CN101601408B - Enhanced weed-killing composition - Google Patents
Enhanced weed-killing composition Download PDFInfo
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- CN101601408B CN101601408B CN2009101817767A CN200910181776A CN101601408B CN 101601408 B CN101601408 B CN 101601408B CN 2009101817767 A CN2009101817767 A CN 2009101817767A CN 200910181776 A CN200910181776 A CN 200910181776A CN 101601408 B CN101601408 B CN 101601408B
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Abstract
The invention provides an enhanced weed-killing composition, which comprises two active ingredients: an active ingredient a and an active ingredient b. The active ingredient a is glyphosate or a salt compound of the glyphosate and the active ingredient b is a compound having a structure which is represented by a formula (1), wherein R is H, Na, K or -C(O)-Z, Z is C3 to C7 alkyl and X is Br or I; and the weight ratio of a to b is 1-90:90-1. The active ingredient b is optimally bromoxynil (also known as 3,5-dibromo-4-hydroxy-benzonitril, bromoxynil-octanoate or bromoxynil-enantate) or a salt ofthe bromoxynil, or optimally ioxynil (also known as 3,5-diiodo -4-hydroxy- ioxynil, ioxynil-octanoate or ioxynil-enantate) or a slat of the ioxynil.
Description
Technical field
The invention belongs to the agriculture plant protection field, relate to a kind of the have Herbicidal combinations that improves performance, especially a kind of Weeding synergetic composition.
Background technology
Glyphosate is the chronic wide spectrum steriland herbicide of inner sucting conduction type; The main interior enol acetonyl shikimene phosphate synthase of plant corpus that suppresses; Thereby suppress the conversion of shikimene, make synthetic being interfered of protein cause plant dead to phenyl alanine, cruel propylhomoserin and tryptophan.Glyphosate is transmitted to each position of plant after absorbing through cauline leaf, can prevent and kill off the plant of sections more than 40 such as unifacial leaf and dicotyledonous, annual and perennial, draft and shrub.Combine with metal ions such as iron, aluminium very soon after glyphosate buries and lose activity, seed and the edaphon that hides in the soil had no adverse effects.The weed killer herbicide of the benzyl cyanogen type of Brominal or ioxynil or their derivative is prevented and treated broadleaf weed individually or with the mixture mode widely after cereal field or other economic crops Tanakas are used for bud, usually, these weed killer herbicides abbreviate " HFH " as.In such weed killer herbicide, what especially will mention is: " Brominal " or claim 3,5-two bromo-4-hydroxyl benzyl cyanogen, Brominal monooctyl ester or Brominal heptyl ester; " ioxynil " or claim 3,5-two iodo-4-hydroxyl benzyl cyanogen, ioxynil monooctyl ester or ioxynil heptyl ester.HFH class weed killer herbicide mainly uses behind bud in early days, is that a kind of selectivity cauline leaf is handled the contact killing type weed killer herbicide.Mainly absorb,, make necrosis rapidly through suppressing photosynthesis by blade.This type of weed killer herbicide only is confined to prevent and kill off the field broad leaved weed, and is very low to the activity of grassy weed.
Summary of the invention
The object of the invention is just to the deficiency of above-mentioned weed killer herbicide in practical application separately; A kind of control uncultivated area, orchard, sugarcane field, cornfield weeding composition with synergistic effect is provided; Plurality of advantages such as said composition has efficiently, low toxicity, low-residual, low cost all have good preventive effect to grass family and broad leaved weed.
Particularly, the invention provides a kind of Weeding synergetic composition, said composition comprises two kinds of active components, active component a and active component b, and wherein active component a is glyphosate or its esters compound, active component b is that structure is the compound as shown in the formula (I):
Wherein, R be H, Na, K or-C (O)-Z, Z is C
3-7Alkyl, X are Br or I; The weight ratio of a and b is 1～90: 90～1.
Described R is preferably-C (O)-C
6H
13Or-C (O)-C
7H
15
Described active component b is preferably Brominal, and (Brominal is also referred to as 3; 5-two bromo-4-hydroxyl benzyl cyanogen, Brominal monooctyl ester or Brominal heptyl ester) or its salt; Perhaps be preferably ioxynil (ioxynil is also referred to as 3,5-two iodo-4-hydroxyl benzyl cyanogen, ioxynil monooctyl ester or ioxynil heptyl ester) or its salt.
