CN109757483A - Herbicidal combinations, herbicidal formulations and preparation method thereof - Google Patents
Herbicidal combinations, herbicidal formulations and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of Herbicidal combinations comprising: 2,4-D salt, metsulfuron-methyl and dicamba salt；2, the 4-D salt is 2,4-D alkali metal salt or 2, and 4-D amine salt, the dicamba salt is dicamba alkali metal salt or dicamba amine salt.Present invention also provides application of the Herbicidal combinations in management of weeds.Present invention also provides a kind of herbicidal formulations, are made of above-mentioned Herbicidal combinations with auxiliary material.Present invention also provides a kind of preparation method of herbicidal formulations, herbicidal formulations good drug efficacy provided by the present application and stability is good.
Description
Technical field
The present invention relates to technical field of pesticide more particularly to a kind of Herbicidal combinations, herbicidal formulations and preparation method thereof.
Background technique
2,4-D, dicamba, metsulfuron-methyl are pasture Common Herbicides.Wherein, 2,4-D is systemic herbicide, can be from
Root, stem, leaf enter in plant, and degradation slowly, therefore can accumulate a certain concentration, so that plant hormone in vivo be interfered to balance, destroy
Nucleic acid and protein metabolism promote or inhibit certain organ growths, make the distortion of weeds cauline leaf, stem foot it is thicker, it is swollen split, thus real
The removal of existing weeds.
Dicamba (Dicamba, 3,6- bis- chloro- O-Anisic Acids, C8H6Cl2O3) belong to benzoic acid system herbicide, tool
There is uptake and translocation effect, has significant preventive effect to annual and perennial broadleaf weed.Dicamba is used for spraying, medicament after seedling
It can be absorbed quickly by the leaf of weeds, stem, root, be conducted, focused mostly on prosperous in separate living tissue and metabolic activity up and down by bast
The position of Sheng, hinders the normal activity of plant hormone, to make its death；And gramineae plant absorb medicament after can it is cracking into
Row metabolic breakdown is allowed to fail, therefore shows stronger drug resistance.
Metsulfuron-methyl (Metsulfuron, C14H15N5O6S), inner sucting conduction type cornfield herbicidal；It is inhaled by weeds root and blade
After receipts, conducted in plant body quickly, can Xiang Ding and to base portion conduct, inhibit plant roots and young sprout top rapidly within a few hours
Growth, plant is withered within 3~14 days.
But with a large amount of long-time services of above-mentioned various single doses, part weeds generate obvious resistance, this is just needed by multiple
Match to solve the problems, such as that control efficiency is poor.Secondly, possible poor compatibility when multivariate product bucket is mixed at present, easily flocculates after bucket is mixed
The problems such as, it easily blocks spray head and the problem of phytotoxicity, drug effect difference occurs.
Summary of the invention
Present invention solves the technical problem that being to provide the preparation method of a kind of Herbicidal combinations and herbicidal formulations, the application
The Herbicidal combinations drug effect of offer is preferable, and further, herbicidal formulations stability is preferable.
In view of this, this application provides a kind of Herbicidal combinations, comprising: 2,4-D salt, metsulfuron-methyl and dicamba salt；Institute
Stating 2,4-D salt is 2,4-D alkali metal salt or 2, and 4-D amine salt, the dicamba salt is dicamba alkali metal salt or dicamba amine salt.
Preferably, the mass ratio of 2, the 4-D salt, metsulfuron-methyl and dicamba salt is (30~50): 1:(10~20)；It is described
2,4-D salt is with the dicamba salt in terms of acid.
Preferably, the mass ratio of 2, the 4-D salt, metsulfuron-methyl and dicamba salt is (35~45): 1:(12~16)；It is described
2,4-D salt is with the dicamba salt in terms of acid.
Present invention also provides application of the Herbicidal combinations in management of weeds.
Present invention also provides a kind of herbicidal formulations, including acceptable auxiliary material in the Herbicidal combinations and pesticide.
Preferably, the auxiliary material includes surfactant and inorganic filler.
