CN102027978B - Mixed herbicidal composition containing nicosulfuron and application thereof - Google Patents
Mixed herbicidal composition containing nicosulfuron and application thereof Download PDFInfo
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- CN102027978B CN102027978B CN200910036181.2A CN200910036181A CN102027978B CN 102027978 B CN102027978 B CN 102027978B CN 200910036181 A CN200910036181 A CN 200910036181A CN 102027978 B CN102027978 B CN 102027978B
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- nicosulfuron
- atrazine
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Abstract
The invention discloses a mixed herbicidal composition containing nicosulfuron and application thereof. The herbicidal composition is characterized by taking atrazine, nicosulfuron and dicamba as the main active ingredients, wherein the mass ratio of atrazine to nicosulfuron to dicamba is (1-50):(1-40):(1-70). Compared with the single agent, the herbicidal composition delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the corn and the aftercrops on the premise of improving the drug effect. The herbicidal composition can be used for preparing the herbicides for postemergence weed control in the cornfield, especially the herbicides for controlling various grass and broadleaf weeds in the cornfield.
Description
Technical field
The invention belongs to technical field of pesticide, especially weed killer herbicide field, relates to the ternary built agent of a kind of atrazine, nicosulfuron and dicamba.This Herbicidal combinations can be applicable to corn field postemergence weed control.
Background technology
Corn is the staple food crop of China, national cultivated area 0.2 hundred million hm.Left and right, point spring sowing, summer sowing, three provinces in the northeast of China, Xinjiang are mainly spring corns, Huang-Huai-Hai is mainly summer corn.It is reported that national corn approximately has 1/2 area to be subject to crop smothering in various degree, the serious about 10-20% of crop smothering area, if not weeding of field can make the corn underproduction more than 50%.The economic loss causing in order to reduce crop smothering, reduces labor intensity, and also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is gradually by people are accepted simultaneously.
In recent years, along with increasing and the extensive popularization of chemical control technology in agricultural production of weed killer herbicide kind, chemical weed control has been widely used in each period of corn growth.Because different regions climate characteristic is different from planting habit, sowing and the time of cultivating of corn there are differences, to the rule of weeds in spring, corn field of summer and corn synchronous growth, basic chemical weed control mode is identical, but need consideration is mainly the factors such as temperature, soil property, corn variety and farming custom.Choose reasonable weed killer herbicide not only can reduce friend peasant labour intensity, shorten working time, cultivate cost but also can reduce, reach the object of volume increase.
Atrazine (Atrazine), has another name called atrazine, a kind of triazine herbicide, and the chloro-4-ethylamino-6-of formal name used at school 2-isopropylamino-1,3,5-triazines, its structural formula is:
Atrazine is before selectivity inner sucting conduction type seedling, herbicide after seedling, and taking root absorption as main, cauline leaf absorbs seldom, is transmitted to rapidly plant meristematic tissue and leaf portion, disturbs photosynthesis to make weeds lethal.In the resistance crop bodies such as corn, decomposed and generate innocuous substance by corn ketolase, thereby to safety such as corns.Its herbicide spectrum is wider, can prevent and kill off multiple annual gramineae and broad leaved weed.
Because atrazine is taking root absorption as main, thus when weeds generation density higher, or plant is when larger, it is difficult to thoroughly kill and cut weeds, and, had many weeds to produce serious resistance to it.
Nicosulfuron (nicosulfuron), other titles: Yu Nongle, cigarette sulphur are grand, sulfonylurea herbicide, chemical name: 2-(4,6-dimethoxypyridin-2-base carbamyl aminosulfonyl)-N, N-dimethyl nicotinamide, structural formula is:
Nicosulfuron is interior absorption, high efficiency corn weed killer herbicide, after low dosage bud with effectively preventing and kill off multiple annual gramineous weed, broad leaved weed and sedge weed in corn field.It is absorbed rapidly by leaf and root, and conducts rapidly by xylem and phloem.Stop the synthetic of branched-chain amino acid by acetolactate synthestase.Use rear weeds and stop growing immediately, 4～5 days young leaves fade, necrosis, and progressively expand to whole plant, plant death in 20～25 days after processing under general condition.This medicine not only has cauline leaf processing effect, also has the front activity of weeding of bud.
