CN103355337B - Wheat field weeding composition and preparations therefor - Google Patents
Wheat field weeding composition and preparations therefor Download PDFInfo
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- CN103355337B CN103355337B CN201310330757.2A CN201310330757A CN103355337B CN 103355337 B CN103355337 B CN 103355337B CN 201310330757 A CN201310330757 A CN 201310330757A CN 103355337 B CN103355337 B CN 103355337B
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Abstract
The invention relates to the pesticide preparation field, and discloses a wheat field weeding composition and preparations therefor. The weeding composition is composed of pinoxaden and halosulfuron-methyl. The weeding composition and preparations therefor take compound pinoxaden and halosulfuron-methyl as effective constituents. Pinoxaden and halosulfuron-methyl complement each other's advantages and have synergistic effects. The composition can delay generation of drug resistance of weeds, has synergistic effects on wheat field weeds, reduces dosage and dosing frequency greatly, has advantages of safety, high efficiency, environmental protection and the like, and can be widely used for control of wheat field grass damage.
Description
Technical field
The present invention relates to field of pesticide preparation, relate to a kind of cornfield herbicidal composition and preparation thereof specifically.
Background technology
Wheat is the general designation of Triticum plant, it is a kind of gramineous plants in extensively plantation all over the world, being rich in starch, protein, fat, mineral matter, calcium, iron, thiamine, vitamin b3, nicotinic acid and vitamin A etc., is the cereal crops of gross yield second in the world.In China, wheat is one of Three major grain crops, in all cereal crops, occupy critical role, is the basic of China's agricultural.But, China's major part wheat paddock always has crop smothering in various degree to occur, these weeds kinds are many, distribution is wide, and growing power is vigorous, and individual plant area coverage is large, moisture, nutriment, space is fought in a large number with wheat, cause wheat growth gesture weak, directly affect the yield and quality of wheat, directly affect China's cereal crops reserves.Therefore, domestic wheat paddock widely uses weed killer herbicide, avoids wheat underproduction because of weeds.
Halosulfuronmethyl is mainly used in preventing and kill off wheatland broad leaved weed and sedge weed.But, it is invalid for grassy weed, and use single herbicide and the change of wheatland cropping system, the introducing of new varieties due to long-term at wheatland, make weed community that significantly change occur, wheat weeds bamboo telegraph also constantly spreads, and some weed killer herbicides have been found to create resistance.And the wheat weeds fertilities such as broad leaved weed, nutgrass flatsedge weeds and grassy weed are strong, diffusion velocity is fast, and harm is heavy, causes wheat Severe Reduction.Halosulfuronmethyl weed killer herbicide now can not meet the needs of wheatland management of weeds.Therefore the weed killer herbicide researching and developing a kind of efficient control wheat weeds is needed, in order to tackle increasingly serious Weed infestation.
Summary of the invention
In view of this, the object of the invention is to provide a kind of cornfield herbicidal composition and preparation thereof, makes cornfield herbicidal composition of the present invention can have synergistic effect to the control of grassy weed in wheatland, broad leaved weed and sedge weed.
For realizing object of the present invention, the present invention adopts following technical scheme:
A kind of Herbicidal combinations, is made up of azoles quinoline grass ester and halosulfuronmethyl.
Azoles quinoline grass ester (pinoxaden), molecular formula: C
23h
32n
24, structural formula is shown in that formula is as follows:
Azoles quinoline grass ester belongs to neophyl pyrazoline compounds.Chemical name: 8-(2,6-diethyl-4-aminomethyl phenyl)-1,2,4,5-tetrahydrochysene-7-oxygen-7H-pyrazoles (1,2-d) (1,4,5) oxygen phenodiazine Zhuo-9-base PA ester, the mechanism of action is acetyl-CoA carboxylase inhibitor class, cause fatty acid biosynthesis block, cell division is stopped, and cell membrane is destructurized containing fat, causes weeds dead.There is Uptake and translocation.
