CN105935056A - Weeding composition and application thereof - Google Patents
Weeding composition and application thereof Download PDFInfo
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- CN105935056A CN105935056A CN201610112847.8A CN201610112847A CN105935056A CN 105935056 A CN105935056 A CN 105935056A CN 201610112847 A CN201610112847 A CN 201610112847A CN 105935056 A CN105935056 A CN 105935056A
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- China
- Prior art keywords
- nicosulfuron
- component
- herbicidal combinations
- flazasulfuron
- trifloxysulfuron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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 weeding composition and an application thereof, and relates to the pesticide compounding technical field. Effective ingredients of the weeding composition comprise a component A and a component B; the compound A is nicosulfuron or a salt thereof; the compound B is arbitrary one or more of flazasulfuron or salts thereof, and trifloxysulfuron or salts thereof; the weight ratio of the component A to the component B is (1-20):(20-1). The weeding composition has four advantages: 1, the composition can effectively reduce the application amount of single agents, is fast in quick-acting property and long in lasting period, and delays the drug resistance of plants; 2, the composition can efficiently prevent and remove older broadleaf weeds, sedge and gramineous weeds with 7 leaves or less, and has synergistic interaction effect; 3, the composition can expand the weeding spectra; and 4, the composition is highly safe to lawns.
Description
Technical field
The invention belongs to technical field of pesticide combination, relate to Herbicidal combinations and application thereof.
Background technology
Along with rapid development of economy, people are more and more higher to the requirement of urban afforestation, domestic lawn surface
Amassing and the most constantly increase, in lawn, preventing and kill off of weeds becomes the difficult problem that turf management personnel are maximum.Now
Mostly being the weeds in lawn and manually pull out, put into big, efficiency is low, weak effect.Spray safely and effectively
Herbicide be control turf weed effective measures.
Nicosulfuron, English name is nicosulfuron, molecular formula: C15H18N6O6S, chemical name
Claim: 2-(4,6-dimethoxypyridin-2-base carbamoylamino sulphonyl)-N, N-dimethyl nicotinoyl
Amine, its structure is as shown in formula I.Nicosulfuron is high efficiency corn herbicide, uses after low dosage bud
Can effectively prevent and kill off multiple annual gramineous weed, broad leaved weed and sedge weed in corn field.
It is absorbed rapidly by leaf and root, and is conducted rapidly by xylem and phloem.Closed by acetolactic acid
Enzyme is become to stop the synthesis of branched-chain amino acid.Using rear weeds to stop growing immediately, within 4-5 days, young leaves takes off
Color, necrosis, and progressively expand to whole plant, after processing under generic condition, 20-25 days plant are dead.
Nicosulfuron is mainly used in cornfield weeding, preferable to grassy weed and part broadleaved herb preventive effect, right
Dried tuber preventive effect is medium, bad to part broadleaved herb preventive effect.Not yet have and nicosulfuron is used for Kill weeds
Patent, document report.
Flazasulfuron, English name is flazasulfuron, and chemical name is 1-(4,6-dimethoxys
Pyrimidine-2-base)-3-(3-trifluoromethyl-2-pyridine sulfonyl sulfonyl) urea, molecular weight is 407.32, chemical formula
For C13H12F3N5O5S, its structure is as shown in formula II.Medicament can rapidly by the stem and leaf of weeds and
Root Absorption, and conduct to whole strain weeds, mainly suppress the activity of acetolactate synthestase (ALS),
And then the synthesis of the branched-chain amino acid (leucine, isoleucine) in suppression weeds body, hinder albumen
The synthesis of matter and other metabolic process, cause weeds dead.To broadleaved herb, dried tuber and grassy weed
Barnyard grass, Herba Setariae Viridis effect preferable, but poor to Herba Eleusines Indicae, Herba Digitariae effect.
