CN105794780A - Weeding composition - Google Patents
Weeding composition Download PDFInfo
- Publication number
- CN105794780A CN105794780A CN201610320388.2A CN201610320388A CN105794780A CN 105794780 A CN105794780 A CN 105794780A CN 201610320388 A CN201610320388 A CN 201610320388A CN 105794780 A CN105794780 A CN 105794780A
- Authority
- CN
- China
- Prior art keywords
- pretilachlor
- oxyfluorfen
- benzobicylon
- herbicide
- weeding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
- A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
- A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
Abstract
The invention belongs to the technical field of pesticides, and relates to a weeding composition.The weeding composition is characterized by comprising three active ingredients of pretilachlor, benzobicylon and oxyfluorfen.The weeding composition is wide in weeding spectrum, significant in weeding effect, safe to rice and capable of prolonging lasting period and achieving the obvious synergistic effect.
Description
Technical field
The invention belongs to technical field of pesticide, specifically contain the ternary weeding composition of pretilachlor, benzobicylon, Oxyfluorfen.
Background technology
Pretilachlor (pretilachlor) is to have high selective rice terrace herbicides special.To rice safety, broad weed-killing spectrum.Weed seed absorbs medicament in germination process, and root absorption is poor.These product are preemergence herbicide, are mainly used in preventing and kill off grassy weed.Product belongs to 2-acetyl chloride for phenyl amines herbicide, it is cell division inhibitor, annual gramineous weed and the broad leaved weed such as barnyard grass in paddy field, shaven head barnyard grass, Semen Euphorbiae, Herba Eleusines Indicae, Herba Eleocharitis acicularis, alisma canaliculatum, Herba Ammanniae Bacciferae, Herba Cyperi Difformis, cyperus iria, Herba Ludwigiae Prostratae, Herba monochoriae vaginalis can be prevented and kill off for soil treatment.
Benzobicylon (benzobicylon) is the novel bicyclic octane class albinism rice terrace post-emergence herbicide of SDS biotech firm of Japan research and development, and exploitation code name is SB-500.This compound structure is unique, owing to target enzymes can progressively be discharged, so than other herbicides, its selectivity between rice terrace and weeds is more notable, and in water, dissolubility significantly declines.And the herbicide spectrum of this composition is very wide, and more enough prevent and kill off rice terrace the worst weeds, especially that the firefly Lin's effect of tool awns cyperus iria being difficult to for a long time prevent and treat is obvious.It addition, this composition toeatment period width, the lasting period is long.
Oxyfluorfen (oxyfluorfen) is the fluorine-containing benzene ether-derivative herbicides succeeded in developing by Rhom and Hass of the U.S. in 1975, and its activity of weeding improves 5～10 times than corresponding nitrofen, for 16.32 times of benthiocarb.Use scope is wide, broad weed-killing spectrum, and the lasting period is long, and mu consumption is few, and activity is high, can use with multiple mixture of herbicides, expands herbicide spectrum, improves drug effect, easy to use, both can bud pre-treatment, again can bud post processing, toxicity is low, plays its activity of weeding when there being light.Enter in plant mainly through plumule, mesocotyl, less through root absorption, and have denier to be transported up entering leaf portion by root.Before can be used for Cotton Gossypii, onion, Semen arachidis hypogaeae, Semen sojae atricolor, Radix Betae, fruit tree and vegetable fields bud, use after bud and prevent and kill off barnyard grass, sesbania, downy brome, Herba Setariae Viridis, Flos Daturae, quackgrass, artemisiifolia, thorn Hemerocallis citrina Baroni sth. made by twisting, Herba Abutili, charlock unifacial leaf and broad leaved weed.
The field efficacy experiment long-term by us is thought, using with between some herbicide can overcome or alleviated by chemical injury of crops.The use lack of standardization of current herbicide result in various places constantly the report of herbicide resistance and poisoning.The composite mixed of pesticide is to alleviate poisoning at present, improves the most economical effective method of drug effect.Simultaneously as various herbicides are because of the difference of its chemical composition, physicochemical property, herbicide scope is also different, and some herbicide herbicide scope is narrower, but has the action effect of uniqueness；The herbicidal spectrum of some herbicide is very wide, it is possible to the multiple weeds in preventing and treating field simultaneously, herbicide mixture can expand the herbicidal spectrum of complex preparation.Therefore we are by pretilachlor, herbicide mixture that three kinds of herbicide effect modes of benzobicylon and Oxyfluorfen are different, to reduce the generation of resistance, expand herbicide spectrum, reduce the impact on soil environment, increase economic efficiency.
