CN102027976B - Herbicidal composition containing sulcotrione and rimsulfuron and application thereof - Google Patents
Herbicidal composition containing sulcotrione and rimsulfuron and application thereof Download PDFInfo
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- CN102027976B CN102027976B CN 200910036178 CN200910036178A CN102027976B CN 102027976 B CN102027976 B CN 102027976B CN 200910036178 CN200910036178 CN 200910036178 CN 200910036178 A CN200910036178 A CN 200910036178A CN 102027976 B CN102027976 B CN 102027976B
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- rimsulfuron
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Abstract
The invention discloses a herbicidal composition containing sulcotrione and rimsulfuron and application thereof. The main active ingredients of the herbicidal composition are the sulcotrione and the rimsulfuron in a mass ratio of 1-60:1-70. The herbicidal composition can be used for preparing herbicides for controlling post-emergence weeds in a corn field. Compared with a single-component herbicide, the herbicidal composition delays resistance of weeds, has broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, is safe for corn and afterculture crops, and particularly has an obvious effect of controlling various gramineous and broadleaf weeds in the corn field.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of weed killer herbicide, be specifically related to a kind of sulphur humulone and mix built agent with the binary of rimsulfuron 25, this Herbicidal combinations can be applicable to the corn field postemergence weed control.
Background technology
Corn is important cereal crops, is also important forage crop, is described as " king of feed ", and in recent years, along with the development of livestock breeding, food processing and wine-making industry, market demand constantly increases.China is corn major country of production in the world, and national every Annual planting area reaches 2,140 ten thousand hm at present
2, account for 18.9% of plant of grain crops area, be only second to paddy rice and wheat, occupy the 3rd.Divide spring sowing, summer sowing, northern Spring maize seeding district, take 3 provinces of Northeast China, the Inner Mongol and Ningxia as main, and cultivated area is stabilized in more than 650 ten thousand hectares, accounts for national 36% left and right; More than 2,700 ten thousand tons of total products, account for 40% national left and right.，Yi Shandong, Huang-Huai-Hai plain Summer Maize district and Henan are main, and approximately more than 600 ten thousand hectares of cultivated areas account for the whole nation 32%, always produce approximately 2,200 ten thousand tons, account for national 34% left and right.
It is reported that national corn approximately has 1/2 area to be subject to crop smothering in various degree, serious crop smothering area approximately 10～20%, if not weeding of field can make the corn underproduction more than 50%.The weeds of corn field occur general, of a great variety.According to national weeds findings of the survey, whole nation corn field weed has 22 sections, 38 belong to, 43 kinds, as barnyard grass, lady's-grass, eleusine indica, moleplant seed, green foxtail, india lovegrass, wild oat, lamb's-quarters, knotweed, amaranth, piemarker, salsola collina, field bindweed, lettuce Mai Lay, field thistle, Siberian cocklebur, Acalypha-austratis-L, Ageratum conyzoides etc.; Wherein, main weeds has lady's-grass, barnyard grass, green foxtail, eleusine indica, Amaranthus retroflexus, kitchen garden, acalypha copperleaf, lamb's-quarters, Siberian cocklebur, the rhizome of nutgrass flatsedge etc.Maize at Seedling Stage is subject to crop smothering the most serious, the corn growth middle and later periods weeds little on the impact of output.When Maize Seedling is subject to weed encroachment, plant is short and small, stalk spire Huang, causes the middle and later periods corn growth bad, Severe Reduction.Corn field weed vitality is extremely vigorous, and some seeds are embedded in soil 20 years and still can germinate, as the rhizome of nutgrass flatsedge, lamb's-quarters, knotweed, kitchen garden, japanese bearbind etc.The characteristics such as general weeds have ripe morning, irregular, segmentation is emerged, be unfavorable for control, and much weeds can wake up from death, and especially perennial weed, shine 3 days in field after manually pulling out as kitchen garden, meets rain and still can recover to grow.In addition, weeds also have surprising fertility, and the solid number of most weeds is even up to ten thousand times of several times of crop, hundred times.According to investigations, a strain lady's-grass approximately has 220,000 seeds, and how strong its fertility have as seen.The corn field weed growth rapidly, amount of growth is large, strive water with corn, strive fertilizer, strive space, larger to seedling growth of corn harm, cause that seedling is thin, a little less than seedling, affect output and reach 10-50%, the economic loss caused in order to reduce crop smothering, reduce labor intensity, also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is accepted by people gradually simultaneously.
