CN105935056B - Herbicidal combinations and its application - Google Patents
Herbicidal combinations and its application Download PDFInfo
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- CN105935056B CN105935056B CN201610112847.8A CN201610112847A CN105935056B CN 105935056 B CN105935056 B CN 105935056B CN 201610112847 A CN201610112847 A CN 201610112847A CN 105935056 B CN105935056 B CN 105935056B
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- Prior art keywords
- nicosulfuron
- herbicidal combinations
- component
- trifloxysulfuron
- flazasulfuron
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
Abstract
The invention discloses a kind of Herbicidal combinations and its applications, are related to technical field of pesticide combination.The active ingredient of the Herbicidal combinations includes component A, component B;Wherein, A is nicosulfuron or its salt, and B is any one or more in flazasulfuron or its salt, trifloxysulfuron or its salt;The weight ratio of the component A and component B is 1 20:20‑1.There are four the characteristics of aspect for the Herbicidal combinations tool of the present invention:1. the composition can effectively reduce the amount of application of each single dose, quick-acting is fast, and the lasting period is long, delays the drug resistance of plant;2. the composition can efficiently prevent and kill off above the average age for marriage broad leaved weed, nutgrass flatsedge and the grassy weed below 7 leaves, there is synergistic function;3. the composition can expand herbicide controlling spectrum;4. the composition is highly safe to lawn.
Description
Technical field
The invention belongs to technical field of pesticide combination, are related to Herbicidal combinations and its application.
Background technology
With rapid development of economy, requirement of the people to urban afforestation is higher and higher, and domestic lawn area is also continuous
Increase, weeds prevents and kill off as the problem of turf management personnel maximum in lawn.The weeds in lawn are mostly manually pulled out now
It removes, input is big, and efficiency is low, and effect is poor.It is the effective measures for controlling turf weed to spray safely and effectively herbicide.
Nicosulfuron, English name nicosulfuron, molecular formula:C15H18N6O6S, chemical name:2- (4,6- diformazans
Oxygroup pyrimidine -2 --amino formamido group sulphonyl)-N, N- dimethyl nicotinamides, shown in structure such as formula (I).Nicosulfuron is
High efficiency corn herbicide, with can effectively prevent and kill off a variety of annual gramineous weeds, broad leaved weed in corn field after low dosage bud
And sedge weed.It is absorbed rapidly by leaf and root, and passes through xylem and bast conducts rapidly.It is synthesized by acetolactic acid
Enzyme prevents the synthesis of branched-chain amino acid.It stops growing immediately using rear weeds, 4-5 days young leaves fade, necrosis, and gradually extend
To entire plant, plant death in 20-25 days after being handled under general condition.Nicosulfuron is mainly used for cornfield weeding, to grass
Section weeds and part broadleaved herb preventive effect are preferable, medium to nutgrass flatsedge preventive effect, bad to part broadleaved herb preventive effect.There has been no by the phonetic sulphur of cigarette
Grand patent, document report for Kill weeds.
Flazasulfuron, English name flazasulfuron, chemical name for 1- (4,6- dimethoxypyridin -2- bases) -
3- (3- trifluoromethyl -2- pyridine sulfonyl sulfonyls) urea, molecular weight 407.32, chemical formula C13H12F3N5O5S, structure such as formula (II)
It is shown.Medicament can be absorbed rapidly by the cauline leaf of weeds and root system, and conduct to whole strain weeds, mainly inhibit acetolactate synthestase
(ALS) activity, and then inhibit the synthesis of the branched-chain amino acid (leucine, isoleucine) in weeds body, hinder protein
Synthesis and other metabolic processes cause weeds dead.To broadleaved herb, nutgrass flatsedge and the barnyard grass of grassy weed, green bristlegrass effect compared with
It is good but poor to eleusine indica, lady's-grass effect.
