CN104145975A - Weeding composition and preparation thereof - Google Patents
Weeding composition and preparation thereof Download PDFInfo
- Publication number
- CN104145975A CN104145975A CN201410414298.0A CN201410414298A CN104145975A CN 104145975 A CN104145975 A CN 104145975A CN 201410414298 A CN201410414298 A CN 201410414298A CN 104145975 A CN104145975 A CN 104145975A
- Authority
- CN
- China
- Prior art keywords
- isoproturon
- herbicidal combinations
- azoles quinoline
- grass ester
- quinoline grass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000000203 mixture Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- 238000009333 weeding Methods 0.000 title abstract description 7
- PUIYMUZLKQOUOZ-UHFFFAOYSA-N isoproturon Chemical compound CC(C)C1=CC=C(NC(=O)N(C)C)C=C1 PUIYMUZLKQOUOZ-UHFFFAOYSA-N 0.000 claims abstract description 80
- 241000196324 Embryophyta Species 0.000 claims abstract description 68
- 241000209140 Triticum Species 0.000 claims abstract description 28
- 235000021307 Triticum Nutrition 0.000 claims abstract description 28
- 239000000575 pesticide Substances 0.000 claims abstract description 10
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 162
- 244000025254 Cannabis sativa Species 0.000 claims description 88
- 150000002148 esters Chemical class 0.000 claims description 80
- 150000003851 azoles Chemical class 0.000 claims description 79
- 230000002363 herbicidal effect Effects 0.000 claims description 73
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- 239000000843 powder Substances 0.000 claims description 14
- 238000009736 wetting Methods 0.000 claims description 13
- 238000009472 formulation Methods 0.000 claims description 9
- 239000004562 water dispersible granule Substances 0.000 claims description 9
- 239000000375 suspending agent Substances 0.000 claims description 7
- 230000002195 synergetic effect Effects 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 12
- 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 abstract description 3
- 239000005597 Pinoxaden Substances 0.000 abstract description 2
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- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical group CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 2
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- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical group [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 2
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- JZRWCGZRTZMZEH-UHFFFAOYSA-N Thiamine Natural products CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 description 1
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- 235000012211 aluminium silicate Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
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- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 1
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- KSCFJBIXMNOVSH-UHFFFAOYSA-N dyphylline Chemical group O=C1N(C)C(=O)N(C)C2=C1N(CC(O)CO)C=N2 KSCFJBIXMNOVSH-UHFFFAOYSA-N 0.000 description 1
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the field of pesticide preparation, and especially relates to a weeding composition and a preparation thereof. The weeding composition is composed of pinoxaden and isoproturon. The provided weeding composition has a synergetic effect, can effectively prevent and remove graminaceous weeds and broad-leaved weeds in wheat field, delays the generation of pesticide resistant performance of weeds, and reduces the environmental pollution. At the same time the effect of the weed composition is improved, the e graminaceous weeds and broad-leaved weeds can be effectively prevented and treated by one application of the weeding composition, and thus the application amount, application species, and application times of pesticide are all reduced.
Description
Technical field
The present invention relates to pesticidal preparations field, particularly a kind of Herbicidal combinations and preparation thereof.
Background technology
Wheat is one of staple food crop of northern China, be rich in starch, protein, fat, mineral matter, calcium, iron, thiamine, vitamin b3, nicotinic acid and vitamin A etc., the cereal crops of gross yield second in the world, more than 3,000 ten thousand hectares of the long-term cultivated areas of China, are only second to Monitoring of Paddy Rice Plant Area.
The most of wheat paddock of China always has crop smothering in various degree to occur, and crop smothering area accounts for the more than 55% of wheat planting area, and wherein serious harm area accounts for 28%, and lost units accounts for 15% of wheat gross yield.Therefore, the usage ratio of domestic wheat paddock weed killer herbicide almost reaches 100%.
