, surplus.
2, water dispersible granules
Preparation method: in the Example formulations ratio; Active ingredient Diflufenican and pendimethalin are added in the carrier; And add surfactant and other functional aids therein; Mix, behind comminution by gas stream, add 10～25% water, make the water dispersible granules product through kneading, granulation, drying, screening then; The powder that maybe will pulverize is water spray, granulation, drying in the fluidized granulating machine, and screening afterwards makes product.Capital equipment has mixer, airslide disintegrating mill, kneader, Squeezinggranulator, drying room or fluid-bed drying, or fluidized granulating machine, screening machine.
Embodiment 2: (70% Diflufenican pendimethalin water dispersible granules)
Prescription: Diflufenican, 5%; Pendimethalin, 65%; Wetting agent dodecylbenzene sodium sulfonate, 3%; Dispersant alkylnaphthalene sulfonate formaldehyde condensation products, 8%; The filler attapulgite, surplus.
3, aqueous suspension agent
The preparation method: press formula rate, active ingredient Diflufenican and pendimethalin, surfactant and other functional aids are placed agitated reactor successively, add water and mix, through high speed shear, the wet method sand milling, even at last matter is filtered and is promptly got product.Capital equipment is batching still, colloid mill or even matter mixer, sand mill.
Embodiment 3: (40% Diflufenican pendimethalin aqueous suspension agent)
Prescription: Diflufenican, 30%; Pendimethalin, 10%; The newborn OP-10 of emulsifier farming, 1%; Dispersant polycarboxylate, 5%; Thickener is selected xanthans and aluminium-magnesium silicate for use, and consumption is respectively 0.1% and 2%; The antifreezing agent propane diols, 5%; The antifoaming agent silicone compound, 0.5%; Water, surplus.
4, missible oil
Preparation method: in the Example formulations ratio active ingredient Diflufenican and pendimethalin are added in the carrier, and add surfactant and other functional aids therein, in mixing still, mix and get final product.Mix still and can select enamel reaction still, stainless steel stirred tank etc. for use.
Embodiment 4: (20% Diflufenican pendimethalin missible oil)
Prescription: Diflufenican, 5%; Pendimethalin, 15%; Emulsifier is selected agricultural newborn 500# and agricultural newborn 600# for use, and consumption is respectively 4% and 5%; Solvent is selected N for use, dinethylformamide, 10%, xylol, surplus.
Compound herbicide and the Comparative Examples of using embodiment 1, embodiment 2 to make are below carried out field control effectiveness test to the garlic field weed, and so that beneficial effect of the present invention to be described better, result of the test is as shown in table 1 below.In the table 1, embodiment 1:55% Diflufenican pendimethalin wetting powder; Embodiment 2:70% Diflufenican pendimethalin water dispersible granules; Comparative Examples 1:50% Diflufenican wetting powder; Comparative Examples 2:33% pendimethalin missible oil.
Establish embodiment medicament, Comparative Examples medicament and do not use totally 9 processing of any medicament in this field test, each handles repetition 4 times, handles the sub-district for totally 36, after planting carries out the soil spraying in garlic.Every processing sub-district is got 3 points, every some 0.33m at random
2, the healthy strain number of 20 days, 40 days investigation each point various weeds after medication respectively, behind the medicine 40 days in investigation weeds strain number, investigation fresh weight preventive effect.The result sees table 1, table 2 and table 3.
Table 1 embodiment 1, embodiment 2 and Comparative Examples are prevented and kill off garlic field weed strain preventive effect (%) (behind the medicine 20 days)
Table 2 embodiment 1, embodiment 2 and Comparative Examples are prevented and kill off garlic field weed strain preventive effect (%) (behind the medicine 40 days)
Table 3 embodiment 1, embodiment 2 and Comparative Examples are prevented and kill off garlic field weed fresh weight preventive effect (%) (behind the medicine 40 days)
Can find out from the result of the test of table 1, table 2 and table 3; Behind the medicine 20 days with medicine after 40 days; Embodiment 2 and embodiment 3 use more than active ingredient 500 grams in per hectare; Strain preventive effect and fresh weight preventive effect to lady's-grass, eleusine indica, Amaranthus retroflexus and kitchen garden all are significantly higher than the effect that Comparative Examples 1 per hectare uses active ingredient 200 grams and Comparative Examples 2 per hectares to use active ingredient 700 to restrain; Show through pyrrole flutolanil and pendimethalin composite after, overcome the pyrrole flutolanil to grassy weed difference and pendimethalin to the shortcoming of broad leaved weed difference, have significant synergies.Duration of test is observed, and garlic does not have symptom of chemical damage, and test medicine is to garlic safety.