Trifloxysulfuron, English name is Trifloxysulfuron, and chemical name is 1-(4,6-dimethoxies
Yl pyrimidines-2-base)-3-[3-(2,2,2-trifluoro ethoxy)-2-pyridine sulfonyl sulfonyl] urea, chemical formula is
C14H14F3N5O6S, molecular weight is 437.3511, and its structure is as shown in formula III.Trifloxysulfuron
Belonging to sulfonylurea herbicide, its mechanism of action is acetolactate synthestase (ALS) in suppression weeds
Biological activity, the stem and leaf of weeds and root all can absorb trifloxysulfuron, and through xylem and
Phloem fast transfer is to interior branch, root and apical meristem, thus kills weeds, and weeds show
Stop for growth, wilting turns yellow, apical meristem is dead, and weeds are dead in 1-3 week subsequently.
It is mainly used in preventing and kill off broad leaved weed and sedge weed, especially malignant weed Rhizoma Cyperi is had specially good effect.Horse
The grassy weed preventive effects such as Tang, barnyard grass, Herba Eleusines Indicae, Herba Setariae Viridis are poor.
Defect in various degree is there is in the herbicide kind containing single-activity component on control of weeds,
As after continuous administration, weeds easily develop immunity to drugs, weed control spectrum narrows, and causes the problems such as environmental pollution.
Herbicide is rationally compounding is to improve preventive effect, expands weed control spectrum or widens the use time, delaying
The speed of shift of weed community, reduces the resistance risk that the single use of pesticide brings, alleviates environment
Pollute, reduce use cost and reduce a kind of effective ways of herbicide residue.
Summary of the invention
The technical problem to be solved in the present invention is to provide one, and herbicidal effect is good, drug cost is low, herbicide
The spectrum significant Herbicidal combinations of prevention effect extensively, to turf weed.
For solving above-mentioned technical problem, the present invention provides technical scheme as follows:
Herbicidal combinations of the present invention, effective ingredient comprises component A and component B, wherein, group
Dividing A is nicosulfuron or its salt, and component B is flazasulfuron or its salt, trifloxysulfuron or its salt
In any one or more, the weight ratio of described component A and component B is 1-20:20-1；Enter
One step weight ratio is 1-10:10-1.
Herbicidal combinations effective ingredient of the present invention can comprise nicosulfuron, flazasulfuron and trifluoro
Pyridine sulphur is grand, and its weight ratio is 1-20:1-20:1-20；1-10:1-10:1-10 further.
In Herbicidal combinations of the present invention except group of effective components exceptionally, also include in pesticide receptible
Auxiliary element.Receptible auxiliary element in pesticide, including not with nicosulfuron, flazasulfuron, three
During fluorine pyridine sulphur is grand, any one generation chemical action or the drug effect performance to the present invention adversely affect
Component, as dispersant conventional use of in pesticide, diffusant, defoamer, wetting agent, disintegrating agent,
The auxiliary agents such as excipient.
According to different use needs or applying environment condition, Herbicidal combinations of the present invention is pesticide
In arbitrary dosage form, as can make corresponding wettable powder, suspending agent, suspended emulsion, microemulsion,
Water dispersible granules, oil-suspending agent etc..
Herbicidal combinations of the present invention can provide with finished product preparation form, i.e. each in Herbicidal combinations
Material is the most blended, or the composition of Herbicidal combinations can also provide with unit dose form, straight before using
It is connected in bucket or tank and directly mixes, be then diluted to required concentration.
Herbicidal combinations of the present invention is applied to the method for controlling weeds, its weight ratio described above model
Enclosing and use each active component nicosulfuron, flazasulfuron, trifloxysulfuron, it mixes according to the above ratio
After use, use the most simultaneously or use the most successively.Herbicidal combinations of the present invention, can
Before weeds emerge, carry out soil treatment, or weeds emerge after carry out stem and leaf process.
Herbicidal combinations of the present invention, can be used for preparing the pesticidal preparations of controlling weeds.Particularly suitable
In preparation preventing and treating turf weed pesticidal preparations, especially prevent and treat below 7 leaves above the average age for marriage broad leaved weed,
Dried tuber and/or the pesticidal preparations of grass tree weeds.
Lawn of the present invention is preferably warm-season turf.Described warm-season turf can be knot thread
Grass, Bermuda grass, paradise grass, Manila, eremochloa ophiuroides, Dichondra Repens Turf etc..