Halosulfuronmethyl (halosulfuron-methyl), molecular formula: C
13h
15clN
6o
7s, structural formula is shown in that formula is as follows:
Halosulfuronmethyl is sulfonylurea herbicide, is inhibitor of acetolactate synthetase.By suppressing the ALS enzyme of plant, organize the biosynthesis of branched-chain amino acid, the final synthesis destroying protein, the synthesis of interference DNA and cell division and growth.It can be absorbed by the root of plant, stem and leaf.Be mainly used in preventing and kill off broad leaved weed and sedge weed, as piemarker, storehouse ear, datura, artemisiifolia, Amaranthus retroflexus, flowerofanhour root or herb, knotweed, kitchen garden, black nightshade, Cassia tora, lead a cow, the rhizome of nutgrass flatsedge etc.
As preferably, described azoles quinoline grass ester and halosulfuronmethyl weight ratio are 1:(0.2-8), be more preferably 1:(0.5-5), most preferably be 1:(1-2).
After different herbicidal activity component mixing, each active component is due to the difference of composition, structure, physicochemical property, makes the synergy between each active component be typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and its effect produced is greater than the sum total of each composition effect; And summation action is exactly the sum total that its effect produced equals each composition effect; When antagonism refers to that two kinds of materials act on living organism, a kind of material disturbs the effect of another kind of material, or the effect of interfering with an opponent each other, makes the phenomenon that general effect declines.
Rationally composite between different weed killer herbicide kind, can delay the generation of herbicide resistance on the one hand, can strengthen drug effect on the other hand and reduce dosage, reduce the pollution to environment.Different pesticide species carries out mixed not necessarily can reaching good effect, so need to carry out a large amount of research work.In Recompounded pesticide field, can reach synergistic effect be that proportioning between built reactive composition is closely-related, and be only limitted in certain proportion, this general knowledge to be well known to those skilled in the art, as patent CN102132702A background technology final stage is just clearly recorded.
The present invention is according to Sun Yunpei (Sun Y-P) method, calculate the mixed effect that co-toxicity coefficient evaluates azoles quinoline grass ester and halosulfuronmethyl respectively, result be presented at azoles quinoline grass ester and halosulfuronmethyl weight ratio be 1:(0.2-8) time co-toxicity coefficient be all greater than 120, show that the used in combination of the two has notable synergistic effect.
Therefore, the invention provides the application of described Herbicidal combinations in preparation control cornfield gramineae weed, sedge weed and broadleaf weed herbicide.
Herbicidal combinations of the present invention can be made into multiple formulation of herbicide, is the Herbicidal combinations of the present invention of 1%-80% and pesticidal preparations can accept auxiliary material form by percentage composition.Auxiliary material of the present invention comprises the components such as wetting agent, dispersant, disintegrant, adhesive, thickener, emulsifier, solvent, filler (carrier) and water.
As preferably, described weed killer herbicide is suspending agent, wetting powder or water dispersible granules.
Preferably, when weed killer herbicide of the present invention is wetting powder, the weight ratio shared by each component is: Herbicidal combinations 1%-80%, wetting agent 1%-8%, dispersant 2%-10%, surplus are carrier.Described wetting agent is selected from Morwet EFW, pulls open powder, lauryl sodium sulfate, dodecyl sodium naphthalene sulfonate, neopelex, calcium dodecyl benzene sulfonate, penetrating agent JFC; Dispersant can be selected from Morwet D-425, Morwet D-500, sodium methylene bis-naphthalene sulfonate, dispersing agent MF, sodium lignin sulfonate, calcium lignosulfonate, carboxymethyl cellulose; Carrier can be selected from kaolin, bentonite, potter's clay, diatomite, white carbon, precipitated calcium carbonate.
