CN104430367A - Herbicidal composition for rapeseed field - Google Patents
Herbicidal composition for rapeseed field Download PDFInfo
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- CN104430367A CN104430367A CN201410709780.7A CN201410709780A CN104430367A CN 104430367 A CN104430367 A CN 104430367A CN 201410709780 A CN201410709780 A CN 201410709780A CN 104430367 A CN104430367 A CN 104430367A
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- picloram
- haloxyfop
- propyl
- methyl
- suspending agent
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Abstract
The invention discloses a herbicidal composition for a rapeseed field. The herbicidal composition comprises effective components A, B and C and an appropriate pesticide adjuvant, wherein the effective component A is picloram; the effective component B is pyribambenz-propyl; the effective component C is haloxyfop-R-methyl; the weight percentages of the effective components A, B and C in the composition are respectively 1%-30%; and the rest is the pesticide adjuvant. According to the requirements of application, the herbicidal composition disclosed by the invention can be prepared into one of a suspending agent, a dispersible oil suspending agent, wettable powder and water dispersible granules, and is used for preventing and killing annual weeds of the rapeseed field. The effect of the composition for preventing and killing the annual weeds of the rapeseed field is obviously superior to that of each single dosage; the dosage is reduced; and the drug resistance of the weeds is delayed.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations containing picloram, propyl-ester nitorfen and haloxyfop-r-methyl, for Controlling Weeds in Rape Fields field annual weed.
Background technology
Chemical method weeding is agriculturally one of Main Means controlling weeds.In recent years, because some weed killer herbicide kind large area are used alone, a lot of weeds have been caused to develop immunity to drugs.Meanwhile, grass when weeds occur is mutually complicated, and multiple weeds are mixed raw, and single variety weed killer herbicide uses can not solve farmland weed, all can show defect in a certain respect and limitation.Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.
Picloram is hormone herbicide, readily through leaf and root absorption and conduction, can mainly act on metabolism of nucleic acid, and make chloroplast structure and other organelle developmental deformities, interferencing protein synthesizes, and acts on meristematic tissue activity etc., finally causes Plant death.
Propyl-ester nitorfen belongs to the new herbicides of miazines, is absorbed by root, bud, stem, leaf and is conducted in plant corpus.Be mainly used in Rapeseed Field, annual gramineous weed and part broad leaved weed can be prevented and kill off, as: amur foxtail, crack rice grass, chickweed etc.
Haloxyfop-r-methyl is a kind of selective herbicide, prevents and kill off various grassy weed for various broad leaf crop Tanaka, can be absorbed very soon, and conduct to whole plant by the blade of grassy weed, suppresses the growth of plant meristematic tissue, thus kills weeds.Lasting period is long, after emerging, all have good preventive effect to the annual of initial stage of tillering, ear and perennial grassy weed.
Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.Being screened by formulation of pesticide, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The recipe determination of the present inventor to picloram, propyl-ester nitorfen and haloxyfop-r-methyl conducts in-depth research, find that picloram, propyl-ester nitorfen and haloxyfop-r-methyl carry out mixture, synergistic effect is had to Rapeseed Field annual weed in certain mixed ratio scope, after further study, the present invention is completed.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting are good and the lasting period is long, are conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of the present invention is to provide and is used for preventing and kill off farmland weed by this Herbicidal combinations, is particularly useful for Controlling Weeds in Rape Fields field annual weed etc.
Technical scheme of the present invention is: a kind of herbicide composition for rape field, be made up of effective constituents A, B, C and suitable insecticides adjuvant, wherein effective constituents A is picloram, B is propyl-ester nitorfen, C is haloxyfop-r-methyl, effective constituents A, B, C percentage by weight is in the composition respectively 1% ~ 30%, 1% ~ 30%, 1% ~ 30%, and all the other are insecticides adjuvant.
Described Herbicidal combinations those skilled in the art according to known method, can select suitable pesticidal preparations auxiliary element, excipient suspending agent, dispersible oil-suspending agent, wetting powder or water dispersible granules etc. and are applicable to the formulation that agriculturally uses.
The processing technology of the various preparation of Herbicidal combinations of the present invention is prior art, can change to some extent according to different situations.
The insecticides adjuvant used in Herbicidal combinations of the present invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, disintegrant, binding agent, thickener, pH adjusting agent, defoamer, antifreezing agent, filler, carrier etc., and to be of value to active ingredient stable and play the known substance of drug effect in the formulation, be all various compositions that are conventional in pesticidal preparations or permission use, concrete composition and consumption are determined by test according to recipe requirements.
Composition pesticide provided by the invention, should use in Rapeseed Field annual weed 3 ~ 5 leaf phase in use.
Composition pesticide provided by the invention, usually adopts cauline leaf spray method to use, also can adopt other operation techniques agriculturally applied as required.The frequency of administration of Herbicidal combinations of the present invention and amount of application change with crops, weeds, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
Compared with prior art, the invention has the advantages that:
1, the present invention has obvious synergistic function, uses than single dose or binary built the control efficiency significantly improved weeds, expands herbicide spectrum, decreases Pesticide use amount, reduce use cost, alleviate the pollution to environment.
2, three kinds of active ingredient mechanisms of action are different, can delay the generation of herbicide resistance.
Embodiment
In order to understand essence of the present invention better; below in conjunction with embodiment, content of the present invention is described further; but can not limitation of the present invention be considered as; the following stated is only for explaining the present invention; for not departing from amendment that the present invention's spirit and principle make, replacement or improvement, all belong to the scope of protection of present invention.
Example of formulations one: 30% picloram propyl-ester nitorfen haloxyfop-r-methyl suspending agent.
Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, the obtained 30% picloram propyl-ester nitorfen haloxyfop-r-methyl suspending agent of allotment after high shear mixing.
Example of formulations two: 24% picloram propyl-ester nitorfen haloxyfop-r-methyl dispersibles oil-suspending agent.
By above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve uniformly oil phase; Under high velocity agitation, the obtained 24% picloram propyl-ester nitorfen haloxyfop-r-methyl of mixing dispersibles oil-suspending agent.
Example of formulations three: 42% picloram propyl-ester nitorfen haloxyfop-r-methyl wetting powder.
Mix entering in blender after above-mentioned formula in proportion coarse crushing, more namely obtain 42% picloram propyl-ester nitorfen haloxyfop-r-methyl wetting powder after air-flow crushing.
Example of formulations four: 42% picloram propyl-ester nitorfen effective haloxyfop water dispersible granule.
By above-mentioned formula dry pulverization process, granulation, drying, the obtained 42% picloram propyl-ester nitorfen effective haloxyfop water dispersible granule of screening preparation in proportion.
Field control effectiveness test embodiment one: Controlling Weeds in Rape Fields field annual weed field control effectiveness test.
Reagent agent and dispenser dosage:
(1) 30% picloram propyl-ester nitorfen haloxyfop-r-methyl suspending agent (10% picloram: 5% propyl-ester nitorfen: 15% haloxyfop-r-methyl), per hectare active ingredient 73 grams (1#).
(2) 24% picloram propyl-ester nitorfen haloxyfop-r-methyls dispersible oil-suspending agent (8% picloram: 4% propyl-ester nitorfen: 12% haloxyfop-r-methyl), per hectare active ingredient 73 grams (2#).
(3) 42% picloram propyl-ester nitorfen haloxyfop-r-methyl wetting powders (14% picloram: 7% propyl-ester nitorfen: 21% haloxyfop-r-methyl), per hectare active ingredient 73 grams (3#).
(4) 42% picloram propyl-ester nitorfen effective haloxyfop water dispersible granules (14% picloram: 7% propyl-ester nitorfen: 21% haloxyfop-r-methyl), per hectare active ingredient 73 grams (4#).
Contrast medicament and dispenser dosage:
(5) 24% picloram aquas, per hectare active ingredient 27 grams (5#).
(6) 10% propyl-ester nitorfen missible oil, per hectare active ingredient 14 grams (6#).
(7) 15% haloxyfop-r-methyl missible oil, per hectare active ingredient 41 grams (7#).
Test site: bamboo plantation village, Ren Shan town, Huizhou Huidong County
Subjects and method:
Barnyard grass, amur foxtail, chickweed, Monochoria vaginalis, field thistle, cauline leaf is sprayed.
Result of the test: in table 1, as can be seen from the test results: after medicine 22 days, the average preventive effect of Herbicidal combinations of the present invention to Rapeseed Field annual weed reaches more than 81.6%, significantly better than the single dose of contrast, synergistic effect is remarkable, and expanding herbicidal spectrum, quick-acting and lasting period are obviously better than single dose.
Table 1, Controlling Weeds in Rape Fields field annual weed field control effectiveness test result (after medicine 22 days)
Claims (3)
1. a herbicide composition for rape field, it is characterized in that: be made up of effective constituents A, B, C and suitable insecticides adjuvant, wherein effective constituents A is picloram, B is propyl-ester nitorfen, C is haloxyfop-r-methyl, effective constituents A, B, C percentage by weight is in the composition respectively 1% ~ 30%, 1% ~ 30%, 1% ~ 30%, and all the other are insecticides adjuvant.
2. a kind of herbicide composition for rape field according to claim 1, is characterized in that: the formulation of described Herbicidal combinations can be suspending agent, the one dispersibled in oil-suspending agent, wetting powder or water dispersible granules.
3. a kind of herbicide composition for rape field according to claim 1 and 2, is characterized in that: be applicable to Controlling Weeds in Rape Fields field annual weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709780.7A CN104430367A (en) | 2014-11-27 | 2014-11-27 | Herbicidal composition for rapeseed field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709780.7A CN104430367A (en) | 2014-11-27 | 2014-11-27 | Herbicidal composition for rapeseed field |
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| CN104430367A true CN104430367A (en) | 2015-03-25 |
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| CN201410709780.7A Pending CN104430367A (en) | 2014-11-27 | 2014-11-27 | Herbicidal composition for rapeseed field |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513321A (en) * | 2003-07-04 | 2004-07-21 | ƽ | Herbicide composition used for rape field contg. propyl-ester nitorfen and iso-propyl-ester nitrofen |
| WO2012008366A1 (en) * | 2010-07-14 | 2012-01-19 | クミアイ化学工業株式会社 | Agent for increasing sugar concentration in sugarcane, and method of promoting sugarcane ripening using same |
| CN103004771A (en) * | 2012-11-13 | 2013-04-03 | 中化蓝天集团有限公司 | Active composition and herbicide thereof for preventing and eliminating weeds in rape farmland |
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2014
- 2014-11-27 CN CN201410709780.7A patent/CN104430367A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513321A (en) * | 2003-07-04 | 2004-07-21 | ƽ | Herbicide composition used for rape field contg. propyl-ester nitorfen and iso-propyl-ester nitrofen |
| WO2012008366A1 (en) * | 2010-07-14 | 2012-01-19 | クミアイ化学工業株式会社 | Agent for increasing sugar concentration in sugarcane, and method of promoting sugarcane ripening using same |
| CN103004771A (en) * | 2012-11-13 | 2013-04-03 | 中化蓝天集团有限公司 | Active composition and herbicide thereof for preventing and eliminating weeds in rape farmland |
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Application publication date: 20150325 |
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