CN104145975B - A kind of Herbicidal combinations and preparation thereof - Google Patents
A kind of Herbicidal combinations and preparation thereof Download PDFInfo
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- CN104145975B CN104145975B CN201410414298.0A CN201410414298A CN104145975B CN 104145975 B CN104145975 B CN 104145975B CN 201410414298 A CN201410414298 A CN 201410414298A CN 104145975 B CN104145975 B CN 104145975B
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- herbicidal combinations
- isoproturon
- pinoxaden
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- 238000002360 preparation method Methods 0.000 title claims abstract description 39
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- 239000005597 Pinoxaden Substances 0.000 claims abstract description 75
- MGOHCFMYLBAPRN-UHFFFAOYSA-N pinoxaden Chemical compound CCC1=CC(C)=CC(CC)=C1C(C1=O)=C(OC(=O)C(C)(C)C)N2N1CCOCC2 MGOHCFMYLBAPRN-UHFFFAOYSA-N 0.000 claims abstract description 74
- 241000196324 Embryophyta Species 0.000 claims abstract description 65
- 241000209140 Triticum Species 0.000 claims abstract description 27
- 235000021307 Triticum Nutrition 0.000 claims abstract description 27
- 239000000575 pesticide Substances 0.000 claims abstract description 16
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Abstract
The present invention relates to field of pesticide preparation, particularly to a kind of Herbicidal combinations and preparation thereof.This Herbicidal combinations is made up of pinoxaden and isoproturon.The Herbicidal combinations that the present invention provides has synergistic function, can effectively prevent and kill off the grassy weed in wheat paddock and broad leaved weed, delay the generation of herbicide resistance, and reduce the pollution to environment, improve drug effect simultaneously, a drug can effectively prevent and treat grassy weed and broad leaved weed, reduces the usage amount of pesticide and uses kind, number of times.
Description
Technical field
The present invention relates to field of pesticide preparation, particularly to a kind of Herbicidal combinations and preparation thereof.
Background technology
Semen Tritici aestivi is one of staple food crop of northern China, rich in starch, protein, fat, mineral, calcium, ferrum, sulfur
Amine element, riboflavin, nicotinic acid and vitamin A etc., be the cereal crops of total output second in the world, the long-term cultivated area of China 3000
Many ten thousand hectares, it is only second to Monitoring of Paddy Rice Plant Area.
China's major part wheat paddock always has crop smothering in various degree to occur, and crop smothering area accounts for wheat planting area
More than 55%, wherein serious harm area accounts for 28%, and lost units accounts for the 15% of Semen Tritici aestivi total output.Therefore, domestic wheat paddock removes
The use ratio of grass agent nearly reaches 100%.
Pinoxaden (PINOXADEN), No. CAS is 243973-20-8, and molecular formula is C23H32N2O4, molecular weight is
400.516, it belongs to neophyl pyrazolines herbicide, and the mechanism of action is acetyl-CoA carboxylase (ACC) inhibitor, causes
Fatty acid biosynthesis block, makes cell division stop, and cell membrane is destructurized containing fat, causes weeds dead；There is interior suction
Conductivity, is mainly used in barley field and prevents and kill off annual gramineous weed, through toxicity test and field control effectiveness test, result table
Bright have good preventive effect to barley field annual gramineous weed such as wild oat, Herba Setariae Viridis, barnyard grass etc..Pinoxaden herbicide is also
It is the herbicide that wheat paddock is conventional, belongs to grass family foliar herbicide after Seedling.Effective, with safety especially to pernicious grassy weed
Agent mixes with certain proportion, for cereal crop, to grassy weed such as Alopecurus, Salvia japonica Thunb., amur foxtail, wild swallow
Wheat, rye grass, annual bluegrass, Herba Setariae Viridis, Beckmannia syzigachne (Steud.) Fern etc. have the preventive effect of excellence.