Preferably, when weed killer herbicide of the present invention is water dispersible granules, the weight ratio shared by each component is: Herbicidal combinations 5%-80%, wetting agent 1%-8%, dispersant 2%-10%, disintegrant 0-5%, adhesive 0-1%, surplus are carrier.Described wetting agent is selected from TERWET1004, SP-2845W, Morwet EFW, pulls open powder, lauryl sodium sulfate, dodecyl sodium naphthalene sulfonate, neopelex, calcium dodecyl benzene sulfonate, penetrating agent JFC, is preferably Morwet EFW, pulls open powder or penetrating agent JFC; Dispersant can be selected from Morwet D-425, Morwet D-500, SP-2836, TERSPERSE 2700, TERSPERSE 2425, DEHSCOFIX 920, NNO(sodium methylene bis-naphthalene sulfonate), dispersing agent MF, sodium lignin sulfonate, calcium lignosulfonate, carboxymethyl cellulose, be preferably MorwetD-500, precipitated calcium carbonate or NNO; Disintegrant is selected from urea, sodium carboxymethylcellulose, ammonium sulfate, mineral salt, silica gel, PEG, SF-04; Adhesive is selected from sucrose, soluble starch, Sodium Polyacrylate, dextrin, xanthans, organobentonite; Carrier can be selected from kaolin, bentonite, potter's clay, diatomite, white carbon, precipitated calcium carbonate.
Preferably, when weed killer herbicide of the present invention is suspending agent, the weight ratio shared by each component is: Herbicidal combinations 1%-40%, wetting agent 1%-10%, dispersant 1%-10%, and thickener 0.1%-2%, water complements to 100%.Described wetting agent is selected from SP-SC3(and holds up space chemical institute purchased from Nanjing), SP-SC29(holds up space chemical institute purchased from Nanjing), SP-2845W(holds up space chemical institute purchased from Nanjing), fat alcohol polyethylene ether (as AEO-3, AEO-5, AEO-9 etc.), polyoxyethylene nonylphenol ether, TWEEN Series (as T-60, T-61, T-65, T-80 etc.), Sulfates (lauryl sodium sulfate), be preferably SP-SC3, AEO-3, T-80 or lauryl sodium sulfate; Dispersant is selected from SP-2728(and holds up space chemical institute purchased from Nanjing), SP-2836(holds up space chemical institute purchased from Nanjing), Sodium Polyacrylate, NNO (sodium methylene bis-naphthalene sulfonate), MF(methyl naphthalene sulfonate formaldehyde condensate), carboxymethyl cellulose, sodium lignin sulfonate, calcium lignosulfonate, be preferably Sodium Polyacrylate, SP-2728, carboxymethyl cellulose or MF; Described thickener is selected from xanthans, polyvinyl alcohol, sodium alginate, starch, organobentonite.
Weed killer herbicide of the present invention and each single dose have carried out wheat weeds controlling experiment, result shows, be less than or equal to the prerequisite of each single dose effective ingredient consumption in weed killer herbicide effective ingredient consumption of the present invention under, the drug effect of controlling weeds of the present invention is higher than each single dose, show that in weed killer herbicide of the present invention, each active component is without cross tolerance, control efficiency has synergistic effect.
Weed killer herbicide of the present invention and each single dose have carried out wheat weeds controlling experiment, result show, equal two singly use the prerequisite of dose under, significantly improve preventive effect.As can be seen here, show that in weed killer herbicide of the present invention, each active component is without cross tolerance, control efficiency has synergistic effect.
From above technical scheme, Herbicidal combinations of the present invention and preparation thereof using azoles quinoline grass ester and halosulfuronmethyl composite as active ingredient, the two is had complementary advantages, synergy, delay the generation of herbicide resistance, to wheat weeds, there is synergistic effect simultaneously, greatly reduce dosage and times for spraying, there is the advantages such as safety, efficient, environmental protection, can be widely used in the control of wheatland crop smothering.
Embodiment
The embodiment of the invention discloses a kind of cornfield herbicidal composition and preparation thereof.Those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Product of the present invention and method are described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope product as herein described is changed or suitably change with combination, realize and apply the technology of the present invention.