Corn has good drug resistance to this medicine, occurs temporary transient chlorisis or slight hypoevolutism, but generally can recover rapidly and the not underproduction after processing.
Although nicosulfuron can effectively be prevented and kill off some broad leaved weed such as the perennial grassy weeds such as the annual and false Chinese sorghum such as lady's-grass, green foxtail, Cowhells, barnyard grass, wild oat, the wheatgrass that crawls and chickweed, Amaranthus retroflexus, wrinkle fruit amaranth, piemarker, Siberian cocklebur, kitchen garden, also better to sedge weed preventive effects such as the rhizome ofs nutgrass flatsedge, but substantially invalid to Bermuda grass, Veronica.And because corn field uses sulfonylurea herbicide for a long time, many weeds have produced resistance.
Dicamba (dicamba), has another name called Dicamba, chemical name: the chloro-O-Anisic Acid of 3,6-bis-, belong to the weed killer herbicide that benzoic acid is, and its structural formula is:
Dicamba has interior suction conduction.This medicine, conducts by phloem and xylem very soon by the leaf of weeds, stem, root absorption up and down for spraying after seedling, and medicament focuses mostly at meristematic tissue and the vigorous position of metabolic activity, hinders the normal activity of plant hormone, thereby makes its death.Life in 1 year and perennial broadleaf weed are had to remarkable preventive effect.After the gramineous plants such as wheat, corn absorption medicament, can carry out soon metabolism decomposition and make it to lose efficacy, therefore the stronger pesticide resistance of performance.But to grassy weed to no effect, and part broad leaved weed produced resistance to it to dicamba, therefore, it has been subject to certain limitation in the use.
Corn field herbicide is limit by crop safety at present, herbicide spectrum is also limited, use separately a kind of weed killer herbicide single dose can not control completely effectively the generation of corn field weed, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or dispenser is inhomogeneous all easily causes the residual hazard to this season crop or succession crop.Therefore, the present invention selects herbicide to compose different, after atrazine, nicosulfuron and the suitable decrement of all weed killer herbicides of dicamba three of pluses and minuses complementation, being made into mixture uses, so both expanded herbicide spectrum, obviously improve herbicidal effect, also avoided this season to make deposits yields poisoning and the possibility to succession crop generation residual hazard.
Summary of the invention:
The object of this invention is to provide the mixed herbicidal composite of a kind of atrazine-containing, nicosulfuron and dicamba.
Another object of the present invention is to provide the application of this mixed herbicidal composite in the weed killer herbicide for the preparation of cornfield weeding.
A kind of mixed herbicidal composite containing nicosulfuron, it is characterized in that this Herbicidal combinations is taking atrazine, nicosulfuron and dicamba as main active ingredient, wherein, the mass ratio of atrazine, nicosulfuron and dicamba is 1～50: 1～40: 1～70, preferably the mass ratio of atrazine, nicosulfuron and dicamba is 1～40: 1～20: 1～50, most preferably 1～20: 1～10: 1～50.
In mixed herbicidal composite, atrazine, nicosulfuron and the dicamba three quality percentage composition in Herbicidal combinations is 1～85%, and preferred mass percentage composition is 20～75%, and most preferably quality percentage composition is 20～50%.Active ingredient of the present invention is all present in composition with synergy effective dose.
In the ternary built preparation of atrazine of the present invention, nicosulfuron and dicamba, except the active ingredients such as atrazine, nicosulfuron and dicamba, can also add the auxiliary agents such as the conventional surfactants, thickener, solvent or the solid packing that allow on pesticidal preparations and be mixed with any one formulation allowing on agricultural chemicals.Preferably be processed into oil-suspending agent, dry outstanding agent, water dispersion granule or wetting powder etc.Using said composition can dilute rear employing and the known method such as spray.
