CN101601403B - Weeding composition containing cyhalofop-butyl and bensulfuron-methyl for paddy field - Google Patents
Weeding composition containing cyhalofop-butyl and bensulfuron-methyl for paddy field Download PDFInfo
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- CN101601403B CN101601403B CN 200910181774 CN200910181774A CN101601403B CN 101601403 B CN101601403 B CN 101601403B CN 200910181774 CN200910181774 CN 200910181774 CN 200910181774 A CN200910181774 A CN 200910181774A CN 101601403 B CN101601403 B CN 101601403B
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Abstract
The invention discloses a weeding composition containing cyhalofop-butyl and bensulfuron-methyl for paddy field, which comprises active ingredient a and active ingredient b, wherein the active ingredient a is cyhalofop-butyl, the active ingredient b is bensulfuron-methyl, the weight ratio of the active ingredient a to the active ingredient b is 1-90:90-1; preferably, the weight ratio of the active ingredient a to the active ingredient b is 1-50:50-1, and particularly preferred, the weight ratio of the active ingredient a to the active ingredient b is 1-10:10-1. The active ingredients of the composition account for 11 to 95 percent of the total weight of the composition, and the balance is agriculturally acceptable pesticide adjuvant.
Description
Technical field
The invention belongs to the agriculture plant protection field, relate to a kind of Herbicidal combinations that improves performance that has, especially relate to a kind of Weeding synergetic composition.
Background technology
Cyhalofop-butyl is unique in fragrant phenoxy phenoxy propionic acid weed killer herbicide paddy rice to be had the kind of tight security.Cyhalofop-butyl is also interior suction conductivity weed killer herbicide, blade and leaf sheath by plant corpus absorb, the phloem conduction, accumulate the meristem zone in plant corpus, suppress acetyl-CoA carboxylase, fatty acid is synthesized stop, the growth division of cell can not normally be carried out, film system etc. contains the fat structural deterioration, causes at last plant dead.The cyhalofop-butyl speed of action is slower, generally needs to make in 1～3 week weeds dead.In the paddy rice body, cyhalofop-butyl can be degraded to rapidly the diacid attitude to the acetyl-CoA carboxylase non-activity, thereby cyhalofop-butyl has the safety of height to paddy rice.Degrade in water and soil due to cyhalofop-butyl rapidly, to succession crop safety.Bensulfuron-methyl is a kind of selectivity inner sucting conduction type herbicides for use in paddy.Paddy rice life in 1 year and perennial broadleaf weed and nutgrass flatsedge can be effectively prevented and treated, other positions can be absorbed and pass to by weeds root, leaf.To rice safety, using method is flexible.This type of weed killer herbicide only is confined to prevent and kill off field broad leaved weed and nutgrass flatsedge, and is very low to the activity of grassy weed, and long-term a large amount of this type of weed killer herbicide that uses easily produces resistance risk.
Summary of the invention
Purpose of the present invention is just for the deficiency of above-mentioned weed killer herbicide in practical application separately, a kind of herbicide composition for paddy fields with synergistic effect is provided, the plurality of advantages such as this Herbicidal combinations has efficiently, low toxicity, low-residual, low cost all have good preventive effect to grass family, sedge family and broad leaved weed.
Particularly, the invention provides a kind of Herbicidal combinations, said composition comprises two kinds of active components, active component a and active component b, wherein active component a is cyhalofop-butyl, active component b is bensulfuron-methyl, the weight ratio of active component a and b is 1～90: 90～1, preferably, the weight ratio of active component a and b is 1～50: 50～1, and particularly preferably the weight ratio of active component a and b is 1～10: 10～1.
In described composition, active component accounts for 11～95% of composition total weight, and surplus is the upper acceptable insecticides adjuvant of agricultural.
One or more mixtures and surfactant that on described agricultural, acceptable insecticides adjuvant is selected from carrier, adhesive, dispersant, protecting colloid, thickener, thixotropic agent, bleeding agent, stabilizing agent, chelating agent, dyestuff, colouring agent and polymer form jointly.
Described carrier is organic or inorganic, natural or synthetic material, and they help using of active component.This carrier be generally inertia and must be that agricultural is upper acceptable, particularly processed plants is accepted.Described carrier can be 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, liquefied gas etc.Described carrier can be also the mixture of solid and liquid, and namely 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, liquefied gas.
Described surfactant comprises emulsifier, dispersant or wetting agent, and this surfactant can be ionic or nonionic.Preferably; described 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, be conducive to active component in composition in water dispersion and be conducive to make 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 prior art, is prepared into the 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 having of can mentioning is following several:
Water dispersible granules (content of its active component is generally higher, usually between 50%～90%), water dispersible granules is normally prepared by the agglomeration of wettable powder type composition in suitable granular system, makes this formulation.