Preferably, the surfactant is selected from ox ester amine polyoxyethylene ether, alkyl glycosides, polyoxyethylene nonylphenol, rouge
Fat amine polyoxyethylene ether, ethylene oxide-propylene oxide block copolymer, alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene
Fatty acid, methyl oxirane, fatty alcohol polyoxyethylene ether alkyl naphthalene sulfonic acid formaldehyde condensation products, polycarboxylic acid salt, naphthalene sulfonate
With two or more in lauryl sulfate, the inorganic filler be selected from sodium sulphate, sodium chloride, sodium tripolyphosphate, urea,
One of sodium alginate, ammonium sulfate, sodium nitrate, potassium sulfate and sodium carboxymethylcellulose are a variety of.
Preferably, the Herbicidal combinations are 1~75wt% of the herbicidal formulations.
Preferably, the dosage form of the herbicidal formulations is water-soluble granule or water dispersible granules.
Present invention also provides a kind of preparation methods of herbicidal formulations, comprising the following steps:
Dicamba, 2,4-D, alkali compounds are mixed with auxiliary material, reacts, obtains initial reactant；The alkalinity chemical combination
Object is the alkali compounds and organic amine compound of alkali metal；
The initial reactant is mixed with metsulfuron-methyl, then successively obtains herbicidal formulations by being granulated, drying and sieve.
Preferably, using the herbicidal formulations as base, the content of the dicamba is greater than 0 and is less than or equal to 20wt%, described
2,4-D content is greater than 0 and is less than or equal to 60wt%, and the content of the alkali compounds is greater than 0 and is less than or equal to 20wt%, institute
The content for stating metsulfuron-methyl is greater than 0 and is less than or equal to 2wt%, and 2, the 4-D, dicamba are in terms of acid.
Preferably, the temperature of the reaction is 45~55 DEG C, and the time of the reaction is 40~60min, the granulation
Temperature is not higher than 50 DEG C, and the temperature of the drying is 65~80 DEG C.
This application provides a kind of Herbicidal combinations comprising: 2,4-D salt, metsulfuron-methyl and dicamba salt；The 2,4-D
Salt is 2,4-D alkali metal salt or 2, and 4-D amine salt, the dicamba salt is dicamba alkali metal salt or dicamba amine salt.The application
By being compounded 2,4-D salt, metsulfuron-methyl and dicamba salt, the Herbicidal combinations made have the Herbicidal combinations of offer
Preferable drug effect.
Further, this application provides a kind of preparation methods of herbicidal formulations, utilize 2,4-D, dicamba and alkalinity
Compound carries out solid (liquid) reaction, thus be uniformly mixed final herbicidal formulations, stability it is good, and good drug efficacy.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still
It should be appreciated that these descriptions are only further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
Poor for 2,4-D in the prior art, dicamba and metsulfuron-methyl list formulation efficacy, compound formulation stability difference is asked
Topic, it is provided by the present application the embodiment of the invention discloses the preparation method of a kind of Herbicidal combinations, herbicidal formulations and herbicidal formulations
Herbicidal combinations and herbicidal formulations all have preferable drug effect, and can prepare the good weeding system of stability according to preparation method
Agent.Specifically, this application provides a kind of Herbicidal combinations comprising:
2,4-D salt, metsulfuron-methyl and dicamba salt；2, the 4-D salt is 2,4-D alkali metal salt or 2,4-D amine salt, the wheat
Grass fear salt is dicamba alkali metal salt or dicamba amine salt.
In the Herbicidal combinations of the application, 2,4-D salt are to be reacted by 2,4-D with alkali compounds, same wheat
Grass fear salt is also to be reacted by dicamba with alkali compounds；Wherein 2,4-D salt is 2,4-D alkali metal salt or 2,4-D amine
Salt, the dicamba salt are dicamba alkali metal salt or dicamba amine salt.In this application, 2,4- in the Herbicidal combinations
When D salt is 2,4-D alkali metal salt, the dicamba salt is preferably dicamba alkali metal salt；The 2,4-D salt is 2,4-D amine salt
When, the dicamba salt is preferably dicamba amine salt.
In the application, the mass ratio of 2, the 4-D salt, metsulfuron-methyl and dicamba salt is (30~50): 1:(10~20), institute
2,4-D salt is stated with the dicamba salt in terms of acid；In certain embodiments, 2, the 4-D salt, metsulfuron-methyl and dicamba salt
Mass ratio is (35~45): 1:(12~16), 2, the 4-D salt is with the dicamba salt in terms of acid；In certain embodiments,
The mass ratio of 2, the 4-D salt, metsulfuron-methyl and dicamba salt is (36~39): 1:(13~14), 2, the 4-D salt and the wheat
Grass fear salt is in terms of acid.
