CN102027979A - Mixed herbicidal composition containing nicosulfuron and rimsulfuron and application thereof - Google Patents
Mixed herbicidal composition containing nicosulfuron and rimsulfuron and application thereof Download PDFInfo
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- CN102027979A CN102027979A CN2009100361827A CN200910036182A CN102027979A CN 102027979 A CN102027979 A CN 102027979A CN 2009100361827 A CN2009100361827 A CN 2009100361827A CN 200910036182 A CN200910036182 A CN 200910036182A CN 102027979 A CN102027979 A CN 102027979A
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- rimsulfuron
- nicosulfuron
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Abstract
The invention discloses a mixed herbicidal composition containing nicosulfuron and rimsulfuron and application thereof. The main active ingredients of the herbicidal composition are the nicosulfuron and the rimsulfuron in a mass ratio of 1-80:1-80. 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, and can be used for preparing herbicides for controlling post-emergence weeds in a corn field, particularly for preparing herbicides for controlling gramineous and broadleaf weeds in the corn field.
Description
Technical field
The invention belongs to technical field of pesticide, especially the weed killer herbicide field relates to the binary built agent of a kind of nicosulfuron and rimsulfuron 25, and this Herbicidal combinations can be applicable to the corn field postemergence weed control.
Background technology
Corn is an important crops, also is 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 annual cultivated area reaches 2,140 ten thousand hm at present
2, account for 18.9% of cereal crops cultivated area, be only second to paddy rice and wheat, occupy the 3rd.Divide spring sowing, summer sowing, northern spring sowing corn district, based on northeast 3 provinces, the Inner Mongol and Ningxia, cultivated area is stabilized in more than 650 ten thousand hectares, accounts for the whole nation about 36%; More than 2,700 ten thousand tons of gross outputs account for about 40% of the whole nation.The Yellow River and Huai He River sea plain summer sowing corn district, based on Shandong and Henan, about more than 600 ten thousand hectares of cultivated area accounts for the whole nation 32%, and about 2,200 ten thousand tons of gross output accounts for the whole nation about 34%.
It is reported that national corn has 1/2 area to be subjected in various degree crop smothering approximately, serious crop smothering area is about 10～20%, if not weeding of field can make the corn underproduction more than 50%.The weeds of corn field are taken place general, and are 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 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 grass, green foxtail, eleusine indica, Amaranthus retroflexus, kitchen garden, acalypha copperleaf, lamb's-quarters, Siberian cocklebur, the rhizome of nutgrass flatsedge etc.Corn is subjected to crop smothering the most serious seedling stage, the corn growth middle and later periods weeds little to the influence of output.When seedling stage, corn was subjected to weed encroachment, plant was short and small, stalk spire Huang, caused the middle and later periods corn growth bad, the serious underproduction.Corn field weed vitality is extremely vigorous, and some seeds are embedded in the soil 20 years and still can germinate, as the rhizome of nutgrass flatsedge, lamb's-quarters, knotweed, kitchen garden, japanese bearbind etc.General weeds have ripe early, irregular, characteristics such as segmentation is emerged, be unfavorable for control, and a lot of weeds can wake up from death, perennial weed was especially shone 3 days in the field manually pulling out the back as kitchen garden, met rain and still can recover growth.In addition, weeds also have surprising fertility, and the solid number of most weeds is several times of crop, hundred times even up to ten thousand times.According to investigations, a strain lady's-grass has 220,000 seeds approximately, and as seen how strong its fertility have.The corn field weed growth rapidly, amount of growth is big, strive water with corn, strive fertilizer, strive the space, bigger to corn seedling growth harm, cause that seedling is thin, a little less than the seedling, influence output and reach 10-50%, in order to reduce the economic loss that crop smothering causes, 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.