Trifloxysulfuron, English name Trifloxysulfuron, chemical name for 1- (4,6- dimethoxypyridins-
2- yls) -3- [3- (2,2,2- trifluoro ethoxy) -2- pyridine sulfonyl sulfonyls] urea, chemical formula C14H14F3N5O6S, molecular weight are
437.3511, shown in structure such as formula (III).Trifloxysulfuron belongs to sulfonylurea herbicide, and the mechanism of action is inhibits weeds
The all absorbable trifloxysulfuron in the bioactivity of middle acetolactate synthestase (ALS), the cauline leaf of weeds and root, and by wood
Matter portion and bast fast transfer are to interior branch, root and apical meristem, and so as to kill weeds, weeds show as growth and stop
Only, wilting flavescence, apical meristem are dead, and subsequent weeds were in death in 1-3 weeks.It is mainly used for preventing and kill off broad leaved weed and Cyperaceae
Weeds especially have special efficacy to the malignant weed rhizome of nutgrass flatsedge.The grassy weeds preventive effect such as lady's-grass, barnyard grass, eleusine indica, green bristlegrass is poor.
Herbicide kind containing single-activity component on control of weeds there are it is different degrees of the defects of, such as continuous administration
Weeds easily develop immunity to drugs afterwards, and herbicide controlling spectrum narrows, the problems such as causing environmental pollution.
Rationally compounding is to improve preventive effect to herbicide, expands herbicide controlling spectrum or widens usage time, weed community is delayed to drill
The speed replaced reduces the resistance risk that pesticide single use is brought, mitigates the pollution to environment, reduces use cost and reduces and removes
A kind of careless remaining effective ways of agent.
Invention content
The technical problem to be solved in the present invention is to provide a kind of herbicidal effect is good, drug cost is low, broad weed-killing spectrum, to lawn
The significant Herbicidal combinations of control effect of weeds.
In order to solve the above technical problems, present invention offer technical solution is as follows:
Herbicidal combinations of the present invention, active ingredient include component A and component B, wherein, component A is nicosulfuron
Or its salt, component B are any one or more in flazasulfuron or its salt, trifloxysulfuron or its salt, the component A and group
The weight ratio for dividing B is 1-20:20-1;Further weight ratio is 1-10:10-1.
Herbicidal combinations active ingredient of the present invention can include nicosulfuron, flazasulfuron and trifloxysulfuron,
Weight ratio is 1-20:1-20:1-20;Further 1-10:1-10:1-10.
In Herbicidal combinations of the present invention except group of effective components exceptionally, receptible auxiliary element in pesticide is further included.
Receptible auxiliary element in pesticide, including not generating chemistry with any one in nicosulfuron, flazasulfuron, trifloxysulfuron
Effect or the component adversely affected to the drug effect performance of the present invention, such as dispersant conventional use of in pesticide, diffusant, defoaming
The auxiliary agents such as agent, wetting agent, disintegrant, excipient.
According to different use needs or applying environment condition, Herbicidal combinations of the present invention are any dose in pesticide
Type, such as corresponding wettable powder, suspending agent, suspended emulsion, microemulsion, water dispersible granules, oil-suspending agent can be made.
Herbicidal combinations of the present invention can be provided in the form of finished product preparation, i.e., each substance has mixed in Herbicidal combinations
Closing the either ingredient of Herbicidal combinations can also be provided with unit dose form and directly directly mixed in bucket or tank using preceding, so
It is diluted to required concentration afterwards.
Herbicidal combinations of the present invention are applied to the method for controlling weeds, and the application of weight ratio described above range respectively has
Imitate component nicosulfuron, flazasulfuron, trifloxysulfuron, applied after mixing according to the above ratio, be administered simultaneously in proportion or by
Ratio is applied successively.Herbicidal combinations of the present invention carry out after soil treatment or weeds emergence can be carried out before weeds emerge
Cauline leaf process.
Herbicidal combinations of the present invention, available for preparing the pesticidal preparations of controlling weeds.Particularly useful for making prevention
The pesticidal preparations of turf weed especially prevent above the average age for marriage broad leaved weed, nutgrass flatsedge and/or the pesticide system of grass tree weeds below 7 leaves
Agent.
Lawn of the present invention is preferably warm-season turf.The warm-season turf can be Korea lawn grass, Bermuda grass, day
Hall grass, Manila, eremochloa ophiuroides, Dichondra Repens Turf etc..