But, weeds of wheat with grassy weed and broad leaved weed as main weeds, and pinoxaden mainly to standing grain this
Section's Weed-control effect is excellent, to the broad leaved weed preventive effect extreme difference with Herba stellariae mediae as Typical Representative so that its overall preventive effect is relatively low.In order to entirely
Aspect protection Semen Tritici aestivi, from Weed infestation, needs to use multiple herbicide, so increases antagonism between each herbicide
Risk, and add dosage, add cost, harm environment and the safety of succession crop.Therefore it provides one is to standing grain
Undergraduate course weeds and broad leaved weed all have the wheat field herbicide of notable preventive effect to have important practical significance.
Summary of the invention
In view of this, the invention provides a kind of Herbicidal combinations and preparation thereof.In this Herbicidal combinations pinoxaden and
Isoproturon is compounding has synergistic function, can effectively prevent and kill off the grassy weed in wheat paddock and broad leaved weed, delay weeds
Drug-fast generation, and reduce the pollution to environment, improves drug effect simultaneously, and a drug can effectively prevent and treat grassy weed and wealthy
Leaf weeds, reduce the usage amount of pesticide and use kind, number of times.
In order to realize foregoing invention purpose, the present invention provides techniques below scheme:
The invention provides a kind of Herbicidal combinations, be made up of pinoxaden and isoproturon.
Pinoxaden is acetyl-CoA carboxylase inhibitor class herbicide, and medicine can be absorbed by grass cutting blade, then conduct
To separate living tissue, the lipid synthesis of suppression somatoblast, cause weeds dead.After general dispenser, 48 hours susceptible weeds stop raw
Long, in 1～2 week, grass cutting blade starts jaundice, 3～4 weeks, weeds are the most dead.This medicine can process at wheat growth stage stem and leaf
Prevent and kill off multiple grassy weed, can effectively prevent and kill off Itanlian rye, wild oat, Herba Setariae Viridis, amur foxtail, Alopecurus, hard grass,
The grassy weeds such as Beckmannia syzigachne (Steud.) Fern, caput grass.The response speed that after dispenser, weeds are injured and weather conditions, weeds kind, growth conditions
Etc. relevant.Pinoxaden is fast in degraded in soil, seldom by root absorption, the lowest soil activation, to succession crop without
Impact.Resistance of rainwater washing against, meets rain in after dispenser 1 hour and has substantially no effect on herbicidal effect.
Isoproturon is substituted urea class selective herbicide.After medicament is absorbed by plant root, teach and be accumulated in blade,
Inhibited photosynthesis, causes weeds dead.Can be used for preventing and kill off wheat paddock annual grassy weeds, as wheat sees in Herba Digitariae, amur foxtail, Japan
Annual gramineous weed and the broad leaved weed such as ma, annual bluegrass, hard grass, grass, wild oat, Hairy Bittercress, Stellaria alsine Grim., Herba chenopodii, cyclophanes thread.This
Medicament to 2～2.5 leaf phases, all can be used before tillering stage before crop broadcasts rear Seedling and after Seedling before weeds bud, and application method uses spray
Mist or apply pesticide-clay mixture.Winter crop the most after planting or medication after turning green spring can be met rain or pour water, can improve and remove after medication
Grass effect.
In different Herbicidal combinations, each active component is due to composition, structure, the difference of physicochemical property so that each active component
Between synergy be typically expressed as potentiation, summation action or antagonism.So-called potentiation is exactly different material
Between cooperate effect, its effect produced is more than the sum total of each composition effect；And summation action is exactly its effect produced
Fruit is equal to the sum total of each composition effect；Antagonism refers to when two kinds of materials act on living organism, and a kind of material interference is another
The effect of a kind of material, or the effect of interfering with an opponent each other, make the phenomenon that general effect declines.
The present invention, according to Sun Yunpei (Sun Y-P) method, calculates co-toxicity coefficient, evaluates azoles in Herbicidal combinations preparation of the present invention
Quinoline grass ester and two kinds of mixed interactions of different activities component of isoproturon.Result shows, pinoxaden and the matter of isoproturon
Amount than be 1:(1～60) co-toxicity coefficient be all higher than 120.Found by field control effectiveness test, pinoxaden and the matter of isoproturon
Amount than be 1:(1～60) ratio be used in mixed way time, each active component, without cross tolerance, has notable synergistic effect, can be effective
Prevent and kill off the grassy weed in wheat paddock and broad leaved weed.
