CN102265850B - Weeding composition containing bentazone, clopyralid and atrazine, and application thereof - Google Patents
Weeding composition containing bentazone, clopyralid and atrazine, and application thereof Download PDFInfo
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- CN102265850B CN102265850B CN 201010192877 CN201010192877A CN102265850B CN 102265850 B CN102265850 B CN 102265850B CN 201010192877 CN201010192877 CN 201010192877 CN 201010192877 A CN201010192877 A CN 201010192877A CN 102265850 B CN102265850 B CN 102265850B
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- atrazine
- clopyralid
- bentazone
- herbicidal combinations
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Abstract
The invention discloses a weeding composition containing bentazone, clopyralid and atrazine, and application thereof. Bentazone, clopyralid and atrazine are used as main active components of the weeding composition, and the mass ratio of bentazone to clopyralid to atrazine is 1-70:1-60:1-60. The weeding composition provided in the invention has substantial effects in application of weeding after seedling emergence in a cornfield, especially in application of preventing and eliminating grassy and broadleaf weeds in the cornfield. Compared to a single weedicide, on the premise of improving drugeffects, the weeding composition in the invention enables resistance of weeds to be delayed, has a broad weeding spectrum and a long persistent period, and is safe to maize and succeeding crops.
Description
Technical field
The invention belongs to technical field of pesticide, weed killer herbicide field especially is specifically related to the ternary built Herbicidal combinations of a kind of bentazone, clopyralid and atrazine.This Herbicidal combinations can be applicable to the corn field postemergence weed control.
Background technology
Bentazone has another name called Lysimachia sikokiana pellet, Bentazon.Chemical name: the 3-isopropyl-(1H)-and benzo-2,1,3-thiadiazine-4-ketone-2, the 2-dioxide, structural formula is:
This weed killer herbicide is optionally herbicide after seedling of contact killing type tool, is used for cauline leaf processing in seedling stage, works by the blade contact.Dry land is used, and is transmitted to inhibited photosynthesis in the chloroplast by the blade face infiltration first.The paddy field is used and can be passed through root absorption again by the blade face infiltration, is transmitted to cauline leaf, strongly hinders weeds photosynthesis and water metabolism, causes nutrition hungry, makes physiological function lack of proper care and cause death.Active ingredient is detoxified to active weak glycoconjugates metabolism in the tolerable crop body, and to crop safety, 6-18 week bentazone can be decomposed by microorganism in soil after the dispenser.But bentazone is invalid to grassy weed, and herbicidal spectrum is single.
Atrazine (Atrazine) has another name called atrazine, a kind of triazine herbicide, and formal name used at school 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazines, its structural formula:
Atrazine is before the selectivity inner sucting conduction type seedling, herbicide after seedling, and take root absorption as main, cauline leaf absorbs seldom, is transmitted to rapidly plant meristematic tissue and leaf section, disturbs photosynthesis that weeds are caused death.In the resistance crop bodies such as corn, decomposed the generation innocuous substance by the corn ketolase, thereby to safety such as corns.Its herbicide spectrum is wider, can prevent and kill off multiple annual gramineae and broad leaved weed.Because atrazine is take root absorption as main, thus when weeds generation density higher, or plant is when larger, it is difficult to thoroughly extremely cut weeds, and, had many weeds that it has been produced serious resistance.
Clopyralid (clopyralid), chemical name: 3,6-dichloropyridine-2-carboxylic acid, its structural formula is as follows:
Clopyralid is a kind of pyridines weed killer herbicide, after the weeds dispenser, by blade or root absorption, in plant corpus, divide a word with a hyphen at the end of a line up and down, pass to rapidly whole plant, the mechanism of action of its herbicide produces excessive ribonucleic for promoting the formation of plant nucleic acid, causes root growth excessive, stem and leaf growth deformity, nutrient consumption, vascular bundle transporting function is obstructed, and causes weeds dead.Be applicable to corn field and wheat paddock, can effectively prevent and kill off composite family, pulse family, Solanaceae and Umbelliferae weeds.Clopyralid is selective in gramineous crop, comprises in Brassic beet and other beet crops, flax, strawberry and the allium crop that at multiple broad leaf crop same selectivity is also arranged.Its broad weed-killing spectrum can be prevented and kill off annual weed and dark root perennial weed effectively.But it is narrower to herbicide spectrum, and is invalid to field bindweed etc., is difficult to thoroughly kill except the corn field broad leaved weed.