Herbicidal combinations of the present invention can be used in lawn preventing and kill off broad leaved weed, nutgrass flatsedge, grass tree weeds, with obvious effects
Better than nicosulfuron, flazasulfuron, trifloxysulfuron single dose, there is preferable application prospect and promotional value.
The present invention has synergy by different role mechanism, the compounding of two kinds of active principles of different role mode
Effect can reduce pesticide dosage, reduce use cost.
It is an advantage of the invention that it will be evident that is mainly manifested in:
1. Herbicidal combinations of the present invention, without any antagonism between each ingredient, synergistic effect is notable.
2. Herbicidal combinations expand herbicide controlling spectrum compared with single active ingredient is used alone, herbicidal effect is more preferable.
3. Herbicidal combinations can prevent and kill off above the average age for marriage broad leaved weed, nutgrass flatsedge or the grass tree weeds below 7 leaves, weeding can be shortened
The quick-acting phases, extend the lasting period, a dispenser can save Ji Wucao from damage.
4. low toxicity to people, bird, poultry and beneficial organism safety, is conducive to environmental protection and keeps ecological balance.
5. easy to operate, compound synergic can reduce the usage amount of each single dose, at low cost, easily promote.
Specific embodiment
To make the technical problem to be solved in the present invention, technical solution and advantage clearer, specific embodiment will be used below
It is described in detail, but the present invention is limited to absolutely not these examples.As described below is only the preferable embodiment of the present invention, is only used to
It explains the present invention, therefore can not be interpreted as the limitation to the scope of the claims of the present invention.It is it should be pointed out that all the present invention's
All any modification, equivalent and improvement done within spirit and principle etc., should all be included in the protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Pesticide is made in different agriculture the effective elements of the medicines compounding, be current exploitation and develops novel pesticide and prevention agriculturally
A kind of effective and quick way of resistance.After the pestsides synthesis of different cultivars, a large amount of three kinds of type of action are typically exhibited:Phase
Add effect, synergistic effect and antagonism.Compound synergic is formulated well, can significantly improve practical control effect, and expansion is killed
Grass spectrum, reduces the usage amount of pesticide, is the important means of integrated control so as to help to delay the generation speed of drug resistance.
The present composition is using nicosulfuron as a kind of active ingredient (A), any one in flazasulfuron, trifloxysulfuron
For another active ingredient (B), form binary built, between them combination there is apparent synergistic make to control of weeds
With rather than just the simple superposition of two kinds of pharmacy effects, this can be clearly understood that from following test result.
(1) Toxicity Determination is tested
Assay method:Indoor pot method, the rhizome of nutgrass flatsedge, lady's-grass, three leaf of water peanut wholeheartedly when with spray tower carry out cauline leaf process.
15d measures fresh weight inhibition rate, calculates ED50 values, co-toxicity coefficient after medicine.Compare nicosulfuron, flazasulfuron, trifloxysulfuron with
And the activity of weeding after their compoundings, determine optimum proportioning range.
Two-spot herbicide mode of application is evaluated with Sun Pei clouds co-toxicity coefficient method, formula is as follows:
In formula:
ATI-mixture actual measurement toxicity index;
The ED50/90 of S-standard agent;
The ED50/90 of M-mixture;
TTI=A × PA+B×PB
In formula:
TTI-mixture theoretical toxicity index;
A-A medicament toxicity index;
B-B medicament toxicity index;
Percentage composition of PA-A medicaments in mixture;
Percentage composition of PB-B medicaments in mixture;
In formula:
CTC-co-toxicity coefficient;
ATI-mixture actual measurement toxicity index;
TTI-mixture theoretical toxicity index.
Criterion:CTC > 120 are synergistic effect;CTC < 80 are antagonism;80 < CTC < 120 are summation action.
1 Toxicity Determination of table tests (one)
The Toxicity Determination result table 1 is shown, in A:B weight ratios 1-20:In the range of 20-1, nicosulfuron and the phonetic sulphur of pyridine
After grand compounding, there is apparent synergistic function;A:B weight ratios are 1-20:In the range of 20-1, co-toxicity coefficient is more than 120,
Particularly A:B weight ratios are 1-10:In the range of 10-1, it is more notable that co-toxicity coefficient is more than 240.0 synergistic effects.The drug effect of the present invention
Significantly better than respective single dose routine tests effect, and herbicide controlling spectrum can be expanded.