Present invention also provides application of the above-mentioned Herbicidal combinations in management of weeds；Herbicidal combinations provided by the present application
Has preferable preventive effect to annual broadleaf weed in graminous pasture.
Present invention also provides a kind of herbicidal formulations comprising can connect in Herbicidal combinations described in above scheme and pesticide
The auxiliary material received.
Auxiliary material therein includes surfactant and inorganic filler, and wherein inorganic filler should select water-soluble good, room temperature
The fast inorganic salts of lower solution rate, and non-stimulated, physical and chemical performance should be selected to stablize, it has no adverse effects to crop or has to crop
The substance of benefit；Specifically, herein described inorganic filler is selected from sodium sulphate, ammonium sulfate, sodium chloride, sodium tripolyphosphate, urea, sea
One of mosanom, sodium nitrate, potassium sulfate and sodium carboxymethylcellulose are a variety of；In a particular embodiment, described inorganic to fill out
Material is selected from one of potassium sulfate, sodium sulphate, ammonium sulfate and sodium chloride or a variety of.The surfactant is selected from ox ester amine polyoxy
Vinethene, alkyl glycosides, polyoxyethylene nonylphenol, aliphatic amine polyoxyethylene ether, ethylene oxide-propylene oxide block copolymer,
Alkylphenol-polyethenoxy polyethenoxy ether, polyoxyethylene fatty acid, methyl oxirane, fatty alcohol polyoxyethylene ether alkylnaphthalene sulphur
Two or more in sour formaldehyde condensation products, polycarboxylic acid salt, naphthalene sulfonate and lauryl sulfate；In specific embodiment
In, the surfactant is selected from lauryl sodium sulfate and polycarboxylate.
In the herbicidal formulations, the content of the active component is 1~75wt%, in certain embodiments, the work
Property component content be 40~75wt%, in certain embodiments, the content of the active component is 60~75wt%.
The dosage form of herein described herbicidal formulations be it is well known to those skilled in the art, it is in a particular embodiment, described to remove
The dosage form of careless preparation is water-soluble granule or water dispersible granules.
The present invention also provides the preparation methods of the herbicidal formulations, comprising the following steps:
Dicamba, 2,4-D, alkali compounds are mixed with auxiliary material, reacts, obtains initial reactant；The alkalinity chemical combination
Object is the alkali compounds and organic amine compound of alkali metal；
The initial reactant is mixed with metsulfuron-methyl, then successively obtains herbicidal formulations by being granulated, drying and sieve.
During preparing herbicidal formulations, dicamba, 2,4-D, alkali compounds and auxiliary material are mixed first, reaction,
Obtain initial reactant；In the process, 2,4-D and dicamba are acid, and solid (liquid) occurs with alkaline matter and reacts generation
Water soluble salt.In the process, the ratio of the dicamba and 2, the mole of the integral molar quantity and alkali compounds of 4-D is
1:(0.95~1.2), preferably 1:(1~1.1)；The alkali compounds is very little, and reaction is not thorough, and final products are when in use
It will appear a large amount of water-insolubles, easily blocking spray head, cause irregular by spraying；Alkali compounds is too many, and pH is too strong, is unfavorable for product medicine
The performance of effect.More specifically, during preparing herbicidal formulations, the content of the dicamba is greater than 0 and is less than or equal to
The content of 20wt%, 2, the 4-D are greater than 0 and are less than or equal to 60wt%, and the content of the alkali compounds is greater than 0 and is less than etc.
In 20wt%, the content of the metsulfuron-methyl is greater than 0 and is less than or equal to 2wt%, and the content of the surfactant is 2~
10wt%, the inorganic filler are surplus.Alkali compounds in the application concretely potassium hydroxide, sodium hydroxide, carbonic acid
The various aminated compounds such as potassium, sodium carbonate and dimethylamine, ammonium hydroxide.
In above process, the temperature of the reaction is 45~55 DEG C, and the time of the reaction is 40~60min.
According to the present invention, after obtaining initial reactant, then the initial reactant is mixed with metsulfuron-methyl, using making
Grain, drying and screening, obtain herbicidal formulations.It is described to be granulated, dry and sieve army for ordinary skill in the art means, herein not
Particularly limited.The temperature of the granulation is not higher than 50 DEG C, and the temperature of the drying is 65~80 DEG C.Weeding system at this time
The dosage form of agent is granula, specially water-soluble granule or water dispersible granules.