Summary of the invention
The shortcoming that present invention aims to prior art, it is provided that a kind of herbicidal effect is good, quick-acting is high, the lasting period is long, herbicidal composition simultaneously environmentally safe, easy to use, to reducing peasant's dispenser cost, increases economic efficiency.It is specifically related to the Herbicidal combinations that pretilachlor, benzobicylon and Oxyfluorfen are composite.
Utilize above-mentioned Herbicidal combinations, be equipped with the known auxiliary agent of those skilled in that art, with those skilled in that art's known method, make suspension emulsion.
In described Herbicidal combinations, containing pretilachlor 5%-40%, benzobicylon 2%-30%, Oxyfluorfen 1%-20%.
Described herbicidal composition is mainly used in preventing and treating transplanted rice field annual grassy weeds.
Described Herbicidal combinations can carry out transplanted rice field soil spraying process and pesticide-clay mixture method closes weeding.
Described Herbicidal combinations has the advantage that and beneficial effect: 1. effective ingredient is novel, and the mechanism of action is unique；2. dosage form is novel, it is possible to increase effective ingredient drug effect；3. to rice safety, to succession crop safety；4. three kinds of herbicide mixtures have potentiation, consumption all than single use time reduce, stability increase.
Detailed description of the invention
In order to verify pretilachlor, benzobicylon and three kinds of effective ingredient of Oxyfluorfen are composite can good potentiation, first applicant tests under room temperature condition of pot, to determine pretilachlor, benzobicylon, Oxyfluorfen and different blended combo conjunction herbicidal effect thereof, evaluate its synergy.
Test and Selection barnyard grass and firefly Lin are as target weeds.
The preparation of test medicine:
Pretilachlor solution: accurately weigh the former medicine of pretilachlor of constant weight 95%, dissolves by proper amount of methanol, adds containing the clear water of 0.1% Tween 80 emulsifying agent, stirring to uniformly, solution containing certain effective ingredient.
Benzobicylon solution: accurately weigh the former medicine of benzobicylon of constant weight 95%, dissolves by proper amount of methanol, adds containing the clear water of 0.1% Tween 80 emulsifying agent, stirring to uniformly, solution containing certain effective ingredient.
Oxyfluorfen solution: accurately weigh the former medicine of Oxyfluorfen of constant weight 95%, dissolves by proper amount of methanol, adds containing the clear water of 0.1% Tween 80 emulsifying agent, stirring to uniformly, solution containing certain effective ingredient.
Placebo solution: add the water of the Tween 80 emulsifying agent of equivalent 0.1% with the methanol of equivalent.
Test method is as follows: test adopts organic matter≤2%, pH is neutral, permeability is good, the air-dry sandy loam sieved, test soil is quantitatively filled to 4/5 place of basin alms bowl, adopts infiltrating irrigation mode bottom basin alms bowl, make soil completely moistening, by the confession examination weed seed uniform broadcasting of pretreatment in soil surface, then according to seed size earthing 0.5cm-2cm, after sowing 24h, carry out soil spraying process.Each process 4 repetition, uses blank solution to compare.After process, test material is placed in room temperature and cultivates, and with infiltrating irrigation mode moisturizing bottom basin alms bowl, the growing state of routine observation weeds, estimates damage symptoms and the growth inhibited situation of target weeds, weighs strain fresh weight, calculate fresh weight inhibition (%) after 21 days.