Herbicidal combinations of the present invention can be used for preventing and kill off broad leaved weed, dried tuber, grass tree weeds in lawn,
Its effect is substantially better than nicosulfuron, flazasulfuron, trifloxysulfuron single dose, has preferably application
Prospect and promotional value.
The present invention passes through the compounding of two kinds of active components of different mechanism of action, different model of action, tool
There is synergistic function, it is possible to reduce pesticide dosage, reduce use cost.
It is an advantage of the invention that it will be evident that be mainly manifested in:
Herbicidal combinations the most of the present invention, without any antagonism, potentiation between each composition
Significantly.
2. Herbicidal combinations compares with being used alone single active ingredient, expands weed control spectrum, and weeding is imitated
Fruit is more preferably.
3. Herbicidal combinations can prevent and kill off the above the average age for marriage broad leaved weed of below 7 leaves, dried tuber or grass tree weeds,
The weeding quick-acting phase can be shortened, extend the lasting period, a dispenser, Ji Wucao can be saved from damage.
4. low toxicity, to people, bird, poultry and beneficial organism safety, beneficially environmental conservation and holding ecology
Balance.
The most easy and simple to handle, compound synergic can reduce the usage amount of each single dose, low cost, easily promotes.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, will use below
Specific embodiment is described in detail, but the present invention is limited to absolutely not these examples.The following stated is only this
Invent preferable embodiment, only in order to explain the present invention, can not therefore be interpreted as the present invention
The restriction of the scope of the claims.It should be pointed out that, all done within the spirit and principles in the present invention appoint
What amendment, equivalent and improvement etc., should be included within the scope of the present invention.Therefore,
The protection domain of patent of the present invention should be as the criterion with claims.
Make pesticide by compounding for difference agriculture the effective elements of the medicine, be exploitation at present and develop novel pesticide and
Prevent and treat a kind of effective and quick way of agriculturally resistance.After the pestsides synthesis of different cultivars, generally
Show a large amount of three kinds of type of action: summation action, potentiation and antagonism.Compound synergic is very
Good formula, it is possible to significantly improve actual prevention effect, expands weed control spectrum, reduces the usage amount of pesticide,
Thus contribute to delaying drug-fast generation speed, it is the important means of integrated control.
The present composition is with nicosulfuron for a kind of effective ingredient (A), flazasulfuron, trifluoro pyridine sulphur
In grand, any one is another effective ingredient (B), forms binary built, combines miscellaneous between them
Grass preventing and treating has obvious synergistic function, and is not only the simple superposition of two kinds of pharmacy effects,
This can be clearly understood that from following test result.
(1) Toxicity Determination test
Assay method: indoor pot method, Rhizoma Cyperi, Herba Digitariae, water peanut SANYE wholeheartedly time spray tower
Carry out stem and leaf process.After medicine, 15d measures fresh weight inhibition, calculates ED50 value, co-toxicity coefficient.Ratio
Relatively nicosulfuron, flazasulfuron, trifloxysulfuron and they compounding after activity of weeding, determine
Good ratio range.
Evaluating two yuan of herbicide mode of applications by Sun Pei cloud 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 theory toxicity index；
A A medicament toxicity index；
B B medicament toxicity index；
PA A medicament percentage composition in mixture；
PB B medicament percentage composition in mixture；
In formula:
CTC co-toxicity coefficient；
ATI mixture actual measurement toxicity index；
TTI mixture theory toxicity index.
Criterion: CTC ＞ 120 is potentiation；CTC ＜ 80 is antagonism；80 ＜ CTC
＜ 120 is summation action.
Table 1 Toxicity Determination test (one)
Toxicity Determination result table 1 shows, in the range of A:B weight ratio 1-20:20-1,
After nicosulfuron is compounding with flazasulfuron, there is obvious synergistic function；A:B weight ratio is
In the range of 1-20:20-1, co-toxicity coefficient is more than 120, and particularly A:B weight ratio is 1-10:10-1
In the range of, co-toxicity coefficient is more notable more than 240.0 synergistic effects.The drug effect of the present invention is significantly better than each
From single dose routine tests effect, and weed control spectrum can be expanded.