Claims (8)
1. a compound herbicide is characterized in that, its active ingredient is Diflufenican and pendimethalin.
2. compound herbicide according to claim 1 is characterized in that, the weight ratio of said active ingredient Diflufenican and pendimethalin is 10: 1～1: 20.
3. compound herbicide according to claim 2 is characterized in that, said active ingredient Diflufenican and the weight percentage of pendimethalin in said compound herbicide are 1%～90%.
4. compound herbicide according to claim 3 is characterized in that, also comprises carrier and auxiliary agent in the said compound herbicide.
5. compound herbicide according to claim 4 is characterized in that said carrier is selected from one or more in water, solvent or the filler.
6. compound herbicide according to claim 4 is characterized in that said auxiliary agent comprises surfactant, and said surfactant is selected from one or more in emulsifier, dispersant, wetting agent or the bleeding agent.
7. compound herbicide according to claim 6 is characterized in that said auxiliary agent also comprises other functional aids, and said other functional aids are selected from antifreezing agent, thickener, stabilizing agent, disintegrant or the antifoaming agent one or more.
8. according to the described compound herbicide of each claim in the claim 1～7, it is characterized in that the formulation of said compound herbicide is missible oil, wetting powder, aqueous suspension agent or water dispersible granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104287717A CN102599162A (en) | 2011-12-20 | 2011-12-20 | Composite herbicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104287717A CN102599162A (en) | 2011-12-20 | 2011-12-20 | Composite herbicide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102599162A true CN102599162A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104287717A Pending CN102599162A (en) | 2011-12-20 | 2011-12-20 | Composite herbicide |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893993A (en) * | 2012-10-29 | 2013-01-30 | 南通嘉禾化工有限公司 | Weeding suspending agent and preparation method thereof |
| WO2014095623A1 (en) * | 2012-12-18 | 2014-06-26 | Bayer Cropscience Ag | Herbicidal agents containing aclonifen |
| CN109006826A (en) * | 2018-08-07 | 2018-12-18 | 安徽丰乐农化有限责任公司 | A kind of direct-sowing dry paddy field broadcasts the complex weedicide containing diflufenican before rear seedling |
| CN109819987A (en) * | 2019-03-21 | 2019-05-31 | 河南瀚斯作物保护有限公司 | A kind of Herbicidal combinations containing diflufenican, pendimethalin and Oxyfluorfen |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4875925A (en) * | 1986-07-21 | 1989-10-24 | May & Baker Limited | Herbicidal method using diflufenican |
-
2011
- 2011-12-20 CN CN2011104287717A patent/CN102599162A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4875925A (en) * | 1986-07-21 | 1989-10-24 | May & Baker Limited | Herbicidal method using diflufenican |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893993A (en) * | 2012-10-29 | 2013-01-30 | 南通嘉禾化工有限公司 | Weeding suspending agent and preparation method thereof |
| WO2014095623A1 (en) * | 2012-12-18 | 2014-06-26 | Bayer Cropscience Ag | Herbicidal agents containing aclonifen |
| CN104869822A (en) * | 2012-12-18 | 2015-08-26 | 拜尔农作物科学股份公司 | Herbicidal agents containing aclonifen |
| US9700046B2 (en) | 2012-12-18 | 2017-07-11 | Bayer Cropscience Ag | Herbicidal agents containing aclonifen |
| CN109006826A (en) * | 2018-08-07 | 2018-12-18 | 安徽丰乐农化有限责任公司 | A kind of direct-sowing dry paddy field broadcasts the complex weedicide containing diflufenican before rear seedling |
| CN109819987A (en) * | 2019-03-21 | 2019-05-31 | 河南瀚斯作物保护有限公司 | A kind of Herbicidal combinations containing diflufenican, pendimethalin and Oxyfluorfen |
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Application publication date: 20120725 |