CN109287648A - One kind preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide and preparation method thereof and application method - Google Patents
One kind preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide and preparation method thereof and application method Download PDFInfo
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- CN109287648A CN109287648A CN201811278404.1A CN201811278404A CN109287648A CN 109287648 A CN109287648 A CN 109287648A CN 201811278404 A CN201811278404 A CN 201811278404A CN 109287648 A CN109287648 A CN 109287648A
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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
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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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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Abstract
The invention belongs to herbicide technology fields, and in particular to one kind is novel to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide and preparation method thereof and application method.The herbicide includes the component of following parts by weight, 2,4-D 40-90 parts of butyl esters；10-50 parts of tribenuron-methyl；40-70 parts of urea；1-10 parts of anionic surfactant；5-15 parts of emulsifier；Poly- trisiloxanes 4-8 parts.Herbicide provided by the invention is suitable for the natural meadow that Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski large area occurs, and after spraying 15 days, Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski starts death, quick；It can't detect medicament residue in general 10 days or so plants, 7 days or so, can't detect medicament residue in soil, degradation is fast, small toxicity, hence it is evident that improve herbage quality and yield.Meanwhile cost can reduce 77.8%, herdsman is greatly saved prevents and kill off spending.
Description
Technical field
The invention belongs to herbicide technology fields, and in particular to one kind is novel to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide and its system
Preparation Method and application method.
Background technique
Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski (Ligularia virgaurea) belongs to the perennial poisonous plant of composite family Ligularia From Sichuan, China, is distributed widely in blueness
Hide the Alpine Grasslands on plateau and Nepal area.Since the branches and leaves of Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski contain the toxic lotion of white, meeting after domestic animal feeding
It is poisoned to death.Meanwhile Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski has both seminal propagation and Propagation of Rhizomes ability, the cover degree in natural meadow always again on
It rises, the serious yield for reducing edible forage causes heavy losses to local animal husbandry development.
The control method for poisoning grass to grassland at present, which mainly has, manually excavates, using hands such as chemical herbicide and biological controls
Section.It is lower and serious to grassland destruction using manually not only efficiency is excavated but when poisoning careless large area generation；Using chemistry
Herbicide can be realized in a short time will poison the target prevented and kill off of grass, but some chemical agents in the soil the residence time compared with
It is long, also there is damage to edaphon.Biological weed killer using the plant with activity of weeding as donor, using target weeds as
Receptor has the active material of activity of weeding by separating, achievees the purpose that prevention target weeds.Current study show that South America
Swollen toad chrysanthemum, bidens pilosa and adenostemma laveniaKuntze activity in vivo ingredient can be used as botanical herbicides for prevention and control Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski.Although
Biological weed killer does not generate pollution, effect is stablized persistently, but the difficulty for extracting herbicidal active compounds is big, and the period of putting into production is long,
At high cost, these factors limit its large scale application.
Currently, chemical weed control method is still using more extensive herbicidal methods, and researchers have been devoted to drop
The pedo relict rate of low chemical herbicide improves herbicidal effect etc..For example, Chinese patent literature CN103907629B discloses one
Kind prevent and kill off the complex weedicide and its preparation and application of Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski, the herbicide by following weight percents content original
Material is made: tribenuron-methyl 2-40%；Clopyralid 5-40%；Bentazon 40-90%, surplus are adjuvant.The herbicide passes through
The mutual synergistic effect of tribenuron-methyl, clopyralid, Bentazon inhibits photosynthesis, the water metabolism of Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski cauline leaf
And cell division, it causes nutrition hungry, makes Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski physiological dysfunction and aerial part is caused to dry up rapidly, 30 after application
It, above-ground plant parts is withered, is up to 95% or more to Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski preventive effect, and residual is no more than 40 days in the soil, belongs to
In environmentally friendly herbicide, have many advantages, such as low phytotoxicity, small toxicity.Although this patent document has been improved to yellow broom
The herbicidal effect of Farfugium kaemferi, while reducing in soil and remaining, but since host agent dosage is larger, component is not easy to obtain, high expensive, together
When, responding time and pedo relict time are long etc. needs further to improve.