The weight ratio of described active component a and b is preferably 1～50: 50～1, be preferably 1～10: 10～1 especially.
The active component of said composition accounts for 11～95% of composition total weight, and surplus is that agricultural goes up acceptable insecticides adjuvant.
Acceptable insecticides adjuvant is selected from carrier, adhesive, dispersant, protecting colloid, thickener, thixotropic agent, bleeding agent, stabilizing agent, chelating agent, dyestuff, colouring agent and the polymer on the said agricultural one or more mixtures and surfactant are formed jointly.
Said carrier is organic or inorganic, natural or synthetic material, and they help using of active component.This carrier generally be inertia and must to be that agricultural goes up acceptable, the plant that particularly is processed is accepted.Said carrier can be a solid, is selected from one or more the mixture in potter's clay, natural or synthetic silicate, silica, resin, wax, solid fertilizer etc.; Or liquid, be selected from one or more the mixture in water, alcohols, ketone, petroleum cuts, aromatic hydrocarbons or wax hydrocarbon, chlorohydrocarbon, the liquefied gas etc.Said carrier also can be solid and mixtures of liquids, and just carrier is selected from one or more the mixture in potter's clay, natural or synthetic silicate, silica, resin, wax, solid fertilizer, water, alcohols, ketone, petroleum cuts, aromatic hydrocarbons or wax hydrocarbon, chlorohydrocarbon, the liquefied gas.
Said surfactant comprises emulsifier, dispersant or wetting agent, and this surfactant can be ion-type or nonionic.Preferably; Said surfactant be selected from polyacrylic salt, lignosulfonates, phenolsulfonic acid or naphthalene sulfonic acids salt, oxirane and fatty alcohol or with aliphatic acid or with the polymer of aliphatic amine and fortified phenol (particularly alkylphenol or aryl phenol); Sulfosuccinate, one or more in the phosphate of taurine derivatives (particularly taurine alkane ester), alcohol phosphate or multi-hydroxy ethyl phenol.
Composition provided by the invention can comprise at least a surfactant, with help active component in the composition in water dispersion and help making them can correctly be applied to plant, the weeds in the control crop.
Composition of the present invention also can mix with conventional solid and the liquid additive that uses in the prior art, is prepared into formulations such as water dispersible granules, wetting powder, granule, soluble powder, suspending agent.
Composition of the present invention can be prepared into solid form, and that can mention has following several kinds:
Water dispersible granules (content of its active component is generally than higher, usually between 50%～90%), water dispersible granules normally prepares through the agglomeration of wettable powder type composition in suitable granular system, makes this formulation.
Wetting powder is generally with such method preparation; Promptly so that it contains 20～90% active component is as the criterion, except that solid carrier, they generally contain 0～7% wetting agent; 3～10% dispersant; In case of necessity, make it contain 0～10% one or more other additive again, like dyestuff, colouring agent, bleeding agent, adhesive or anti-caking agent etc.
Granule can prepare with following method, is about to the active component of 5～40 weight portions, the stabilizing agent of 0.1～45 weight portion, and the carrier of 12～90 weight portions is mixed with and forms.Be suitable for prilling process of the present invention and do not have special qualification; Can be the conventional method of making granular pesticide, as conventional method, can wet granulation, dry granulation, stirring granulation, extruding granulation etc.; Special, utilize the extruding granulation can simple plate and make granule at an easy rate.
Soluble powder generally with such method preparation, promptly so that its active component that contains 35-90% is as the criterion, is aided with carrier, appropriate amount of addition agent forms.
The composition that is suitable for liquid form of the present invention can be soluble liquid; Suspending agent for example; It can prepare through following method: promptly be as the criterion not form sedimental stable fluid; They generally pass through the active component with 4～85 weight portions, the surfactant of 0.5～45 weight portion, and the additive of dyestuff, colouring agent, foam reducing composition, corrosion inhibitor, stabilizing agent, bleeding agent or adhesive etc. that 0～10 weight portion is suitable is mixed with and forms; Can add carrier in the composition; Carrier can be water or organic liquid, when active component indissoluble or water fast, can some solid organic matter or mineral salt be dissolved in the liquid so that help sediments to form or as the antifreezing agent of water.