2 Toxicity Determination of table tests (two)
The Toxicity Determination result table 2 is shown, in A:B weight ratios 1-20:In the range of 20-1, nicosulfuron and trifluoro pyridine
After the grand compounding of sulphur, there is apparent synergistic function;A:B weight ratios are 1-20:In the range of 20-1, co-toxicity coefficient is more than
120, particularly A:B weight ratios are 1-10:In the range of 10-1, it is more notable that co-toxicity coefficient is more than 203.0 synergistic effects.The present invention's
Drug effect is significantly better than respective single dose routine tests effect, and can expand herbicide controlling spectrum.
For the present composition with nicosulfuron (A) for a kind of active ingredient, flazasulfuron (B) is another active ingredient, three
Grand fluorine pyridine sulphur is third active ingredient (C), carries out ternary built, and ternary recompounded composite has control of weeds apparent collaboration
Synergistic effect, rather than just the simple superposition of three kinds of pharmacy effects, this can be clearly understood that from following test result.
3 Toxicity Determination of table tests (three)
The Toxicity Determination result table 3 is shown, in A:B:C weight ratios 1-20:1-20:In the range of 1-20, nicosulfuron, pyridine
Sulfometuron Methyl is with after trifloxysulfuron ternary built, having apparent synergistic function;A:B:C weight ratios are 1-20:1-20:1-
In the range of 20, co-toxicity coefficient is more than 120, particularly A:B:C weight ratios are 1-10:1-10:In the range of 1-10, co-toxicity coefficient is more than
215.6 synergistic effect is more notable.The drug effect of the present invention can expand herbicide significantly better than respective single dose routine tests effect
Spectrum.
To make the technical problem to be solved in the present invention, technical solution and advantage clearer, specific embodiment will be used below
It is described in detail, but the present invention is limited to absolutely not these examples.As described below is only the preferable embodiment of the present invention, is only used to
It explains the present invention, therefore can not be interpreted as the limitation to the scope of the claims of the present invention.It is it should be pointed out that all the present invention's
All any modification, equivalent and improvement done within spirit and principle etc., should all be included in the protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
All features or disclosed all methods disclosed in this specification or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.Any feature disclosed in this specification, except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
The Herbicidal combinations of the present invention can be prepared into any one dosage form of suitable agricultural use by known method, than
Preferable dosage form is wettable powder, aqueous emulsion, microemulsion, suspending agent, water dispersible granules.Percentage is attached most importance in all formulas
Measure percentage.The processing technology of the various dosage forms of the present composition is the prior art, can be varied from according to different situations.
Embodiment 1:21% nicosulfuron flazasulfuron wettable powder (1:20)
Preparation method:Active ingredient nicosulfuron, flazasulfuron and auxiliary agent, filler are mixed by above-mentioned formula, machinery
It is uniformly mixed, you can corresponding Wettable pesticide powder is made through air-flow crushing again after crushing.
Embodiment 2:14% nicosulfuron flazasulfuron microemulsion (1:13)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Embodiment 3:11% nicosulfuron flazasulfuron microemulsion (1:10)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Embodiment 4:20% nicosulfuron flazasulfuron aqueous emulsion (1:1)
Preparation method:By nicosulfuron, flazasulfuron, C9, fatty alcohol polyoxyethylene ether, dodecyl sodium sulfonate ammonium in preparation
It is stirred evenly in kettle, then is put in proportion into unclassified stores, after stirring 1 hour, be using high-speed shearing machine 6000r/min shearings 30min
It can.
Embodiment 5:11% nicosulfuron flazasulfuron water dispersible granules (10:1)
Preparation method:Active ingredient nicosulfuron, flazasulfuron and auxiliary agent, filler are mixed by above-mentioned formula, machinery
It is uniformly mixed again through air-flow crushing after crushing, adds water through being granulated, and dry, you can corresponding water dispersible granules are made.
Embodiment 6:14% nicosulfuron flazasulfuron suspended emulsion (13:1)
Preparation method:Active ingredient nicosulfuron, flazasulfuron and auxiliary agent, water are mixed by above-mentioned formula, through at a high speed
Shear-mixed is uniform, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can be made into corresponding suspension
Agent pesticide.
