CN103766366A - Corn field weeding composition with synergistic effect - Google Patents
Corn field weeding composition with synergistic effect Download PDFInfo
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- CN103766366A CN103766366A CN201310666917.0A CN201310666917A CN103766366A CN 103766366 A CN103766366 A CN 103766366A CN 201310666917 A CN201310666917 A CN 201310666917A CN 103766366 A CN103766366 A CN 103766366A
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- weeding composition
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Abstract
The invention relates to a corn field weeding composition with synergistic effect, which is composed of effective components A, B and C and proper amounts of pesticide adjuvants, wherein the effective component A is halosulfuron-methyl, B is nicosulfuron or rimsulfuron, and C is bromoxynil or bromoxynil octanoate. The weeding composition is reasonable in components, has synergistic effect, overcomes the defects of incomplete weeding spectrum or lower activity for some weed and slow effect taking due to use of single weedicide, and lowers the risk in resistance due to use of single or two-element compounds. The weeding composition has obviously better preventing and treating effects than a single agent, lowers the consumption of the pesticide, and reduces the adverse effect of the pesticide on the ecological environment; and the weeding composition has important meanings for comprehensive treatment of weed resistance, and has huge economic benefit and social benefit.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of cornfield weeding composition with synergistic function.
Background technology
Halosulfuronmethyl is absorption agricultural compound in sulfonylurea, can be plant stem-leaf and root absorption, and weeds first stop growing then withered, are mainly used in preventing and kill off annual broadleaf weed and sedge weed, and the rhizome of nutgrass flatsedge is had to special efficacy.
Bromoxynil octanoate is that after selectivity seedling, cauline leaf is processed contact killing type weed killer herbicide, mainly absorbed by blade, 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.
Nicosulfuron is absorption agricultural compound in sulfonylurea, can be weeds cauline leaf and root absorption, in plant corpus, conduct subsequently, cause sensitive plant growth retardation, cauline leaf chlorisis, withered gradually, generally death in 20-25 days, but time that need be longer to some perennial weed in the situation that temperature is lower.Be mainly used in preventing and kill off corn field annual gramineous weed and part broad leaved weed, sedge weed is also had to certain preventive effect, dispenser good drug efficacy before 4 leaf phases after bud, when seedling is large, dispenser drug effect declines.
Rimsulfuron is sulfonylurea herbicide, branched-chain amino acid synthetic inhibitor, selective post-emergence herbicide.Be used for preventing and kill off corn field annual or perennial grass family and broad leaved weed, as creeping thistle, iron shepherd's purse, the rhizome of nutgrass flatsedge, curly dock, johnson grass, wild oat, hemostasis eleusine indica, barnyard grass, Annual Ryegrass, piemarker, Amaranthus retroflexus, clearvers, corn poppy, chickweed.Especially good to early application after annual weed bud.
The inventor conducts in-depth research the mixture of halosulfuronmethyl, nicosulfuron or rimsulfuron, Brominal or bromoxynil octanoate, on the basis of a large amount of formula indoor screening tests and field medicine effect test, find that three's mixture has synergistic effect to lady's-grass, barnyard grass, the rhizome of nutgrass flatsedge, acalypha copperleaf, unit or two yuan of combinations improve weeding quick-acting, expand herbicide spectrum relatively, compared with prior art have novelty, creativeness and practicality.
Halosulfuronmethyl, nicosulfuron or rimsulfuron, Brominal or bromoxynil octanoate composite without relevant report, the present invention does not lose novelty.
The present invention is expanding on the basis of herbicide spectrum, relatively unit or two yuan of compositions are remarkable to corn field main weeds and resistant weed lady's-grass, barnyard grass, the rhizome of nutgrass flatsedge, acalypha copperleaf synergy, and then significantly reduced agricultural chemicals usage amount, reduce use cost and reduce carrying capacity of environment creative.