As preferably, pinoxaden is 1:(1～60 with the mass ratio of isoproturon).
Preferably, pinoxaden is 1:(4～25 with the mass ratio of isoproturon).
It is highly preferred that the mass ratio of pinoxaden and isoproturon is 1:12.5.
Present invention also offers the application in preparing eliminating weed in wheat field Herbicidal combinations preparation of this Herbicidal combinations；
This Herbicidal combinations is made up of pinoxaden and isoproturon；As preferably, the mass ratio of pinoxaden and isoproturon be 1:(1～
60)；Preferably, pinoxaden is 1:(4～25 with the mass ratio of isoproturon)；It is highly preferred that pinoxaden and the matter of isoproturon
Amount ratio is 1:12.5.
Present invention also offers a kind of Herbicidal combinations preparation, can on Herbicidal combinations provided by the present invention and Pesticide Science
The adjuvant composition accepted；This Herbicidal combinations is made up of pinoxaden and isoproturon；As preferably, pinoxaden and isoproturon
Mass ratio is 1:(1～60)；Preferably, pinoxaden is 1:(4～25 with the mass ratio of isoproturon)；It is highly preferred that oxazoline is careless
Ester is 1:12.5 with the mass ratio of isoproturon.
In some embodiments that the present invention provides, Herbicidal combinations accounts for the percentage by weight of Herbicidal combinations preparation and is
10%～95%.
In some embodiments that the present invention provides, the dosage form of Herbicidal combinations preparation is wettable powder, water-dispersible grain
Agent, suspending agent or cream.
Present invention also offers this Herbicidal combinations preparation application in eliminating weed in wheat field.
The invention provides a kind of Herbicidal combinations and preparation thereof.This Herbicidal combinations is by pinoxaden and isoproturon group
Become.Being tested by Toxicity Determination, result display pinoxaden and the mass ratio of isoproturon are 1:(1～60) co-toxicity coefficient
Be all higher than 120, show two active component compounding there is synergistic function, pinoxaden and isoproturon mass ratio be 1:(4～
25) co-toxicity coefficient reaches 135.67～244.56, has the matter of obvious potentiation, especially pinoxaden and isoproturon
Amount is more notable than the potentiation for 1:12.5；Found by field control effectiveness test, pinoxaden and the mass ratio of isoproturon
For 1:(1～60) ratio when being used in mixed way, each active component without cross tolerance, has notable synergistic effect, can effectively prevent and kill off
Grassy weed in wheat paddock and broad leaved weed.
Additionally, the Herbicidal combinations of present invention offer and preparation thereof are compounding as effectively becoming using pinoxaden and isoproturon
Point, the two is had complementary advantages, and delays the generation of herbicide resistance, and reduces the pollution to environment, improves drug effect, a drug simultaneously
Can effectively prevent and treat grassy weed and broad leaved weed, reduce the usage amount of pesticide and use kind, number of times, it is possible to extensively applying
In agriculture field.
Detailed description of the invention
The invention discloses a kind of Herbicidal combinations and preparation thereof, those skilled in the art can use for reference present disclosure, suitable
Realize when improving technological parameter.Special needs to be pointed out is, all similar replacements and change are for a person skilled in the art
Being apparent from, they are considered as being included in the present invention.Method and the application of the present invention are entered by preferred embodiment
Having gone description, related personnel substantially can be to method described herein and application in without departing from present invention, spirit and scope
It is modified or suitably changes and combine, realize and apply the technology of the present invention.
The invention provides a kind of Herbicidal combinations, be made up of pinoxaden and isoproturon.
In order to ensure that co-toxicity coefficient is more than 120, two kinds of active component are made to produce synergistic functions, as preferably, oxazoline
Grass ester is 1:(1～60 with the mass ratio of isoproturon).
Preferably, pinoxaden is 1:(4～25 with the mass ratio of isoproturon).
It is highly preferred that the mass ratio of pinoxaden and isoproturon is 1:12.5.