Embodiment 7:21% nicosulfuron flazasulfuron suspending agent (20:1)
Preparation method:Active ingredient nicosulfuron, flazasulfuron and auxiliary agent, water are mixed by above-mentioned formula, through at a high speed
Shear-mixed is uniform, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can be made into corresponding suspension
Agent pesticide.
Embodiment 8:21% nicosulfuron trifloxysulfuron wettable powder (1:20)
Preparation method:Active ingredient nicosulfuron, trifloxysulfuron and auxiliary agent, filler are mixed by above-mentioned formula, machine
It is uniformly mixed, you can corresponding Wettable pesticide powder is made through air-flow crushing again after tool crushing.
Embodiment 9:11% nicosulfuron trifloxysulfuron microemulsion (1:10)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Embodiment 10:18% nicosulfuron trifloxysulfuron microemulsion (5:13)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Embodiment 11:20% nicosulfuron trifloxysulfuron aqueous emulsion (1:1)
Preparation method:By nicosulfuron, trifloxysulfuron, C9, fatty alcohol polyoxyethylene ether, dodecyl sodium sulfonate ammonium in
It is stirred evenly in kettle processed, then is put in proportion into unclassified stores, after stirring 1 hour, 30min is sheared using high-speed shearing machine 6000r/min
.
Embodiment 12:18% nicosulfuron trifloxysulfuron suspended emulsion (13:5)
Preparation method:Active ingredient nicosulfuron, trifloxysulfuron and auxiliary agent, water are mixed by above-mentioned formula, through height
Fast shear-mixed is uniform, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can be made into corresponding outstanding
Floating agent pesticide.
Embodiment 13:11% nicosulfuron trifloxysulfuron water dispersible granules (10:1)
Preparation method:Active ingredient nicosulfuron, trifloxysulfuron and auxiliary agent, filler are mixed by above-mentioned formula, machine
It is uniformly mixed again through air-flow crushing after tool crushing, adds water through being granulated, and dry, you can corresponding water dispersible granules are made.
Embodiment 14:21% nicosulfuron trifloxysulfuron suspending agent (20:1)
Preparation method:Active ingredient nicosulfuron, trifloxysulfuron and auxiliary agent, water are mixed by above-mentioned formula, through height
Fast shear-mixed is uniform, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can be made into corresponding outstanding
Floating agent pesticide.
Embodiment 15:22% nicosulfuron flazasulfuron trifloxysulfuron wettable powder (1:1:20)
Preparation method:By above-mentioned formula by active ingredient nicosulfuron, flazasulfuron, trifloxysulfuron and auxiliary agent, fill out
Material mixes, and is uniformly mixed, you can corresponding Wettable pesticide powder is made through air-flow crushing again after mechanical crushing.
Embodiment 16:21% nicosulfuron flazasulfuron trifloxysulfuron microemulsion (10:10:1)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Embodiment 17:30% nicosulfuron flazasulfuron trifloxysulfuron aqueous emulsion (1:1:1)
Preparation method:By nicosulfuron, flazasulfuron, trifloxysulfuron, C9, fatty alcohol polyoxyethylene ether, dodecyl
Ichthyodin is stirred evenly, then be put in proportion into unclassified stores in preparing in kettle, after stirring 1 hour, using high-speed shearing machine 6000r/min
Shear 30min.
Embodiment 18:21% nicosulfuron flazasulfuron trifloxysulfuron water dispersible granules (1:10:10)
Preparation method:By above-mentioned formula by active ingredient nicosulfuron, flazasulfuron, trifloxysulfuron and auxiliary agent, fill out
Material mixes, and is uniformly mixed again through air-flow crushing after mechanical crushing, adds water through being granulated, and dry, you can corresponding moisture is made and dissipates
Granula.
Embodiment 19:22% nicosulfuron flazasulfuron trifloxysulfuron suspending agent (20:1:1)
Preparation method:By above-mentioned formula by active ingredient nicosulfuron, flazasulfuron, trifloxysulfuron and auxiliary agent, water
Mixing, is uniformly mixed through high speed shear, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can make
Into corresponding suspension pesticide.
