CN102365967A - Wheat field herbicide composition and preparation thereof - Google Patents
Wheat field herbicide composition and preparation thereof Download PDFInfo
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- CN102365967A CN102365967A CN2011103944641A CN201110394464A CN102365967A CN 102365967 A CN102365967 A CN 102365967A CN 2011103944641 A CN2011103944641 A CN 2011103944641A CN 201110394464 A CN201110394464 A CN 201110394464A CN 102365967 A CN102365967 A CN 102365967A
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- dicamba
- methyl
- sulphurs
- killer herbicide
- weed killer
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Abstract
The invention relates to the field of pesticide preparations and discloses a wheat field herbicide composition. The herbicide composition is prepared from mesosulfuron methyl and dicamba in a mass ratio of 1:(5-30). The invention also discloses a herbicide prepared from the herbicide composition and auxiliary materials which can be accepted by pesticide preparations, wherein the herbicide composition accounts for 1-90% of the herbicide by weight. The herbicide composition and the preparation thereof have the following beneficial effects: the mesosulfuron methyl and the dicamba are compounded to be used as active ingredients, have complementary advantages, delay the drug resistance of weeds, reduce the environmental pollution and simultaneously improve the drug effects; grass weeds and broadleaf weeds can be effectively controlled through drug administration once, thus reducing the using amount as well as the using types and frequencies of the pesticide; and the herbicide composition and the preparation thereof can be widely applied in the agricultural field.
Description
Technical field
The present invention relates to the pesticidal preparations field, relate to a kind of wheat paddock Herbicidal combinations and preparation thereof specifically.
Background technology
Wheat is one of staple food crop of northern China; Be rich in starch, protein, fat, mineral matter, calcium, iron, thiamine, vitamin b3, nicotinic acid and vitamin A etc.; Be the cereal crops of gross yield second in the world; More than 3,000 ten thousand hectares of the long-term cultivated areas of China are only second to the paddy rice cultivated area.The most of wheat paddock of China always has crop smothering in various degree to take place, and the crop smothering area accounts for more than 55% of wheat planting area, and wherein the serious harm area accounts for 28%, and lost units accounts for 15% of wheat gross yield.Therefore, the usage ratio of domestic wheat paddock weed killer herbicide almost reaches 100%.
Banvel D has interior suction, conduction; With perennial broadleaf weed remarkable preventive effect is arranged to annual; The metabolism decomposition of carrying out that can be very fast after the gramineous plants absorption makes it to lose efficacy; So the pesticide resistance that performance is stronger is safer to gramineous crops such as wheat, corn, millet, paddy rice.Dicamba disappears after microorganism is comparatively fast decomposed in soil, the curling symptom of deformity promptly can occur with the general 24h broad leaved weed in back, and 15-20d is dead.But the wheat paddock weeds are to be that main weeds mixes growth with grassy weed and broad leaved weed, and dicamba can only be prevented and kill off broad leaved weed, and are invalid to grassy weeds such as bromegrass, wild oat, Triticum tauschii.In order to protect wheat to avoid weeds harm in all directions, need to use multiple weed killer herbicide, so just increase the risk of antagonism between each weed killer herbicide, and increased dosage, increased cost, the safety of harm environment and succession crop.
Summary of the invention
In view of this; The object of the invention provides a kind of wheat paddock Herbicidal combinations and preparation thereof; Make the present composition and preparation thereof can prevent and kill off grassy weed and broad leaved weeds such as bromegrass, wild oat simultaneously, and have synergistic effect preventing and kill off grassy weeds such as bromegrass, wild oat.
For realizing the object of the invention, the present invention adopts following technical scheme:
A kind of wheat paddock Herbicidal combinations is formed with dicamba by methyl two sulphurs are grand, and said methyl two sulphurs mass ratio grand and dicamba is 1: 5-30 is preferably 1: 10-25, more preferably 1: 18-22 most preferably is 1: 20.