Above-mentioned composition of the present invention can be used to prevent and treat uncultivated area, orchard, sugarcane field, corn field weed; Can be applied on the surface of pending plant in the paddy field through the method for spraying, promptly be applied to and cut weeds, particularly harmful weed infestation or easy the invasion on the surface that influences plant growth; The amount of application of these compositions calculates with active component; Amount of application is usually at 200～2100 gram/hectares, preferred 280～1900 gram/hectares, more preferably 300-1500 gram/hectare.
When active component a and active component b use jointly, obtained unforeseeable synergistic effect.The specific activity of above-mentioned Herbicidal combinations is used the activity expection summation of single weed killer herbicide, and the independent activity of single active component a and b is more remarkable.Synergistic effect show as wideer weeds control spectrum, the faster onset of herbicide effect, more lasting control efficiency, through once or minority use several times just can control better and be harmful to crop and widened possible dispenser interval.These characteristics are needed in the weeds control practice process.
In addition, Herbicidal combinations of the present invention has following advantage:
1, Herbicidal combinations of the present invention has good control efficiency for uncultivated area, orchard, sugarcane field, corn field weed, and whole preventive effect is much higher than single agent.
2, the broad weed-killing spectrum of herbicidal composition of the present invention; Mainly contain: piemarker (Abutilon theophrasti), lamb's-quarters (Chenopodium album), clearvers (Galium aparine L.var tenerum (Gren.etGodr.) Reichb.), ox chickweed (Malachium aquarium), common vetch (ViciasativaL.), pale persicaria (polygonum lapathitolium L.), Eclipta prostrata (Eclipta prostrate L.), cyperus iria (Cyperusiria), Mazus japonicus (Mazus japonicus), Hairy Bittercress (Carhamine hirsute L.), Procumbent Falsepimpernel (Lindetniaprocumbens), false loosestrife (Ludwigia prostrata), naked post chrysanthemum (Soliva anthemigolia), Stellaria alsine Grim. (Stellaria alsine), summer dichotomous fimbristylis herb (Fimbaistylis aestivalis), alternanthera (Alternanthsrasessilis), hispid hedyotis herb (Hedyotis hispidaretz.), bidens pilosa (Bidens pilosa) and part grassy weed; As, amur foxtail (Alopecurus pratensis L), barnyard grass grass (Echinochloacrugalli (L.) Beauv), lady's-grass (Digitaria Sanguiralis), eleusine indica (Eleusine indica (L.) Medic.) green foxtail (Setaria viridis (L.) Beauv.), moleplant seed (Leptochloa chinensis (L.) Nees), amur foxtail (Alopecurus aequalis);
3, the herbicidal composition drug effect lasting period of the present invention long, as to the weeds in the sugarcane field, after the general dispenser 35～55 days, the fresh weight preventive effect still reached 72%～80%, has reduced spraying times, had widened dispenser interval.
4, herbicidal composition low toxicity of the present invention, during dispenser to the succession crop safety of growing, in crop and soil the residence time short, no accumulation toxicity.
5, herbicidal composition cost of the present invention is low, easy to use, and it applies huge economic benefit and social benefit.
Embodiment
The following example and unrestricted the present invention, and be used for just explaining how the present invention realizes.For some weeds, these embodiment demonstrate significant especially validity.
One, FORMULATION EXAMPLE
Embodiment 1. preparation water dispersible granules (the raw material umber sum of preparation agricultural chemicals is 100 parts)
R in active component b is Na; When X is Br, can be with the mixture of active principles (the Brominal sodium salts of the glyphosate isopropyl amine salt of 70 weight portions+15 weight portions) of 85 weight portions, 3 weight account polyethylenes alcohol; The Sodium Laurylsulfate of 4 weight portions, the kaolin of 3 weight portion wooden calcium sulfonates and surplus.
After the mentioned component mixing, in bolt type dish formula flour mill, wear into fine powder, powder is made it granulation through the water that sprays as granulation liquid in fluid bed.