Wetting powder is generally with such method preparation, namely so that it contains 20～90% active component is as the criterion, except solid carrier, they generally contain 0～7% wetting agent, 3～10% dispersant, in case of necessity, then make it contain 0～10% one or more other additive, as 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.There is no particular limitation to be suitable for prilling process of the present invention, can be the conventional method of making granular pesticide, as conventional method, can wet granulation, dry granulation, stirring granulation, extruding granulation etc., especially, utilize the extruding granulation can simple plate and make at an easy rate granule.
Soluble powder is general to be prepared with such method, namely so that it contains 35～90% active component 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 by following method: namely be as the criterion to obtain not forming sedimental stable fluid, they are generally by the active component with 4～85 weight portions, 0.5 the surfactant of～45 weight portions, the dyestuff that 0～10 weight portion is suitable, colouring agent, foam reducing composition, corrosion inhibitor, stabilizing agent, the additive of bleeding agent or adhesive etc. is mixed with and forms, can add carrier in composition, carrier can be water or organic liquid, when active component indissoluble or water fast, some solid organic matter or mineral salt can be dissolved in liquid in order to help sediments to form or as the antifreezing agent of water.
Above-mentioned composition of the present invention can be used for the control paddy field weed, can be applied on the surface of pending plant in paddy field by the method for spraying, namely be applied to and cut weeds, the weed infestation or easy the invasion on the surface that affects that particularly plant growth are harmful to, the amount of application of these compositions calculates with active component, amount of application is usually at 20～1800 g/has, and preferred 30～1200 g/has, more preferably 100-1000 g/ha.
Active component a of the present invention and active component b jointly use or successively use, and have obtained unforeseeable synergistic effect.The specific activity of above-mentioned Herbicidal combinations is used the activity expection summation of single active component, and the independent activity of single active component a and active component b is more remarkable.Synergistic effect show as wider weeds control spectrum, the faster onset of herbicide effect, more lasting control efficiency, by once or minority use several times just can control better and be harmful to crop and widened possible dispenser interval.These characteristics are that weeds are controlled in practice process needed.
In addition, Herbicidal combinations of the present invention has following advantage:
1, the broad weed-killing spectrum of herbicidal composition of the present invention, bensulfuron-methyl has made up cyhalofop-butyl to broad leaved weed, shortcoming that the sedge weed preventive effect is low, improve the herbicide spectrum, only needed a drug just can prevent and treat the harm of multiple grassy weed, broad leaved weed, sedge weed and have certain effect of increasing production;
3, the herbicidal composition drug effect lasting period of the present invention long, after general dispenser 31～45 days, the fresh weight preventive effect still reached 73%～82%, has reduced spraying times, had widened dispenser interval;
4, herbicidal composition low toxicity of the present invention, during use to paddy growth safety, in crop and soil the residence time short, without 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 illustrating how the present invention realizes.For some weeds, these embodiment demonstrate significant especially herbicidal effect.
FORMULATION EXAMPLE
Embodiment 1. preparation water dispersible granules (the raw material umber sum of preparation agricultural chemicals is 100 parts)
With the mixture of active principles (35 weight portion cyhalofop-butyls+43 weight portion bensulfuron-methyls) of 78 weight portions, the Sodium Laurylsulfate of 3 weight portions, 4 weight account polyethylene alcohol, the kaolin of 3 weight portion wooden calcium sulfonates and surplus.
After mentioned component is mixed, wear into fine powder in bolt type dish formula flour mill, powder is made it granulation by 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)
Mixture of active principles (39 weight portion cyhalofop-butyls+16 weight portion bensulfuron-methyls) with 55 weight portions, the glycerine of 3 weight portion neopelexes, 5 weight portion Fluhyzon formaldehyde condensation products sodium sulfonates, 1 weight portion, the surplus White Carbon black is mixed, through ultramicro grinding, make powder reach fineness requirement, and use double helical form mixer and coulter type mixer through repeatedly mixing, make Product mix even, thereby make this high-load formulation.
Embodiment 3. preparation granules (the raw material umber sum of preparation agricultural chemicals is 100 parts)
Mixture of active principles (27 weight portion cyhalofop-butyls+38 weight portion bensulfuron-methyls) with 65 weight portions; the calcium stearate of the polyvinyl alcohol of the atoleine of 8 weight portions, 5 weight portions, 2 weight portions; the clay of surplus; above-mentioned substance is mixed to get 100 parts of mixture of powders, and adds appropriate water, mix with small-sized kneader; carry out again granulation; with dry after the whole grain of pelletizing machine, sieve, can obtain said preparation.
Embodiment 4. suspending agents (the raw material umber sum of preparation agricultural chemicals is 100 parts)
The activity of 35 weight portions is mixture (bensulfuron-methyls of the cyhalofop-butyl of 13 weight portions+22 weight portions), the carboxymethyl cellulose of 4 weight portions (as thickener), the propane diols of 2 weight portions (as antifreezing agent), the calcium lignosulfonate of 11 weight portions (as wetting dispersing agent), and the water of surplus, make this mixture by master operations such as mixing, stirring, sand millings.