Dicamba, chemical name are 3, and 6-two chloro-O-Anisic Acids belong to steroids benzene oxycarboxylic acid weed killer herbicide.Dicamba is used for spraying behind the seedling, and medicament can conduct through phloem very soon by the leaf of weeds, stem, root absorption up and down, focuses mostly at meristematic tissue and the vigorous position of metabolic activity, hinders the normal activity of plant hormone, thereby makes its death.Be used to prevent and kill off the annual and perennial broadleaf weeds of crop Tanaka such as asparagus, corn, Chinese sorghum, wheat, sugarcane, for example pig seedling grass, corn-bind, lamb's-quarters, ox chickweed, common vetch, descurainia sophia (l.) webb ex prantl, Siberian cocklebur, Bao Shuocao, field bindweed, meadow pine, carp intestines etc.
Methyl two sulphurs are grand, and chemical name is 2-[3-(4,6-dimethoxypyridin-2-yl) urea sulphonyl]-4-Methanesulfomide methyl toluate, belongs to high activity sulfonylurea herbicide after seedling.Its mechanism of action is the same with other sulfonylurea herbicide to be the inhibitor of acetolactate synthestase (ALS).After weeds root and leaf absorption, in plant, conduct, weeds are stopped growing, then withered.Methyl two sulphurs swell to annual gramineous weed wild oat, amur foxtail, barnyard grass is careless, careless firmly, caput is careless, Drilgrass etc. has good preventive effect.
Different herbicidal activity components mix each active component of back because the difference of composition, structure, physicochemical property makes that the synergy between each active component is typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and the effect of its generation is greater than the sum total of each composition effect; And being exactly the effect of its generation, summation action equals the sum total of each composition effect; Antagonism is meant that a kind of material disturbed the effect of another kind of material when two kinds of materials acted on living organism, or the effect of interfering with an opponent each other, the phenomenon that general effect is descended.
The present invention is according to Sun Yunpei (Sun Y-P) method, and calculating co-toxicity coefficient evaluation methyl two sulphurs are grand uses effect with dicamba, and the result shows co-toxicity coefficient all greater than 120, shows that the mixing use of the two has the notable synergistic effect.
In addition; The present invention has carried out the control of weeds test to each single-activity composition in said Herbicidal combinations and the Herbicidal combinations respectively; And each active component consumption is less than this absorption of active ingredient of single use in the said Herbicidal combinations, and the result shows that the preventive effect of Herbicidal combinations according to the invention is higher than the preventive effect of single use active component; Show that each active component does not have cross tolerance in the Herbicidal combinations according to the invention, control efficiency has synergistic effect.
In addition; The present invention also provides a kind of weed killer herbicide, is made up of acceptable auxiliary material on Herbicidal combinations according to the invention and the pesticidal preparations, and the percentage by weight that said Herbicidal combinations accounts for said weed killer herbicide is 1-90%; Be preferably 20-60%, more preferably 35-50%.
Weed killer herbicide according to the invention can be processed various formulations through selecting corresponding carrier, surfactant, dispersant or other agricultural agents for use, and this is known in the field.As preferably, said weed killer herbicide is a wetting powder, and the percentage by weight that Herbicidal combinations wherein according to the invention accounts for said wetting powder is 20-50%.Wetting powder according to the invention is by 20-50% active component, 4-10% auxiliary agent, and surplus is a filler, obtains through the comminution by gas stream hybrid process, and fineness meets the spraying requirement, and 98% through 325 orders.
Weed killer herbicide according to the invention also is preferably water dispersible granules, and the percentage by weight that Herbicidal combinations wherein according to the invention accounts for said water dispersible granules is 10-90%.Water dispersible granules according to the invention is by 10-90% active component, 1-6% wetting agent, 1-8% dispersant, 0.1-5% interleaving agent, 1-80% carrier, and water is mediated through mixing, adding, extruder grain forms.Product disintegration, dispersion, the equal symbol water dispersible granules of performance technical standard such as wetting.
Weed killer herbicide according to the invention also is preferably suspending agent, and the percentage by weight that Herbicidal combinations wherein according to the invention accounts for said suspending agent is 10-85%.Suspending agent according to the invention is by 10-85% active component, dispersant 1-10%, thickener 0.5-5%, antifoaming agent 0.1-1%, antifreezing agent 1-5% mixing sand milling, spray-dried acquisition.Performances such as product granularity, suspensibility, wetability meet the requirement of suspending agent technical standard.
