CN103329918A - Weeding composition containing pyribenzoxim and pyrazosulfuron - Google Patents
Weeding composition containing pyribenzoxim and pyrazosulfuron Download PDFInfo
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- CN103329918A CN103329918A CN2013102186890A CN201310218689A CN103329918A CN 103329918 A CN103329918 A CN 103329918A CN 2013102186890 A CN2013102186890 A CN 2013102186890A CN 201310218689 A CN201310218689 A CN 201310218689A CN 103329918 A CN103329918 A CN 103329918A
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- pyrazosulfuron
- pyribenzoxim
- weed
- herbicidal combinations
- weeding
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Abstract
The invention relates to a weeding composition containing pyribenzoxim and pyrazosulfuron. The effective constituents are pyribenzoxim and pyrazosulfuron. The mass fraction ratio of pyribenzoxim to pyrazosulfuron is 1:20-20:1, and the preferred mass fraction ratio is 5:1-1:5. Compared with single usage of the pyribenzoxim or the pyrazosulfuron, the weeding composition not only can raise the weeding effects obviously and enlarge the weed control spectrum, but also can reduce the resistance risks caused by single usage. The weeding composition can reduce the usage frequency and the control cost, has good environmental compatibility, and is an ideal new-type composition for controlling weeds in paddy fields.
Description
Technical field
The present invention relates to a kind of agricultural chemicals Herbicidal combinations, specifically a kind of is the Herbicidal combinations of active ingredient with pyribenzoxim and pyrazosulfuron, is applied to the control of paddy field annual weed.
Background technology
Paddy rice is one of main cereal crops of China, and the weeds in paddy field kind is a lot, and national rice district has kind surplus the weeds 200 approximately, wherein generally take place, endanger serious main weeds have 40 approximately surplus kind, therefore, paddy field weeding is a great problem on producing.The chemical method weeding is the main means of control weeds.But in recent years, because some weed killer herbicide kind large tracts of land are used separately, caused a lot of weeds to develop immunity to drugs.Therefore, be badly in need of the pharmaceutical preparations of the agent for removing grass in paddy field of efficient, low toxicity, economy, safety.
Pyribenzoxim is a kind of efficient selective pyrimidine ether weed killer herbicide, and its mechanism of action is the inhibitor of acetolactate synthestase (ALS).The barnyard grass grass in transplanted rice field, live field, annual nutgrass flatsedge and broad leaved weed there is preventive effect preferably.Can prevent and kill off weeds such as barnyard grass grass, angustifolia arrowhead herb, Monochoria korsakowii, pipewort, Brittle Falsepimpernel Herb, bur beggar-ticks, firefly Lin, Japanese Fischer grass, pondweed, four leaf duckweeds, Monochoria vaginalis, mexicana, rhizoma alismatis, needle spikesedge herb, difformed galingale herb, Herba Cyperi Glomerati, moleplant seed.This medicament weeding speed is slower, can suppress weed growth after the dispenser, and is withered after 2 weeks.
Pyrazosulfuron is a kind of sulfonylurea herbicide, for selectivity inner sucting conduction type weed killer herbicide, mainly is absorbed by root system, shifts rapidly in weeds plant body, suppresses growth, and weeds are dead gradually.Can be used for preventing and kill off annual and perennial broadleaf weed and sedge weed, as different in nature nutgrass flatsedge, Herba Cyperi Glomerati, firefly Lin, Monochoria vaginalis, Chinese celery, mexicana, angustifolia arrowhead herb, pondweed, blue or green duckweed, Eclipta prostrata.To rice field main grassy weed barnyard grass grass and moleplant seed weak effect.Paddy rice can be decomposed this medicament, to almost not influence of paddy growth.
The inventor furthers investigate being mixed of pyribenzoxim and pyrazosulfuron, on the basis of a large amount of indoor prescription screenings and field medicine effect test, find that pyribenzoxim and pyrazosulfuron are mixed, in certain mixed ratio scope, paddy field weed is shown obvious role in synergism, after further study, finished the present invention.
The unmanned report still that is mixed at present of pyribenzoxim and pyrazosulfuron.