Azoles quinoline grass ester (PINOXADEN), is for No. CAS 243973-20-8, and molecular formula is C
23h
32n
2o
4, molecular weight is 400.516, it belongs to neophyl pyrazolines weed killer herbicide, the mechanism of action is acetyl-CoA carboxylase (ACC) inhibitor, causes fatty acid biosynthesis block, and cell division is stopped, cell membrane is destructurized containing fat, causes weeds death; Have interior suction conductivity, be mainly used in barley field and prevent and kill off annual gramineous weed, through toxicity test and field control effectiveness test, result shows that barley field annual gramineous weed is had to good preventive effect as wild oat, green foxtail, barnyard grass etc.Azoles quinoline grass ester weed killer herbicide is also the weed killer herbicide that wheat paddock is conventional, belongs to grass family foliar herbicide after seedling.Effective especially to pernicious grassy weed, mix with certain proportion with safener, for cereal crop, to grassy weed as Alopecurus, Salvia japonica, amur foxtail, wild oat, perennial ryegrass, annual bluegrass, green foxtail, deceive grass etc. and have excellent preventive effect.
But weeds of wheat is taking grassy weed and broad leaved weed as main weeds, and azoles quinoline grass ester is mainly to grassy weed preventive effect excellence, to the broad leaved weed preventive effect extreme difference taking chickweed as Typical Representative, makes its overall preventive effect lower.In order to protect in all directions wheat to avoid weeds harm, need to use multiple weed killer herbicide, so just increase the risk of antagonism between each weed killer herbicide, and increased dosage, increase cost, the safety of harm environment and succession crop.Therefore, providing a kind of all has the wheat paddock weed killer herbicide of remarkable preventive effect to have important practical significance to grassy weed and broad leaved weed.
Summary of the invention
In view of this, the invention provides a kind of Herbicidal combinations and preparation thereof.In this Herbicidal combinations, azoles quinoline grass ester and isoproturon are composite has a synergistic function, can effectively prevent and kill off grassy weed and broad leaved weed in wheat paddock, delay the generation of herbicide resistance, and the pollution of minimizing to environment, improve drug effect simultaneously, a drug can effectively be prevented and treated grassy weed and broad leaved weed, has reduced the usage amount of agricultural chemicals and has used kind, number of times.
In order to realize foregoing invention object, the invention provides following technical scheme:
The invention provides a kind of Herbicidal combinations, formed by azoles quinoline grass ester and isoproturon.
Azoles quinoline grass ester is acetyl-CoA carboxylase inhibitor class weed killer herbicide, and medicine can be absorbed by grass cutting blade, then conducts to meristematic tissue, and the lipid that suppresses somatoblast is synthetic, causes weeds death.After general dispenser, 48 hours susceptible weeds stop growing, and in 1～2 week, grass cutting blade starts jaundice, and in 3～4 weeks, weeds are thoroughly dead.This medicine can be prevented and kill off multiple grassy weed in the processing of wheat growth stage cauline leaf, can effectively prevent and kill off Annual Ryegrass, wild oat, green foxtail, amur foxtail, Alopecurus, hard grass, deceive the grassy weeds such as careless, caput is careless.The reaction velocity that after dispenser, weeds are injured is relevant with weather conditions, weeds kind, growth conditions etc.Azoles quinoline grass ester is fast in degraded in soil, seldom by root absorption, only has very low soil activation, on succession crop without impact.Resistance of rainwater washing against, within after dispenser 1 hour, meeting rain does not affect herbicidal effect substantially.
Isoproturon is substituted urea class selective herbicide.After medicament is absorbed by plant root, teach and be accumulated in blade, inhibited photosynthesis, causes weeds death.Can be used for preventing and kill off wheat paddock annual weed, as annual gramineous weed and broad leaved weeds such as lady's-grass, amur foxtail, Alopecurus, annual bluegrass, hard grass, grass, wild oat, Hairy Bittercress, tongue of sparrow grass, lamb's-quarters, cyclophanes threads.This medicament to 2～2.5 leaf phases, all can be used before tillering stage before crop is broadcast rear seedling and after seedling before weeds bud, and application method adopts spraying or applies pesticide-clay mixture.Overwintering crop can be in autumn after planting or medication after turning green spring, after medication, meet rain or pour water, can improve herbicidal effect.
In different Herbicidal combinations, each active component, due to the difference of composition, structure, physicochemical property, makes the synergy between each active component be typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and the effect of its generation is greater than the sum total of each composition effect; And the effect that summation action is exactly its generation equals the sum total of each composition effect; Antagonism refers to that when two kinds of materials act on living organism, a kind of material disturbs the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is declined.