Sulphur humulone (Sulcotrione), have another name called nitre sulphur ketone, a kind of three ketones weed killer herbicide, and formal name used at school 2-(the chloro-4-methylsulfonyl of 2-) benzoyl-1, hydroresorcinol, its structural representation is as follows:
The sulphur humulone is before selectivity inner sucting conduction type maize seedling and herbicide after seedling, it can suppress the biosynthesis of carotenoid, weeds are occurred after albefaction dead, the sulphur humulone can effectively be prevented and kill off the broadleaf weeds such as corn field dayflower, piemarker, knotweed, acalypha copperleaf, lamb's-quarters, Amaranthus retroflexus, the monocotyledon weeds such as lady's-grass, barnyard grass, green foxtail are also had to certain effect of preventing and kill off, to corn safety.Under normal crop rotation, to succession crop as wheat class, rape, potato, beet safety.But the sulphur humulone is poor to the field efficacy of grassy weed, herbicidal spectrum is comparatively narrow, therefore, has been subject in the use certain restriction.
Rimsulfuron 25 (rimsulfuron); claim again rimsulfuron; commodity precious one-tenth by name (Titus); be E.I.Du Pont Company in 20th century sulfonylurea herbicide successfully researched and developed of the mid-80; chemical name: 1-(4,6 dimethoxypyridins-2-yl)-3-(3-ethylsulfonyl-2-pyridine sulphonyl) urea.Rimsulfuron 25 has the advantages such as high selectivity, efficient, low toxicity, is a kind of important corn field herbicide.The bud post processing is taked in dispenser, by weeds cauline leaf and root absorption, conducts in plant rapidly and suppresses the synthetic of weeds valine and isoleucine, stops cell division, kills weeds.Flavescence in 3 days after susceptible weeds suction medicine, withered death in 1～3 week.Can effectively prevent and kill off most of broad-leaveds and grassy weed, as creeping thistle, lady's-grass, Commelina communis, barnyard grass, Annual Ryegrass, Amaranthus retroflexus, clearvers, numerous beach wormwood, corn poppy, the scope of application is wide, can be used for the crops such as corn, potato and tomato.Rimsulfuron 25 is one of kind more outstanding in the sulfonylurea herbicide kind of developing in recent years, has good market prospects.But, because the price of rimsulfuron 25 is higher, the unit use cost is large, therefore, all be subject to greatly restriction in sale and use.
Corn field herbicide is limit by crop safety at present, the herbicide spectrum is also limited, use separately a kind of weed killer herbicide single dose can not control completely effectively the generation of corn field weed, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or dispenser is inhomogeneous all easily causes the residual hazard to this season crop or succession crop.Therefore, but selection herbicide spectrum of the present invention is different, being made into mixture after two kinds of suitable decrements of weed killer herbicide of the rimsulfuron 25 of pluses and minuses complementation and sulphur humulone uses, so both enlarged the herbicide spectrum, obviously improved herbicidal effect, also avoided to this season is done the deposits yields poisoning and succession crop produced to the possibility of residual hazard.
Summary of the invention
The purpose of this invention is to provide a kind of Herbicidal combinations containing sulphur humulone and rimsulfuron 25.
Another object of the present invention is to provide the application of this Herbicidal combinations in the weed killer herbicide for the preparation of cornfield weeding.
A kind of Herbicidal combinations containing sulphur humulone and rimsulfuron 25, is characterized in that it is main active ingredient that this Herbicidal combinations be take sulphur humulone and rimsulfuron 25, and the mass ratio of sulphur humulone and rimsulfuron 25 is 1～60: 1～70.Preferably the mass ratio of sulphur humulone and rimsulfuron 25 is 1～40: 1～40, most preferably 1～20: 1～20.
In Herbicidal combinations, the two quality percentage composition in Herbicidal combinations of sulphur humulone and rimsulfuron 25 is 1～85%, and the preferred mass percentage composition is 15～80%.Active ingredient of the present invention is present in composition with the synergy effective dose.
In the binary built preparation of rimsulfuron 25 of the present invention and sulphur humulone, except the active ingredients such as rimsulfuron 25 and sulphur humulone, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on pesticidal preparations and be mixed with any one formulation allowed on agricultural chemicals.Preferably be processed into oil-suspending agent, dry outstanding agent, water dispersion granule, wetting powder etc.Can dilute rear employing while using and the known method such as spray.
Described surfactant specifically can adopt alkylphenol polyoxyethylene, phenethyl phenol polyethenoxy ether, methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene nonylphenol ether, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) etc., solid packing can be selected kaolin, diatomite etc., and solvent can adopt ethylene glycol, cyclohexanone, dimethylbenzene, water etc.These auxiliary agents can alone or mixing use, also can add other auxiliary material allowed on pesticidal preparations.
" % " of the present invention is weight percentage.
Herbicidal combinations of the present invention can be applied in the corn field postemergence weed control, particularly in preventing and kill off corn field, in various grass family and broad leaved weed, applies and has remarkable result.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding is high.The sulphur humulone is effective inhibitor of HPPD (4 one hydroxyphenyl pyruvic acid dual oxide enzyme), and rimsulfuron 25 is suppress weeds valine and isoleucine synthetic, stops cell division.That is to say, Herbicidal combinations of the present invention can kill weeds by two kinds of different approaches, can greatly improve the removing activity of Herbicidal combinations.