Summary of the invention
The objective of the invention is to solve in the prior art weeds in paddy field develop immunity to drugs problem and the relatively poor problem of the single use preventive effect of single agent, a kind of efficient, wide spectrum, economy, safety are provided, be conducive to the Herbicidal combinations of the paddy field weed comprehensive regulation.
Technical scheme of the present invention is: for achieving the above object, the invention provides a kind of Herbicidal combinations that contains pyribenzoxim and pyrazosulfuron, active ingredient is pyribenzoxim and pyrazosulfuron, the ratio of quality and the number of copies of pyribenzoxim and pyrazosulfuron is 1:20～20:1, and the preferred mass portion rate is 5:1～1:5.
Herbicidal combinations of the present invention can be processed into the application forms that uses in the suitable agricultural productions such as oil-suspending agent, wetting powder and water-dispersible granules according to well known to a person skilled in the art method.
The auxiliary element that uses in the present composition application forms comprises that wetting agent, disintegrant, dispersant, thickener, filler etc. are of value to active ingredient stablizes and bring into play drug effect in preparation known substance, all be the various compositions of using or allow use in the pesticidal preparations always, concrete composition and consumption are determined by testing according to the prescription requirement.
The frequency of administration of the present composition and amount of application have small variations with factors such as weed growth situation, weather condition variations, can reach the purpose of effective control by using suitable spraying times and dosage.
Compared with prior art, the invention has the advantages that:
1, pyribenzoxim and pyrazosulfuron compositely have synergistic function, have obviously improved control efficiency to weeds in paddy field than the independent use of single agent;
2, two kinds of active ingredients of pyribenzoxim and pyrazosulfuron are composite, reduced the agricultural chemicals usage amount, reduced resistance risk, reduced use cost, Environmental compatibility is good;
3, two kinds of active ingredients of pyribenzoxim and pyrazosulfuron are composite, enlarged to kill the careless pyrazosulfuron list defective of the rice field grassy weed being prevented heterodyne of having composed, overcome.
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 be considered as limitation of the present invention.
(1) formulation embodiment.
Effective constituents A adopts the former medicine of 95% pyribenzoxim among following each embodiment, and active ingredient B adopts the former medicine of 98% pyrazosulfuron, and each component percentage composition is weight percentage.
Embodiment 1: described Herbicidal combinations is oil-suspending agent, and each component percentage composition is respectively:
Effective constituents A 1～30%,
Active ingredient B 1～30%,
Dispersant 2～10%,
Wetting agent 2～10%,
Thickener 0.1～2%,
The filler surplus.
The concrete operations step is: effective constituents A and B, other auxiliary agent and filler are mixed, in stirred tank, stir, then through prompt streaming mixer, shearing is dispersed to no visible solid particle, in ball crusher, grind 2～3h at last, make a diameter all below 5 μ m, can make Herbicidal combinations oil-suspending agent preparation of the present invention.
Embodiment 2: described Herbicidal combinations is wetting powder, and each component percentage composition is respectively:
Effective constituents A 1～30%,
Active ingredient B 1～30%,
Dispersant 2～10%,
Wetting agent 1～5%,
The filler surplus.
The concrete operations step is: effective constituents A and B, other auxiliary agent and filler are mixed, fully stir in stirred tank, mix after airslide disintegrating mill is pulverized, can make Herbicidal combinations wettable powder agent formulation of the present invention.
Embodiment 3: described Herbicidal combinations is water dispersible granules, and each component percentage composition is respectively:
Effective constituents A 1～30%,
Active ingredient B 1～30%,
Dispersant 5～15%,
Wetting agent 1～10%,
Disintegrant 1～5%,
The filler surplus.
The concrete operations step is: effective constituents A and B, other auxiliary agent and filler are mixed, pulverize with micro jet, after after mediating, carrying out granulation, drying, screening in the adding fluidized bed prilling dryer, can make Herbicidal combinations water-dispersible grain agent formulation of the present invention.
Auxiliary agent is selected from the following stated in the above formulation.