Herbicidal combinations provided by the present application are the compoundings of three kinds of raw materials, and drug effect is preferable, and joined alkali in preparation process
Property compound, the preparation of formation is uniformly mixed, and good drug efficacy, granular preparation is environmentally friendly preparation, and transportation cost reduces.
For a further understanding of the present invention, below with reference to embodiment to Herbicidal combinations provided by the invention, herbicidal formulations
It is described in detail, protection scope of the present invention is not limited by the following examples.
Embodiment 1
By 18.9g dicamba (content 98%), 54.9g 2,4-D (content 96%), (48% is water-soluble for 39.5g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 60min, 1g dodecyl sulphur is added
Sour sodium, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 2
By 18.9g dicamba (content 98%), 54.9g 2,4-D (content 96%), (48% is water-soluble for 39.5g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 30min, 1g dodecyl sulphur is added
Sour sodium, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 3
By 18.9g dicamba (content 98%), 54.9g 2,4-D (content 96%), (48% is water-soluble for 39.5g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g dodecyl sulphate is added
Sodium, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by being granulated
SG product is made after (prilling temperature is lower than 50 DEG C), 85 DEG C of drying, screening.
Embodiment 4
By 18.9g dicamba (content 98%), 54.9g 2,4-D (content 96%), (48% is water-soluble for 39.5g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g dodecyl sulphate is added
Sodium, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by being granulated
SG product is made after (prilling temperature is 60 DEG C), 65 DEG C of drying, screening.
Embodiment 5
By 18.9g dicamba (content 98%), 54.9g 2,4-D (content 96%), (48% is water-soluble for 39.5g potassium hydroxide
Liquid) and sodium chloride ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g 12 is added
Sodium alkyl sulfate, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material,
SG product is made after granulation (prilling temperature is 45 DEG C), 65 DEG C of drying, screening.
Embodiment 6
By 18.9g dicamba (content 98%), 54.9g 2,4-D (content 96%), (48% is water-soluble for 39.5g sodium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 60min, 1g dodecyl sulphate is added
Sodium, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sodium salt is made and mediates material, by being granulated
SG product is made after (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 7
By 10.7g dicamba (content 98%), 32.8g 2,4-D (content 96%), (48% is water-soluble for 23.3g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g dodecyl sulphur is added
Sour sodium, 3.7g polycarboxylate and 1.1g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 8
By 8.6g dicamba (content 98%), 22.0g 2,4-D (content 96%), (48% is water-soluble for 16.4g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g dodecyl sulphur is added
Sour sodium, 3.7g polycarboxylate and 0.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 9
By 18.9g dicamba (content 98%), 54.9g 2,4-D (content 96%), (48% is water-soluble for 34.8g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g dodecyl sulphur is added
Sour sodium, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 10
By 13.5g dicamba (content 98%), 51.6g 2,4-D (content 96%), (48% is water-soluble for 27.2g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g dodecyl sulphur is added
Sour sodium, 3.7g polycarboxylate and 1.1g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 11
By 19.5g dicamba (content 98%), 56.8g 2,4-D (content 96%), (48% is water-soluble for 40.8g potassium hydroxide
Liquid), ammonium sulfate 3g and sodium sulphate 1.7g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 50min, 1g dodecyl sulphur is added
Sour sodium, 3.7g polycarboxylate and 1.4g metsulfuron-methyl (content 96%) mix 20min, and dicamba sylvite is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 12
By 17.3g dicamba (content 98%), 35.3g 2,4-D (content 96%), (32% is water-soluble for 30.2g sodium hydroxide
Liquid), ammonium sulfate 15g and sodium chloride 15.4g under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 30min, 2g dodecyl is added
Sodium sulphate, 3g polycarboxylate and 1.2g metsulfuron-methyl (content 96%) mix 20min, and dicamba sodium salt is made and mediates material, by making
SG product is made after grain (prilling temperature is lower than 50 DEG C), 70 DEG C of drying, screening.