The test of pesticide effectiveness
Embodiment 5. composition of the present invention is prevented and kill off the fresh weight preventive effect of rice direct-seeding field weed.
During dispenser, weeds 2～4 leaf phase dispensers.Investigation in 25 days is to weeds fresh weight preventive effect (table 1) after medicine.
The weed killer herbicide of the present invention of the different proportionings of table 1. and formulation is to the preventive effect of rice direct-seeding field weed (after medicine 25 days)
Above treatment dosage is to the equal safety of paddy growth.
Embodiment 6. weed killer herbicide of the present invention is prevented and kill off rice seedling bed weeds result of the test (seeing Table 2) after 15 days:
The preventive effect of the weed killer herbicide of the present invention of the different proportionings of table 2. and formulation to the rice seedling bed weeds
As can be seen from the above table, component (a) and the composition that (b) forms have good herbicidal effect for conventional weeds such as rice seedling bed barnyard grass, difformed galingale herb, Monochoria vaginalis, and above processing is to the equal safety of rice seedling.
Herbicidal combinations of the present invention and preparation method thereof is described by specific embodiment.Those skilled in the art can use for reference the 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, within all similar replacements and change will become apparent to those skilled in the art that and all be deemed to be included in scope of the present invention.
Claims (6)
1. a Herbicidal combinations, is characterized in that said composition comprises two kinds of active components, active component a and active component b, and wherein active component a is cyhalofop-butyl, and active component b is bensulfuron-methyl, and the weight ratio of active component a and b is 39: 16～27: 38.
2. composition according to claim 1, in said composition, active component accounts for 55～78% of composition total weight.
3. according to claim 1-2 described compositions of any one, also contain the upper acceptable insecticides adjuvant of agricultural in said composition.
4. composition according to claim 3, its formulation is water dispersible granules, wetting powder and granule.
5. the described composition of claim 1-4 any one is used for the purposes of control paddy field weed.
6. purposes according to claim 5, the amount of application of composition calculates with active component, and amount of application is 20～1800 g/has.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910181774 CN101601403B (en) | 2009-07-23 | 2009-07-23 | Weeding composition containing cyhalofop-butyl and bensulfuron-methyl for paddy field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910181774 CN101601403B (en) | 2009-07-23 | 2009-07-23 | Weeding composition containing cyhalofop-butyl and bensulfuron-methyl for paddy field |
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| CN101601403A CN101601403A (en) | 2009-12-16 |
| CN101601403B true CN101601403B (en) | 2013-06-26 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102484999A (en) * | 2010-12-02 | 2012-06-06 | 江苏丘陵地区镇江农业科学研究所 | Herbicide compound composition used for preventing and treating weeds in rice fields and its application |
| US9055742B2 (en) * | 2011-06-22 | 2015-06-16 | Dow Agrosciences Llc | Herbicide granules with built-in adjuvant |
| CN103214301B (en) * | 2013-03-25 | 2016-05-11 | 广东中迅农科股份有限公司 | Granule of a kind of dichloro quinolinic acid and bensulfuron-methyl and preparation method thereof |
| CN103636648B (en) * | 2013-10-30 | 2016-08-17 | 广东中迅农科股份有限公司 | A kind of Herbicidal combinations containing pyribenzoxim |
| CN107027796A (en) * | 2017-05-12 | 2017-08-11 | 南京惠宇农化有限公司 | It is a kind of for herbicidal composition of rice terrace and application thereof |
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2009
- 2009-07-23 CN CN 200910181774 patent/CN101601403B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 吴明根等.磺酰脲类除草剂和芳氧苯氧基丙酸类除草剂相互作用机理的研究.《延边大学农学学报》.2003,第25卷(第4期),第233-239页. * |
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Address after: 224100 South Head of Wanggang Gate, Dafeng District, Yancheng City, Jiangsu Province Patentee after: JIANGSU HUIFENG BIO AGRICULTURE Co.,Ltd. Address before: 224100 No. 90 Renmin South Road, Dafeng City, Jiangsu Province Patentee before: JIANGSU HUIFENG AGROCHEMICAL Co.,Ltd. |
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Effective date of registration: 20210111 Address after: 224100 south of Wei'er road and jing'er Road, Biotechnology Park, Port Economic Zone, Dafeng District, Yancheng City, Jiangsu Province Patentee after: Andao maihuifeng (Jiangsu) Co.,Ltd. Address before: 224100 South Head of Wanggang Gate, Dafeng District, Yancheng City, Jiangsu Province Patentee before: JIANGSU HUIFENG BIO AGRICULTURE Co.,Ltd. |
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