Present invention also offers the application in preparing eliminating weed in wheat field Herbicidal combinations preparation of this Herbicidal combinations；
This Herbicidal combinations is made up of pinoxaden and isoproturon；As preferably, the mass ratio of pinoxaden and isoproturon be 1:(1～
60)；Preferably, pinoxaden is 1:(4～25 with the mass ratio of isoproturon)；It is highly preferred that pinoxaden and the matter of isoproturon
Amount ratio is 1:12.5.
Present invention also offers a kind of Herbicidal combinations preparation, can on Herbicidal combinations provided by the present invention and Pesticide Science
The adjuvant composition accepted；This Herbicidal combinations is made up of pinoxaden and isoproturon；As preferably, pinoxaden and isoproturon
Mass ratio is 1:(1～60)；Preferably, pinoxaden is 1:(4～25 with the mass ratio of isoproturon)；It is highly preferred that oxazoline is careless
Ester is 1:12.5 with the mass ratio of isoproturon.
In order to the weeds effectively prevented and kill off in wheat paddock, in some embodiments that the present invention provides, Herbicidal combinations
The percentage by weight accounting for Herbicidal combinations preparation is 10%～95%.
The present invention provide Herbicidal combinations preparation can by select corresponding carrier, surfactant, dispersant or
Other agricultural agents make various dosage form.In some embodiments that the present invention provides, the dosage form of Herbicidal combinations preparation is
Wettable powder, water dispersible granules, suspending agent or cream.
In some embodiments that the present invention provides, in Pesticide Science, acceptable adjuvant is selected from wetting agent, dispersant, disintegrate
A kind of or both mixture above in agent, thickening agent, antifreezing agent, preservative, thixotropic agent or carrier.But can connect in Pesticide Science
The adjuvant being subject to is not limited to this, and skilled person thinks that acceptable adjuvant is all the guarantor of the present invention in feasible Pesticide Science
Within the scope of protecting, the present invention does not limits at this.
In some embodiments that the present invention provides, Herbicidal combinations preparation is wettable powder.As preferably, this is wettable
Property powder formulation in complement to 100% containing active component 10-95%, wetting agent 1-10%, dispersant 1-10%, carrier.
In other embodiments that the present invention provides, Herbicidal combinations preparation is water dispersible granules.As preferably, this water
Dispersible granule dosage form is supplied containing active component 10-95%, wetting agent 1-6%, dispersant 1-8%, disintegrating agent 1-20%, carrier
To 100%.
In other embodiments that the present invention provides, Herbicidal combinations preparation is suspending agent.As preferably, this suspending agent
Containing active component 10-95%, dispersant 1-6%, wetting agent 1-4%, thickening agent 0.1-2.0%, antifreezing agent 1-in dosage form
6%, preservative 0.1-2%, thixotropic agent 0.1-5%, water complement to 100%.
In other embodiments that the present invention provides, Herbicidal combinations preparation is cream.As preferably, this cream dosage form
In complement to 100% containing active component 10-95%, emulsifying agent 1-30%, solvent.
Wetting agent is one of insecticides adjuvant, can make thing that is water insoluble or that be not soaked in water for water-moistened solid pesticide
Matter, its Main Function is surface tension or the interfacial tension reducing water, makes solid surface energy by the moistening of water institute, and it can make insoluble
After the pesticide of water is watered, it is made into suspension use, and medicinal liquid moistening and expansion on crop plant can be made, thus improve preventing and treating
Effect, reduces the generation of poisoning.The present invention provide some embodiments in, wetting agent is TERWET 1004, SP-2845W,
Morwet EFW, EMPICOL LX/B, pull open powder, sodium lauryl sulphate, dodecyl sodium naphthalene sulfonate, DBSA
A kind of or both mixture above in sodium, calcium dodecyl benzene sulfonate.But wetting agent is not limited to this, ability technology people
Member think feasible wetting agent all within protection scope of the present invention, the present invention does not limits at this.