Nicosulfuron (nicosulfuron), other titles: Yu Nongle, cigarette sulphur swell, sulfonylurea herbicide, chemical name: 2-(4,6-dimethoxypyridin-2-base carbamyl aminosulfonyl)-N, the N-dimethyl nicotinamide, structural formula is:
Nicosulfuron is interior absorption, high efficiency corn weed killer herbicide, behind the low dosage bud with preventing and kill off multiple annual gramineous weed, broad leaved weed and sedge weed in the corn field effectively.It is absorbed rapidly by leaf and root, and conducts rapidly by xylem and phloem.Stop the synthetic of branched-chain amino acid by acetolactate synthestase.Use the back weeds and stop growing immediately, 4～5 days young leaves fade, necrosis, and progressively expand to whole plant, and general condition is handled back plant death in 20～25 days down.This medicine not only has cauline leaf processing effect, also has the preceding activity of weeding of bud.
Corn has drug resistance preferably to this medicine, handles the back and temporary transient chlorisis or slight hypoevolutism occur, but generally can recover rapidly and the not underproduction.
Though nicosulfuron can effectively be prevented and kill off some broad leaved weed such as perennial grassy weed such as annual and false Chinese sorghum such as lady's-grass, green foxtail, Cowhells, barnyard grass grass, wild oat, the wheatgrass that crawls and chickweed, Amaranthus retroflexus, wrinkle fruit amaranth, piemarker, Siberian cocklebur, kitchen garden, also better to sedge weed preventive effects such as the rhizome ofs nutgrass flatsedge, but invalid substantially to Bermuda grass, Veronica.And because corn field uses sulfonylurea herbicide for a long time, many weeds have produced resistance.
Rimsulfuron 25 (rimsulfuron); claim rimsulfuron again, commodity are by name precious to become (Titus), is 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 advantages such as high selectivity, efficient, low toxicity, is a kind of important corn field herbicide.The bud post processing is taked in dispenser, absorbs rapidly in plant conduction and suppresses the synthetic of weeds valine and isoleucine by weeds cauline leaf and root, stops cell division, kills weeds.Flavescence in 3 days behind the 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 grass, Annual Ryegrass, Amaranthus retroflexus, clearvers, numerous beach wormwood, corn poppy, the scope of application is wide, can be used for crops such as corn, potato and tomato.Rimsulfuron 25 is one of kind 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 big, therefore, all has been subjected to greatly restriction in sale and use.
Corn field herbicide is limit by crop safety at present, it is also limited to kill the grass spectrum, be used alone the agent of weed killer herbicide list and can not control the generation of corn field weed completely effectively, moreover some weed killer herbicide is because water-soluble big or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all causes easily this season crop or succession crop of dispenser.Therefore, the present invention selects to kill grass spectrum difference, being made into mixture after two kinds of suitable decrements of weed killer herbicide of the nicosulfuron of pluses and minuses complementation and rimsulfuron 25 uses, so both enlarged and killed the grass 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 mixed herbicidal composite that contains nicosulfuron and rimsulfuron 25.
Another object of the present invention provides this Herbicidal combinations is used for the weed killer herbicide of corn field postemergence weed control in preparation application.
A kind of mixed herbicidal composite that contains nicosulfuron and rimsulfuron 25 is characterized in that this Herbicidal combinations is main active ingredient with nicosulfuron and rimsulfuron 25, and the mass ratio of nicosulfuron and rimsulfuron 25 is 1～80: 1～80.The mass ratio of preferred nicosulfuron and rimsulfuron 25 is 1～60: 1～40, and most preferably the mass ratio of nicosulfuron and rimsulfuron 25 is 1～20: 1～15.
In mixed herbicidal composite, the two quality percentage composition in Herbicidal combinations of nicosulfuron and rimsulfuron 25 is 1～85%, and the preferred mass percentage composition is 4～75%.Active ingredient of the present invention all is present in the composition with the synergy effective dose.
In the binary built preparation of nicosulfuron of the present invention and sulphur humulone, except active ingredients such as nicosulfuron and sulphur humulone, 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 oil-suspending agent, do outstanding agent, water dispersion granule, wetting powder etc.Using said composition can adopt and 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. for use, and solvent can adopt ethylene glycol, cyclohexanone, dimethylbenzene, water etc.These auxiliary agents can singly be used or mixing and usefulness, also can add other auxiliary material that allows on the pesticidal preparations.