Described surfactant specifically can adopt alkylphenol polyoxyethylene, phenethyl phenol polyethenoxy ether, methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene nonylphenol ether, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) etc., solid packing can be selected kaolin, diatomite etc., and solvent can adopt ethylene glycol, cyclohexanone, dimethylbenzene, water etc.These auxiliary agents can alone or mixing use, also can add other auxiliary material allowing on pesticidal preparations.
" % " of the present invention is weight percentage.
Mixed herbicidal composite of the present invention can be used for corn field postemergence weed control, particularly prevents and kill off various grass family and broad leaved weed in corn field and has remarkable result.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding is high.Herbicidal combinations of the present invention can kill weeds by three kinds of different mechanism, makes Weed Resistance produce Speed Reduction, greatly improves the removing activity of Herbicidal combinations.
2, herbicidal spectrum is wide, and the lasting period is long.Nicosulfuron is all broad spectrum weeding agent, its preventive effect to grassy weed and nutgrass flatsedge is better than broad leaved weed, atrazine is better than grassy weed to the preventive effect of broad leaved weed, and dicamba is the Herbicidal combinations of preventing and kill off broad leaved weed, and it has good preventive effect to perennial weed and undershrub.After three mixes, herbicidal spectrum almost bedding whole farmland weed, and, because atrazine and dicamba have activity of weeding before bud, this Herbicidal combinations is combined in while preventing and kill off unearthed weeds, there is certain activity to being about to the unearthed weeds of germination, suppressed the unearthed growth of weeds, extended the lasting period of medicament.
3, delay Weed Resistance.The present invention can significantly improve the preventive effect to various resistant weeds, delays the generation of herbicide resistance, has extended the service life of medicament.
4, safe.Herbicidal combinations of the present invention, is applied to corn field postemergence weed control, and it can prevent and kill off various grass family and broad leaved weed in corn field, is improving under the prerequisite of drug effect, and corn and succession crop are all had to safety.
Therefore, mixed herbicidal composite of the present invention can be applied in the weed killer herbicide of preparing corn field postemergence weed control, particularly in the weed killer herbicide of grass family and broad leaved weed in corn field is prevented and kill off in preparation, applies.
Specific embodiments
Embodiment 1
Atrazine 20%, nicosulfuron 2%, dicamba 16%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, xanthans 2%, vegetable oil supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 38% oil-suspending agent.
Embodiment 2
Atrazine 2%, nicosulfuron 2%, dicamba 1%, NN0 (sodium methylene bis-naphthalene sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, being mixed with quality percentage composition according to conventional formulation method is 5% dry outstanding agent.
Embodiment 3
Atrazine 13%, nicosulfuron 10%, dicamba 25%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 48% the granule that dispersibles.
Embodiment 4
Atrazine 10%, nicosulfuron 5%, dicamba 50%, NNO (sodium methylene bis-naphthalene sulfonate) 9%, sodium lignin sulfonate 7%, white carbon 9%, kaolin supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 65% wetting powder.
Embodiment 5
Atrazine 29%, nicosulfuron 1%, dicamba 10%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, xanthans 2%, vegetable oil supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 40% oil-suspending agent.
Embodiment 6
Atrazine 1%, nicosulfuron 10%, dicamba 14%, NN0 (sodium methylene bis-naphthalene sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, being mixed with quality percentage composition according to conventional formulation method is 25% dry outstanding agent.
Embodiment 7
Atrazine 60%, nicosulfuron 14%, dicamba 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 75% the granule that dispersibles.
Embodiment 8
Atrazine 20%, nicosulfuron 40%, dicamba 15%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 75% the granule that dispersibles.
Embodiment 9
Nicosulfuron 5%, atrazine 10%, dicamba 60%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 75% the granule that dispersibles.