Summary of the invention
Therefore, in the prior art Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide is prevented and kill off the technical problem to be solved in the present invention is that overcoming
The disadvantages of at high cost, component is not easy to obtain, and responding time is long and the pedo relict time is long, to provide, one kind is novel to prevent and kill off yellow broom
Farfugium kaemferi complex weedicide and preparation method thereof and application method.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
One kind preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including host agent and auxiliary agent, wherein the host agent includes following parts by weight
Component,
40-90 parts of 2,4-D butyl ester；
10-50 parts of tribenuron-methyl；
40-70 parts of urea；
The auxiliary agent includes the component of following parts by weight,
1-10 parts of anionic surfactant；
5-15 parts of emulsifier；
Ethyoxyl is trisiloxanes 4-8 parts modified.
Preferably, the host agent includes the component of following parts by weight,
55-80 parts of 2,4-D butyl ester；
25-45 parts of tribenuron-methyl；
50-60 parts of urea；
The auxiliary agent includes the component of following parts by weight,
3-8 parts of anionic surfactant；
8-12 parts of emulsifier；
Ethyoxyl is trisiloxanes 5-7 parts modified.
Further, the anionic surfactant can be the anionic surfactant of herbicide field routine；
Most preferably, the anionic surfactant is neopelex.
Further, the emulsifier can be the common emulsifier in herbicide field；Most preferably, the emulsifier is
Alkyl phenol polyoxyethylene ether.
A kind of above-mentioned preparation method for preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, comprising the following steps:
2,4-D butyl ester is diluted with water, tribenuron-methyl is added under agitation, continues to stir certain time, auxiliary agent is added,
Anionic surfactant, emulsifier and the modified trisiloxanes of ethyoxyl are sequentially added, is uniformly mixed, obtains mixture A, it will
The mixture A individually encapsulates spare with urea.
Further, 2, the 4-D butyl ester is diluted with water in step, and the volume ratio of 2,4-D butyl esters and water is 1:100-
400。
A kind of application method for preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide that the above method is prepared, by the mixture A
With the water dilution of 40-65 times of volume, the water of urea (10-40) times quality is diluted, then with the dilution of the mixture A
Mixing, foliage-spray.
Preferably, spraying time is selected in Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski and blooms heading stage to full-bloom stage.
Preferably, prohibit after spraying and herd 10-15 days.At least prohibit after spraying and herd 10 days, will not detect weeding after general 10 days
Agent residual.
Technical solution of the present invention has the advantages that
It is provided by the invention it is novel prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, preventing and kill off cost is only 4 yuan/mu, and Shen in 2015
It is 18 yuan that report patent prevents and kill off cost per acre, and cost can reduce 77.8%, and herdsman is greatly saved prevents and kill off spending；Preventive effect
Highest can reach 99%, also be improved compared to comparative example.
15 days after spraying, Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski starts death, quick；It can't detect drug in general 10 days or so plants
Residual 7 days or so, can't detect medicament residue in soil, and the residence time is obviously shortened, and degradation is fast, small toxicity.
Meanwhile herbicide provided by the invention can also improve Forage yield and quality, declaring patent within 2015 can improve
20% meadow grass yield, good forage ratio increase by 10%；And the present invention can be mentioned quickly due to adding a small amount of nitrogen when application
High good forage is in the ratio on meadow, and 60% or more volume increase, wherein dogstail ratio increases by 50% or more than check plot.
Specific embodiment
There is provided following embodiments is to preferably further understand the present invention, it is not limited to the best embodiment party
Formula is not construed as limiting the contents of the present invention and protection scope, anyone under the inspiration of the present invention or by the present invention and its
The feature of his prior art is combined and any and identical or similar product of the present invention for obtaining, all falls within of the invention
Within protection scope.
Specific experiment step or condition person are not specified in embodiment, according to the literature in the art described routine experiment
The operation of step or condition can carry out.Reagents or instruments used without specified manufacturer, being can be by commercially available acquisition
Conventional reagent product.
1 part=10g in following embodiment and comparative example.
Embodiment 1
The present embodiment provides one kind to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component, 2,4-D 40 parts of butyl esters；Benzene
Grand 50 parts of sulphur；40 parts of urea；10 parts of neopelex；5 parts of alkyl phenol polyoxyethylene ether；Ethyoxyl is modified trisiloxanes
8 parts.
