CN103704235A - Weeding composition for control of annual weeds in corn field - Google Patents
Weeding composition for control of annual weeds in corn field Download PDFInfo
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- CN103704235A CN103704235A CN201310634477.0A CN201310634477A CN103704235A CN 103704235 A CN103704235 A CN 103704235A CN 201310634477 A CN201310634477 A CN 201310634477A CN 103704235 A CN103704235 A CN 103704235A
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Abstract
The invention discloses a weeding composition for control of annual weeds in corn field. The weeding composition contains an active component a, an active component b and an active component c. Specifically, the active component a is rimsulfuron, the active component b is fluroxypyr or its ester compound, and the active component c is bromoxynil or bromoxynil octanoate. The weeding composition provided by the invention is used for control of annual weeds in corn field. The control effect of the weeding composition provided by the invention is significantly improved a single agent, the dosages of pesticides are reduced, and the adverse impacts of pesticides on the ecological environment are reduced. The weeding composition provided by the invention has important significance on the comprehensive management of weed resistance, thus having enormous economic benefits and social benefits.
Description
Technical field
The invention belongs to pesticidal preparations field, be specifically related to a kind of for preventing and kill off the Herbicidal combinations of corn field annual weed.
Background technology
Rimsulfuron is absorption agricultural compound in sulfonylurea, can be plant stem-leaf and root absorption, the first poor growth of plant of being injured, then move back the withered spot of green generation, until complete stool is dead, can effectively prevent and kill off or control most of annual weed, preventive effect to grassy weed is better than broad leaved plant, but the corn of some kind has stronger detoxification ability in the 2-4 leaf phase to the rimsulfuron of doses, most of annual weed does not possess, therefore most of annual weed is prevented and kill off or controls in the farmland that rimsulfuron is mainly used in some kind corn, but a large amount of uses along with rimsulfuron, some weeds is as dayflower, Annual Ryegrasss etc. strengthen its resistance, such weeds under safe dose, have been difficult to effectively prevent and kill off or control.
Fluroxypyr is inner sucting conduction type herbicide after seedling, after dispenser, is absorbed by plants very soon, makes sensitive plant occur the reaction of typical hormone herbicide, and plant is lopsided, distortion, finally withered.Be applicable to the ground such as wheat, barley, corn, grape, orchard, pasture, forest land, lawn and prevent and kill off broad leaved weed; As clearvers, volume stem knotweed, kitchen garden, black nightshade, field bindweed, knotweed, amaranth etc., invalid to grassy weed, to crop safety.Because fluroxypyr can only be prevented and kill off broad leaved weed, use cost is higher, and actual preventive effect is relatively poor, is unfavorable for that spread is used.
Brominal and bromoxynil octanoate are that after selectivity seedling, cauline leaf is processed contact killing type weed killer herbicide, mainly by blade, absorbed, in plant corpus, carry out extremely limited conduction, by each process of inhibited photosynthesis, comprise and suppress photophosphorylation reaction and electronics transmission, particularly photosynthetic Hill reaction, make plant tissue downright bad rapidly, thereby reach herbicide object, speeding-up blade is withered when temperature is higher, be mainly used in preventing and kill off corn field annual broadleaf weed.
The inventor conducts in-depth research being mixed of rimsulfuron, fluroxypyr and ester type compound thereof, Brominal and bromoxynil octanoate, on the basis of a large amount of formula indoor screening tests and field medicine effect test, discovery three is mixed Annual Ryegrass, acalypha copperleaf, dayflower, chenopodium glaucum linn is had to synergistic effect, unit or two yuan of combinations improve weeding quick-acting, expand herbicide spectrum relatively, compared with prior art have novelty, creativeness and practicality.
Rimsulfuron, fluroxypyr or its ester class, bromoxynil octanoate or Brominal composite without relevant report, the present invention does not lose novelty.
Documents CN101961023B Herbicidal combinations and application thereof, reported that fluroxypyr derivative, mesotrione, solsonylurea compounds combination prevent and kill off the annual and perennial grassy weed of corn field and broad leaved weed; Documents CN102326572A is containing the Herbicidal combinations of rimsulfuron and fluroxypyr.
The present invention is expanding on the basis of herbicide spectrum, thereby composition greatly improves weeding quick-acting and has reduced the weeds extent of injury, relatively unit or two yuan of compositions significantly and then have significantly reduced agricultural chemicals usage amount to corn field main weeds and resistant weed Annual Ryegrass, acalypha copperleaf, dayflower, chenopodium glaucum linn synergy, reduce use cost and reduce carrying capacity of environment, from combination and essentiality content, be all different from disclosed associated documents of documents CN101961023B, CN102283231B and other completely, creative.