Weed killer herbicide according to the invention also is preferably missible oil, and the percentage by weight that herbicidal composition wherein according to the invention accounts for said missible oil is 20-90%.Missible oil according to the invention is by 20-90% active component, solvent 5-70%, cosolvent 1-15%, emulsifier 5-15%, through mixing acquisition.Performances such as product dispersiveness, stability meet missible oil formulation technical standard.
Single agent that the weed killer herbicide and the single-activity composition of the present invention's preparation are processed contrasts; With each active component consumption is criterion calculation; Under the prerequisite of each active component consumption in weed killer herbicide according to the invention less than each single agent active component consumption; The preventive effect of weed killer herbicide according to the invention is higher than the preventive effect of single agent, and does not have cross tolerance, can effectively prevent and kill off grassy weed and broad leaved weed simultaneously.
Can know that by above technical scheme Herbicidal combinations according to the invention and preparation thereof are grand composite as active ingredient with dicamba with methyl two sulphurs, the two mutual supplement with each other's advantages; Delay the drug-fast generation of weeds; And reduce pollution to environment, and improving drug effect simultaneously, a drug can effectively be prevented and treated grassy weed and broad leaved weed; Reduce the usage amount and use kind, number of times of agricultural chemicals, can be widely used in agriculture field.
Embodiment
The embodiment of the invention discloses a kind of wheat paddock Herbicidal combinations and preparation thereof.Those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is that all similarly replace and change apparent to those skilled in the art, they all are regarded as and are included in the present invention.Product of the present invention is described through preferred embodiment, and the related personnel obviously can change or suitably change and combination product as herein described in not breaking away from content of the present invention, spirit and scope, realizes and use technology of the present invention.
Embodiment 1: Herbicidal combinations according to the invention is to the efficiency test of weeds
Test in one wheat paddock of Xinxiang, Henan and carry out, Herbicidal combinations is to be active ingredient with grand former medicine of 93% methyl, two sulphurs and the former medicine of 98% dicamba, adds a certain amount of additive compound and forms.Wherein, every processing repeats for 4 times, and the sub-district area is 20m
2, district's group is arranged at random, in wheat 3-6 leaf phase medication, evenly sprays.Add up all kinds of weeds strain numbers before the dispenser respectively, added up the dead strain number of weeds after the dispenser in 10 days respectively.Test is handled and formulation rate is seen table 1, prevents and treats the result and sees table 2.Preventive effect is calculated according to following formula:
Preventive effect (%)=1-(the preceding weeds strain number of ÷ dispenser is counted in the weeds strain after the dispenser) * 100%
Table 1 test is handled and formulation rate
| Handle | Supply the reagent agent | Amount of application (g/ hectare) |
| 1 | 93% methyl, two sulphurs swell former medicine | 14 |
| 2 | The former medicine of 98% dicamba | 200 |
| 3 | 93% methyl, two sulphurs swell former medicine+former medicine of 98% dicamba | 8+80 |
| 4 | 93% methyl, two sulphurs swell former medicine+former medicine of 98% dicamba | 9+100 |
| 5 | 93% methyl, two sulphurs swell former medicine+former medicine of 98% dicamba | 9+180 |
| 6 | 93% methyl, two sulphurs swell former medicine+former medicine of 98% dicamba | 10+150 |
| 7 | 93% methyl, two sulphurs swell former medicine+former medicine of 98% dicamba | 11+100 |
| 8 | 93% methyl, two sulphurs swell former medicine+former medicine of 98% dicamba | 11+200 |
| 9 | 93% methyl, two sulphurs swell former medicine+former medicine of 98% dicamba | 13+180 |
| 10 | Clear water |
Table 2 Herbicidal combinations according to the invention is to the efficiency test of weeds
Can know by table 2 result; Active ingredient methyl two sulphurs are grand to be mixed with dicamba; Each composition consumption consumption grand with single use methyl two sulphurs or dicamba is compared minimizing; But the preventive effect of bromegrass, wild oat, shepherd's purse, descurainia sophia (l.) webb ex prantl is higher than the preventive effect of the grand or dicamba of single use methyl two sulphurs, simultaneously the overall preventive effect of grassy weed and broad leaved weed is higher than also that single use methyl two sulphurs swell or the overall preventive effect of dicamba, show that two kinds of active components of Herbicidal combinations according to the invention do not have antagonism; And improved preventive effect, reduced dosage and types of medicines, number of times.