Corn field herbicide is limit by crop safety at present, the herbicide spectrum is also limited, be used alone the weed killer herbicide single dose and can not control completely effectively the generation of corn field weed, moreover some weed killer herbicide is because water-soluble large or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all easily causes this season crop or succession crop of dispenser.Therefore, but selection herbicide spectrum of the present invention is different, being made into mixture after the bentazone of pluses and minuses complementation, clopyralid and three kinds of suitable decrements of weed killer herbicide of atrazine uses, so both enlarged the herbicide spectrum, obviously improved herbicidal effect, also avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Summary of the invention:
The purpose of this invention is to provide a kind of Herbicidal combinations that contains bentazone, clopyralid and atrazine.
Another object of the present invention provides the application of this Herbicidal combinations in cornfield weeding.
A kind of Herbicidal combinations that contains bentazone, clopyralid and atrazine, it is characterized in that this Herbicidal combinations is take bentazone, clopyralid and atrazine as main active ingredient, the mass ratio of bentazone, clopyralid and atrazine is 1～70: 1～60: 1～60, the mass ratio of preferred bentazone, clopyralid and atrazine is 1～40: 1～50: 1～40, most preferably 1～10: 1～10: 1～15.
In Herbicidal combinations, bentazone, clopyralid and the atrazine three quality percentage composition in Herbicidal combinations is 1～85%, and the preferred mass percentage composition is 20～75%.
In the ternary recompounded composite of bentazone of the present invention, clopyralid and atrazine, except the active ingredients such as bentazone, clopyralid and atrazine, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on the pesticidal preparations and be mixed with any one formulation that allows on the agricultural chemicals.Preferably be processed into suspending agent, missible oil, water dispersion granule, wetting powder, aqueous emulsion etc.
Herbicidal combinations of the present invention can be used in the corn field postemergence weed control, particularly uses in various grass family and the broad leaved weed to have remarkable result in preventing and kill off corn field.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding is high.Herbicidal combinations of the present invention can kill weeds by three kinds of different mechanism, so that Weed Resistance has produced Speed Reduction, greatly improves the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.The herbicide of three kinds of weed killer herbicides spectrum is different, and the be mixed medicament that makes of three is combined herbicidal spectrum and the activity of various medicaments, so that the herbicidal spectrum of mix preparation is wider, the lasting period is longer.
3, delay Weed Resistance.The present invention can significantly improve the preventive effect to various resistant weeds, delays the generation of herbicide resistance, has prolonged the service life of medicament.
4, safe.Herbicidal combinations of the present invention is applied to the corn field postemergence weed control, and it can prevent and kill off various grass family and broad leaved weed in the corn field, under the prerequisite that has improved drug effect, corn and succession crop is all had safety.
Therefore, Herbicidal combinations of the present invention can be used in the weed killer herbicide for the preparation of the corn field postemergence weed control, particularly uses in the weed killer herbicide of grass family and broad leaved weed in preventing and kill off corn field.
Embodiment
Embodiment 1
Bentazone 10%, atrazine 28%, clopyralid 2%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxy third rare block compound 5%, xanthans 2%, water supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 40% suspending agent.
Embodiment 2
Bentazone 8%, atrazine 15%, clopyralid 2%, calcium dodecyl benzene sulfonate 9%, alkylphenol polyoxyethylene 5%, dimethylbenzene to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 25% missible oil.