The herbicide the preparation method comprises the following steps:
2,4-D butyl ester is slowly added into agitator tank, is diluted with 5 liters of tap water, is stirred under 50 revs/min of revolving speeds
5 minutes, the solution after dilution is uniformly mixed；Then, it weighs in the tribenuron-methyl pulvis investment agitator tank of corrresponding quality and stirs 10
Minute, revolving speed is 80 revs/min；Then, dodecyl sodium sulfate is sequentially added, alkyl phenol polyoxyethylene ether and ethyoxyl are modified
Trisiloxanes, control revolving speed stir 30 minutes at 120 revs/min, realize that each medicament is sufficiently mixed in agitator tank, obtains mixed liquor A,
Urea is individually dispensed with mixed liquor A spare.
Embodiment 2
The present embodiment provides one kind to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component, 2,4-D 90 parts of butyl esters；Benzene
Grand 10 parts of sulphur；70 parts of urea；1 part of neopelex；15 parts of alkyl phenol polyoxyethylene ether；Ethyoxyl is modified trisiloxanes
4 parts.
The herbicide the preparation method comprises the following steps:
2,4-D butyl ester is slowly added into agitator tank, is diluted with 9 liters of tap water, is stirred under 50 revs/min of revolving speeds
5 minutes, the solution after dilution is uniformly mixed；Then, it weighs in the tribenuron-methyl pulvis investment agitator tank of corrresponding quality and stirs 10
Minute, revolving speed is 80 revs/min；Then, dodecyl sodium sulfate is sequentially added, alkyl phenol polyoxyethylene ether and ethyoxyl are modified
Trisiloxanes, control revolving speed stir 30 minutes at 120 revs/min, realize that each medicament is sufficiently mixed in agitator tank, obtains mixed liquor A,
Urea is individually dispensed with mixed liquor A spare.
Embodiment 3
The present embodiment provides one kind to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component, 2,4-D 60 parts of butyl esters；Benzene
Grand 30 parts of sulphur；55 parts of urea；6 parts of neopelex；10 parts of alkyl phenol polyoxyethylene ether；Ethyoxyl is modified trisiloxanes
6 parts.
The herbicide the preparation method comprises the following steps:
2,4-D butyl ester is slowly added into agitator tank, is diluted with 6 liters of tap water, is stirred under 50 revs/min of revolving speeds
5 minutes, the solution after dilution is uniformly mixed；Then, it weighs in the tribenuron-methyl pulvis investment agitator tank of corrresponding quality and stirs 10
Minute, revolving speed is 80 revs/min；Then, dodecyl sodium sulfate is sequentially added, alkyl phenol polyoxyethylene ether and ethyoxyl are modified
Trisiloxanes, control revolving speed stir 30 minutes at 120 revs/min, realize that each medicament is sufficiently mixed in agitator tank, obtains mixed liquor A,
Urea is individually dispensed with mixed liquor A spare.
Embodiment 4
The present embodiment provides one kind to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component, 2,4-D 55 parts of butyl esters；Benzene
Grand 45 parts of sulphur；50 parts of urea；8 parts of neopelex；8 parts of alkyl phenol polyoxyethylene ether；Ethyoxyl is modified trisiloxanes 7
Part.
The herbicide the preparation method comprises the following steps:
2,4-D butyl ester is slowly added into agitator tank, is diluted with 10 liters of tap water, is stirred under 50 revs/min of revolving speeds
It mixes 5 minutes, the solution after dilution is uniformly mixed；Then, it weighs and is stirred in the tribenuron-methyl pulvis investment agitator tank of corrresponding quality
10 minutes, revolving speed was 80 revs/min；Then, dodecyl sodium sulfate is sequentially added, alkyl phenol polyoxyethylene ether and ethyoxyl change
Property trisiloxanes, control revolving speed 120 revs/min stir 30 minutes, realize agitator tank in each medicament be sufficiently mixed, obtain mixed liquor
A individually dispenses urea with mixed liquor A spare.