Embodiment 8
1), toxicity determination test
Utilize the preparation of embodiment 1～4, measure its co-toxicity coefficient to corn field common weed dayflower.
Test method: the seed of quantitative dayflower is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, cultivate in illumination box, in the time of 3～6 leaf phase of dayflower, in the crawler type processing of doing to spray on composition spray.After processing, in greenhouse, continue to cultivate, routine observation is respectively processed the preventive effect to weeds, weighs each weeds fresh weight after treatment after 30d, by the abundant method of Sun Yun (nineteen sixty proposition), calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, shows that two kinds of active principles have synergistic effect, and co-toxicity coefficient is less than 100, shows that two kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite is all greater than 100, illustrates that the present invention has obvious synergistic effect.
2), field control effectiveness test:
Reagent agent:
4 kinds of ternary built weed killer herbicides in embodiment 1～4.
Contrast medicament:
40g/l nicosulfuron oil suspending agent (Japanese Ishihara Sangyo Kaisha, Ltd.), 38% atrazine suspending agent (commercially available), 48% dicamba aqueous solution (commercially available).
For studying thing: corn
Maize seedling was 3～6 leaf phases, grew fine, and robust plant, without other damage by disease and insect.
Prevent and kill off object:
The corn field advantage weeds such as lady's-grass, green foxtail, Ya Zhi grass, little lamb's-quarters, willow leaf knotweed.
Test method:
According to the area of experimental plot, accurately weigh good various medicaments, and be watered after dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head that sprinkler selection weed killer herbicide is special.When spraying, note liquid evenly to spray application in experimental plot the phenomenon of accomplishing there is no drain spray, spraying more.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicaments (consumption is the consumption of every mu of ground active ingredient).In addition, also to after medicine, in 1～15d, observe the condition of production of crop, to investigate medicament, whether crop be had to poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d after medicine) and table 3 (40d after medicine).
20 days drug effect results after table 2 dispenser
| Treatment agent | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 4 | 95 | 94 | 94 |
| Embodiment 2 | 4 | 97 | 92 | 91 |
| Embodiment 3 | 4 | 95 | 90 | 94 |
| Embodiment 4 | 4 | 96 | 91 | 93 |
| 40g/l nicosulfuron oil suspending agent | 4 | 85 | 75 | 83 |
| 38% atrazine suspending agent | 80 | 87 | 86 | 86 |
| 48% dicamba aqueous solution | 20 | - | 80 | 49 |
40 days drug effect results after table 3 dispenser
| Treatment agent | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 4 | 90 | 92 | 90 |
| Embodiment 2 | 4 | 93 | 90 | 91 |
| Embodiment 3 | 4 | 93 | 90 | 90 |
| Embodiment 4 | 4 | 91 | 88 | 91 |
| 40g/l nicosulfuron oil suspending agent | 4 | 75 | 70 | 73 |
| 38% atrazine suspending agent | 80 | 77 | 72 | 75 |
| 48% dicamba aqueous solution | 20 | - | 60 | 39 |
From table 2 and table 3, can find out, the present invention has significant preventive effect to grassy weed and broad leaved weed, and synergy is remarkable, and the lasting period is long.
The security survey result of table 4 medicament to crop
Each corn of processing in community grows fine, and has no any medicine spot, illustrates that various medicaments are to all safety of corn.
Claims (6)
1. containing a mixed herbicidal composite for nicosulfuron, it is characterized in that this Herbicidal combinations is taking atrazine, nicosulfuron and dicamba as active ingredient, concrete composition is as follows:
Atrazine 20%, nicosulfuron 2%, dicamba 16%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, xanthans 2%, vegetable oil supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 38% oil-suspending agent.