Dispersant is a kind of to have lipophile and the interfacial agent of two kinds of opposite nature of hydrophilic in intramolecular simultaneously, can
Those difficulties of homogeneous dispersion are dissolved in the inorganic of liquid or organic solid particles, also can prevent the sedimentation of solid particle simultaneously and coagulate
Poly-, form stable suspension.In some embodiments that the present invention provides, dispersant is Morwet D-425, Morwet D-
500, SP-2836, TERSPERSE 2700, TERSPERSE 2425, DEHSCOFIX 920, sodium methylene bis-naphthalene sulfonate, methylene
A kind of or both above mixing in base double methyl naphthalene sulfonic acid sodium, sodium lignin sulfonate, calcium lignosulfonate, carboxymethyl cellulose
Compound.But dispersant is not limited to this, skilled person think feasible dispersant all protection scope of the present invention it
In, the present invention does not limits at this.
The effect of disintegrating agent is to speed up the disintegrate in water of the granule of water dispersible granules, its mechanism of action be mechanical rather than
Chemical.After disintegrating agent in its process usually granule and medicated powder are spontaneously wet out by water, disintegrating agent imbibition and make activity one-tenth
Divide and break down into a tiny material；Or water suction dissolves and produce localized pocket, these depressions make it be completely dispersed into after being replaced by water to make
The granule size of powder before grain.The important indicator weighing disintegrating agent disintegrating property is disintegration time, and different disintegrating agent kinds, it collapses
Solution performance is different.In general, along with the increase of disintegrating agent consumption, disintegration time shortens.Disintegrating agent be added to a certain amount of after, disintegrate
Time change is little, and suspensibility change is the most little.Therefore, the selection of disintegrating agent determines suitable disintegrate with substantial amounts of experiment
Agent.In some embodiments that the present invention provides, disintegrating agent is aluminium-magnesium silicate.But disintegrating agent is not limited to this, ability technology
Personnel think that feasible disintegrating agent is all within protection scope of the present invention.
Thickening agent is mainly used in improving and increasing the viscosity of pesticide.In some embodiments that the present invention provides, thickening
Agent is xanthan gum.But thickening agent is not limited to this, skilled person thinks that feasible thickening agent is all in the protection of the present invention
Within the scope of.
Antifreezing agent is a kind of material that can prevent moisture in material from freezing at low temperatures.Some provided in the present invention are implemented
In example, antifreezing agent is propylene glycol.But antifreezing agent is not limited to this, skilled person thinks that feasible antifreezing agent is all at this
Within bright protection domain.
Preservative Main Function is growth and the breeding of suppression microorganism, to extend the holding time of product.In the present invention
In some embodiments provided, preservative is sodium benzoate.But preservative is not limited to this, skilled person thinks feasible
Preservative all within protection scope of the present invention.
In some embodiments that the present invention provides, thixotropic agent is aluminium-magnesium silicate.But thixotropic agent is not limited to this, ability
Technical staff thinks that feasible thixotropic agent is all within protection scope of the present invention.
During preparation pesticidal preparations, it is necessary to select inert carrier, the carrier of chemical reaction does not i.e. occur with pesticide activity component.
The present invention provide some embodiments in, carrier be Kaolin, bentonite, potter's clay, kieselguhr, white carbon, precipitated calcium carbonate,
A kind of or both mixture above in sodium sulfate, ammonium sulfate.But carrier is not limited to this, skilled person thinks can
The carrier of row is all within protection scope of the present invention, and the present invention does not limits at this.
Emulsifying agent is the stabilizer of emulsion, is a class surfactant.The effect of emulsifying agent is: when it is dispersed in dispersion
During the surface of matter, forming thin film or electric double layer, dispersion phase can be made with electric charge, the droplet that thus can stop dispersion phase is mutual
Condensing, the emulsion making formation is more stable.A certain amount of emulsifying is added in the former medicine (solid-state) or crude oil (liquid) of pesticide
Agent, then dissolve them in organic solvent, can be made into cream after mix homogeneously.In some embodiments that the present invention provides,
Emulsifying agent is polyoxyethylene aliphatic alcohol ether.But emulsifying agent is not limited to this, skilled person thinks that feasible emulsifying agent is equal
Within protection scope of the present invention, the present invention does not limits at this.