Embodiment 5
The present embodiment provides one kind to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component, 2,4-D 80 parts of butyl esters；Benzene
Grand 25 parts of sulphur；60 parts of urea；3 parts of neopelex；12 parts of alkyl phenol polyoxyethylene ether；Ethyoxyl is modified trisiloxanes
5 parts.
The herbicide the preparation method comprises the following steps:
2,4-D butyl ester is slowly added into agitator tank, is diluted with 11 liters of tap water, is stirred under 50 revs/min of revolving speeds
It mixes 5 minutes, the solution after dilution is uniformly mixed；Then, it weighs and is stirred in the tribenuron-methyl pulvis investment agitator tank of corrresponding quality
10 minutes, revolving speed was 80 revs/min；Then, dodecyl sodium sulfate is sequentially added, alkyl phenol polyoxyethylene ether and ethyoxyl change
Property trisiloxanes, control revolving speed 120 revs/min stir 30 minutes, realize agitator tank in each medicament be sufficiently mixed, obtain mixed liquor
A individually dispenses urea with mixed liquor A spare.
Embodiment 6
The present embodiment provides one kind to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component, 2,4-D 50 parts of butyl esters；Benzene
Grand 20 parts of sulphur；55 parts of urea；3 parts of neopelex；8 parts of alkyl phenol polyoxyethylene ether；Ethyoxyl is modified trisiloxanes 5
Part.
The herbicide the preparation method comprises the following steps:
2,4-D butyl ester is slowly added into agitator tank, is diluted with 6 liters of tap water, is stirred under 50 revs/min of revolving speeds
5 minutes, the solution after dilution is uniformly mixed；Then, it weighs in the tribenuron-methyl pulvis investment agitator tank of corrresponding quality and stirs 10
Minute, revolving speed is 80 revs/min；Then, dodecyl sodium sulfate is sequentially added, alkyl phenol polyoxyethylene ether and ethyoxyl are modified
Trisiloxanes, control revolving speed stir 30 minutes at 120 revs/min, realize that each medicament is sufficiently mixed in agitator tank, obtains mixed liquor A,
Urea is individually dispensed with mixed liquor A spare.
Embodiment 7
The present embodiment provides one kind to prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component, 2,4-D 80 parts of butyl esters；Benzene
Grand 40 parts of sulphur；60 parts of urea；7 parts of wooden calcium sulfonate；11 parts of alkyl phenol polyoxyethylene ether；Ethyoxyl is modified 7 parts of trisiloxanes.
The herbicide the preparation method comprises the following steps:
2,4-D butyl ester is slowly added into agitator tank, is diluted with 8 liters of tap water, is stirred under 50 revs/min of revolving speeds
5 minutes, the solution after dilution is uniformly mixed；Then, it weighs in the tribenuron-methyl pulvis investment agitator tank of corrresponding quality and stirs 10
Minute, revolving speed is 80 revs/min；Then, dodecyl sodium sulfate is sequentially added, alkyl phenol polyoxyethylene ether and ethyoxyl are modified
Trisiloxanes, control revolving speed stir 30 minutes at 120 revs/min, realize that each medicament is sufficiently mixed in agitator tank, obtains mixed liquor A,
Urea is individually dispensed with mixed liquor A spare.
Comparative example 1
This comparative example provides one kind and prevents and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, including following component: 20 parts of tribenuron-methyl, dichloro pyrrole
30 parts, 40 parts of Bentazon, 5 parts of neopelex of pyridine acid；4.8 parts of alkyl phenol polyoxyethylene ether, poly- trisiloxanes 0.2
Part.By in tribenuron-methyl weighted by weight ratio, Bentazon, clopyralid investment blender, 5L tap water is added, uniformly
Then neopelex is added by weight ratio, alkyl phenol polyoxyethylene ether, changes by stirring, stirring rate 70r/min
Property after poly- trisiloxanes, be sufficiently stirred mixing, bottling sealing.
Comparative example 2
With comparative example 1, difference is that herbicide further includes 55 parts of urea for composition and preparation method.
Comparative example 3
With comparative example 1, difference is that herbicide further includes 55 parts of ammonium dihydrogen phosphates for composition and preparation method.