The present invention, according to Sun Yunpei (Sun Y-P) method, calculates co-toxicity coefficient, evaluates azoles quinoline grass ester and two kinds of mixed interactions of different activities component of isoproturon in Herbicidal combinations preparation of the present invention.Result shows, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60) co-toxicity coefficient be all greater than 120.Find by field control effectiveness test, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60) ratio mix while use, each active component, without cross tolerance, has notable synergistic effect, can effectively prevent and kill off grassy weed and broad leaved weed in wheat paddock.
As preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60).
Preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25).
More preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5.
The present invention also provides this Herbicidal combinations in the application of preparing in eliminating weed in wheat field Herbicidal combinations preparation; This Herbicidal combinations is made up of azoles quinoline grass ester and isoproturon; As preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60); Preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25); More preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5.
The present invention also provides a kind of Herbicidal combinations preparation, is made up of acceptable auxiliary material in Herbicidal combinations provided by the invention and Pesticide Science; This Herbicidal combinations is made up of azoles quinoline grass ester and isoproturon; As preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60); Preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25); More preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5.
In embodiment more provided by the invention, the percentage by weight that Herbicidal combinations accounts for Herbicidal combinations preparation is 10%～95%.
In embodiment more provided by the invention, the formulation of Herbicidal combinations preparation is wetting powder, water dispersible granules, suspending agent or missible oil.
The present invention also provides this application of Herbicidal combinations preparation in eliminating weed in wheat field.
The invention provides a kind of Herbicidal combinations and preparation thereof.This Herbicidal combinations is made up of azoles quinoline grass ester and isoproturon.Test by Toxicity Determination, result shows that the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60) co-toxicity coefficient be all greater than 120, showing that two active components are composite has a synergistic function, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25) co-toxicity coefficient reach 135.67～244.56, have obvious synergistic effect, the synergistic effect that especially mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5 is more remarkable; Find by field control effectiveness test, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60) ratio mix while use, each active component, without cross tolerance, has notable synergistic effect, can effectively prevent and kill off grassy weed and broad leaved weed in wheat paddock.
In addition, Herbicidal combinations provided by the invention and preparation thereof are composite as active ingredient using azoles quinoline grass ester and isoproturon, the two mutual supplement with each other's advantages, delay the generation of herbicide resistance, and reduce the pollution to environment, and improving drug effect simultaneously, a drug can effectively be prevented and treated grassy weed and broad leaved weed, reduce the usage amount of agricultural chemicals and used kind, number of times, can be widely used in agriculture field.
Embodiment
The invention discloses a kind of Herbicidal combinations and preparation thereof, those skilled in the art can use for reference content herein, suitably improve technological parameter and realize.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the artly, they are all deemed to be included in the present invention.Method of the present invention and application are described by preferred embodiment, related personnel obviously can change methods and applications as herein described in content of the present invention, spirit and scope or suitably change and combination not departing from, and realizes and apply the technology of the present invention.
The invention provides a kind of Herbicidal combinations, formed by azoles quinoline grass ester and isoproturon.
In order to ensure that co-toxicity coefficient is greater than 120, make two kinds of active components produce synergistic functions, as preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60).
Preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25).
More preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5.
The present invention also provides this Herbicidal combinations in the application of preparing in eliminating weed in wheat field Herbicidal combinations preparation; This Herbicidal combinations is made up of azoles quinoline grass ester and isoproturon; As preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60); Preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25); More preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5.
The present invention also provides a kind of Herbicidal combinations preparation, is made up of acceptable auxiliary material in Herbicidal combinations provided by the invention and Pesticide Science; This Herbicidal combinations is made up of azoles quinoline grass ester and isoproturon; As preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60); Preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25); More preferably, the mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5.
In order effectively to prevent and kill off the weeds in wheat paddock, in embodiment more provided by the invention, the percentage by weight that Herbicidal combinations accounts for Herbicidal combinations preparation is 10%～95%.
Herbicidal combinations preparation provided by the invention can be by selecting corresponding carrier, surfactant, dispersant or other agricultural agents to make various formulations.In embodiment more provided by the invention, the formulation of Herbicidal combinations preparation is wetting powder, water dispersible granules, suspending agent or missible oil.