In addition; Can know from handling 1 and 2 result of the test; Herbicidal combinations according to the invention obtains owing to another active component that is added directly acts on weeds the synergy result of control grassy weed; But, strengthened the effect of controlling weeds each other because two kinds of composite backs of active component interact.
Embodiment: 2:20% methyl two sulphurs swell the dicamba wetting powder
With grand former medicine of 93% methyl, two sulphurs and the former medicine of 98% dicamba is active raw materials, gets the grand former medicine 10kg of methyl two sulphurs, and the former medicine 195kg of dicamba, auxiliary agent 60kg, filler 735kg get the wetting powder of 1000kg20% through the comminution by gas stream hybrid process.
Single agent that the weed killer herbicide and the single-activity composition of present embodiment preparation are processed contrasts; With each active component consumption is criterion calculation; Under the prerequisite of each active component consumption in weed killer herbicide according to the invention less than each single agent active component consumption; The preventive effect of weed killer herbicide according to the invention is higher than the preventive effect of single agent, and does not have cross tolerance, can effectively prevent and kill off grassy weed and broad leaved weed simultaneously.
Embodiment 3:30% methyl two sulphurs swell the dicamba wetting powder
With grand former medicine of 93% methyl, two sulphurs and the former medicine of 98% dicamba is active raw materials, gets the grand former medicine 15kg of methyl two sulphurs, and the former medicine 292kg of dicamba, auxiliary agent 80kg, filler 613kg get the wetting powder of 1000kg30% through the comminution by gas stream hybrid process.
Single agent that the weed killer herbicide and the single-activity composition of present embodiment preparation are processed contrasts; With each active component consumption is criterion calculation; Under the prerequisite of each active component consumption in weed killer herbicide according to the invention less than each single agent active component consumption; The preventive effect of weed killer herbicide according to the invention is higher than the preventive effect of single agent, and does not have cross tolerance, can effectively prevent and kill off grassy weed and broad leaved weed simultaneously.
Embodiment 4:40% methyl two sulphurs swell the dicamba wetting powder
With grand former medicine of 93% methyl, two sulphurs and the former medicine of 98% dicamba is active raw materials, gets the grand former medicine 18kg of methyl two sulphurs, and the former medicine 392kg of dicamba, auxiliary agent 150kg, filler 440kg get the wetting powder of 1000kg40% through the comminution by gas stream hybrid process.
Single agent that the weed killer herbicide and the single-activity composition of present embodiment preparation are processed contrasts; With each active component consumption is criterion calculation; Under the prerequisite of each active component consumption in weed killer herbicide according to the invention less than each single agent active component consumption; The preventive effect of weed killer herbicide according to the invention is higher than the preventive effect of single agent, and does not have cross tolerance, can effectively prevent and kill off grassy weed and broad leaved weed simultaneously.
Embodiment: 5:35% methyl two sulphurs swell the dicamba water dispersible granules
With grand former medicine of 93% methyl, two sulphurs and the former medicine of 98% dicamba is active raw materials, gets the grand former medicine 15kg of methyl two sulphurs, the former medicine 343kg of dicamba; Wetting agent 20kg, dispersant 50kg, interleaving agent 20kg; Carrier 552kg; Mix behind the comminution by gas stream, add water kneading, extruder grain, after dry screened, make the 1000kg35% water dispersible granules.
Single agent that the weed killer herbicide and the single-activity composition of present embodiment preparation are processed contrasts; With each active component consumption is criterion calculation; Under the prerequisite of each active component consumption in weed killer herbicide according to the invention less than each single agent active component consumption; The preventive effect of weed killer herbicide according to the invention is higher than the preventive effect of single agent, and does not have cross tolerance, can effectively prevent and kill off grassy weed and broad leaved weed simultaneously.