Embodiment 3
Bentazone 60%, atrazine 10%, clopyralid 5%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 4
Bentazone 20%, atrazine 35%, clopyralid 10%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, sodium lignin sulfonate 7%, white carbon 9%, kaolin supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 65% wetting powder.
Embodiment 5
Bentazone 29%, atrazine 1%, clopyralid 10%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxy third rare block compound 5%, xanthans 2%, water supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 40% suspending agent.
Embodiment 6
Bentazone 1%, atrazine 10%, clopyralid 14%, methyl naphthalene sulfonate formaldehyde condensate 6%, polyoxyethylene nonylphenol ether 3%, aluminium-magnesium silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, solvent naphtha 20%, water to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 15% aqueous emulsion.
Embodiment 7
Bentazone 60%, atrazine 14%, clopyralid 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 8
Bentazone 20%, atrazine 40%, clopyralid 15%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 9
Atrazine 15%, bentazone 10%, clopyralid 50%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 75% water dispersion granule.
Embodiment 10
Bentazone 1%, atrazine 60%, clopyralid 15%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 61% water dispersion granule.
Embodiment 11
1), toxicity determination test
Utilize the preparation of embodiment 1～4, measure it to the co-toxicity coefficient of corn field common weed dayflower.
Test method: the seed of quantitative dayflower is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, in illumination box, cultivate, treat dayflower 3～6 leaves during the phase, do the composition spray processing of spraying in crawler type.Continue in the greenhouse after processing to cultivate, each processes preventive effect to weeds routine observation, and each weeds fresh weight after processing of weighing behind the 30d is pressed the method for the nineteen sixty propositions such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient shows that greater than 100 two kinds of active principles have synergistic effect, and co-toxicity coefficient shows that less than 100 two kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
The above results proves absolutely, bentazone, clopyralid and atrazine three complex preparation all have significant synergy preventing and kill off on the dayflower.
2), field control effectiveness test:
Reagent agent:
4 kinds of ternary built weed killer herbicides among the embodiment 1～4.
The contrast medicament:
25% bentazone aqua (commercially available), 360g/l atrazine missible oil (commercial), 24% clopyralid aqua (commercially available).
For studying thing: corn
Maize seedling was 3～6 leaf phases, grew fine, and robust plant is without other damage by disease and insect.
Prevent and kill off object:
Broad leaved weed and grassy weed: the corn field advantage weeds such as barnyard grass, green foxtail, dayflower, piemarker and anti-Zhi Amaranth.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head of sprinkler selection weed killer herbicide special use.During spraying, note liquid is evenly sprayed application in the experimental plot phenomenon of accomplishing there is not drain spray, spraying more.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments.In addition, also to behind medicine, observe the condition of production (consumption is the consumption of every mu of ground active ingredient) of crop in 1～15d, to investigate medicament whether crop be had poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine) and table 3 (40d behind the medicine).
20 days drug effect results after table 2 dispenser
| Treatment agent | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 50 | 96 | 93 | 94 |
| Embodiment 2 | 50 | 93 | 90 | 91 |
| Embodiment 3 | 50 | 95 | 92 | 94 |
| Embodiment 4 | 50 | 94 | 93 | 93 |
| 38% atrazine suspending agent | 150 | 88 | 79 | 84 |
| 25% bentazone aqua | 100 | - | 88 | 49 |
| 30% clopyralid aqua | 30 | - | 84 | 49 |
40 days drug effect results after table 3 dispenser
| Treatment agent | Consumption (ga.i./mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 50 | 90 | 88 | 89 |
| Embodiment 2 | 50 | 91 | 89 | 90 |
| Embodiment 3 | 50 | 92 | 87 | 90 |
| Embodiment 4 | 50 | 87 | 90 | 88 |
| 38% atrazine suspending agent | 150 | 73 | 69 | 70 |
| 25% bentazone aqua | 100 | - | 72 | 35 |
| 30% clopyralid aqua | 30 | - | 69 | 31 |
Can find out from table 2 and table 3, the present invention has significant preventive effect to grassy weed and broad leaved weed, and synergy is remarkable, and the lasting period is long.