Inventor has found that nicosulfuron also has certain synergistic effect with other sulfonylurea herbicides compounding.Therefore, exist
In the proportional region identical with embodiment, nicosulfuron and the comparative example of other sulfonylurea herbicides compounding are constructed.Pass through
Control effect is compared, illustrates that the nicosulfuron protected of the present invention and flazasulfuron or the trifloxysulfuron compounding of any one are prevented
It controls effect and (since length is limited, most representative sulfonylurea herbicide rimsulfuron, thiophene is only listed in comparative example
Sulphur is grand, halosulfuronmethyl and nicosulfuron compound).
Comparative example 1:21% nicosulfuron rimsulfuron wettable powder (1:20)
Preparation method:Active ingredient nicosulfuron, rimsulfuron and auxiliary agent, filler are mixed by above-mentioned formula, machinery
It is uniformly mixed, you can corresponding Wettable pesticide powder is made through air-flow crushing again after crushing.
Comparative example 2:11% nicosulfuron rimsulfuron microemulsion (1:10)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Comparative example 3:20% nicosulfuron rimsulfuron aqueous emulsion (1:1)
Preparation method:By nicosulfuron, rimsulfuron, C9, fatty alcohol polyoxyethylene ether, dodecyl sodium sulfonate ammonium in preparation
It is stirred evenly in kettle, then is put in proportion into unclassified stores, after stirring 1 hour, be using high-speed shearing machine 6000r/min shearings 30min
It can.
Comparative example 4:11% nicosulfuron rimsulfuron water dispersible granules (10:1)
Preparation method:Active ingredient nicosulfuron, rimsulfuron and auxiliary agent, filler are mixed by above-mentioned formula, machinery
It is uniformly mixed again through air-flow crushing after crushing, adds water through being granulated, and dry, you can corresponding water dispersible granules are made.
Comparative example 5:21% nicosulfuron rimsulfuron suspending agent (20:1)
Preparation method:Active ingredient nicosulfuron, rimsulfuron and auxiliary agent, water are mixed by above-mentioned formula, through at a high speed
Shear-mixed is uniform, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can be made into corresponding suspension
Agent pesticide.
Comparative example 6:21% nicosulfuron thifensulfuronmethyl wettable powder (1:20)
Preparation method:Active ingredient nicosulfuron, thifensulfuronmethyl and auxiliary agent, filler are mixed by above-mentioned formula, machinery
It is uniformly mixed, you can corresponding Wettable pesticide powder is made through air-flow crushing again after crushing.
Comparative example 7:11% nicosulfuron thifensulfuronmethyl microemulsion (1:10)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Comparative example 8:20% nicosulfuron thifensulfuronmethyl aqueous emulsion (1:1)
Preparation method:By nicosulfuron, thifensulfuronmethyl, C9, fatty alcohol polyoxyethylene ether, dodecyl sodium sulfonate ammonium in preparation
It is stirred evenly in kettle, then is put in proportion into unclassified stores, after stirring 1 hour, be using high-speed shearing machine 6000r/min shearings 30min
It can.
Comparative example 9:11% nicosulfuron thifensulfuronmethyl water dispersible granules (10:1)
Preparation method:Active ingredient nicosulfuron, thifensulfuronmethyl and auxiliary agent, filler are mixed by above-mentioned formula, machinery
It is uniformly mixed again through air-flow crushing after crushing, adds water through being granulated, and dry, you can corresponding water dispersible granules are made.
Comparative example 10:21% nicosulfuron thifensulfuronmethyl suspending agent (20:1)
Preparation method:Active ingredient nicosulfuron, thifensulfuronmethyl and auxiliary agent, water are mixed by above-mentioned formula, through at a high speed
Shear-mixed is uniform, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can be made into corresponding suspension
Agent pesticide.
Comparative example 11:21% nicosulfuron halosulfuronmethyl wettable powder (1:20)
Preparation method:Active ingredient nicosulfuron, halosulfuronmethyl and auxiliary agent, filler are mixed by above-mentioned formula, machine
It is uniformly mixed, you can corresponding Wettable pesticide powder is made through air-flow crushing again after tool crushing.