Embodiment 2. preparation wetting powders (the raw material umber sum of preparation agricultural chemicals is 100 parts)
R in active component b is K; When X is I, can be with the mixture of active principles (the Brominal sylvite of the glyphosate isopropyl amine salt of 60 weight portions+15 weight portions) of 75 weight portions, the glycerine of 6 weight portion Fluhyzon formaldehyde condensation products sodium sulfonates, 3.5 weight portion neopelexes, 0.2 weight portion; The white carbon black of surplus mixes; Through ultramicro grinding, make powder reach fineness requirement, and use double helical form mixer and colter formula mixer through repeatedly mixing; Product is mixed, thereby make this high-load formulation.
R in active component b is Na, and when X was Br, above wetting powder also can make through following manner: the mixture of active principles of 65 weight portions (the Brominal sylvite of the glyphosate isopropyl amine salt of 29 weight portions+36 weight portions); 4 weight portion sodium lignin sulfonates, the NONIN HS 240 of 5 weight portions (8～9 moles of ethylene oxide), 3 weight portion alkyl polyoxy ethyl ether sodium sulfonates; The surplus attapulgite; Through ultramicro grinding, make powder reach fineness requirement, and use double helical form mixer and colter formula mixer through repeatedly mixing; Product is mixed, thereby make said preparation.
Embodiment 3. preparation soluble powders (the raw material umber sum of preparation agricultural chemicals is 100 parts)
R in active component b is Na; When X is Br, the mixture of active principles of 90 weight portions (the Brominal sodium salts of the glyphosate isopropyl amine salt of 72 weight portions+18 weight portions), the aliphatic alcohol polyethenoxy base ether (as adhesive agent) of 2 composition by weight; The alkylsulfonate of 3 composition by weight (as dispersant); 0.5 the sodium sulphate of weight portion (as cosolvent), the white carbon black of surplus makes this mixture through mixing technologies such as laggard promoting the circulation of qi stream pulverizing.
Embodiment 4. preparation granules (the raw material umber sum of preparation agricultural chemicals is 100 parts)
R in active component b is H, when X is Br, and can be with the mixture of active principles (Brominals of the glyphosate of 28 weight portions+30 weight portions) of 58 weight portions; The calcium stearate of the atoleine of the polyvinyl alcohol of 4 weight portions, 6 weight portions, 5 weight portions, the clay of surplus obtains 100 parts of mixture of powders with the above-mentioned substance mixing; And add an amount of water, and mix with small-sized kneader, carry out granulation again; Dry with the whole grain of pelletizing machine back, sieve, can obtain said preparation.
Embodiment 5. suspending agents (the raw material umber sum of preparation agricultural chemicals is 100 parts)
R in active component b is H; When X is Br; Can the activity of 48 weight portions be mixture (Brominals of the glyphosate of 32 weight portions+16 weight portions), the calcium lignosulfonate of 15 weight portions (as wetting dispersing agent), the carboxymethyl cellulose of 3 weight portions (as thickener); The water of propane diols of 4 weight portions (as antifreezing agent) and surplus makes this mixture through master operations such as mixing, stirring, sand millings.
Two, the test of pesticide effectiveness
Embodiment 6. compositions of the present invention are prevented and kill off the fresh weight preventive effect of uncultivated area weeds.
During dispenser, weeds 2～5 leaf phase dispensers.Respectively at behind the medicine 22 days, 55 days the investigation to weeds fresh weight preventive effect (table 1, table 2).
The weed killer herbicide of the present invention of table 1, different proportioning and formulation is to the preventive effect (investigation result after spraying 22 days) of uncultivated area weeds
Annotate: agent of above Brominal list and glyphosate list agent amount of application are the normal amount of application in The Institute for the Control of Agrochemicals of the Ministry of Agriculture,PRC's registration.
The weed killer herbicide of the present invention of different proportionings of table 2. and formulation is to the preventive effect (investigation result after spraying 55 days) of uncultivated area
Can find out that from table 2 Herbicidal combinations of the present invention for single agent, good preventive effect is arranged, and the lasting period is long to broad leaved weed and part grassy weed, prolong dispenser interval, reduce spraying times.
Embodiment 7. weed killer herbicides of the present invention are prevented and kill off sugarcane field weeds result of the test after 25 days:
The weed killer herbicide of the present invention of different proportionings of table 3. and formulation is to the preventive effect of sugarcane field weeds
Can find out that from table 3 Herbicidal combinations of the present invention has good herbicidal effect for single, double cotyledon weeds such as the ring dish in the sugarcane field, the sand grass of cracking rice, and to sugarcane safety.