Wetting agent can be one or more the mixing in aerosol-OT salt, sodium butylnaphthalenesulfonate, fatty acid amide N methyl taurine sodium salt, lignosulfonates, alkylphenol polyoxyethylene phosphate, petroleum sodium sulfonate, fatty acid ester sulphate, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether, the withered powder of tea, spaonin powder, the soapberry powder etc.
Disintegrant can be one or more the mixing in sodium bicarbonate, magnesium chloride, aluminium chloride, sodium chloride, urea, ammonium sulfate, the bentonite etc.
Dispersant can be one or more the mixing in sodium methylene bis-naphthalene sulfonate, sodium lignin sulfonate, fatty acid amide N methyl taurine sodium salt, alkylphenol polyoxyethylene sulphate, lignosulfite, fatty acid ester sulphate, alkylphenol polyoxyethylene, the fatty alcohol-polyoxyethylene ether etc.
Thickener can be one or more the mixing in polyvinyl alcohol, polyvinyl acetate, xanthans, gelatin, gum Arabic, polyvinylpyrrolidone, aluminium-magnesium silicate, phenolic resins, CMC, the sodium alginate etc.
Carrier can be one or more the mixing in precipitated calcium carbonate, potter's clay, kaolin, diatomite, bentonite, white carbon, clay, talcum powder, quartz sand, exquisite soybean oil, corn oil, rapeseed oil, turpentine oil, methyl oleate, cocoa butter, palm oil, the senior fatty hydrocarbon ils of methyl naphthalene.
(2) biologicall test embodiment.
Biologicall test embodiment 1:8% pyribenzoxim pyrazosulfuron oil-suspending agent (6% pyribenzoxim; 2% pyrazosulfuron) prevents and kill off the rice direct seeding field annual weed.
Test selects moleplant seed, barnyard grass grass and the more rice direct seeding field of broad leaved weed to carry out.4 processing are established in test altogether, 3 repetitions are established in every processing, handling 1 is 8% pyribenzoxim pyrazosulfuron oil-suspending agent, handling 2 is single agent 10% pyrazosulfuron wetting powder, handling 3 is single agent 5% pyribenzoxim missible oil, handle 4 and be contrast (not weeding of not dispenser), number of weeds amount and preventive effect are respectively handled in statistics and contrast after 15 days, and result of the test sees Table 1.
Table 1,8% pyribenzoxim pyrazosulfuron oil-suspending agent are prevented and kill off rice direct seeding field annual weed field control effectiveness test result.
Behind the medicine 15 days as can be seen from Table 1,8% pyribenzoxim pyrazosulfuron oil-suspending agent of the present invention all uses separately apparently higher than each single agent the preventive effect of rice direct seeding field weed moleplant seed, barnyard grass grass and broad leaved weed, and anti-discovery said composition produces poisoning to paddy rice simultaneously.
Biologicall test embodiment 2:12% pyribenzoxim pyrazosulfuron (4% pyribenzoxim; 8% pyrazosulfuron) wetting powder is prevented and kill off the transplanted rice field annual weed.
Test selects moleplant seed, barnyard grass grass and the more transplanted rice field of broad leaved weed to carry out.4 processing are established in test altogether, 3 repetitions are established in every processing, handling 1 is 12% pyribenzoxim pyrazosulfuron wetting powder, handling 2 is single agent 10% pyrazosulfuron wetting powder, handling 3 is single agent 5% pyribenzoxim missible oil, handle 4 and be contrast (not weeding of not dispenser), number of weeds amount and preventive effect are respectively handled in statistics and contrast after 15 days, and result of the test sees Table 2.
Table 2,12% pyribenzoxim pyrazosulfuron wetting powder are prevented and kill off transplanted rice field annual weed field control effectiveness test result.
As can be seen from Table 2,15 days 12% pyribenzoxim pyrazosulfuron wetting powders of the present invention all use separately apparently higher than each single agent the preventive effect of transplanted rice field weed moleplant seed, barnyard grass grass and broad leaved weed behind the medicine, and anti-discovery said composition produces poisoning to paddy rice simultaneously.