Weed killer herbicide of the present invention has wider herbicide spectrum, comprise grassy weed, sedge weed and broad leaved weed, as barnyard grass, nutgrass flatsedge, difformed galingale herb, buttercup, moleplant seed, annual bluegrass, lady's-grass, green foxtail, nutgrass flatsedge, Monochoria korsakowii, angustifolia arrowhead herb, water chestnut, pondweed, knotweed, mexicana, beggar-ticks, chickweed, rhizoma alismatis, needle spikesedge herb, Chinese celery, Japanese Fischer grass, flat bar Fischer grass, Procumbent Falsepimpernel, eleusine indica, broad-leaved Brachiaria Griseb.Asiatic plantain, three-coloured amaranth, piemarker, black nightshade have good preventive effect.Herbicidal combinations of the present invention can be used for wheatland and resists growth that is annual and perennial harmful plants, has very wide herbicide spectrum, can prevent and kill off the grassy weed of wheatland, sedge weed, broad leaved weed.The weeds such as sedge family Herba Cyperi Glomerati, difformed galingale herb, cyperus iria, miliary fimbristylis herb, the rhizome of nutgrass flatsedge, kyllinga brevifolia, fescue, firefly Lin, flat stalk Fischer grass, Japanese Fischer grass.This weed killer herbicide also can prevent and kill off short arrowhead in live wheatland, moleplant seed, barnyard grass, Monochoria korsakowii, mexicana, rhizoma alismatis, chickweed, the weeds such as knotweed and Chinese celery.
When each active component of the present invention is used jointly, there is superior super addition.The activity of bond is higher than the expection summation of each herbicidal activity used.Synergy makes utilization rate reduce, prevents and treats the broad leaved weed of more wide range, grassy weed and sedge, herbicide effect onset is faster, the duration is longer, by only use once or several times to the control of noxious plant better and can widen use the phase.From quality and number of angle, above-mentioned character and advantage for putting into practice control of weeds to keep there is not undesired competitive plant in wheatland, thus guarantee that wheat yield level is necessary.With regard to described character, these new Herbicidal combinations are significantly beyond the state of the art of this area.
The present invention is set forth further below in conjunction with embodiment.
Embodiment 1:1% azoles quinoline grass ester halosulfuronmethyl wetting powder
Azoles quinoline grass ester 0.2%, halosulfuronmethyl 0.8%, Morwet EFW1.0%, Morwet D-4253.0%, precipitated calcium carbonate supply 100%, through air-flow crushing, fully mix, and namely obtain 1% azoles quinoline grass ester halosulfuronmethyl wetting powder.
Embodiment 2:12% azoles quinoline grass ester halosulfuronmethyl wetting powder
Azoles quinoline grass ester 10%, halosulfuronmethyl 2%, penetrating agent JFC 3%, sodium lignin sulfonate 7%, kaolin supply 100%, through air-flow crushing, fully mix, and namely obtain 12% azoles quinoline grass ester halosulfuronmethyl wetting powder.
Embodiment 3:45% azoles quinoline grass ester halosulfuronmethyl wetting powder
Azoles quinoline grass ester 5%, halosulfuronmethyl 40%, lauryl sodium sulfate 3%, carboxymethyl cellulose 7%, precipitated calcium carbonate supply 100%, through air-flow crushing, fully mix, and namely obtain 45% azoles quinoline grass ester halosulfuronmethyl wetting powder.
Embodiment 4:80% azoles quinoline grass ester halosulfuronmethyl wetting powder
Azoles quinoline grass ester 60%, halosulfuronmethyl 20%, pull open powder 4%, NNO10%, precipitated calcium carbonate supply 100%, through air-flow crushing, fully mix, namely obtain 80% azoles quinoline grass ester halosulfuronmethyl wetting powder.
Embodiment 5:1% azoles quinoline grass ester halosulfuronmethyl water dispersible granules
Azoles quinoline grass ester 0.5%, halosulfuronmethyl 0.5%, Morwet EFW2%, Morwet D-5004%, PEG1.5%, sucrose 0.3%, kaolin supply 100%, through air-flow crushing, fully mixing, mediate granulation, drying and screening, obtain 1% azoles quinoline grass ester halosulfuronmethyl water dispersible granules.