" % " of the present invention is weight percentage.
Mixed herbicidal composite of the present invention can be used in the corn field postemergence weed control, and particularly various grass family and broad leaved weed have remarkable result in preventing and kill off corn field.
Herbicidal combinations of the present invention has the following advantages:
1, activity of weeding height.Two kinds of weed killer herbicides all are the highy potent herbicides of sulfonylurea, and it just can reach extraordinary preventive effect under lower consumption, and both are composite can obviously to reduce the resistance of weeds, improve the lethality of weeds.
2, herbicidal spectrum is wide, and the lasting period is long.Nicosulfuron and rimsulfuron 25 all are the broad spectrum weeding agent, after both mix, action compensating, herbicidal spectrum is wideer, and, because nicosulfuron and rimsulfuron 25 all have the preceding activity of weeding of 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, prolonged the lasting period of medicament.
3, delay the weeds resistance.Because weeds easily produce resistance to sulfonylurea herbicide, and contain the nicosulfuron of three ketones in the Herbicidal combinations of the present invention, make medicament can prevent weeds effectively, in addition except anti-sulfonylurea, reduce the pesticide resistance of weeds, prolonged the service life of medicament.
4, safe.Herbicidal composition 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, mixed herbicidal composite of the present invention can be used in the weed killer herbicide of preparation corn field postemergence weed control, particularly uses in the weed killer herbicide of grass family and broad leaved weed in the corn field is prevented and kill off in preparation.
Specific embodiments
Embodiment 1
Nicosulfuron 3.5%, rimsulfuron 25 0.5%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxy third rare block compound 5%, xanthans 2%, vegetable oil supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 4% oil-suspending agent.
Embodiment 2
Nicosulfuron 20%, rimsulfuron 25 5%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 25% the outstanding agent of doing.
Embodiment 3
Nicosulfuron 60%, rimsulfuron 25 15%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, is 75% dispersible granule but be mixed with the quality percentage composition according to the formulation method of routine.
Embodiment 4
Nicosulfuron 35%, rimsulfuron 25 15%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 10%, sodium lignin sulfonate 4%, white carbon 9%, kaolin supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 50% wetting powder.
Embodiment 5
Nicosulfuron 35%, rimsulfuron 25 40%, sodium lignin sulfonate 7%, neopelex 10%, ammonium sulfate 5%, diatomite supplies 100%, is 75% dispersible granule but be mixed with the quality percentage composition according to the formulation method of routine.
Embodiment 6
Nicosulfuron 1% rimsulfuron 25 24%,, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, being mixed with the quality percentage composition according to the formulation method of routine is 25% the outstanding agent of doing.
Embodiment 7
Nicosulfuron 6%, rimsulfuron 25 2%, calcium dodecyl benzene sulfonate 6%, alkylphenol polyoxyethylene 4%, polyoxyethylene polyoxy third rare block compound 5%, xanthans 2%, vegetable oil supplies 100%, and being mixed with the quality percentage composition according to the formulation method of routine is 8% suspending agent.
Embodiment 8
1), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure its co-toxicity coefficient 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 that dayflower 3～6 leaves during the phase, do the processing of spraying on the composition spray in crawler type.Handle continuation cultivation in the greenhouse, back, routine observation is respectively handled the preventive effect to weeds, and the weeds fresh weight behind the 30d after each processing of weighing calculates its toxicity regression curve and co-toxicity coefficient by the abundant method of Sun Yun (nineteen sixty proposition).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.
The indoor determination of activity result of table 1
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite illustrates that all greater than 100 the present invention has obvious synergistic effect.
2), the test of pesticide effectiveness
Reagent agent:
Binary built Herbicidal combinations among among the embodiment 1～4 4.
The contrast medicament:
25% rimsulfuron 25 dry suspending agent (commercially available), 4% nicosulfuron suspending agent (commercially available).