Concrete application case
By the herbicide in 1-7 of the embodiment of the present invention and comparative example 1-3, it is being located at Hainan, Qinghai Province state Guinan County within 2013
The township Ta Xiu Gongga village Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski, which endangers, carries out small area preventing iron test on serious natural meadow, bloom heading in Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski
Phase to full-bloom stage (early July to mid-August) carries out cauline leaf spraying treatment, spraying using conventional knapsack sprayer, per hectare
Dosage 3000g.Spraying method: the water of 50 times of volumes of the mixture A is diluted, and urea is dilute with the water of 30 times of quality
It releases, then mixes urea dilution with the dilution of the mixture A, spray height is 1 meter when foliage-spray sprays, spraying swath
It is 2 meters, leg speed is 1 meter per second.Herbicidal effect is counted, concrete outcome is shown in Table 1:
The herbicidal effect of each herbicide of table 1
From the data in table it is found that as can be seen from the table, 15 days after chemical control, application plant shows stalk volume
Song, leaf chlorosis, growth are obviously suppressed.Meanwhile the 7th day shows complex weedicide to application Soils In The Region retention analysis
Each component remains be below GB standard in the soil, and in addition most area does not detect to remain.
By before the prevention and treatment of 1-7 of the embodiment of the present invention and comparative example 1 and prevention and treatment 40 days after each species cover degree in meadow and biomass
It is counted, wherein the data of embodiment are the average value after embodiment 1-7 statistics.Concrete outcome is shown in Table 2:
2 Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide of table prevents and kill off each species cover degree in meadow and biomass variety after Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski
From Table 2, it can be seen that after preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski using complex weedicide provided in an embodiment of the present invention, yellow broom bag
My biomass and cover degree quickly reduce, and the cover degree of meadow main edible herbage gramineae plant and biomass quickly increase, together
When, after Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski is prevented and kill off, the cover degree and biomass of each species in meadow increase.It is worth noting that, Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski is anti-
After removing, compositae plant biomass and cover degree also have the increase of certain amplitude.Prevent well as it can be seen that the medicament has Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski
Except effect, while to other compositae plants safety, the single-minded characteristic of its target is sufficiently shown.And the effect of embodiment is than comparison
Example will be got well.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And thus amplify out it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. one kind prevents and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, which is characterized in that the component including following parts by weight,
2. according to claim 1 prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, which is characterized in that the group including following parts by weight
Point,
3. preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide according to according to claim 1, which is characterized in that the anionic surface
Activating agent is neopelex.
4. according to claim 1 prevent and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, which is characterized in that the emulsifier is alkyl phenol
Polyoxyethylene ether.
5. a kind of described in any item preparation methods for preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide of claim 1-4, which is characterized in that
The following steps are included:
2,4-D butyl ester is diluted with water, tribenuron-methyl is added under agitation, continues to stir certain time, auxiliary agent is added, successively
Anionic surfactant, emulsifier and the modified trisiloxanes of ethyoxyl is added, is uniformly mixed, obtains mixture A, it will be described
Mixture A individually encapsulates spare with urea.
6. the preparation method according to claim 5 for preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, which is characterized in that described 2,4-
D butyl ester is diluted with water in step, and the volume ratio of 2,4-D butyl esters and water is 1:100-400.
7. a kind of application method for preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide that 5 or 6 the method for claim is prepared, special
Sign is, the water of 40-65 times of volume of the mixture A is diluted, the water of urea (10-40) times quality is diluted, then
It is mixed with the dilution of the mixture A, foliage-spray.
8. the application method according to claim 7 for preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide, which is characterized in that spraying time
It is selected in Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski and blooms heading stage to full-bloom stage.
9. according to the application method for preventing and kill off Ligularia virgaurea (Maxim.) Mattf. Ex Rehd. Etkobuski complex weedicide described in claim 5,6 or 8, which is characterized in that spray
Prohibit after applying and herds 10-15 days.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111184015A (en) * | 2019-12-20 | 2020-05-22 | 陕西美都生态科技有限公司 | Ligularia virgaurea herbicide with higher absorption and utilization rate and preparation method thereof |
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| CN109287648B (en) | 2021-05-18 |
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