Table 4 medicament is to the security survey result of crop
Each corn of processing in the residential quarter grows fine, and except the maize leaf of 24% clopyralid aqua treatment region has the medicine spot of calcination, other is respectively processed the residential quarter and has no any medicine spot, illustrates that compound drug of the present invention is to the equal safety of corn.
Claims (8)
1. Herbicidal combinations that contains bentazone, clopyralid and atrazine, it is characterized in that this Herbicidal combinations take bentazone, clopyralid and atrazine as active ingredient, the mass ratio of bentazone, clopyralid and atrazine is 1～70:1～60:1 ~ 60.
2. Herbicidal combinations according to claim 1, the mass ratio that it is characterized in that bentazone, clopyralid and atrazine in this Herbicidal combinations is 1～40:1～50:1 ~ 40.
3. the Herbicidal combinations described in according to claim 1 and 2 is characterized in that bentazone, clopyralid and the atrazine three quality percentage composition in Herbicidal combinations is 1 ~ 85%.
4. the Herbicidal combinations described in according to claim 3 is characterized in that bentazone, clopyralid and the atrazine three quality percentage composition in Herbicidal combinations is 20 ~ 75%.
5. the Herbicidal combinations described in according to claim 1 is characterized in that it take bentazone, clopyralid and atrazine as active ingredient and the auxiliary agent that allows on the agricultural chemicals is mixed with any one formulation.
6. the Herbicidal combinations described in according to claim 5 is characterized in that described formulation is suspending agent, missible oil, water dispersion granule, wetting powder or aqueous emulsion.
7. Herbicidal combinations claimed in claim 1 is for the preparation of the application in the weed killer herbicide of corn field postemergence weed control.
8. Herbicidal combinations claimed in claim 1 is for the preparation of the application in the weed killer herbicide of preventing and kill off grass family and broad leaved weed in the corn field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192877 CN102265850B (en) | 2010-06-04 | 2010-06-04 | Weeding composition containing bentazone, clopyralid and atrazine, and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010192877 CN102265850B (en) | 2010-06-04 | 2010-06-04 | Weeding composition containing bentazone, clopyralid and atrazine, and application thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102265850A CN102265850A (en) | 2011-12-07 |
| CN102265850B true CN102265850B (en) | 2013-09-18 |
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| CN 201010192877 Active CN102265850B (en) | 2010-06-04 | 2010-06-04 | Weeding composition containing bentazone, clopyralid and atrazine, and application thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105104388B (en) * | 2015-09-20 | 2017-12-15 | 安徽丰乐农化有限责任公司 | A kind of maize post-emergence compound herbicide containing topramezone, clopyralid and atrazine |
| CN105660662B (en) * | 2016-01-15 | 2017-12-05 | 浙江天丰生物科学有限公司 | A kind of sorghum field, Semen Coicis field weeding composition |
| CN112493248A (en) * | 2020-11-17 | 2021-03-16 | 京博农化科技有限公司 | Weeding composition containing topramezone, clopyralid and bentazone |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030176284A1 (en) * | 2002-03-05 | 2003-09-18 | Bayer Cropscience Gmbh | Herbicide combination with acylated aminophenylsulfonylureas |
| CN1668199A (en) * | 2002-07-08 | 2005-09-14 | 巴斯福股份公司 | Synergistically acting herbicidal mixtures |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030176284A1 (en) * | 2002-03-05 | 2003-09-18 | Bayer Cropscience Gmbh | Herbicide combination with acylated aminophenylsulfonylureas |
| CN1668199A (en) * | 2002-07-08 | 2005-09-14 | 巴斯福股份公司 | Synergistically acting herbicidal mixtures |
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