Table 2 Toxicity Determination test (two)
Toxicity Determination result table 2 shows, in the range of A:B weight ratio 1-20:20-1,
After nicosulfuron is compounding with trifloxysulfuron, there is obvious synergistic function；A:B weight ratio is
In the range of 1-20:20-1, co-toxicity coefficient is more than 120, and particularly A:B weight ratio is 1-10:10-1
In the range of, co-toxicity coefficient is more notable more than 203.0 synergistic effects.The drug effect of the present invention is significantly better than each
From single dose routine tests effect, and weed control spectrum can be expanded.
The present composition is with nicosulfuron (A) for a kind of effective ingredient, and flazasulfuron (B) is
Another effective ingredient, trifloxysulfuron are the 3rd effective ingredient (C), carry out ternary built, and ternary is multiple
Combo compound has obvious synergistic function to control of weeds, and is not only three kinds of pharmacy effects
Simple superposition, this can be clearly understood that from following test result.
Table 3 Toxicity Determination test (three)
Toxicity Determination result table 3 shows, in the range of A:B:C weight ratio 1-20:1-20:1-20,
After nicosulfuron, flazasulfuron and trifloxysulfuron ternary built, there is obvious synergistic function；
In the range of A:B:C weight ratio is 1-20:1-20:1-20, co-toxicity coefficient is more than 120, particularly A:B:C
In the range of weight ratio is 1-10:1-10:1-10, co-toxicity coefficient is more notable more than 215.6 synergistic effects.
The drug effect of the present invention is significantly better than respective single dose routine tests effect, and can expand weed control spectrum.
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, will use below
Specific embodiment is described in detail, but the present invention is limited to absolutely not these examples.The following stated is only this
Invent preferable embodiment, only in order to explain the present invention, can not therefore be interpreted as the present invention
The restriction of the scope of the claims.It should be pointed out that, all done within the spirit and principles in the present invention appoint
What amendment, equivalent and improvement etc., should be included within the scope of the present invention.Therefore,
The protection domain of patent of the present invention should be as the criterion with claims.
All features disclosed in this specification, or disclosed all methods or during step, remove
Beyond mutually exclusive feature and/or step, all can combine by any way.Public affairs in this specification
Any feature opened, unless specifically stated otherwise, all can be by other equivalences or the replacement spy with similar purpose
Levy and replaced.I.e., unless specifically stated otherwise, during each feature is a series of equivalence or similar characteristics
An example.
The Herbicidal combinations of the present invention can be prepared as being suitable for any of agricultural use by known method
A kind of dosage form, reasonable dosage form is wettable powder, aqueous emulsion, microemulsion, suspending agent, moisture
Shot agent.In all formula, percentage ratio is all weight percentage.Adding of the various dosage form of the present composition
Work technique is prior art, can be varied from according to different situations.
Embodiment 1:21% nicosulfuron flazasulfuron wettable powder (1:20)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, flazasulfuron and auxiliary agent, fill out
Material mixing, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, i.e. can be made into corresponding wettable powder
Agent pesticide.
Embodiment 2:14% nicosulfuron flazasulfuron microemulsion (1:13)
Preparation: former medicine, auxiliary agent, water mixing are made into homogeneous phase.
Embodiment 3:11% nicosulfuron flazasulfuron microemulsion (1:10)
Preparation: former medicine, auxiliary agent, water mixing are made into homogeneous phase.
Embodiment 4:20% nicosulfuron flazasulfuron aqueous emulsion (1:1)
Preparation method: by nicosulfuron, flazasulfuron, C9, fatty alcohol-polyoxyethylene ether, dodecane
Base ichthyodin stirs evenly in preparation still, then puts into unclassified stores in proportion, after stirring 1 hour, uses
High-speed shearing machine 6000r/min shears 30min.