2, herbicidal spectrum is wide, and the lasting period is long.Sulphur humulone and rimsulfuron 25 are all the broad spectrum weeding agent, after both mix, action compensating, herbicidal spectrum is wider, and, because sulphur humulone and rimsulfuron 25 all have activity of weeding before certain bud, especially rimsulfuron 25 to bud before grassy weed special efficacy is arranged, so Herbicidal combinations of the present invention has the double action in leaf surface treatment and feud, extended the lasting period of medicament.
3, delay Weed Resistance.Because weeds easily produce resistance to sulfonylurea herbicide, and the sulphur humulone that contains three ketones in Herbicidal combinations of the present invention makes medicament can effectively prevent the weeds except anti-sulfonylurea, in addition, reduce the pesticide resistance of weeds, extended the service life of medicament.
4, safe.Herbicidal combinations of the present invention, be applied to the corn field postemergence weed control, and it can prevent and kill off various grass family and broad leaved weed in corn field, under the prerequisite that has improved drug effect, corn and succession crop all had to safety.
Therefore, Herbicidal combinations of the present invention can be applied in the weed killer herbicide for the preparation of the corn field postemergence weed control, particularly in the weed killer herbicide for the preparation of various grass family and broad leaved weed in preventing and kill off corn field, applies.
Embodiment
Embodiment 1
Rimsulfuron 25 13%, sulphur humulone 14%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, thickener 2%, vegetable oil to 100%, be mixed with according to conventional formulation method the oil-suspending agent that the quality percentage composition is 27%.
Embodiment 2
Rimsulfuron 25 20%, sulphur humulone 23%, NN0 (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, be mixed with according to conventional formulation method the dry outstanding agent that the quality percentage composition is 46%.
Embodiment 3
Rimsulfuron 25 15%, sulphur humulone 10%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, but is mixed with according to conventional formulation method the dispersible granule that the quality percentage composition is 25%.
Embodiment 4
Rimsulfuron 25 3%, sulphur humulone 3%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 9%, kaolin supplies 100%, according to conventional formulation method, is mixed with the wetting powder that the quality percentage composition is 6%.
Embodiment 5
Rimsulfuron 25 60%, sulphur humulone 20%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, according to conventional formulation method, is mixed with the wetting powder that the quality percentage composition is 80%.
Embodiment 6
Rimsulfuron 25 24%, sulphur humulone 1%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, be mixed with according to conventional formulation method the dry outstanding agent that the quality percentage composition is 25%.
Embodiment 7
Rimsulfuron 25 44%, sulphur humulone 10%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, but is mixed with according to conventional formulation method the dispersible granule that the quality percentage composition is 54%.
Embodiment 8
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to 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, cultivate in illumination box, until dayflower 3～6 leaves, during the phase, in crawler type, do on composition spray the processing of spraying.Continuation cultivation in greenhouse after processing, each processes the preventive effect to weeds routine observation, and the weeds fresh weight after 30d after each processing of weighing, press the abundant method of Sun Yun (nineteen sixty proposition), calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, shows that two kinds of active principles have synergistic effect, and co-toxicity coefficient is less than 100, shows that two kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite all is greater than 100, illustrates that the present invention has obvious synergistic effect.
2), field control effectiveness test
Reagent agent:
Binary built Herbicidal combinations in embodiment 1～4 4.
The contrast medicament:
25% rimsulfuron 25 dry suspending agent (commercially available), 15% sulphur humulone suspending agent (commercially available).
For studying thing: corn
Maize seedling was 3～5 leaf phases, grew fine, and robust plant, without other damage by disease and insect.
Prevent and kill off object:
The corn field advantage weeds such as lady's-grass, green foxtail, Ya Zhi grass, little lamb's-quarters, willow leaf knotweed.
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 experimental plot the phenomenon of accomplishing there is no drain spray, spraying more.