Comparative example 12:11% nicosulfuron halosulfuronmethyl microemulsion (1:10)
It prepares:Active compound, auxiliary agent, water are mixed and are made into homogeneous phase.
Comparative example 13:20% nicosulfuron halosulfuronmethyl aqueous emulsion (1:1)
Preparation method:By nicosulfuron, halosulfuronmethyl, C9, fatty alcohol polyoxyethylene ether, dodecyl sodium sulfonate ammonium with matching
It is stirred evenly in kettle processed, then is put in proportion into unclassified stores, after stirring 1 hour, 30min is sheared using high-speed shearing machine 6000r/min
.
Comparative example 14:11% nicosulfuron halosulfuronmethyl water dispersible granules (10:1)
Preparation method:Active ingredient nicosulfuron, halosulfuronmethyl and auxiliary agent, filler are mixed by above-mentioned formula, machine
It is uniformly mixed again through air-flow crushing after tool crushing, adds water through being granulated, and dry, you can corresponding water dispersible granules are made.
Comparative example 15:21% nicosulfuron halosulfuronmethyl suspending agent (20:1)
Preparation method:Active ingredient nicosulfuron, halosulfuronmethyl and auxiliary agent, water are mixed by above-mentioned formula, through height
Fast shear-mixed is uniform, is sanded 2-3 hours by sand mill, makes its average grain diameter at 5 microns hereinafter, can be made into corresponding outstanding
Floating agent pesticide.
(2) pesticidal preparations field control effectiveness test one prepared by previous embodiment
Reagent agent:5 kinds of ternarys in 14 kinds of re-compounded binary herbicides, embodiment 15~19 in embodiment 1~14 are answered
With 15 kinds of re-compounded binary herbicides in herbicide, comparative example 1~15.
Comparison medicament:80% nicosulfuron wettable powder, 25% flazasulfuron water dispersible granules, 11% trifloxysulfuron
Dispersible oil-suspending agent.
Control object:Lawn dominant weed, water peanut, Horseweed Herb, lady's-grass, eleusine indica, the rhizome of nutgrass flatsedge.
Test method:According to the area of experimental plot, the good each medicament of precise after being watered dilution, is sprayed using backpack
Day with fog carries out even spraying.The dedicated Fan spray head of sprinkler selection weeding, the afternoon for selecting fine day calm spray.Spraying
When liquid is uniformly sprayed application in experimental plot, accomplish not respray, drain spray.
After the test, 5d, 10d, 20d, 30d, 45d observe weeds death condition after medicine respectively, and from each cell
It is random that 1 square meter is taken to carry out weeds mortality survey, calculate preventive effect.
4 field control effectiveness test of table
Result of the test as shown in table 4 shows the present invention by nicosulfuron and flazasulfuron, nicosulfuron and trifluoro pyridine sulphur
After grand, nicosulfuron, flazasulfuron and trifloxysulfuron compounding, 20d preventive effects expand prevention compared with respective single dose after medicine
Grass spectrum, to weeds particularly water peanut, Horseweed Herb, lady's-grass, eleusine indica, the rhizome of nutgrass flatsedge preventive effect be significantly improved, and
The preventive effect of mixture preparation is better than each medicament in comparative example.
(3) pesticidal preparations field control effectiveness test two prepared by previous embodiment
Test condition is the same as field control effectiveness test one.
5 embodiment of table and comparative example field control effectiveness test
After the present invention compounds nicosulfuron and flazasulfuron, nicosulfuron and trifloxysulfuron, 10d, 20d after medicine, than
Compared with its control effect to lady's-grass, eleusine indica.Result of the test as shown in table 5 shows in weight ratio 1-20:In the range of 20-1,
Particularly in weight ratio 1-10:In the range of 10-1, nicosulfuron is compounded with flazasulfuron, nicosulfuron and trifloxysulfuron
Afterwards, control effect be better than nicosulfuron and other sulfonylurea herbicides (such as rimsulfuron, bensulfuron-methyl, Sulfonylurea,
Thifensulfuronmethyl, halosulfuronmethyl etc.) compounding control effect.Since length is limited, most representative sulphonyl is only listed
Carbamide herbicides sulfonylurea herbicide rimsulfuron, thifensulfuronmethyl, halosulfuronmethyl and nicosulfuron compounding carry out preventive effect pair
Than (as shown in table 5).