In embodiment more provided by the invention, in Pesticide Science, acceptable auxiliary material is selected from a kind of or both the above mixtures in wetting agent, dispersant, disintegrant, thickener, antifreezing agent, preservative, thixotropic agent or carrier.But acceptable auxiliary material is not defined in this in Pesticide Science, ability technical staff thinks that acceptable auxiliary material is all within protection scope of the present invention in feasible Pesticide Science, and the present invention does not limit at this.
In embodiment more provided by the invention, Herbicidal combinations preparation is wetting powder.As preferably, in this wetting powder formulation, contain active component 10-95%, wetting agent 1-10%, dispersant 1-10%, carrier complements to 100%.
In other embodiment provided by the invention, Herbicidal combinations preparation is water dispersible granules.As preferably, in this water-dispersible grain formulation, contain active component 10-95%, wetting agent 1-6%, dispersant 1-8%, disintegrant 1-20%, carrier complements to 100%.
In other embodiment provided by the invention, Herbicidal combinations preparation is suspending agent.As preferably, in this suspending agent formulation, contain active component 10-95%, dispersant 1-6%, wetting agent 1-4%, thickener 0.1-2.0%, antifreezing agent 1-6%, preservative 0.1-2%, thixotropic agent 0.1-5%, water complements to 100%.
In other embodiment provided by the invention, Herbicidal combinations preparation is missible oil.As preferably, in this missible oil formulation, contain active component 10-95%, emulsifier 1-30%, solvent complements to 100%.
Wetting agent is one of insecticides adjuvant, can make material water insoluble or that be not soaked in water for water-moistened solid pesticide, its Main Function is surface tension or the interfacial tension that reduces water, solid surface energy is soaked by water, it is made into suspension and uses after can making water-fast agricultural chemicals be watered, and can make liquid moistening and expansion on crop plant, thus improve control efficiency, reduce the generation of poisoning.In embodiment more provided by the invention, wetting agent is TERWET 1004, SP-2845W, Morwet EFW, EMPICOL LX/B, pull open a kind of or both the above mixtures in powder, lauryl sodium sulfate, dodecyl sodium naphthalene sulfonate, neopelex, calcium dodecyl benzene sulfonate.But wetting agent is not defined in this, ability technical staff thinks that feasible wetting agent is all within protection scope of the present invention, and the present invention does not limit at this.
Dispersant is a kind of interfacial agent simultaneously in molecule with lipophile and two kinds of opposite nature of hydrophily, can disperse those difficulties to be dissolved in the inorganic of liquid or organic solid particle by homogeneous, also can prevent sedimentation and the cohesion of solid particle, form stable suspension simultaneously.In embodiment more provided by the invention, dispersant is a kind of or both the above mixtures in Morwet D-425, Morwet D-500, SP-2836, TERSPERSE 2700, TERSPERSE 2425, DEHSCOFIX 920, sodium methylene bis-naphthalene sulfonate, dispersing agent MF, sodium lignin sulfonate, calcium lignosulfonate, carboxymethyl cellulose.But dispersant is not defined in this, ability technical staff thinks that feasible dispersant is all within protection scope of the present invention, and the present invention does not limit at this.
The effect of disintegrant is to accelerate particle disintegration in water of water dispersible granules, and its mechanism of action is mechanical and property non-chemically.Its process be generally disintegrant in particle and medicinal powder by water-wet after, disintegrant imbibition and make active component break down into a tiny material; Or water suction dissolves and produce localized pocket, these depressions make it be dispersed into the granule size of pulvis before granulation completely after being replaced by water.The important indicator of weighing disintegrant disintegrating property is disintegration time, different disintegrant kinds, its disintegrating property difference.In general, along with the increase of disintegrant consumption, disintegration time shortens.Disintegrant be added to a certain amount of after, disintegration time changes little, suspensibility changes also little.Therefore, selecting of disintegrant determined suitable disintegrant with a large amount of experiments.In embodiment more provided by the invention, disintegrant is aluminium-magnesium silicate.But disintegrant is not defined in this, ability technical staff thinks that feasible disintegrant is all within protection scope of the present invention.