In cream, active component need to dissolve in a solvent, and in some embodiments that the present invention provides, solvent is Ketohexamethylene.
But solvent is not limited to this, skilled person think feasible solvent all within protection scope of the present invention, the present invention
Do not limit at this.
Present invention also offers this Herbicidal combinations preparation application in eliminating weed in wheat field.
The invention provides a kind of Herbicidal combinations and preparation thereof.This Herbicidal combinations is by pinoxaden and isoproturon group
Become.Being tested by Toxicity Determination, result display pinoxaden and the mass ratio of isoproturon are 1:(1～60) co-toxicity coefficient
Be all higher than 120, show two active component compounding there is synergistic function, pinoxaden and isoproturon mass ratio be 1:(4～
25) co-toxicity coefficient reaches 135.67～244.56, has the matter of obvious potentiation, especially pinoxaden and isoproturon
Amount is more notable than the potentiation for 1:12.5；Found by field control effectiveness test, pinoxaden and the mass ratio of isoproturon
For 1:(1～60) ratio when being used in mixed way, each active component without cross tolerance, has notable synergistic effect, can effectively prevent and kill off
Grassy weed in wheat paddock and broad leaved weed.
Additionally, the Herbicidal combinations of present invention offer and preparation thereof are compounding as effectively becoming using pinoxaden and isoproturon
Point, the two is had complementary advantages, and delays the generation of herbicide resistance, and reduces the pollution to environment, improves drug effect, a drug simultaneously
Can effectively prevent and treat grassy weed and broad leaved weed, reduce the usage amount of pesticide and use kind, number of times, it is possible to extensively applying
In agriculture field.
In the Herbicidal combinations of present invention offer and preparation thereof, raw materials used medicine or adjuvant all can be buied by market.
Below in conjunction with embodiment, the present invention it is expanded on further:
Embodiment 1 Toxicity Determination is tested
Test soil is quantitatively filled at the 4/5 of basin alms bowl, uses top pouring, make soil complete wetting to saturated mode.Will
Examination weed seed (including Alopecurus and Herba stellariae mediae) that supplies of pretreatment is uniformly sowed at soil surface, earthing 0.5cm, after planting protects
Hold soil to be sufficiently humidified so as to, move into greenhouse cellar culture, carry out dispenser process to weeds length to the 2-3 leaf phase.Every 20 of weed seed
As a process, each process repeats for 4 times.Dispenser process particularly as follows: take pinoxaden and isoproturon, respectively with 1:1,1:4,
The ratio of 1:8.5,1:12.5,1:25,1:60 compounds, and the medicament after compounding is used for spraying of weeds blade face.
Co-toxicity coefficient method is used to evaluate the potentiation of the Wheat field weeding composition that the present invention provides.With drug concentration
(X) growth inhibited percent or fresh weight suppression percent (Y) of target weeds are sought regression equation with medicament by natural logrithm, and
Calculate the medicament EC to weeds50Value or EC90Value, then tries to achieve co-toxicity coefficient.Co-toxicity coefficient (CTC) >=120 shows as increasing
Effect effect；Co-toxicity coefficient (CTC)≤80 shows as antagonism；< 120 show as summation action to 80 < co-toxicity coefficient (CTC).System
The result of the test of meter different ratio medicament is shown in Table 1.Co-toxicity coefficient computing formula is as follows:
(EC mixes × P to co-toxicity coefficient (CTC)=100/A/ECA+ EC mixes × PB/ECB)
In formula: EC mixes the EC into mixture50Value (to Alopecurus and Herba stellariae mediae, lower same)；PAHave at mixture for pinoxaden
Shared part by weight in effect composition；PBFor part by weight shared in isoproturon effective ingredient；ECAEC for pinoxaden50Value；ECB
EC for isoproturon50Value.The EC of each group50Value and co-toxicity coefficient are shown in Table 1.