2. containing a mixed herbicidal composite for nicosulfuron, it is characterized in that this Herbicidal combinations is taking atrazine, nicosulfuron and dicamba as active ingredient, concrete composition is as follows:
Atrazine 2%, nicosulfuron 2%, dicamba 1%, sodium methylene bis-naphthalene sulfonate 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, being mixed with quality percentage composition according to conventional formulation method is 5% dry outstanding agent.
3. containing a mixed herbicidal composite for nicosulfuron, it is characterized in that this Herbicidal combinations is taking atrazine, nicosulfuron and dicamba as active ingredient, concrete composition is as follows:
Atrazine 13%, nicosulfuron 10%, dicamba 25%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 48% the granule that dispersibles.
4. containing a mixed herbicidal composite for nicosulfuron, it is characterized in that this Herbicidal combinations is taking atrazine, nicosulfuron and dicamba as active ingredient, concrete composition is as follows:
Atrazine 10%, nicosulfuron 5%, dicamba 50%, sodium methylene bis-naphthalene sulfonate 9%, sodium lignin sulfonate 7%, white carbon 9%, kaolin supplies 100%, and being mixed with quality percentage composition according to conventional formulation method is 65% wetting powder.
5. the application of the mixed herbicidal composite containing nicosulfuron described in claim 1,2,3 or 4 in the weed killer herbicide for the preparation of corn field postemergence weed control.
6. application according to claim 5, is characterized in that the application of the described mixed herbicidal composite containing nicosulfuron in the weed killer herbicide for the preparation of grass family in preventing and kill off corn field and broad leaved weed.
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| CN200910036181.2A CN102027978B (en) | 2009-09-28 | 2009-09-28 | Mixed herbicidal composition containing nicosulfuron and application thereof |
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| CN200910036181.2A CN102027978B (en) | 2009-09-28 | 2009-09-28 | Mixed herbicidal composition containing nicosulfuron and application thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103222470A (en) * | 2012-01-31 | 2013-07-31 | 胡登魁 | Leaves-removing herbicide after seedling emergence |
| CN102907421B (en) * | 2012-10-26 | 2014-06-25 | 山东潍坊润丰化工股份有限公司 | Water dispersible granules containing dicamba salt and atrazine and method for manufacturing water dispersible granules |
| CN102939980A (en) * | 2012-10-30 | 2013-02-27 | 吉林省八达农药有限公司 | Herbicide composition containing dicamba, nicosulfuron and atrazine, and preparation method thereof |
| CN114680112B (en) * | 2020-12-25 | 2023-11-07 | 山东省联合农药工业有限公司 | Mixed weeding composition containing dicamba, cyclosulfamide and atrazine and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2388428A1 (en) * | 1999-09-30 | 2001-04-05 | Bayer Aktiengesellschaft | Selective herbicides on the basis of n-aryl-triazoline(thi)ones |
| CN1314785A (en) * | 1998-07-16 | 2001-09-26 | 阿温提斯作物科学有限公司 | Herbicides with substituted phenyl sulfonylureas for controlling weeds in rice field |
| CN1425297A (en) * | 2001-12-12 | 2003-06-25 | 马韵升 | Nicosulfuron herbicide composition |
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- 2009-09-28 CN CN200910036181.2A patent/CN102027978B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314785A (en) * | 1998-07-16 | 2001-09-26 | 阿温提斯作物科学有限公司 | Herbicides with substituted phenyl sulfonylureas for controlling weeds in rice field |
| CA2388428A1 (en) * | 1999-09-30 | 2001-04-05 | Bayer Aktiengesellschaft | Selective herbicides on the basis of n-aryl-triazoline(thi)ones |
| CN1425297A (en) * | 2001-12-12 | 2003-06-25 | 马韵升 | Nicosulfuron herbicide composition |
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Effective date of registration: 20180523 Address after: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Co-patentee after: Nanjing Redsun Co., Ltd. Patentee after: Nanjing Huazhou Pharmaceutical Co., Ltd. Address before: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Patentee before: Nanjing Huazhou Pharmaceutical Co., Ltd. |
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