CN104585204A - Herbicide for paddy fields - Google Patents
Herbicide for paddy fields Download PDFInfo
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- CN104585204A CN104585204A CN201410816836.9A CN201410816836A CN104585204A CN 104585204 A CN104585204 A CN 104585204A CN 201410816836 A CN201410816836 A CN 201410816836A CN 104585204 A CN104585204 A CN 104585204A
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- herbicide
- oxyfluorfen
- pyrazosulfuron
- paddy field
- mesotrione
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Abstract
The invention discloses an herbicide for paddy fields. The herbicide consists of active ingredients A, B and C as well as appropriate pesticide adjuvants, wherein the active ingredient A is pyrazosulfuron-ethyl, the ingredient B is oxyfluorfen, and the ingredient C is one of mesotrione and oxadiargyl; and the ratio of the active ingredients A to B to C in the herbicide is (1-20) to (1-20) to (1-20) in parts by weight. The herbicide disclosed by the invention can be prepared as one of a suspending agent, wettable powder or granules, and the herbicide can be used for preventing and controlling annual weeds in the paddy transplanting fields.
Description
Technical field
The present invention relates to a kind of rice transplanting field herbicidal.
Background technology
Chemical method weeding is one of Main Means of paddy field weed prevention and control, uses single kind compound herbicide easily to cause weeds to develop immunity to drugs.Meanwhile, grass when paddy field weed occurs is mutually complicated, and the polymorphic type such as grassy weed, broad leaved weed weeds are mixed raw, uses single kind compound herbicide all can show defect in a certain respect and limitation, can not solve farmland weed completely.Variety classes compound herbicide combines, and can expand herbicide spectrum, promote actual effect, delays herbicide resistance, time and labour saving advantage.
Pyrazosulfuron (pyrazosulfuron-ethyl), sulfonylurea optional water field herbicidal, can spread rapidly in water, be transmitted in plant body after the root absorption of weeds, the synthesis of hindered aminoacid, promptly suppress the growth of weeds leaves and stems and the stretching, extension of root, then completely withered.
Oxyfluorfen (oxyfluorfen), belonging to contact killing type weed killer herbicide, playing herbicide effect when there being light.Enter in plant corpus mainly through coleoptile, mesocotyl, less through root absorption, and have denier upwards to be transported by root to enter leaf portion.Before bud and after bud, application effect is best in early days, comparatively wide to the weeds herbicidal spectrum of seed germination, broad leaved weed, nutgrass flatsedge and barnyard grass can be prevented and kill off, but inhibitory action is only had to perennial weed, in paddy field, apply after in water layer in 24 hours, be deposited in soil table, water-soluble extremely low, mobility is less, be adsorbed in 0-3 centimetre of topsoil after dispenser very soon, not easily move vertically downward, become carbonic acid gas by the microbial decomposition in soil in three weeks, in soil, the half life period is about 30 days.
Mesotrione (mesotrione), suppress the activity of PHPPA dioxygenase (HPPD), amino acid Lip river propylhomoserin can be converted into plastoquinone by HPPD.Plastoquinone is the co-factor of phytoene desaturase, it is the key enzyme of herxheimer-liked reaction, mesotrione 3-5 days implants meristematic tissue are used to occur that yellow symptom causes withered spot thereupon, throughout whole strain plant after fortnight, there is faintly acid, in inoic acid soil, can tightly be adsorbed on organic substance; In neutrality or basic soil, with not easily absorbed anionic form existence.
Bing Que Evil humulone (oxadiargyl), is selectivity broad-spectrum herbicide, is contacted by weeds young shoot or seedling with medicament, absorb and cause effect.Weeds from rudiment to the 2-3 leaf phase all to this susceptibility sense, best with weeds budding period pesticide supplying effect, decline with weeds effect of growing up, after the application of paddy field, liquid is very fast in water surface diffusion, and rapidly by adsorption by soil, in soil, metabolism is comparatively slow, and the half life period is 2-6 month.
By the screening of different pesticide species compounded formula, select outstanding formula and effectively can improve actual control efficiency to disease, worm, crop smothering, reduce dosage, reduce costs, delaying disease, worm, the drug-fast generation of crop smothering, is the important means of agriculturally disease, worm, the crop smothering comprehensive regulation.The compounded formula screening of the present inventor to pyrazosulfuron, Oxyfluorfen, mesotrione and Bing Que Evil humulone conducts in-depth research, find that (A) pyrazosulfuron, (B) Oxyfluorfen and (C) mesotrione or Bing Que Evil humulone are wherein a kind of, be combined within the scope of certain compound proportion and have synergy or summation action to paddy field annual weed, after further study, the present invention is completed.
Not yet find at present the relevant report of (A) pyrazosulfuron, (B) Oxyfluorfen and (C) mesotrione or Bing Que Evil humulone wherein a kind of combination.