In sum, it is the complex composition of pyribenzoxim and pyrazosulfuron that the present invention adopts two kinds of active components, compares with unitary agent, and herbicidal effect obviously improves.This Herbicidal combinations can reduce the long-term resistance risk that brings that uses of single medicament, and a dispenser can be prevented and kill off paddy field weed substantially, reduces spraying times, and is good to rice safety, is to prevent and kill off paddy field weed effect novel composition medicament preferably at present.
Claims (4)
1. Herbicidal combinations that contains pyribenzoxim and pyrazosulfuron, it is characterized in that: active ingredient is pyribenzoxim and pyrazosulfuron, the ratio of quality and the number of copies of pyribenzoxim and pyrazosulfuron is 1:20～20:1.
2. a kind of Herbicidal combinations that contains pyribenzoxim and pyrazosulfuron according to claim 1, it is characterized in that: the ratio of quality and the number of copies of pyribenzoxim and pyrazosulfuron is 5:1～1:5.
3. a kind of Herbicidal combinations that contains pyribenzoxim and pyrazosulfuron according to claim 1 is characterized in that: its formulation is a kind of in oil-suspending agent, wetting powder or the water dispersible granules.
4. a kind of Herbicidal combinations that contains pyribenzoxim and pyrazosulfuron according to claim 1 is characterized in that: be applicable to and prevent and kill off the paddy field annual weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102186890A CN103329918A (en) | 2013-06-04 | 2013-06-04 | Weeding composition containing pyribenzoxim and pyrazosulfuron |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102186890A CN103329918A (en) | 2013-06-04 | 2013-06-04 | Weeding composition containing pyribenzoxim and pyrazosulfuron |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271061A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Synergistic weeding composition |
| CN103636649A (en) * | 2013-10-30 | 2014-03-19 | 广东中迅农科股份有限公司 | Ternary mixed weeding composition |
| CN104663698A (en) * | 2015-02-12 | 2015-06-03 | 海利尔药业集团股份有限公司 | Weeding composition containing pyribenzoxim and propoxycarbazone-sodiurn |
| CN107372560A (en) * | 2017-08-04 | 2017-11-24 | 安徽圣丰生化有限公司 | A kind of herbicidal composition of pyribenzoxim, dichloro quinolinic acid and pyrazosulfuron |
| CN110100835A (en) * | 2019-05-13 | 2019-08-09 | 台州煜农生物科技有限公司 | A kind of mixed herbicidal composite containing trifluoro ketone grass ether and pyrazosulfuron |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247703A (en) * | 1998-07-08 | 2000-03-22 | 罗纳-普朗克农业公司 | Novel herbicide composition |
| CN101204154A (en) * | 2007-11-29 | 2008-06-25 | 贵州省植物保护研究所 | Compound herbicide |
-
2013
- 2013-06-04 CN CN2013102186890A patent/CN103329918A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247703A (en) * | 1998-07-08 | 2000-03-22 | 罗纳-普朗克农业公司 | Novel herbicide composition |
| CN101204154A (en) * | 2007-11-29 | 2008-06-25 | 贵州省植物保护研究所 | Compound herbicide |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271061A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Synergistic weeding composition |
| CN103271061B (en) * | 2013-06-05 | 2016-01-06 | 江苏龙灯化学有限公司 | A kind of synergistic herbicidal compositions |
| CN103636649A (en) * | 2013-10-30 | 2014-03-19 | 广东中迅农科股份有限公司 | Ternary mixed weeding composition |
| CN104663698A (en) * | 2015-02-12 | 2015-06-03 | 海利尔药业集团股份有限公司 | Weeding composition containing pyribenzoxim and propoxycarbazone-sodiurn |
| CN107372560A (en) * | 2017-08-04 | 2017-11-24 | 安徽圣丰生化有限公司 | A kind of herbicidal composition of pyribenzoxim, dichloro quinolinic acid and pyrazosulfuron |
| CN110100835A (en) * | 2019-05-13 | 2019-08-09 | 台州煜农生物科技有限公司 | A kind of mixed herbicidal composite containing trifluoro ketone grass ether and pyrazosulfuron |
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Application publication date: 20131002 |