Embodiment 13
11.2g dicamba (content 98%), 34.3g 2,4-D (content 96%), 28.8g potassium carbonate, ammonium sulfate 30g are existed
Under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 30min, 2g lauryl sodium sulfate, 3.3g polycarboxylate and 1.1g methylsulphur is added
Grand (content 96%) mixes 20min, and dicamba sylvite is made and mediates material, by granulation (prilling temperature is lower than 50 DEG C), 70 DEG C of bakings
SG product is made after dry, screening.
Embodiment 14
13.7g dicamba (content 98%), 41.9g 2,4-D (content 96%), 27.0g sodium carbonate, sodium chloride 17g are existed
Under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 30min, 3.1g lauryl sodium sulfate, 4g polycarboxylate and 1.4g methylsulphur is added
Grand (content 96%) mixes 20min, and dicamba sodium salt is made and mediates material, by granulation (prilling temperature is lower than 50 DEG C), 70 DEG C of bakings
SG product is made after dry, screening.
Embodiment 15
By 17.3g dicamba (content 98%), 35.3g 2,4-D (content 96%), 28.5g dimethylamine (content 40%),
Potassium sulfate 10g, sodium chloride 16g are under 45~55 DEG C of normal pressures, Gu solid (liquid) reaction 30min, addition 1.3g lauryl sodium sulfate,
4g polycarboxylate and 0.9g metsulfuron-methyl (content 96%) mix 20min, and dicamba amine salt is made and mediates material, (is granulated by granulation
Temperature be lower than 50 DEG C), 70 DEG C drying, screening after be made SG product.
Embodiment 16
By 9.3g dicamba (content 98%), 19.0g 2,4-D (content 96%), 12.9g ammonium hydroxide (content 18%), sulfuric acid
Ammonium 13.2g, sodium chloride 40g are under 45~55 DEG C of normal pressures, Gu solid (liquid) reacts 30min, it is poly- that 2g lauryl sodium sulfate, 8g is added
Carboxylate and 0.6g metsulfuron-methyl (content 96%) mix 20min, and dicamba ammonium salt is made and mediates material, by granulation (prilling temperature
Lower than 50 DEG C), 70 DEG C drying, screening after be made SG product.
According to the performance of herbicidal formulations prepared by testing standard detection 1~embodiment of embodiment 16 in table 1, testing result
As shown in table 1.
The performance data table of the herbicidal formulations of 1 1~embodiment of embodiment 16 of table preparation
Broadleaf weeds prevents and treats field control effectiveness test in 17 grass family pasture of embodiment
1) test medicine
Test medicine are as follows: embodiment 6-11；
Comparison medicament: 60% water dispersible granules of metsulfuron-methyl (commercially available), 85% soluble powder of 2,4 D sodium salt (commercially available), wheat
Grass fear 480g/L aqua (commercially available)；
2) experimental condition and application method
It experimental field selects to hold in the palm in Xinjiang Yili Ning County and draws Soviet Union grassland, herbage growing way is uniformly neat, and level of growth is consistent, weeds
It is evenly distributed, it is representative.
Instrument used is -16 type knapsack hand sprayer of workers and peasants, and entire test process sprays 1 time altogether, and cauline leaf is spraying, is used
750kg/ hectares of water；Weather is good during test, and the application same day is fine, non-rainfall in 7 days after medicine；
Graminous pasture main weeds are as follows: Chenopodiaceae, field thistle, Horseweed Herb, knotweed etc.；
3) investigation method
60d investigates weeds remaining strain number, fresh weight after medicine, and calculates strain number preventive effect and fresh weight preventive effect, while indefinite after medicine
Phase observation is to herbage growth situation, and whether there is or not the generations of phytotoxicity for observation.
Calculation formula is as follows:
The check plot is clear water check plot, does not spray medicament.
4) experimental result
During experiment, invention formulation has no adverse effects to target crop in test scope of medication, and control efficiency is shown in
The following table 2.
2 metsulfuron-methyl of table, dicamba, 2,4-D compound preparation are to broadleaf weeds in graminous pasture
Control efficiency
As can be seen from Table 2, metsulfuron-methyl, dicamba, 2,4-D compounding system can effectively prevent broadleaf weeds in graminous pasture
Generation, control efficiency is superior to comparison medicament.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (12)
1. a kind of Herbicidal combinations, comprising: 2,4-D salt, metsulfuron-methyl and dicamba salt；The 2,4-D salt is 2,4-D alkali metal salt
Or 2,4-D amine salt, the dicamba salt is dicamba alkali metal salt or dicamba amine salt.