The present invention possesses the prospect of industrial applications, can excipient be the upper conventional formulation of agricultural, possesses practicality.
Summary of the invention
The object of the invention is to solve the single or two yuan of deficiencies while using of weed killer herbicide; improve quick-acting; expand herbicide spectrum; corn field main weeds and resistant weed Annual Ryegrass, acalypha copperleaf, dayflower, chenopodium glaucum linn are had significant synergies; obviously reduce use cost; reduce agricultural chemicals usage amount and significantly reduce carrying capacity of environment simultaneously, for the corn field weed comprehensive regulation and environmental protection, there is positive effect.
Technical scheme of the present invention: a kind of for preventing and kill off the Herbicidal combinations of corn field annual weed, comprise active ingredient a, active ingredient b and active ingredient c; Wherein active ingredient a is rimsulfuron, active ingredient b is fluroxypyr or its ester type compound, active ingredient c is Brominal or bromoxynil octanoate, the percentage by weight of active ingredient a in composition is 0.1-20%, the percentage by weight of active ingredient b in composition is 0.1-40%, the percentage by weight of active ingredient c in composition is 0.1～50%, and surplus is the upper acceptable insecticides adjuvant of agricultural.
The insecticides adjuvant using in Herbicidal combinations of the present invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, bleeding agent, thickener, defoamer, antifreezing agent, disintegrant, binding agent, filler, carrier, medium, surfactant etc., all various compositions conventional in pesticidal preparations or that allow to use, be not particularly limited, concrete composition and consumption require to determine by simple test according to formula.
Herbicidal combinations of the present invention is prepared into and is applicable to the upper multiple formulation of using of agricultural by known method, and reasonable formulation has wetting powder, water dispersible granules, microemulsion, aqueous emulsion, suspending agent.
The production technology of the described various application forms of Herbicidal combinations all belongs to existing known technology, does not repeat them here.
Herbicidal combinations provided by the invention, is applicable to prevent and kill off corn field annual weed.
Herbicidal combinations provided by the invention, adopts cauline leaf spraying or directed spraying to use conventionally.Product described in the invention can finished product preparation form provide, in composition, each material mixes, the form that the composition of composition also can single dose provides, and before use, directly in tank or bucket, mixes, and is then diluted to needed concentration.The frequency of administration of the present composition and amount of application change with weather condition and crop state variation, can be by using suitable formulation to reach the object of control.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, has significantly improved quick-acting with respect to unit or two yuan of combinations.
2, provided by the invention is Herbicidal combinations, with respect to unit or two yuan of combinations, has expanded herbicide spectrum.
3, Herbicidal combinations provided by the invention, has significant synergies to Annual Ryegrass, acalypha copperleaf, dayflower, chenopodium glaucum linn with respect to unit or two yuan of combinations.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as the restriction to scope of the present invention.It should be pointed out that all any modifications of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.
Embodiment mono-:
The Toxicity Determination of rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate and composite Annual Ryegrass thereof, acalypha copperleaf, dayflower, chenopodium glaucum linn:
According to Colby method, evaluate weed killer herbicide associated form (NY/T1155.7-2006), its formula is as follows:
In formula: A is rimsulfuron fresh weight inhibiting rate to target weeds when alone with certain dosage;
B is the different monooctyl ester of fluroxypyr fresh weight inhibiting rate to target weeds when alone with certain dosage;
C is bromoxynil octanoate fresh weight inhibiting rate to target weeds when alone with certain dosage;
N is the weed killer herbicide kind number being mixed;
E
0during for rimsulfuron, the different monooctyl ester of fluroxypyr, three kinds of pharmacy mix of bromoxynil octanoate to target
The theoretical value of mark weeds fresh weight inhibiting rate;
It when E is rimsulfuron, the different monooctyl ester of fluroxypyr, three kinds of pharmacy mix of bromoxynil octanoate, to target weeds fresh weight inhibiting rate, is the measured value of contrast.
Evaluation criterion: work as E
0during ﹣ E > 10%, be expressed as synergistic effect; As ﹣ 10%≤E
0during ﹣ E≤10%, show as summation action; Work as E
0during ﹣ E < ﹣ 10%, show as antagonism.
Table one, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate and the composite Toxicity Determination result to Annual Ryegrass thereof.
According to Colby method, evaluate weed killer herbicide associated form, table one data show, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate triple combination are remarkable to Annual Ryegrass synergistic effect, E
0-E value is all greater than 20%.
Table two, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate and the composite Toxicity Determination result to acalypha copperleaf thereof.
According to Colby method, evaluate weed killer herbicide associated form, table two data show, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate triple combination are remarkable to acalypha copperleaf synergistic effect, E
0-E value is all greater than 20%.