The present invention possesses the prospect of industrial applications, can excipient be that agricultural goes up conventional formulation as oil-suspending agent, suspending agent, water dispersible granules, wetting powder etc., 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, a kind of Herbicidal combinations that can effectively administer corn field weed is provided.Because said composition has significant synergies to corn field main weeds and resistant weed lady's-grass, barnyard grass, the rhizome of nutgrass flatsedge, acalypha copperleaf; obviously reduce use cost; reduce agricultural chemicals usage amount and significantly reduce carrying capacity of environment simultaneously, there is positive effect for the corn field weed comprehensive regulation and environmental protection.
Technical scheme of the present invention is: a kind of cornfield weeding composition with synergistic function, and it comprises three kinds of active ingredients: effective constituents A, B, C, wherein active ingredient is that A is halosulfuronmethyl; B is the one in nicosulfuron or rimsulfuron; C is Brominal or bromoxynil octanoate; The weight percentage of effective constituents A is 0.1%～20%, and the weight percentage of active ingredient B is 0.1%～30%, and the weight percentage of active ingredient C is 0.1%～40%, and surplus is the upper acceptable insecticides adjuvant of agricultural.
Described Herbicidal combinations can be according to well known to a person skilled in the art method, the application forms of the applicable agricultural uses such as preparation wetting powder, water dispersible granules, oil-suspending agent, microemulsion, suspending agent, suspension emulsion, aqueous emulsion.
Described Herbicidal combinations also contains acceptable insecticides adjuvant in the required agricultural of preparation pesticidal preparations, be 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, be known substance, various auxiliary agents conventional in pesticidal preparations, can change to some extent according to different situations, be not particularly limited.
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.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, shows obvious synergistic effect to corn field weed, and the control efficiency of composition is significantly improved than single dose, reduce the using dosage of agricultural chemicals, reduce medication number of times, reduced drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of three kinds of active ingredients, has expanded herbicidal spectrum, and a drug can solve various weeds problems, has made up defect and limitation when single dose is used.
3, Herbicidal combinations provided by the invention, active ingredient mechanism of action is different, can overcome long-term single use and easily produce the shortcoming of resistance, extends the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4, Herbicidal combinations provided by the invention, rapidly, the lasting period is long in drug effect performance, and use cost is low, easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
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 1: halosulfuronmethyl, nicosulfuron, bromoxynil octanoate and the composite Toxicity Determination to lady's-grass, barnyard grass, the rhizome of nutgrass flatsedge, acalypha copperleaf thereof
Table one, halosulfuronmethyl, nicosulfuron, bromoxynil octanoate and the composite Toxicity Determination result to lady's-grass thereof.
Table two, halosulfuronmethyl, nicosulfuron, bromoxynil octanoate and the composite Toxicity Determination result to barnyard grass thereof.
Table three, halosulfuronmethyl, nicosulfuron, bromoxynil octanoate and the composite Toxicity Determination result to the rhizome of nutgrass flatsedge thereof.
Table four, halosulfuronmethyl, nicosulfuron, bromoxynil octanoate and the composite Toxicity Determination result to acalypha copperleaf thereof.
Evaluate weed killer herbicide associated form (NY/T 1155.7-2006) according to Colby method, its formula is as follows:
In formula: A is halosulfuronmethyl fresh weight inhibiting rate to target weeds when alone with certain dosage;
B is nicosulfuron 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 of mixture;
E
0theoretical value to target weeds fresh weight inhibiting rate during for halosulfuronmethyl, nicosulfuron, three kinds of pharmacy mix of bromoxynil octanoate;
It when E is halosulfuronmethyl, nicosulfuron, three kinds of pharmacy mix of bromoxynil octanoate, is the measured value of contrast to target weeds fresh weight inhibiting rate.
Evaluation criterion: work as E
0when-E > 10%, be expressed as synergistic effect; As-10%≤E
0when-E≤10%, show as summation action; Work as E
0when-E <-10%, show as antagonism.