Embodiment 5:11% nicosulfuron flazasulfuron water dispersible granules (10:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, flazasulfuron and auxiliary agent, fill out
Material mixing, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, adds water through pelletize, and dries, i.e.
Can be made into corresponding water dispersible granules.
Embodiment 6:14% nicosulfuron flazasulfuron suspended emulsion (13:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, flazasulfuron and auxiliary agent, water
Mixing, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so that it is mean diameter exists
Less than 5 microns, i.e. can be made into corresponding suspension pesticide.
Embodiment 7:21% nicosulfuron flazasulfuron suspending agent (20:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, flazasulfuron and auxiliary agent, water
Mixing, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so that it is mean diameter exists
Less than 5 microns, i.e. can be made into corresponding suspension pesticide.
Embodiment 8:21% nicosulfuron trifloxysulfuron wettable powder (1:20)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, trifloxysulfuron and auxiliary agent,
Filler mixes, and again through comminution by gas stream, mix homogeneously after mechanical activation comminution, i.e. can be made into corresponding wettability
Powder pesticide.
Embodiment 9:11% nicosulfuron trifloxysulfuron microemulsion (1:10)
Preparation: former medicine, auxiliary agent, water mixing are made into homogeneous phase.
Embodiment 10:18% nicosulfuron trifloxysulfuron microemulsion (5:13)
Preparation: former medicine, auxiliary agent, water mixing are made into homogeneous phase.
Embodiment 11:20% nicosulfuron trifloxysulfuron aqueous emulsion (1:1)
Preparation method: by nicosulfuron, trifloxysulfuron, C9, fatty alcohol-polyoxyethylene ether, 12
Alkyl sulfonic acid ammonium stirs evenly in preparation still, then puts into unclassified stores in proportion, after stirring 1 hour, adopts
30min is sheared with high-speed shearing machine 6000r/min.
Embodiment 12:18% nicosulfuron trifloxysulfuron suspended emulsion (13:5)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, trifloxysulfuron and auxiliary agent,
Water mixes, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so that it is mean diameter
Below 5 microns, i.e. can be made into corresponding suspension pesticide.
Embodiment 13:11% nicosulfuron trifloxysulfuron water dispersible granules (10:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, trifloxysulfuron and auxiliary agent,
Filler mixes, and again through comminution by gas stream, mix homogeneously after mechanical activation comminution, adds water through pelletize, and dries,
I.e. can be made into corresponding water dispersible granules.
Embodiment 14:21% nicosulfuron trifloxysulfuron suspending agent (20:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, trifloxysulfuron and auxiliary agent,
Water mixes, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so that it is mean diameter
Below 5 microns, i.e. can be made into corresponding suspension pesticide.
Embodiment 15:22% nicosulfuron flazasulfuron trifloxysulfuron wettable powder (1:1:20)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, flazasulfuron, trifloxysulfuron
And the mixing of auxiliary agent, filler, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, i.e. can be made into phase
The Wettable pesticide powder answered.
Embodiment 16:21% nicosulfuron flazasulfuron trifloxysulfuron microemulsion (10:10:1)
Preparation: former medicine, auxiliary agent, water mixing 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 polyoxy second
Alkene ether, dodecyl sodium sulfonate ammonium stir evenly in preparation still, then put into unclassified stores in proportion, stir 1
After hour, high-speed shearing machine 6000r/min is used to shear 30min.
Embodiment 18:21% nicosulfuron flazasulfuron trifloxysulfuron water dispersible granules (1:10:10)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, flazasulfuron, trifloxysulfuron
And the mixing of auxiliary agent, filler, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, add water through pelletize,
And dry, i.e. can be made into corresponding water dispersible granules.
Embodiment 19:22% nicosulfuron flazasulfuron trifloxysulfuron suspending agent (20:1:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, flazasulfuron, trifloxysulfuron
And the mixing of auxiliary agent, water, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour, make
Its mean diameter, below 5 microns, i.e. can be made into corresponding suspension pesticide.