Evaluation of effect method, evaluates herbicide mode of application according to colby method, and its formula is as follows:
E0=A+B+C
E in formula0It it is the theoretical preventive effect after three kinds of effective ingredient mixtures, weeds suppressed, E is the actual measurement preventive effect after three kinds of effective ingredient mixtures, weeds suppressed, A is pretilachlor preventive effect to target weeds at this dose, B is benzobicylon preventive effect to target weeds at this dose, C is Oxyfluorfen preventive effect to target weeds at this dose, E-E0For the synergy coefficient of mixture preparation, in order to evaluate the synergism of two kinds of effective ingredient, work as E-E0> 10% is potentiation, E-E0<-10% is antagonism, E-E0Value is addition between theoretical value ± 10%.
The raw of barnyard grass activity of weeding is surveyed result of the test by table 1 pretilachlor, benzobicylon and Oxyfluorfen different ratio
As can be seen from Table 1, composite between three kinds of effective ingredient, the preventive effect of barnyard grass there is is good potentiation.
The raw of firefly Lin's activity of weeding is surveyed result of the test by table 2 pretilachlor, benzobicylon and Oxyfluorfen different ratio
As can be seen from Table 2, composite between three kinds of effective ingredient, the preventive effect of firefly Lin there is is good potentiation.
Above-mentioned experimental data, it can be seen that three kinds of effective ingredient are composite, compared with using single medicament and use two of which effective ingredient, have good potentiation, the synergy coefficient of barnyard grass and firefly Lin has all been exceeded 16%.
Below by way of instantiation in order to further describe the present invention, but the present invention is only limited to absolutely not these embodiments following.In formula, percentage ratio is all weight percentage, and the former medicine used and auxiliary agent are other producers and buy.Formulation examples is as follows:
Embodiment 1 (46% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 2 (32% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 3 (41% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 4 (28% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 5 (40% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 6 (50% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 7 (43% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 8 (35% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Embodiment 9 (37% pretilachlor benzobicylon Oxyfluorfen suspension emulsion)
Above example is selected to carry out the field efficacy experiment of preventing and treating paddy field weed, to determine the effect of weeds in formula preventing and treating rice terrace, simultaneously by compared with pretilachlor, benzobicylon and Oxyfluorfen, it is determined that the synergistic effect after composite, it is embodied as follows:
Experiment one: 28% pretilachlor benzobicylon Oxyfluorfen suspension emulsion and the preventing and treating herbicide for paddy field experiment of other preparations.Test site is Kiamusze City of Heilongjiang Province, time is on June 5th, 2015, test medicine all prepares according to examples detailed above and uses the bucket between two of 50% pretilachlor cream, 20% benzobicylon suspending agent, 5% oxyfluorfen EC and above-mentioned three kinds of single doses to infiltrate row comparison, soil spraying process is carried out after sowing one day, each process three repetition, uses clear water to compare.Community random alignment, plot area 100m2.After dispenser, investigate barnyard grass and firefly Lin's number in field.Preventive effect calculates according to the following equation:
After medicine, 7d, 14d investigate the weeds number strain fresh weight in rice terrace, and Oryza sativa L. is occurred by visual test medicament without poisoning.
Result of the test is following table such as:
The test of pesticide effectiveness of table 3 pretilachlor, benzobicylon and Oxyfluorfen different ratio and other chemical control paddy field weeds
From the data above this it appears that, after pretilachlor and benzobicylon, Oxyfluorfen ternary built, all embodiments to the preventive effect of barnyard grass and firefly Lin all more than 90%, mixed to two kinds of Weed-control effect far above pretilachlor, benzobicylon, three kinds of single doses of Oxyfluorfen and three kinds of single dose buckets between two, to rice safety after soil spraying, without poisoning.