Thickener is mainly used in improving and increasing the viscosity of agricultural chemicals.In embodiment more provided by the invention, thickener is xanthans.But thickener is not defined in this, ability technical staff thinks that feasible thickener is all within protection scope of the present invention.
Antifreezing agent is a kind ofly can prevent at low temperatures the icing material of moisture in material.In embodiment more provided by the invention, antifreezing agent is propane diols.But antifreezing agent is not defined in this, ability technical staff thinks that feasible antifreezing agent is all within protection scope of the present invention.
Preservative Main Function is to suppress microbial growth and breeding, to extend the holding time of product.In embodiment more provided by the invention, preservative is Sodium Benzoate.But preservative is not defined in this, ability technical staff thinks that feasible preservative is all within protection scope of the present invention.
In embodiment more provided by the invention, thixotropic agent is aluminium-magnesium silicate.But thixotropic agent is not defined in this, ability technical staff thinks that feasible thixotropic agent is all within protection scope of the present invention.
When preparation pesticidal preparations, must select inert carrier, the carrier of chemical reaction does not occur with pesticide activity component.In embodiment more provided by the invention, carrier is a kind of or both the above mixtures in kaolin, bentonite, potter's clay, diatomite, white carbon, precipitated calcium carbonate, sodium sulphate, ammonium sulfate.But carrier is not defined in this, ability technical staff thinks that feasible carrier is all within protection scope of the present invention, and the present invention does not limit at this.
Emulsifier is the stabilizing agent of emulsion, is a class surfactant.The effect of emulsifier is: in the time that it is dispersed in dispersate surperficial, form film or electric double layer, can make disperse phase with electric charge, so just can stop the droplet of disperse phase to condense mutually, make the emulsion of formation more stable.In the former medicine (solid-state) of agricultural chemicals or crude oil (liquid state), add a certain amount of emulsifier, then they are dissolved in organic solvent, after mixing, can be made into missible oil.In embodiment more provided by the invention, emulsifier is polyoxyethylene aliphatic alcohol ether.But emulsifier is not defined in this, ability technical staff thinks that feasible emulsifier is all within protection scope of the present invention, and the present invention does not limit at this.
In missible oil, active component need be dissolved in solvent, and in embodiment more provided by the invention, solvent is cyclohexanone.But solvent is not defined in this, ability technical staff thinks that feasible solvent is all within protection scope of the present invention, and the present invention does not limit at this.
The present invention also provides this application of Herbicidal combinations preparation in eliminating weed in wheat field.
The invention provides a kind of Herbicidal combinations and preparation thereof.This Herbicidal combinations is made up of azoles quinoline grass ester and isoproturon.Test by Toxicity Determination, result shows that the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60) co-toxicity coefficient be all greater than 120, showing that two active components are composite has a synergistic function, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(4～25) co-toxicity coefficient reach 135.67～244.56, have obvious synergistic effect, the synergistic effect that especially mass ratio of azoles quinoline grass ester and isoproturon is 1:12.5 is more remarkable; Find by field control effectiveness test, the mass ratio of azoles quinoline grass ester and isoproturon is 1:(1～60) ratio mix while use, each active component, without cross tolerance, has notable synergistic effect, can effectively prevent and kill off grassy weed and broad leaved weed in wheat paddock.
In addition, Herbicidal combinations provided by the invention and preparation thereof are composite as active ingredient using azoles quinoline grass ester and isoproturon, the two mutual supplement with each other's advantages, delay the generation of herbicide resistance, and reduce the pollution to environment, and improving drug effect simultaneously, a drug can effectively be prevented and treated grassy weed and broad leaved weed, reduce the usage amount of agricultural chemicals and used kind, number of times, can be widely used in agriculture field.
In Herbicidal combinations provided by the invention and preparation thereof, raw materials used medicine or auxiliary material all can be buied by market.
Below in conjunction with embodiment, further set forth the present invention:
Embodiment 1 Toxicity Determination test
Test soil is quantitatively filled to 4/5 place of basin alms bowl, adopts top pouring, make soil complete wetting to saturated mode.Evenly be sowed at soil surface by pretreated for examination weed seed (comprising Alopecurus and chickweed), earthing 0.5cm, after planting keeps soil fully moistening, moves into greenhouse cellar culture, grows to the 2-3 leaf phase carry out dispenser processing to weeds.Weed seed every 20 as a processing, each processing 4 times repeats.Dispenser processing is specially: get azoles quinoline grass ester and isoproturon, and composite with the ratio of 1:1,1:4,1:8.5,1:12.5,1:25,1:60 respectively, the spraying for weeds blade face by the medicament after composite.