Embodiment 6:60% methyl two sulphurs swell the dicamba suspending agent
With grand former medicine of 93% methyl, two sulphurs and the former medicine of 98% dicamba is active raw materials, gets the grand former medicine 30kg of methyl two sulphurs, the former medicine 583kg of dicamba; Wetting agent 40kg, dispersant 70kg, thickener 50kg; Carrier 227kg mixing frosted, spray-dried acquisition 1000kg60% suspending agent.
Single agent that the weed killer herbicide and the single-activity composition of present embodiment preparation are processed contrasts; With each active component consumption is criterion calculation; Under the prerequisite of each active component consumption in weed killer herbicide according to the invention less than each single agent active component consumption; The preventive effect of weed killer herbicide according to the invention is higher than the preventive effect of single agent, and does not have cross tolerance, can effectively prevent and kill off grassy weed and broad leaved weed simultaneously.
Embodiment 7:50% methyl two sulphurs swell dicamba missible oil
With grand former medicine of 93% methyl, two sulphurs and the former medicine of 98% dicamba is active raw materials, gets the grand former medicine 18kg of methyl two sulphurs, the former medicine 508kg of dicamba; Solvent 100kg, cosolvent 60kg, emulsifier 50kg; Carrier 264kg mixes, and obtains 1000kg50% missible oil.
Single agent that the weed killer herbicide and the single-activity composition of present embodiment preparation are processed contrasts; With each active component consumption is criterion calculation; Under the prerequisite of each active component consumption in weed killer herbicide according to the invention less than each single agent active component consumption; The preventive effect of weed killer herbicide according to the invention is higher than the preventive effect of single agent, and does not have cross tolerance, can effectively prevent and kill off grassy weed and broad leaved weed simultaneously.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (8)
1. a wheat paddock Herbicidal combinations is characterized in that, forms with dicamba by methyl two sulphurs are grand, and the grand mass ratio with dicamba of said methyl two sulphurs is 1: 5-30.
2. according to the said Herbicidal combinations of claim 1, it is characterized in that the grand mass ratio with dicamba of said methyl two sulphurs is 1: 10-25.
3. according to the said Herbicidal combinations of claim 2, it is characterized in that the grand mass ratio with dicamba of said methyl two sulphurs is 1: 18-22.
4. according to the said Herbicidal combinations of claim 3, it is characterized in that in weight portion, the grand mass ratio with dicamba of said methyl two sulphurs is 1: 20.
5. a wheat paddock weed killer herbicide is characterized in that, is made up of acceptable auxiliary material on said Herbicidal combinations of claim 1 and the pesticidal preparations, and the percentage by weight that said Herbicidal combinations accounts for said weed killer herbicide is 1-90%.
6. according to the said weed killer herbicide of claim 5, it is characterized in that the percentage by weight that said Herbicidal combinations accounts for said weed killer herbicide is 20-60%.
7. according to the said weed killer herbicide of claim 6, it is characterized in that the percentage by weight that said Herbicidal combinations accounts for said weed killer herbicide is 35-50%.
8. according to the said weed killer herbicide of claim 5, it is characterized in that it is wetting powder, water dispersible granules, suspending agent or missible oil.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102550585A (en) * | 2012-01-16 | 2012-07-11 | 河北博嘉农业有限公司 | Mesosulfuron-methyl compound herbicide |
| WO2013159731A1 (en) | 2012-04-27 | 2013-10-31 | Rotam Agrochem International Company Limited | Agrochemical compositions for reducing agrochemical residues |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102550585A (en) * | 2012-01-16 | 2012-07-11 | 河北博嘉农业有限公司 | Mesosulfuron-methyl compound herbicide |
| WO2013159731A1 (en) | 2012-04-27 | 2013-10-31 | Rotam Agrochem International Company Limited | Agrochemical compositions for reducing agrochemical residues |
| US9936696B2 (en) | 2012-04-27 | 2018-04-10 | Rotam Agrochem International Company Limited | Agrochemical compositions for reducing agrochemical residues |
| US10206395B2 (en) | 2012-04-27 | 2019-02-19 | Rotam Agrochem International Company Limited | Agrochemical compositions for reducing agrochemical residues |
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Application publication date: 20120307 |