Inventor finds that nicosulfuron and other sulfonylurea herbicides are compounding also has certain potentiation to imitate
Really.Therefore, in the proportion identical with embodiment, construct nicosulfuron and other sulfonylureas
The comparative example of class mixture of herbicides.By contrast prevention effect, the phonetic sulphur of cigarette that the present invention is protected is described
Grand with flazasulfuron or any one compounding prevention effect of trifloxysulfuron is (owing to length is limited, only
The most representational sulfonylurea herbicide rimsulfuron, thifensulfuronmethyl, chlorine is listed in comparative example
Pyrazosulfuron compounds with nicosulfuron).
Comparative example 1:21% nicosulfuron rimsulfuron wettable powder (1:20)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, rimsulfuron and auxiliary agent, fill out
Material mixing, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, i.e. can be made into corresponding wettable powder
Agent pesticide.
Comparative example 2:11% nicosulfuron rimsulfuron microemulsion (1:10)
Preparation: former medicine, auxiliary agent, water mixing 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, dodecane
Base ichthyodin stirs evenly in preparation still, then puts into unclassified stores in proportion, after stirring 1 hour, uses
High-speed shearing machine 6000r/min shears 30min.
Comparative example 4:11% nicosulfuron rimsulfuron water dispersible granules (10:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, rimsulfuron and auxiliary agent, fill out
Material mixing, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, adds water through pelletize, and dries, i.e.
Can be made into corresponding water dispersible granules.
Comparative example 5:21% nicosulfuron rimsulfuron suspending agent (20:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, rimsulfuron and auxiliary agent, water
Mixing, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so that it is mean diameter exists
Less than 5 microns, i.e. can be made into corresponding suspension pesticide.
Comparative example 6:21% nicosulfuron thifensulfuronmethyl wettable powder (1:20)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, thifensulfuronmethyl and auxiliary agent, fill out
Material mixing, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, i.e. can be made into corresponding wettable powder
Agent pesticide.
Comparative example 7:11% nicosulfuron thifensulfuronmethyl microemulsion (1:10)
Preparation: former medicine, auxiliary agent, water mixing 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, dodecane
Base ichthyodin stirs evenly in preparation still, then puts into unclassified stores in proportion, after stirring 1 hour, uses
High-speed shearing machine 6000r/min shears 30min.
Comparative example 9:11% nicosulfuron thifensulfuronmethyl water dispersible granules (10:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, thifensulfuronmethyl and auxiliary agent, fill out
Material mixing, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, adds water through pelletize, and dries, i.e.
Can be made into corresponding water dispersible granules.
Comparative example 10:21% nicosulfuron thifensulfuronmethyl suspending agent (20:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, thifensulfuronmethyl and auxiliary agent, water
Mixing, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so that it is mean diameter exists
Less than 5 microns, i.e. can be made into corresponding suspension pesticide.
Comparative example 11:21% nicosulfuron halosulfuronmethyl wettable powder (1:20)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, halosulfuronmethyl and auxiliary agent,
Filler mixes, and again through comminution by gas stream, mix homogeneously after mechanical activation comminution, i.e. can be made into corresponding wettability
Powder pesticide.
Comparative example 12:11% nicosulfuron halosulfuronmethyl microemulsion (1:10)
Preparation: former medicine, auxiliary agent, water mixing 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, 12
Alkyl sulfonic acid ammonium stirs evenly in preparation still, then puts into unclassified stores in proportion, after stirring 1 hour, adopts
30min is sheared with high-speed shearing machine 6000r/min.
Comparative example 14:11% nicosulfuron halosulfuronmethyl water dispersible granules (10:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, halosulfuronmethyl and auxiliary agent,
Filler mixes, and again through comminution by gas stream, mix homogeneously after mechanical activation comminution, adds water through pelletize, and dries,
I.e. can be made into corresponding water dispersible granules.
Comparative example 15:21% nicosulfuron halosulfuronmethyl suspending agent (20:1)
Preparation method: by above-mentioned formula by effective ingredient nicosulfuron, halosulfuronmethyl and auxiliary agent,
Water mixes, through high speed shear mix homogeneously, by sand mill sand milling 2-3 hour so that it is mean diameter
Below 5 microns, i.e. can be made into corresponding suspension pesticide.