Herbicidal combinations of the present invention and preparation method thereof is described through concrete embodiment.Those skilled in the art can use for reference links such as content appropriate change raw material of the present invention, process conditions and realize corresponding other purpose; Its relevant change does not all break away from content of the present invention; All similar replacements and change will become apparent to those skilled in the art that all to be regarded as and are included within the scope of the present invention.
Claims (13)
1. Herbicidal combinations, said composition comprises two kinds of active components, active component a and active component b, wherein active component a is glyphosate or its esters compound, active component b is that structure is the compound as shown in the formula (I):
Wherein, R is H, Na, K, and X is Br or I; The weight ratio of a and b is 1～50: 50～1.
2. composition according to claim 1, wherein active component b is Brominal or its salt, perhaps is ioxynil or its salt.
3. composition according to claim 1 and 2, wherein the weight ratio of active component a and b is 1～10: 10～1.
4. according to claim 1 or 2 said compositions, wherein active component accounts for 11～95% of composition total weight, and surplus is that agricultural goes up acceptable insecticides adjuvant.
5. composition according to claim 4, acceptable insecticides adjuvant is selected from carrier, adhesive, dispersant, protecting colloid, thickener, thixotropic agent, bleeding agent, stabilizing agent, chelating agent, colouring agent and the polymer on the wherein said agricultural one or more mixtures and surfactant are formed jointly.
6. composition according to claim 5, wherein carrier is selected from one or more the mixture in potter's clay, natural or synthetic silicate, silica, resin, wax, solid fertilizer, water, alcohols, ketone, petroleum cuts, aromatic hydrocarbons, the chlorohydrocarbon.
7. according to each described composition of claim 5-6, wherein surfactant is selected from one or more in the phosphate of salt, sulfosuccinate, taurine alkane ester, alcohol phosphate or multi-hydroxy ethyl phenol of polyacrylic salt, lignosulfonates, phenolsulfonic acid or naphthalene sulfonic acids.
8. composition according to claim 1 and 2, the formulation of said composition are water dispersible granules, wetting powder, granule, soluble powder or suspending agent.
9. composition according to claim 3, the formulation of said composition are water dispersible granules, wetting powder, granule, soluble powder or suspending agent.
10. composition according to claim 4, the formulation of said composition are water dispersible granules, wetting powder, granule, soluble powder or suspending agent.
11. the purposes of each described composition of claim 1-10 in control uncultivated area, orchard, sugarcane field, corn field weed, the amount of application of composition calculates with active component, and amount of application is 200～2100 gram/hectares.
12. the described purposes of claim 11, wherein the amount of application of composition is 280～1900 gram/hectares.
13. the described purposes of claim 12, wherein the amount of application of composition is a 300-1500 gram/hectare.
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| CN2009101817767A CN101601408B (en) | 2009-07-23 | 2009-07-23 | Enhanced weed-killing composition |
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| CN2009101817767A CN101601408B (en) | 2009-07-23 | 2009-07-23 | Enhanced weed-killing composition |
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| CN101601408B true CN101601408B (en) | 2012-11-21 |
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| CA2866353C (en) * | 2012-03-08 | 2021-01-26 | Dow Agrosciences Llc | Organic colloid-stabilized emulsion for controlling pesticide spray drift |
| CN104335848A (en) * | 2014-10-29 | 2015-02-11 | 安徽科技学院 | Lawn thatch exterminating method |
| CN115989818A (en) * | 2021-10-20 | 2023-04-21 | 江苏优士化学有限公司 | Ternary compound pesticide composition containing glyphosate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217871A (en) * | 2005-07-07 | 2008-07-09 | 拜尔作物科学股份公司 | Synergistic cultigen-compatible herbicidal agents containing herbicides from the group encompassing benzoylcyclohexadiones |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217871A (en) * | 2005-07-07 | 2008-07-09 | 拜尔作物科学股份公司 | Synergistic cultigen-compatible herbicidal agents containing herbicides from the group encompassing benzoylcyclohexadiones |
Non-Patent Citations (1)
| Title |
|---|
| 苏少泉.抗除草剂作物的发展.《农药研究与应用》.2008,第12卷(第5期),第1-6页. * |
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