The synergy of weeds is measured by table 1 different ratio pinoxaden and isoproturon
| Process | Proportioning | EC50Value (g/L) | Co-toxicity coefficient |
| Pinoxaden | —— | 0.09 | —— |
| Isoproturon | —— | 1.56 | —— |
| Pinoxaden: isoproturon | 1:1 | 0.14 | 121.48 |
| Pinoxaden: isoproturon | 1:4 | 0.27 | 135.67 |
| Pinoxaden: isoproturon | 1:8.5 | 0.42 | 138.43 |
| Pinoxaden: isoproturon | 1:12.5 | 0.29 | 244.56 |
| Pinoxaden: isoproturon | 1:25 | 0.69 | 138.03 |
| Pinoxaden: isoproturon | 1:60 | 0.98 | 125.98 |
During from table 1 result, pinoxaden and isoproturon proportioning between (1:1)～(1:60), co-toxicity coefficient is the biggest
In 120, there is potentiation.Wherein, when proportioning is between (1:4)～(1:25), co-toxicity coefficient reaches 135.67～244.56,
There is obvious potentiation.The Herbicidal combinations that the result display present invention provides can effectively prevent and kill off Alopecurus and Herba stellariae mediae,
Show that the Herbicidal combinations that the present invention provides can effectively prevent and kill off grassy weed and broad leaved weed in wheat paddock.
Embodiment 2 10% pinoxaden isoproturon (1:4) wettable powder
Take pinoxaden 2%, isoproturon 8%, sodium lauryl sulphate 3%, alkylnaphthalene sulfonate 5%, fatty alcohol polyoxy
Vinyl Ether carboxylate 3%, NNO (sodium methylene bis-naphthalene sulfonate) 12%, white carbon 6%, precipitated calcium carbonate complement to 100%, mixed
Close uniformly, after comminution by gas stream, obtain 10% pyridine pinoxaden isoproturon wettable powder.
Embodiment 3 95% pinoxaden isoproturon (1:8.5) wettable powder
Take pinoxaden 10%, isoproturon 85%, sodium lauryl sulphate 0.5%, alkylnaphthalene sulfonate 1%, fatty alcohol
Polyethenoxy ether carboxylate 0.6%, NNO (sodium methylene bis-naphthalene sulfonate) 1%, white carbon 1%, precipitated calcium carbonate complement to
100%, mix homogeneously, after comminution by gas stream, obtain 95% pinoxaden isoproturon wettable powder.
Embodiment 4 40% pinoxaden isoproturon (1:1) water dispersible granules
Take pinoxaden 20%, isoproturon 20%, sodium lauryl sulphate 5%, aliphatic alcohol polyethenoxy ether carboxylate
9%, sodium lignin sulfonate 6%, aluminium-magnesium silicate 1%, white carbon 7%, precipitated calcium carbonate 32%, mix homogeneously, through comminution by gas stream
After wettable powder, add 20kg water mix homogeneously, extruder grain, dry, sieve, obtain 40% pyroxsulam isopropyl precititation
Dispersible granule.
Embodiment 5 52% pinoxaden isoproturon (1:25) water dispersible granules
Take pinoxaden 2%, isoproturon 50%, sodium lauryl sulphate 6%, aliphatic alcohol polyethenoxy ether carboxylate
12%, sodium lignin sulfonate 5%, aluminium-magnesium silicate 2%, white carbon 8%, precipitated calcium carbonate 15%, mix homogeneously, through comminution by gas stream
After wettable powder, add 24kg water mix homogeneously, extruder grain, dry, sieve, obtain 52% pyroxsulam isopropyl precititation
Dispersible granule.
Embodiment 6 61% pinoxaden isoproturon (1:60) suspending agent
Take pinoxaden 1%, isoproturon 60%, sodium lignin sulfonate 4%, dodecyl sodium sulfate 2%, aluminium-magnesium silicate
0.6%, xanthan gum 0.2%, propylene glycol 3%, sodium benzoate 0.2%, addition water is to 100%, and mixing, shearing uniformly, is ground to D
(90) less than 5 μm, 80% pyroxsulam isoproturon suspending agent is obtained.