2. Herbicidal combinations according to claim 1, which is characterized in that 2, the 4-D salt, metsulfuron-methyl and dicamba salt
Mass ratio is (30~50): 1:(10~20)；The 2,4-D salt is with the dicamba salt in terms of acid.
3. Herbicidal combinations according to claim 1, which is characterized in that 2, the 4-D salt, metsulfuron-methyl and dicamba salt
Mass ratio is (35~45): 1:(12~16)；The 2,4-D salt is with the dicamba salt in terms of acid.
4. application of the described in any item Herbicidal combinations of claims 1 to 3 in management of weeds.
5. acceptable auxiliary in a kind of herbicidal formulations, including the described in any item Herbicidal combinations of claims 1 to 3 and pesticide
Material.
6. herbicidal formulations according to claim 5, which is characterized in that the auxiliary material includes that surfactant is filled out with inorganic
Material.
7. herbicidal formulations according to claim 6, which is characterized in that the surfactant is selected from ox ester amine polyoxyethylene
Ether, alkyl glycosides, polyoxyethylene nonylphenol, aliphatic amine polyoxyethylene ether, ethylene oxide-propylene oxide block copolymer, alkyl
Phenol polyethenoxy polyethenoxy ether, polyoxyethylene fatty acid, methyl oxirane, fatty alcohol polyoxyethylene ether alkyl naphthalene sulfonic acid first
Two or more in aldehyde condensate, polycarboxylic acid salt, naphthalene sulfonate and lauryl sulfate, the inorganic filler are selected from sulphur
In sour sodium, sodium chloride, sodium tripolyphosphate, urea, sodium alginate, ammonium sulfate, sodium nitrate, potassium sulfate and sodium carboxymethylcellulose
It is one or more.
8. herbicidal formulations according to claim 5, which is characterized in that the Herbicidal combinations are the 1 of the herbicidal formulations
~75wt%.
9. preparation method according to claim 5, which is characterized in that the dosage form of the herbicidal formulations be water-soluble granule or
Water dispersible granules.
10. a kind of preparation method of herbicidal formulations, which comprises the following steps:
Dicamba, 2,4-D, alkali compounds are mixed with auxiliary material, reacts, obtains initial reactant；The alkali compounds is
The alkali compounds and organic amine compound of alkali metal；
The initial reactant is mixed with metsulfuron-methyl, then successively obtains herbicidal formulations by being granulated, drying and sieve.
11. preparation method according to claim 10, which is characterized in that using the herbicidal formulations as base, the dicamba
Content be greater than 0 and be less than or equal to 20wt%, the content of 2, the 4-D is greater than 0 and is less than or equal to 60wt%, the alkalinity chemical combination
The content of object is greater than 0 and is less than or equal to 20wt%, and the content of the metsulfuron-methyl is greater than 0 and is less than or equal to 2wt%, 2, the 4-D,
Dicamba is in terms of acid.
12. preparation method according to claim 10, which is characterized in that the temperature of the reaction is 45~55 DEG C, described
The time of reaction is 40~60min, and the temperature of the granulation is not higher than 50 DEG C, and the temperature of the drying is 65~80 DEG C.
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| CN201711096083.9A Pending CN109757483A (en) | 2017-11-09 | 2017-11-09 | Herbicidal combinations, herbicidal formulations and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696600A (en) * | 2012-06-25 | 2012-10-03 | 山东潍坊润丰化工有限公司 | Herbicidal composition containing 2,4-D and florasulam and preparation method and application thereof |
| CN104604914A (en) * | 2013-11-04 | 2015-05-13 | 南京华洲药业有限公司 | Dicamba and iodosulfuron-methyl sodium herbicidal composition and application thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696600A (en) * | 2012-06-25 | 2012-10-03 | 山东潍坊润丰化工有限公司 | Herbicidal composition containing 2,4-D and florasulam and preparation method and application thereof |
| CN104604914A (en) * | 2013-11-04 | 2015-05-13 | 南京华洲药业有限公司 | Dicamba and iodosulfuron-methyl sodium herbicidal composition and application thereof |
Non-Patent Citations (1)
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| 王茂金等: "甲磺隆和2,4-D丁酯混用防除麦田杂草的效果", 《杂草学报》 * |
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