The herbicide experiment of test two: 28% pretilachlor benzobicylon Oxyfluorfen suspension emulsions and other preparations preventing and treating water paddy soil sealing treatment.Test site is Kiamusze City of Heilongjiang Province, time is on June 5th, 2015, test medicine all prepares according to examples detailed above and uses the bucket between two of 50% pretilachlor cream, 20% benzobicylon suspending agent, 5% oxyfluorfen EC and above-mentioned three kinds of single doses to infiltrate row comparison, after rice transplanting rice transplanting 1 day, medicament and mixing with soil are mixed thoroughly and spreads fertilizer over the fields, the temporally fresh weight of investigation statistics each community weeds, each process three repetition, community random alignment, plot area 100m2。
After transplanting, 7d, 14d investigate the weeds fresh weight in rice terrace, and Oryza sativa L. is occurred by visual test medicament without poisoning.Result of the test is following table such as:
The test of pesticide effectiveness of table 4 pretilachlor, benzobicylon and Oxyfluorfen different ratio and other chemical control paddy field weeds
From the data above this it appears that, after pretilachlor and benzobicylon, Oxyfluorfen ternary built, all embodiments to the closing preventive effect of barnyard grass and firefly Lin all more than 90%, mixed to two kinds of Weed-control effect far above pretilachlor, benzobicylon, three kinds of single doses of Oxyfluorfen and three kinds of single dose buckets between two, Oryza sativa L. is produced without poisoning, safe and efficient.
Claims (2)
1. a Herbicidal combinations, it is characterized in that: described Herbicidal combinations active component is made up of pretilachlor, benzobicylon, Oxyfluorfen, the percentage by weight of described pretilachlor is 5%～40%, the percentage by weight of benzobicylon is 2%～30%, and the percentage by weight of Oxyfluorfen is 1%～20%.
2. Herbicidal combinations according to claim 1, it is characterised in that: made suspension emulsion by effective ingredient and adjuvant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320388.2A CN105794780A (en) | 2016-05-14 | 2016-05-14 | Weeding composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320388.2A CN105794780A (en) | 2016-05-14 | 2016-05-14 | Weeding composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105794780A true CN105794780A (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610320388.2A Pending CN105794780A (en) | 2016-05-14 | 2016-05-14 | Weeding composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020019430A1 (en) * | 2018-07-21 | 2020-01-30 | 青岛清原化合物有限公司 | Ternary herbicidal composition containing hppd inhibitor herbicide and use thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004129591A (en) * | 2002-10-11 | 2004-04-30 | Japan Association For Advancement Of Phytoregulators | Method for cultivating crop by which inhibition of germination and growth by chemical material is reduced and suppressed |
| CN101433206A (en) * | 2008-12-12 | 2009-05-20 | 杨卫东 | Herbicidal composition |
| CN103348981A (en) * | 2013-07-31 | 2013-10-16 | 河北博嘉农业有限公司 | Paddy field herbicide compounded with benzobicylon |
| CN104222113A (en) * | 2014-08-26 | 2014-12-24 | 广东中迅农科股份有限公司 | Herbicide for rice transplanting field |
| CN104285974A (en) * | 2014-09-23 | 2015-01-21 | 广东中迅农科股份有限公司 | Herbicide composition for rice transplanting fields |
-
2016
- 2016-05-14 CN CN201610320388.2A patent/CN105794780A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004129591A (en) * | 2002-10-11 | 2004-04-30 | Japan Association For Advancement Of Phytoregulators | Method for cultivating crop by which inhibition of germination and growth by chemical material is reduced and suppressed |
| CN101433206A (en) * | 2008-12-12 | 2009-05-20 | 杨卫东 | Herbicidal composition |
| CN103348981A (en) * | 2013-07-31 | 2013-10-16 | 河北博嘉农业有限公司 | Paddy field herbicide compounded with benzobicylon |
| CN104222113A (en) * | 2014-08-26 | 2014-12-24 | 广东中迅农科股份有限公司 | Herbicide for rice transplanting field |
| CN104285974A (en) * | 2014-09-23 | 2015-01-21 | 广东中迅农科股份有限公司 | Herbicide composition for rice transplanting fields |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020019430A1 (en) * | 2018-07-21 | 2020-01-30 | 青岛清原化合物有限公司 | Ternary herbicidal composition containing hppd inhibitor herbicide and use thereof |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171226 Address after: 063600 Tianjin Road, Leting County Economic Development Zone, Tangshan City, Hebei Province, A-3 Applicant after: Yanhua Yongle (Leting) Biological Technology Co. Ltd. Address before: 102488, Beijing, Fangshan District Star Street, No. 1 hospital green sail, No. 16, building 8 Applicant before: Beijing Yanhua Yongle Biotechnology Co., Ltd. |
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Application publication date: 20160727 |
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