(2) the pesticidal preparations field control effectiveness test one that prepared by previous embodiment
Reagent agent: in 14 kinds of re-compounded binary herbicides in embodiment 1～14, embodiment 15～19
5 kinds of ternary built herbicides, 15 kinds of re-compounded binary herbicides in comparative example 1～15.
Comparison medicament: 80% nicosulfuron wettable powder, 25% flazasulfuron water dispersible granules, 11%
Trifloxysulfuron dispersibles oil-suspending agent.
Prevent and kill off object: lawn advantage weeds, water peanut, Conyza canadensis (L.) Cronq., Herba Digitariae, Herba Eleusines Indicae, Rhizoma Cyperi.
Test method: according to the area of experimental plot, the good each medicament of precise, after being watered dilution,
Utilize knapsack sprayer, carry out even spraying.The Fan spray head that sprinkler selection weeding is special, selects
Fine day is sprayed in calm afternoon.During spraying, medicinal liquid is uniformly sprayed application in experimental plot, accomplish not
Respray, drain spray.
After off-test, after medicine, 5d, 10d, 20d, 30d, 45d observe weeds death feelings respectively
Condition, and take 1 square meter at random from each community and carry out weeds mortality survey, calculate preventive effect.
Table 4 field control effectiveness test
Result of the test shows as shown in table 4, and the present invention is by nicosulfuron and flazasulfuron, nicosulfuron
After compounding with trifloxysulfuron with trifloxysulfuron, nicosulfuron, flazasulfuron, 20d preventive effect after medicine
Compared with respective single dose, expand preventing and treating grass spectrum, to weeds particularly water peanut, Conyza canadensis (L.) Cronq., horse
Tang, Herba Eleusines Indicae, the preventive effect of Rhizoma Cyperi are all significantly improved, and the preventive effect of mixture preparation is the best
Each medicament in comparative example.
(3) the pesticidal preparations field control effectiveness test two that prepared by previous embodiment
Test condition is with field control effectiveness test one.
Table 5 embodiment and comparative example field control effectiveness test
After nicosulfuron is compounded with trifloxysulfuron by the present invention with flazasulfuron, nicosulfuron, after medicine
10d, 20d, compare it to Herba Digitariae, the prevention effect of Herba Eleusines Indicae.Result of the test shows as shown in table 5,
In the range of weight ratio 1-20:20-1, particularly in the range of weight ratio 1-10:10-1,
After nicosulfuron compounds with trifloxysulfuron with flazasulfuron, nicosulfuron, it is phonetic that prevention effect is better than cigarette
The grand sulfonylurea herbicide with other of sulphur is (such as rimsulfuron, bensulfuron-methyl, Sulfonylurea, thiophene
Fen sulphur is grand, halosulfuronmethyl etc.) compounding prevention effect.Owing to length is limited, only list most
Representational sulfonylurea herbicide sulfonylurea herbicide rimsulfuron, thifensulfuronmethyl, chlorine pyrrole are phonetic
Grand the compounding with nicosulfuron of sulphur carries out preventive effect contrast (as shown in table 5).
(4) the pesticidal preparations field control effectiveness test three that prepared by previous embodiment
Test condition is with field control effectiveness test one
Table 6 embodiment field control effectiveness test
The result of the test of table 6 shows, the present invention use nicosulfuron and flazasulfuron, nicosulfuron with
Trifloxysulfuron binary built, nicosulfuron and flazasulfuron and the ternary built of trifloxysulfuron, institute
State built agent relatively single dose and there is obvious synergistic function, not only can strengthen and weeds are prevented and kill off effect
Really, and can extend control grass the time.
(5) the pesticidal preparations field control effectiveness test four that prepared by previous embodiment
Reagent agent: 8 kinds of compounding weedings in embodiment 1,5,8,9,14,15,16,18
Agent.
For studying thing: Korea lawn grass, Bermuda grass, paradise grass, Manila, eremochloa ophiuroides, Herba Dichodrae.