(4) pesticidal preparations field control effectiveness test three prepared by previous embodiment
Test condition is the same as field control effectiveness test one
6 embodiment field control effectiveness test of table
The result of the test of table 6 shows the present invention using nicosulfuron and flazasulfuron, nicosulfuron and trifloxysulfuron two
Member compounding, nicosulfuron and flazasulfuron and the ternary built of trifloxysulfuron, the compounding agent have apparent association compared with single dose
Same synergistic effect can not only enhance the preventive effect to weeds, and can extend the control careless time.
(5) pesticidal preparations field control effectiveness test four prepared by previous embodiment
Reagent agent:8 kinds of complex weedicides in embodiment 1,5,8,9,14,15,16,18.
For studying object:Korea lawn grass, Bermuda grass, paradise grass, Manila, eremochloa ophiuroides, dewdrop grass.
Dispenser period:Into level ground phase (i.e. 45 days after seedling).
Test method:According to the area of experimental plot, the good each medicament of precise after being watered dilution, is sprayed using backpack
Day with fog carries out even spraying.The dedicated Fan spray head of sprinkler selection weeding, the afternoon for selecting fine day calm spray.Spraying
When liquid is uniformly sprayed application in experimental plot, accomplish not respray, drain spray.The growth feelings on lawn are observed after the medicine in 1~25d
Whether condition, observation lawn have poisoning.
7 field control effectiveness test of table (safety)
After the result of the test of table 7 shows the present invention using nicosulfuron and flazasulfuron or trifloxysulfuron binary built,
It is thrifty to Korea lawn grass, Bermuda grass, paradise grass, Manila, vacation after the ternary built of nicosulfuron, flazasulfuron and trifloxysulfuron
The warm-season turfs such as grass, dewdrop grass are all safe.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of Herbicidal combinations, which is characterized in that active ingredient includes component A and component B, wherein, component A is nicosulfuron
Or its salt, component B are trifloxysulfuron or its salt, the weight ratio of the component A and component B are 1:20-1.
2. Herbicidal combinations according to claim 1, which is characterized in that active ingredient includes nicosulfuron, flazasulfuron
And trifloxysulfuron, weight ratio 1-20:1-20:1-20.
3. Herbicidal combinations according to claim 2, which is characterized in that active ingredient includes nicosulfuron, flazasulfuron
And trifloxysulfuron, weight ratio 1-10:1-10:1-10.
4. Herbicidal combinations according to any one of claims 1 to 3, which is characterized in that also contain in the Herbicidal combinations
Pesticidal preparations auxiliary element, the dosage form for being suitble to agriculturally use is made.
5. the application of any Herbicidal combinations of Claims 1-4, which is characterized in that be used to prepare the agriculture of controlling weeds
Medicine preparation.
6. the application of Herbicidal combinations according to claim 5, which is characterized in that be used to prepare prevention lawn in 7 leaves with
Under above the average age for marriage broad leaved weed, nutgrass flatsedge and the pesticidal preparations of grassy weed.
7. the application of Herbicidal combinations according to claim 6, which is characterized in that the lawn is warm-season turf.
8. the application of Herbicidal combinations according to claim 7, which is characterized in that the warm-season turf is to knot thread
Grass, Bermuda grass, paradise grass, Manila, eremochloa ophiuroides or Dichondra Repens Turf.
9. any Herbicidal combinations of Claims 1-4 are applied to the method for controlling weeds, which is characterized in that effective group
Divide and applied with above-mentioned weight ratio, apply after mixing according to the above ratio, be administered simultaneously in proportion or apply successively in proportion.
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CN101252836A (en) * | 2005-09-01 | 2008-08-27 | 杜邦公司 | Liquid sulfonylurea herbicide formulations |
CN103327814A (en) * | 2010-11-26 | 2013-09-25 | 石原产业株式会社 | Herbicidal composition comprising flazasulfuron and nicosulfuron |
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