Summary of the invention
The object of the present invention is to provide a kind of weed killer herbicide that there is synergistic function, expand the transplanted rice field that herbicide is composed, use cost is low, control efficiency is good.
The technical scheme realizing the object of the invention is: a kind of herbicide for paddy field, be made up of effective constituents A, B, C and suitable insecticides adjuvant, wherein effective constituents A is pyrazosulfuron, B is Oxyfluorfen, C is mesotrione or one in Bing Que Evil humulone, and effective constituents A, B, C ratio of weight and number is in the composition 1 ~ 20:1 ~ 20:1 ~ 20.
Described Herbicidal combinations according to well known to a person skilled in the art method, can be selected suitable pesticidal preparations auxiliary element, can be processed into the application forms that the applicable agricultural productions such as suspending agent, wetting powder, granule use.
The auxiliary element that the present invention uses comprises wetting agent, stabilizing agent, dispersant, disintegrant, thickener, pH adjusting agent, defoamer, antifreezing agent, filler etc., be all auxiliary agent conventional in Pesticide formulation, concrete composition and consumption are determined by test according to recipe requirements.
Herbicidal combinations provided by the invention, is applicable to prevent and kill off transplanted rice field annual weed.
The frequency of administration of Herbicidal combinations provided by the 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.
Product described in the invention can the form of finished product preparation provide, and namely in composition, each material mixes, and the composition of composition also can the form of single dose provide, and directly mixes in tank or bucket, be then diluted to required concentration before using.
Compared with prior art, the invention has the advantages that:
1, the combination of weed killer herbicide of the present invention three kinds of active ingredients, there is obvious Synergistic, use the control efficiency significantly improved weeds than single dose, expand herbicide spectrum, can once solve paddy field grassy weed, sedge weed and broad leaved weed prevent and treat problem.
2, reduce Pesticide use amount, decrease use cost, delay 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 1:35% pyrazosulfuron Oxyfluorfen Bing Que Evil humulone wetting powder.
Pyrazosulfuron 5%, Oxyfluorfen 15%, Bing Que Evil humulone 15%, lauryl sodium sulfate 8.7%, alkylphenol polyoxyethylene sulphate 6.5%, NNO 3.7%, kaolin supplies 100%.By above-mentioned mixing of materials, again through air-flow crushing after mechanical crushing, mix, 35% pyrazosulfuron Oxyfluorfen Bing Que Evil humulone wetting powder can be obtained.
Example of formulations 2:25% pyrazosulfuron Oxyfluorfen Bing Que Evil humulone suspending agent.
Pyrazosulfuron 10%, Oxyfluorfen 5%, Bing Que Evil humulone 10%, fatty acid ester sulphate 6.5%, neopelex 9.3%, CMC 3.2%, organosilicon 3%, water supplies 100%.By above-mentioned material after sand milling in high speed shear dispersion, sand mill, the high dispersive formed in non-water-medium, stable suspension system, can obtain 25% pyrazosulfuron Oxyfluorfen third alkynes Evil humulone suspending agent.
Example of formulations 3:2% pyrazosulfuron Oxyfluorfen mesotrione granule.
Pyrazosulfuron 0.8%, Oxyfluorfen 0.8%, mesotrione 0.4%, sodium alkyl sulfonate 6.2%, polycarboxylate 7%, amylodextrin 13%, clay complements to 100%.Above-mentioned active ingredient and auxiliary agent are mediated through mixing and water adding, uses Squeezinggranulator extrude and be shaped, afterwards by particle fluid-bed drying, screening, 2% pyrazosulfuron Oxyfluorfen mesotrione granule can be obtained.
Assays Example 1: field control effectiveness test.
Test period: spraying time on April 2nd, 2014, April 22 2013 control time
Test site: village is joined in Ren Shan town, Huizhou Huidong County five.
Application method: after rice transplanting 7 days, medicament mixes fertilizer and spreads fertilizer over the fields.
Reagent agent and consumption:
Process 1:35% pyrazosulfuron Oxyfluorfen Bing Que Evil humulone wetting powder (example of formulations 1), 667m
2effective ingredient consumption 4 grams.
Process 2:25% pyrazosulfuron Oxyfluorfen Bing Que Evil humulone suspending agent (example of formulations 2), 667m
2effective ingredient consumption 4 grams.
Process 3:2% pyrazosulfuron Oxyfluorfen mesotrione granule (example of formulations 3), 667m
2effective ingredient consumption 4 grams.
Process 4:10% pyrazosulfuron wetting powder, 667m
2effective ingredient consumption 2 grams.
Process 5:24% oxyfluorfen EC, 667m
2effective ingredient consumption 4 grams.
Process 6:80% Bing Que Evil humulone water dispersible granules, 667m
2effective ingredient consumption 5 grams.
Process 7:15% mesotrione suspending agent, 667m
2effective ingredient consumption 5 grams.