Table three, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate and the composite Toxicity Determination result to dayflower thereof.
According to Colby method, evaluate weed killer herbicide associated form, table three data show, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate triple combination are remarkable to dayflower synergistic effect, E
0-E value is all greater than 20%.
Table four, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate and the composite Toxicity Determination result to chenopodium glaucum linn thereof.
According to Colby method, evaluate weed killer herbicide associated form, table four data show, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate triple combination are remarkable to chenopodium glaucum linn synergistic effect, E
0-E value is all greater than 20%.
Described in consolidated statement one, two, three, four, rimsulfuron, the different monooctyl ester of fluroxypyr, bromoxynil octanoate triple combination all show significant synergistic effect to Annual Ryegrass, acalypha copperleaf, dayflower, chenopodium glaucum linn.
Embodiment bis-: field medicine effect test.
Adopt Herbicidal combinations of the present invention, for preventing and kill off corn field annual weed, test of pesticide effectiveness result is as follows.
Table five, field medicine effect test result.
Known by table five, rimsulfuron, the different monooctyl ester of fluroxypyr, the relative monobasic of bromoxynil octanoate ternary built or binary combination have expanded herbicide spectrum, have significantly improved quick-acting, have reduced agricultural chemicals relative usage amount.
In sum, component of the present invention is reasonable, has remarkable synergistic effect, significantly improves quick-acting, expands herbicide spectrum, and exploitation has prospect widely for cornfield weeding.
Claims (5)
1. for preventing and kill off a Herbicidal combinations for corn field annual weed, it is characterized in that: comprise active ingredient a, active ingredient b and active ingredient c; Wherein active ingredient a is rimsulfuron, and active ingredient b is fluroxypyr or its ester type compound, and active ingredient c is Brominal or bromoxynil octanoate.
2. according to claim 1 a kind of for preventing and kill off the Herbicidal combinations of corn field annual weed, it is characterized in that: the percentage by weight of active ingredient a in composition is 0.1-20%, the percentage by weight of active ingredient b in composition is 0.1-40%, the percentage by weight of active ingredient c in composition is 0.1～50%, and surplus is the upper acceptable insecticides adjuvant of agricultural.
3. according to claim 2 a kind of for preventing and kill off the Herbicidal combinations of corn field annual weed, it is characterized in that: in described agricultural, acceptable insecticides adjuvant is selected from one or more in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, bleeding agent, thickener, defoamer, antifreezing agent, disintegrant, binding agent, filler, carrier, medium, surfactant.
4. a kind of for preventing and kill off the Herbicidal combinations of corn field annual weed according to described in claim 1,2 or 3, is characterized in that: the formulation of described Herbicidal combinations can be a kind of in wetting powder, water dispersible granules, microemulsion, aqueous emulsion, suspending agent.
5. according to claim 1 a kind of for preventing and kill off the Herbicidal combinations of corn field annual weed, it is characterized in that: be applicable to prevent and kill off corn field annual weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310634477.0A CN103704235A (en) | 2013-11-28 | 2013-11-28 | Weeding composition for control of annual weeds in corn field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310634477.0A CN103704235A (en) | 2013-11-28 | 2013-11-28 | Weeding composition for control of annual weeds in corn field |
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| Publication Number | Publication Date |
|---|---|
| CN103704235A true CN103704235A (en) | 2014-04-09 |
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| CN201310634477.0A Pending CN103704235A (en) | 2013-11-28 | 2013-11-28 | Weeding composition for control of annual weeds in corn field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108935458A (en) * | 2018-07-06 | 2018-12-07 | 南开大学 | A kind of corn field herbicide builder and the preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027982A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Synergistic herbicidal composition containing rimsulfuron and bromoxynil |
| CN102258045A (en) * | 2011-06-09 | 2011-11-30 | 陕西韦尔奇作物保护有限公司 | Weedicide composition containing rimsulfuron and bromoxynil octanoate |
| CN102326572A (en) * | 2011-06-18 | 2012-01-25 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing rimsulfuron and fluroxypyr |
-
2013
- 2013-11-28 CN CN201310634477.0A patent/CN103704235A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027982A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Synergistic herbicidal composition containing rimsulfuron and bromoxynil |
| CN102258045A (en) * | 2011-06-09 | 2011-11-30 | 陕西韦尔奇作物保护有限公司 | Weedicide composition containing rimsulfuron and bromoxynil octanoate |
| CN102326572A (en) * | 2011-06-18 | 2012-01-25 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing rimsulfuron and fluroxypyr |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108935458A (en) * | 2018-07-06 | 2018-12-07 | 南开大学 | A kind of corn field herbicide builder and the preparation method and application thereof |
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Application publication date: 20140409 |
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