For studying thing: corn
Maize seedling was 3～5 leaf phases, grew fine, and robust plant does not have other damage by disease and insect.
Prevent and kill off object:
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 converting the water dilution, utilize knapsack sprayer, and carrying out even spraying, shower nozzle is selected the Fan spray head of weed killer herbicide special use for use.During spraying, note soup is evenly sprayed application in the experimental plot, accomplish not leak the phenomenon of spray, many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments (consumption be every mu the consumption of active ingredient).In addition, also to behind medicine, observe the condition of production of crop in 1～15d, whether crop be had poisoning to investigate medicament.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d behind the medicine) and table 3 (40d behind the medicine)
Table 2 field control effectiveness test result (20d behind the medicine)
Table 3 field control effectiveness test result (40d behind the medicine)
As can be seen, the present invention has significant preventive effect to grassy weed and broad leaved weed from table 2 and table 3, and synergy is remarkable, and the lasting period is long.
The embodiments of the invention preparation sees Table 4 to the safety of crop
Table 4 medicament is to the security survey result of crop
Each corn of handling in the sub-district grows fine, and does not see any medicine spot, illustrates that various medicaments are to the equal safety of corn.
Claims (8)
1. a mixed herbicidal composite that contains nicosulfuron and rimsulfuron 25 is characterized in that this Herbicidal combinations is main active ingredient with nicosulfuron and rimsulfuron 25, and wherein, the mass ratio of nicosulfuron and rimsulfuron 25 is 1～80: 1～80.
2. the mixed herbicidal composite that contains nicosulfuron and rimsulfuron 25 according to claim 1 is characterized in that the mass ratio of nicosulfuron and rimsulfuron 25 is 1～60: 1～40 in this Herbicidal combinations.
3. according to the mixed herbicidal composite described in the claim 1～2, it is characterized in that the two quality percentage composition in Herbicidal combinations of nicosulfuron and rimsulfuron 25 is 1～85%.
4. according to the mixed herbicidal composite described in the claim 3, it is characterized in that the two quality percentage composition in Herbicidal combinations of nicosulfuron and rimsulfuron 25 is 4～75%.
5. according to the mixed herbicidal composite described in the claim 1, it is characterized in that it is that the auxiliary agent that allows on main active ingredient and the agricultural chemicals is mixed with any one formulation with nicosulfuron and rimsulfuron 25.
6. according to the mixed herbicidal composite described in the claim 5, it is characterized in that described formulation is oil-suspending agent, does and hang agent, water dispersion granule or wetting powder.
7. the described mixed herbicidal composite of claim 1 is used for the application of the weed killer herbicide of corn field postemergence weed control in preparation.
8. application according to claim 7 is characterized in that described mixed herbicidal composite is used for preventing and kill off application in the weed killer herbicide of corn field grass family and broad leaved weed in preparation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100361827A CN102027979A (en) | 2009-09-28 | 2009-09-28 | Mixed herbicidal composition containing nicosulfuron and rimsulfuron and application thereof |
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| CN2009100361827A CN102027979A (en) | 2009-09-28 | 2009-09-28 | Mixed herbicidal composition containing nicosulfuron and rimsulfuron and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856488A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Herbicide composition and application thereof |
| CN110856487A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Pesticide composition containing nicosulfuron, rimsulfuron and topramezone and application thereof |
-
2009
- 2009-09-28 CN CN2009100361827A patent/CN102027979A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| MOUNIR MEKKI，等: ""Activity of Nicosulfumn, Rimsulfumn, and Their Mixture on Field Corn (Zea mays), Soybean (Glycine max), and Seven Weed Speciesk"", 《WEED TECHNOLOGY》 * |
| 苏少泉: ""磺酰脲类除草剂新品种——玉嘧磺隆"", 《世界农药》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856488A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Herbicide composition and application thereof |
| CN110856487A (en) * | 2018-08-24 | 2020-03-03 | 北京颖泰嘉和生物科技股份有限公司 | Pesticide composition containing nicosulfuron, rimsulfuron and topramezone and application thereof |
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Application publication date: 20110427 |