After test respectively after medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments (consumption is the consumption of every mu of ground active ingredient).In addition, also to after medicine, in 1～15d, observe the condition of production of crop, to investigate medicament, whether crop be had to poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d after medicine) and table 3 (40d after medicine)
Table 2 field control effectiveness test result (20d after medicine)
| Treatment agent | Consumption (g.ia/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 1.5 | 90 | 91 | 90 |
| Embodiment 2 | 1.5 | 89 | 94 | 91 |
| Embodiment 3 | 1.5 | 93 | 92 | 92 |
| Embodiment 4 | 1.5 | 90 | 92 | 90 |
| The dry outstanding agent of 25% rimsulfuron 25 | 1.5 | 85 | 80 | 81 |
| 15% sulphur humulone suspending agent | 40 | 70 | 67 | 62 |
Table 3 field control effectiveness test result (40d after medicine)
| Treatment agent | Consumption (g.ia/ mu) | Grass family preventive effect (%) | Broad leaved weed preventive effect (%) | Total preventive effect (%) |
| Embodiment 1 | 1.5 | 90 | 91 | 90 |
| Embodiment 2 | 1.5 | 89 | 94 | 91 |
| Embodiment 3 | 1.5 | 93 | 92 | 92 |
| Embodiment 4 | 1.5 | 90 | 92 | 90 |
| The dry outstanding agent of 25% rimsulfuron 25 | 1.5 | 75 | 70 | 81 |
| 15% sulphur humulone suspending agent | 40 | 61 | 47 | 62 |
From table 2 and table 3, can find out, the present invention has significant preventive effect to grassy weed and broad leaved weed, and synergy is remarkable, and the lasting period is long.
The security survey result of table 4 medicament to crop
Each corn of processing in community grows fine, and has no any medicine spot, illustrates that various medicaments are to the equal safety of corn.
Claims (12)
1. the Herbicidal combinations containing sulphur humulone and rimsulfuron 25, is characterized in that it is active ingredient that this Herbicidal combinations be take sulphur humulone and rimsulfuron 25, and specifically composition is:
Rimsulfuron 25 13%, sulphur humulone 14%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxypropylene block compound 5%, thickener 2%, vegetable oil to 100%, be mixed with according to conventional formulation method the oil-suspending agent that the quality percentage composition is 27%.
2. the Herbicidal combinations containing sulphur humulone and rimsulfuron 25, is characterized in that it is active ingredient that this Herbicidal combinations be take sulphur humulone and rimsulfuron 25, and specifically composition is:
Rimsulfuron 25 20%, sulphur humulone 23%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, be mixed with according to conventional formulation method the dry outstanding agent that the quality percentage composition is 46%.
3. the Herbicidal combinations containing sulphur humulone and rimsulfuron 25, is characterized in that it is active ingredient that this Herbicidal combinations be take sulphur humulone and rimsulfuron 25, and specifically composition is:
Rimsulfuron 25 15%, sulphur humulone 10%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, but is mixed with according to conventional formulation method the dispersible granule that the quality percentage composition is 25%.
4. the Herbicidal combinations containing sulphur humulone and rimsulfuron 25, is characterized in that it is active ingredient that this Herbicidal combinations be take sulphur humulone and rimsulfuron 25, and specifically composition is:
Rimsulfuron 25 3%, sulphur humulone 3%, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 6%, sodium lignin sulfonate 5%, white carbon 9%, kaolin supplies 100%, according to conventional formulation method, is mixed with the wetting powder that the quality percentage composition is 6%.
5. the application of Herbicidal combinations claimed in claim 1 in the weed killer herbicide for the preparation of the corn field postemergence weed control.
6. the application of Herbicidal combinations claimed in claim 2 in the weed killer herbicide for the preparation of the corn field postemergence weed control.
7. the application of Herbicidal combinations claimed in claim 3 in the weed killer herbicide for the preparation of the corn field postemergence weed control.
8. the application of Herbicidal combinations claimed in claim 4 in the weed killer herbicide for the preparation of the corn field postemergence weed control.
9. the application of Herbicidal combinations claimed in claim 1 in the weed killer herbicide for the preparation of grass family in preventing and kill off corn field and broad leaved weed.
10. the application of Herbicidal combinations claimed in claim 2 in the weed killer herbicide for the preparation of grass family in preventing and kill off corn field and broad leaved weed.
11. the application of Herbicidal combinations claimed in claim 3 in the weed killer herbicide for the preparation of grass family in preventing and kill off corn field and broad leaved weed.
12. the application of Herbicidal combinations claimed in claim 4 in the weed killer herbicide for the preparation of grass family in preventing and kill off corn field and broad leaved weed.
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| CN102283233B (en) * | 2011-06-28 | 2014-06-18 | 陕西韦尔奇作物保护有限公司 | Pesticide composition containing rimsulfuron |
| CN108283185A (en) * | 2018-04-05 | 2018-07-17 | 合肥红佳科技信息有限公司 | A kind of Herbicidal combinations containing dichloroquinoline humulone |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1596649A (en) * | 2004-08-25 | 2005-03-23 | 马韵升 | Herbicide composition containing methyl sulcotrione |
| WO2008142391A1 (en) * | 2007-05-21 | 2008-11-27 | Syngenta Limited | Herbicide compositions |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1596649A (en) * | 2004-08-25 | 2005-03-23 | 马韵升 | Herbicide composition containing methyl sulcotrione |
| WO2008142391A1 (en) * | 2007-05-21 | 2008-11-27 | Syngenta Limited | Herbicide compositions |
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