Embodiment 6:37% azoles quinoline grass ester halosulfuronmethyl water dispersible granules
Azoles quinoline grass ester 7%, halosulfuronmethyl 30%, SP-2845W3%, SP-28365%, precipitated calcium carbonate supply 100%, through air-flow crushing, fully mixing, mediate granulation, drying and screening, namely obtain 37% azoles quinoline grass ester halosulfuronmethyl water dispersible granules.
Embodiment 7:56% azoles quinoline grass ester halosulfuronmethyl water dispersible granules
Azoles quinoline grass ester 16%, halosulfuronmethyl 40%, penetrating agent JFC 5%, sodium lignin sulfonate 10%, ammonium sulfate 4%, Sodium Polyacrylate 0.7%, precipitated calcium carbonate supply 100%.Through air-flow crushing, fully mixing, mediate granulation, drying and screening, 56% azoles quinoline grass ester halosulfuronmethyl water dispersible granules can be obtained.
Embodiment 8:80% azoles quinoline grass ester halosulfuronmethyl water dispersible granules
Azoles quinoline grass ester 65%, halosulfuronmethyl 15%, TERWET10042%, TERSPERSE24255%, precipitated calcium carbonate supply 100%.Through air-flow crushing, fully mixing, mediate granulation, drying and screening, 80% azoles quinoline grass ester halosulfuronmethyl water dispersible granules can be obtained.
Embodiment 9:1% azoles quinoline grass ester halosulfuronmethyl suspending agent
Azoles quinoline grass ester 0.8%, halosulfuronmethyl 0.2%, SP-SC33%, SP-SC296%, xanthans 2%, water supply 100%.Namely 1% azoles quinoline grass ester halosulfuronmethyl suspending agent is obtained through abundant mixed grinding.
Embodiment 10:24% azoles quinoline grass ester halosulfuronmethyl suspending agent
Azoles quinoline grass ester 4%, halosulfuronmethyl 20%, SP-2845W2%, SP-28365%, polyvinyl alcohol 1%, water supply 100%.Namely 24% azoles quinoline grass ester halosulfuronmethyl suspending agent is obtained through abundant mixed grinding.
Embodiment 11:32% azoles quinoline grass ester halosulfuronmethyl suspending agent
Azoles quinoline grass ester 12%, halosulfuronmethyl 20%, T-604%, MF7%, xanthans 1%, water supply 100%.Namely 32% azoles quinoline grass ester halosulfuronmethyl suspending agent is obtained through abundant mixed grinding.
Embodiment 12:40% azoles quinoline grass ester halosulfuronmethyl suspending agent
Azoles quinoline grass ester 20%, halosulfuronmethyl 20%, AEO-33%, NNO8%, xanthans 1%, water supply 100%.Close through abundant mixed grinding and namely obtain 28% azoles quinoline grass ester halosulfuronmethyl suspending agent.
Embodiment 13: Toxicity Determination is tested
In order to understand azoles quinoline grass ester and halosulfuronmethyl mixture further to the synergy of weeds, carrying out following test and Toxicity Determination is carried out to azoles quinoline grass ester and the mixture of halosulfuronmethyl.
Test method: arrange serial proportioning according to mixture object, each proportioning arranges 5-7 concentration gradient.Typical for wheatland grassy weed (barnyard grass), sedge weed (nutgrass flatsedge) and broad leaved weed (angustifolia arrowhead herb) are cultured to the 2-3 leaf phase for subsequent use.After the weeds cauline leaf process of the number of finishing, calculate preventive effect, then calculate concentration EC in suppression by method of least squares
50(95% confidence interval), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard agent EC50/ reagent agent EC50) × 100
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the toxicity index × mixture of B)
Co-toxicity coefficient (CTC)=[theoretical virulence coefficient (TTI) of mixture actual measurement virulence coefficient (ATI)/mixture] × 100
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80< co-toxicity coefficient (CTC) <120 shows as summation action.