As can be seen from table 1 result of the test, 35% pyrazosulfuron Oxyfluorfen Bing Que Evil humulone wetting powder preventive effect 94.0%, 25% pyrazosulfuron Oxyfluorfen Bing Que Evil humulone suspending agent preventive effect 93.8%, 2% pyrazosulfuron Oxyfluorfen mesotrione granule preventive effect 92.0%, drug effect is obviously better than 10% pyrazosulfuron wetting powder preventive effect 68.0%, 24% oxyfluorfen EC preventive effect 76.6%, 80% Bing Que Evil humulone water dispersible granules preventive effect 83.9%, 15% mesotrione suspending agent preventive effect 78.8%, do not find to produce poisoning to paddy rice in pilot survey process simultaneously.
Table 1, each chemicals treatment prevent and kill off transplanted rice field annual weed statistical form result
Claims (4)
1. a herbicide for paddy field, it is characterized in that: effective constituents A, B, C and suitable insecticides adjuvant composition, wherein effective constituents A is pyrazosulfuron, B is Oxyfluorfen, C is mesotrione or one in Bing Que Evil humulone, and effective constituents A, B, C ratio of weight and number is in the composition 1 ~ 20:1 ~ 20:1 ~ 20.
2. a kind of herbicide for paddy field according to claim 1, is characterized in that: described weed killer herbicide also contains pesticidal preparations auxiliary element, to make the application forms of applicable agricultural use.
3. a kind of herbicide for paddy field according to claim 2, is characterized in that: its formulation is the one in suspending agent, wetting powder or granule.
4. a kind of herbicide for paddy field according to claim 1 is to prevent and kill off the application in transplanted rice field annual weed.
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| CN201410816836.9A CN104585204B (en) | 2014-12-24 | 2014-12-24 | A kind of herbicide for paddy field |
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| CN201410816836.9A CN104585204B (en) | 2014-12-24 | 2014-12-24 | A kind of herbicide for paddy field |
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| CN104585204A true CN104585204A (en) | 2015-05-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105265464A (en) * | 2015-11-04 | 2016-01-27 | 广东中迅农科股份有限公司 | Weeding composition containing pyrithiobac-sodium, oxyfluorfen and sulfonylurea herbicide |
| CN106489924A (en) * | 2016-08-31 | 2017-03-15 | 广东中迅农科股份有限公司 | Oil-suspending agent and preparation method thereof is dispersibled containing Oxadiargyl and Oxyfluorfen |
| CN114680108A (en) * | 2022-05-07 | 2022-07-01 | 中国水稻研究所 | Granule for improving control effect of herbicide, preparation method and application thereof |
| US20230000079A1 (en) * | 2021-06-17 | 2023-01-05 | Generic Crop Science LLC | Combination comprising a triketone herbicide and a diphenylether herbicide, and a method for making and using the combination |
Citations (4)
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| DE19834629A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
| CN101433206A (en) * | 2008-12-12 | 2009-05-20 | 杨卫东 | Herbicidal composition |
| CN103141497A (en) * | 2013-03-18 | 2013-06-12 | 安徽科立华化工有限公司 | Oxadiargyl and pyrazosulfuron compound oil suspending agent and preparation method thereof |
| CN104068037A (en) * | 2014-07-15 | 2014-10-01 | 哈尔滨富利生化科技发展有限公司 | Weeding composition for paddy fields |
-
2014
- 2014-12-24 CN CN201410816836.9A patent/CN104585204B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19834629A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
| CN101433206A (en) * | 2008-12-12 | 2009-05-20 | 杨卫东 | Herbicidal composition |
| CN103141497A (en) * | 2013-03-18 | 2013-06-12 | 安徽科立华化工有限公司 | Oxadiargyl and pyrazosulfuron compound oil suspending agent and preparation method thereof |
| CN104068037A (en) * | 2014-07-15 | 2014-10-01 | 哈尔滨富利生化科技发展有限公司 | Weeding composition for paddy fields |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105265464A (en) * | 2015-11-04 | 2016-01-27 | 广东中迅农科股份有限公司 | Weeding composition containing pyrithiobac-sodium, oxyfluorfen and sulfonylurea herbicide |
| CN106489924A (en) * | 2016-08-31 | 2017-03-15 | 广东中迅农科股份有限公司 | Oil-suspending agent and preparation method thereof is dispersibled containing Oxadiargyl and Oxyfluorfen |
| US20230000079A1 (en) * | 2021-06-17 | 2023-01-05 | Generic Crop Science LLC | Combination comprising a triketone herbicide and a diphenylether herbicide, and a method for making and using the combination |
| CN114680108A (en) * | 2022-05-07 | 2022-07-01 | 中国水稻研究所 | Granule for improving control effect of herbicide, preparation method and application thereof |
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| CN104585204B (en) | 2018-02-06 |
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