Dispenser period: become the level ground phase (i.e. after Seedling 45 days).
Test method: according to the area of experimental plot, the good each medicament of precise, after being watered dilution,
Utilize knapsack sprayer, carry out even spraying.The Fan spray head that sprinkler selection weeding is special, selects
Fine day is sprayed in calm afternoon.During spraying, medicinal liquid is uniformly sprayed application in experimental plot, accomplish not
Respray, drain spray.After medicine, observe the growing state on lawn in 1～25d, observe whether lawn has poisoning.
Table 7 field control effectiveness test (safety)
The result of the test of table 7 shows, the present invention uses nicosulfuron and flazasulfuron or trifloxysulfuron
After binary built, after the ternary built of nicosulfuron, flazasulfuron and trifloxysulfuron, to Korea lawn grass,
The whole safety of warm-season turf such as Bermuda grass, paradise grass, Manila, eremochloa ophiuroides, Herba Dichodrae.
The above is the preferred embodiment of the present invention, it is noted that general for the art
For logical technical staff, on the premise of without departing from principle of the present invention, it is also possible to make some changing
Entering and retouch, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a Herbicidal combinations, it is characterised in that effective ingredient comprises component A and component B,
Wherein, component A is nicosulfuron or its salt, and component B is flazasulfuron or its salt, or trifluoro pyridine
Sulphur is grand or any one or more in its salt, and the weight ratio of described component A and component B is
1-20:20-1。
Herbicidal combinations the most according to claim 1, it is characterised in that described component A with
The weight ratio of component B is 1-10:10-1.
Herbicidal combinations the most according to claim 1, it is characterised in that effective ingredient comprises
Nicosulfuron, flazasulfuron and trifloxysulfuron, its weight ratio is 1-20:1-20:1-20.
Herbicidal combinations the most according to claim 3, it is characterised in that effective ingredient comprises
Nicosulfuron, flazasulfuron and trifloxysulfuron, its weight ratio is 1-10:1-10:1-10.
5. according to the arbitrary described Herbicidal combinations of Claims 1-4, it is characterised in that described
Possibly together with pesticidal preparations auxiliary element in Herbicidal combinations, to make the dosage form being suitable for agriculturally using.
6. the application of the arbitrary described Herbicidal combinations of claim 1 to 5, it is characterised in that use
Pesticidal preparations in preparation controlling weeds.
The application of Herbicidal combinations the most according to claim 6, it is characterised in that be used for making
Pesticidal preparations for above the average age for marriage broad leaved weed, dried tuber and grassy weed below 7 leaves in preventing and treating lawn.
The application of Herbicidal combinations the most according to claim 7, it is characterised in that described grass
Level ground is warm-season turf.
The application of Herbicidal combinations the most according to claim 8, it is characterised in that described warm
Season type lawn is to Korea lawn grass, Bermuda grass, paradise grass, Manila, eremochloa ophiuroides or Dichondra Repens Turf.
10. the method that the arbitrary described Herbicidal combinations of claim 1 to 5 is applied to controlling weeds,
It is characterized in that, active component is used with above-mentioned weight ratio, it uses after mixing according to the above ratio,
Use the most simultaneously or use the most successively.
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| CN109805025A (en) * | 2019-03-05 | 2019-05-28 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and warm season grassplot herbicides special |
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| CN1829440A (en) * | 2003-07-25 | 2006-09-06 | 石原产业株式会社 | Herbicidal composition having the herbicidal effect enhanced, and method for enhancing the herbicidal effect |
| 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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| JP2004026758A (en) * | 2002-06-27 | 2004-01-29 | Sds Biotech:Kk | Herbicidal composition containing substituted pyrazol derivative |
| CN1829440A (en) * | 2003-07-25 | 2006-09-06 | 石原产业株式会社 | Herbicidal composition having the herbicidal effect enhanced, and method for enhancing the herbicidal effect |
| 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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| CN109805025A (en) * | 2019-03-05 | 2019-05-28 | 许昌市建安区昌盛日化实业有限公司 | A kind of Herbicidal combinations and warm season grassplot herbicides special |
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