Embodiment 7 54% pinoxaden isoproturon (1:12.5) cream
Take pinoxaden 4%, isoproturon 50%, polyoxyethylene aliphatic alcohol ether 10%, Ketohexamethylene complement to 100%, through filling
Divide mixed dissolution, obtain 54% pinoxaden isoproturon cream.
Embodiment 8 field control effectiveness test
The Wheat field weeding composition preparation that Example 2 to embodiment 7 prepares, as test group, carries out drug effect real
Test, with 5% pinoxaden cream as a control group 1,50% isoproturon wettable powder as a control group 2.
Testing and carry out in Anhui Tianzhang City winter wheat field, each group processes 4 times and repeats, and processing area is 20m2；
The insecticide-applying way of the medicine to be measured that test group, matched group 1, matched group 2 provide is stem and leaf spraying, and every mu of ground is watered 30kg.Note
Wheat paddock growing state after record dispenser, 30 days prevention effects after statistics dispenser.Test process, formulation rate and preventive effect the results are shown in Table 2.
Preventive effect computing formula is:
Strain preventive effect (%)=(check plot weeds strain number-treatment region weeds strain number)/weeds strain number × 100, check plot
Table 2 efficiency test
As seen from the results in Table 2, effective ingredient pinoxaden and isoproturon mixture, each Ingredient Amount and single use oxazoline grass
The consumption of ester or isoproturon compares minimizing, but the preventive effect of amur foxtail, Alopecurus, Herba stellariae mediae, Beckmannia syzigachne (Steud.) Fern is higher than single use azoles
Quinoline grass ester or the preventive effect of isoproturon, simultaneously careless also above single use oxazoline to the overall preventive effect of grassy weed and broad leaved weed
Ester or the overall preventive effect of isoproturon, show that in the Herbicidal combinations preparation that the present invention provides, two kinds of active component are without antagonism,
And improve preventive effect, decrease dosage and types of medicines, number of times.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a Herbicidal combinations, it is characterised in that be made up of pinoxaden and isoproturon；
Described pinoxaden is 1:(4～25 with the mass ratio of described isoproturon).
Herbicidal combinations the most according to claim 1, it is characterised in that described pinoxaden and the quality of described isoproturon
Ratio is 1:12.5.
3. the Herbicidal combinations as according to any one of claim 1 to 2 is preparing eliminating weed in wheat field Herbicidal combinations system
Application in agent.
4. a Herbicidal combinations preparation, it is characterised in that by the Herbicidal combinations as according to any one of claim 1 to 2
The acceptable adjuvant composition with in Pesticide Science.
Herbicidal combinations preparation the most according to claim 4, it is characterised in that described Herbicidal combinations accounts for described weeding group
The percentage by weight of compound preparation is 10%～95%.
Herbicidal combinations preparation the most according to claim 4, it is characterised in that the dosage form of described Herbicidal combinations preparation is
Wettable powder, water dispersible granules, suspending agent or cream.
7. the application in eliminating weed in wheat field of the Herbicidal combinations preparation as according to any one of claim 4 to 6.
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| CN105284846B (en) * | 2015-11-20 | 2018-03-27 | 陕西上格之路生物科学有限公司 | A kind of ternary weeding composition containing isoproturon |
| CN105475324B (en) * | 2016-01-05 | 2017-10-10 | 陕西上格之路生物科学有限公司 | A kind of ternary weeding composition containing isoproturon |
| CN106719753A (en) * | 2017-01-22 | 2017-05-31 | 江苏省苏科农化有限责任公司 | Wheat field weeding composition and its application |
| CN109221193A (en) * | 2018-10-15 | 2019-01-18 | 安徽圣丰生化有限公司 | A kind of herbicidal composition and preparation method thereof containing pinoxaden |
| CN109362748A (en) * | 2018-11-01 | 2019-02-22 | 安徽远景作物保护有限公司 | A kind of Herbicidal combinations and its application containing diflufenican |
| CN109874577A (en) * | 2019-04-18 | 2019-06-14 | 淮安市植保植检站 | Wheatland Wintering Period chemical weed control method |
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