Testing result is in table 1.
Table 1 azoles quinoline grass ester and halosulfuronmethyl measure the synergy of weeds
From the measurement result of table 1, when azoles quinoline grass ester and halosulfuronmethyl weight ratio are 1:(0.2-8) time, co-toxicity coefficient is all greater than 120, has obvious synergistic effect.
Embodiment 14: field control effectiveness test
The weed killer herbicide of the embodiment of the present invention and commercially available 5% azoles quinoline grass emulsifiable concentrate, 75% halosulfuronmethyl water dispersible granules are carried out the controlling experiment of weeds, experimental condition, environment facies with, each process effective ingredient consumption be 3g/ mu (embodiment of the present invention effective ingredient consumption refers to two kinds of active component consumption summations) respectively after medicine 7d, 20d statistics 2 be the results are shown in Table to the preventive effect of grassy weed, broad leaved weed, sedge weed.
Table 2 weed killer herbicide of the present invention and single dose weed killer herbicide preventive effect contrast (%)
From the field control effectiveness test of table 2, under each effective ingredient consumption of weed killer herbicide of the present invention equals the prerequisite of single amount of application, significantly improve with the preventive effect of, sedge weed and broad leaved weed grassy weed, this is consistent with Toxicity Determination result of the test, has obvious synergistic effect.
And from the preventive effect data singly executed, azoles quinoline grass ester to broad leaved weed and sedge weed invalid, and halosulfuronmethyl is invalid to grassy weed, but the preventive effect improved respectively after both are composite grassy weed, sedge weed and broad leaved weed, show that the lifting of preventive effect is not the effect brought owing to directly adding another kind of active component, but two kinds of active component synergies, by facilitation, preventive effect is each other improved and reach beyond thought technique effect.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a cornfield herbicidal composition, is characterized in that, is made up of azoles quinoline grass ester and halosulfuronmethyl, and described azoles quinoline grass ester and halosulfuronmethyl weight ratio are 1:(0.2-8).
2. Herbicidal combinations according to claim 1, is characterized in that, azoles quinoline grass ester and halosulfuronmethyl weight ratio are 1:(0.5-5).
3. Herbicidal combinations according to claim 2, is characterized in that, azoles quinoline grass ester and halosulfuronmethyl weight ratio are 1:(1-2).
4. the application of Herbicidal combinations described in claim 1-3 any one in preparation control cornfield gramineae weed, sedge weed and broadleaf weed herbicide.
5. a weed killer herbicide, is characterized in that, Herbicidal combinations described in the claim 1-4 any one being 1%-80% and pesticidal preparations can accept auxiliary material form by weight percentage.
6. weed killer herbicide according to claim 5, it is characterized in that, described weed killer herbicide is suspending agent, wetting powder or water dispersible granules.
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| CN101252836A (en) * | 2005-09-01 | 2008-08-27 | 杜邦公司 | Liquid sulfonylurea herbicide formulations |
| CN101562978A (en) * | 2006-10-27 | 2009-10-21 | 先正达参股股份有限公司 | Herbicidal compositions |
| CN101616581A (en) * | 2007-03-08 | 2009-12-30 | 杜邦公司 | Liquid sulfonylurea herbicide formulations |
| WO2012107539A1 (en) * | 2011-02-11 | 2012-08-16 | Basf Se | Herbicidal compositions comprising topramezone and pinoxaden |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252836A (en) * | 2005-09-01 | 2008-08-27 | 杜邦公司 | Liquid sulfonylurea herbicide formulations |
| CN101562978A (en) * | 2006-10-27 | 2009-10-21 | 先正达参股股份有限公司 | Herbicidal compositions |
| CN101616581A (en) * | 2007-03-08 | 2009-12-30 | 杜邦公司 | Liquid sulfonylurea herbicide formulations |
| WO2012107539A1 (en) * | 2011-02-11 | 2012-08-16 | Basf Se | Herbicidal compositions comprising topramezone and pinoxaden |
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