Evaluate weed killer herbicide associated form according to Colby method, table one, two, three, four data show, halosulfuronmethyl, nicosulfuron, bromoxynil octanoate triple combination are remarkable to lady's-grass, barnyard grass, the rhizome of nutgrass flatsedge, acalypha copperleaf synergistic effect, E
0-E value is all greater than 20%.
Embodiment 2: field control effectiveness test.
Table five, present composition field control effectiveness test result.
Known by test of pesticide effectiveness result, halosulfuronmethyl, nicosulfuron, bromoxynil octanoate ternary built excipient are under water dispersible granules, oil-suspending agent, suspending agent routine dose, after medicine 15 days to the preventive effect of lady's-grass, barnyard grass, the rhizome of nutgrass flatsedge, field thistle, field bindweed, acalypha copperleaf all more than 90%.
In sum, component of the present invention is reasonable, has remarkable synergistic effect, expands herbicide spectrum, and exploitation has good prospect for cornfield weeding.
Claims (4)
1. there is a cornfield weeding composition for synergistic function, it is characterized in that comprising three kinds of active ingredients: effective constituents A, B, C, wherein active ingredient is that A is halosulfuronmethyl; B is the one in nicosulfuron or rimsulfuron; C is Brominal or bromoxynil octanoate.
2. a kind of cornfield weeding composition with synergistic function according to claim 1, it is characterized in that: the weight percentage of effective constituents A is 0.1%～20%, the weight percentage of active ingredient B is 0.1%～30%, the weight percentage of active ingredient C is 0.1%～40%, and surplus is the upper acceptable insecticides adjuvant of agricultural.
3. a kind of cornfield weeding composition with synergistic function according to claim 1 and 2, is characterized in that: the formulation of described Herbicidal combinations can be the one in wetting powder, water dispersible granules, oil-suspending agent, microemulsion, suspending agent, suspension emulsion, aqueous emulsion.
4. according to a kind of cornfield weeding composition with synergistic function described in claim 1-3 any one, it is characterized in that: be applicable to prevent and kill off corn field annual weed.
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| CN201310666917.0A CN103766366A (en) | 2013-12-09 | 2013-12-09 | Corn field weeding composition with synergistic effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310666917.0A CN103766366A (en) | 2013-12-09 | 2013-12-09 | Corn field weeding composition with synergistic effect |
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| CN103766366A true CN103766366A (en) | 2014-05-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105409994A (en) * | 2015-11-18 | 2016-03-23 | 广东中迅农科股份有限公司 | Herbicide for corn field |
| CN112120037A (en) * | 2020-10-15 | 2020-12-25 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Weeding composition containing rimsulfuron, halosulfuron-methyl and flufenacet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887088A (en) * | 2006-08-09 | 2007-01-03 | 江苏辉丰农化股份有限公司 | Herbicide |
| CN101433205A (en) * | 2007-11-15 | 2009-05-20 | 中国中化集团公司 | Herbicide composition |
| CN103300039A (en) * | 2013-07-12 | 2013-09-18 | 安徽丰乐农化有限责任公司 | Compounded herbicide for corn seedlings of postemergence |
-
2013
- 2013-12-09 CN CN201310666917.0A patent/CN103766366A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887088A (en) * | 2006-08-09 | 2007-01-03 | 江苏辉丰农化股份有限公司 | Herbicide |
| CN101433205A (en) * | 2007-11-15 | 2009-05-20 | 中国中化集团公司 | Herbicide composition |
| CN103300039A (en) * | 2013-07-12 | 2013-09-18 | 安徽丰乐农化有限责任公司 | Compounded herbicide for corn seedlings of postemergence |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国农业部: "《中华人民共和国农业行业标准》", 10 July 2006 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105409994A (en) * | 2015-11-18 | 2016-03-23 | 广东中迅农科股份有限公司 | Herbicide for corn field |
| CN112120037A (en) * | 2020-10-15 | 2020-12-25 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Weeding composition containing rimsulfuron, halosulfuron-methyl and flufenacet |
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