Adopt co-toxicity coefficient method to evaluate the synergistic effect of Wheat field weeding composition provided by the invention.Natural logrithm and growth inhibition percentage or the fresh weight inhibition percentage (Y) of medicament to target weeds with drug concentration (X) are asked regression equation, and calculate the EC of medicament to weeds
50value or EC
90value, then tries to achieve co-toxicity coefficient.Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80< co-toxicity coefficient (CTC) <120 shows as summation action.Add up the result of the test of different proportioning medicaments in table 1.Co-toxicity coefficient computing formula is as follows:
Co-toxicity coefficient (CTC)=100/ (mix × P of EC
a/ EC
amix × P of+EC
b/ EC
b)
In formula: EC mixes the EC into mixture
50value (to Alopecurus and chickweed, lower same); P
afor azoles quinoline grass ester shared part by weight in mixture active ingredient; P
bfor shared part by weight in isoproturon active ingredient; EC
afor the EC of azoles quinoline grass ester
50value; EC
bfor the EC of isoproturon
50value.The EC of each group
50value and co-toxicity coefficient are in table 1.
The different proportioning azoles of table 1 quinoline grass ester and isoproturon are measured the synergy of weeds
| Process | Proportioning | EC 50Value (g/L) | Co-toxicity coefficient |
| Azoles quinoline grass ester | —— | 0.09 | —— |
| Isoproturon | —— | 1.56 | —— |
| Azoles quinoline grass ester: isoproturon | 1:1 | 0.14 | 121.48 |
| Azoles quinoline grass ester: isoproturon | 1:4 | 0.27 | 135.67 |
| Azoles quinoline grass ester: isoproturon | 1:8.5 | 0.42 | 138.43 |
| Azoles quinoline grass ester: isoproturon | 1:12.5 | 0.29 | 244.56 |
| Azoles quinoline grass ester: isoproturon | 1:25 | 0.69 | 138.03 |
| Azoles quinoline grass ester: isoproturon | 1:60 | 0.98 | 125.98 |
From table 1 result, azoles quinoline grass ester and isoproturon proportioning are between (1:1)～(1:60) time, and co-toxicity coefficient is all greater than 120, has synergistic effect.Wherein, proportioning is between (1:4)～(1:25) time, and co-toxicity coefficient reaches 135.67～244.56, has obvious synergistic effect.Result shows that Herbicidal combinations provided by the invention can effectively prevent and kill off Alopecurus and chickweed, shows that Herbicidal combinations provided by the invention can effectively prevent and kill off grassy weed and broad leaved weed in wheat paddock.
Embodiment 2 10% azoles quinoline grass ester isoproturon (1:4) wetting powders
Get azoles quinoline grass ester 2%, isoproturon 8%, lauryl sodium sulfate 3%, alkylnaphthalene sulfonate 5%, aliphatic alcohol polyethenoxy ether carboxylate 3%, NNO (sodium methylene bis-naphthalene sulfonate) 12%, white carbon 6%, precipitated calcium carbonate and complement to 100%, mix, after air-flow crushing, obtain 10% pyridine azoles quinoline grass ester isoproturon wetting powder.
Embodiment 3 95% azoles quinoline grass ester isoproturon (1:8.5) wetting powders
Get azoles quinoline grass ester 10%, isoproturon 85%, lauryl sodium sulfate 0.5%, alkylnaphthalene sulfonate 1%, aliphatic alcohol polyethenoxy ether carboxylate 0.6%, NNO (sodium methylene bis-naphthalene sulfonate) 1%, white carbon 1%, precipitated calcium carbonate and complement to 100%, mix, after air-flow crushing, obtain 95% azoles quinoline grass ester isoproturon wetting powder.
Embodiment 4 40% azoles quinoline grass ester isoproturon (1:1) water dispersible granules
Get azoles quinoline grass ester 20%, isoproturon 20%, lauryl sodium sulfate 5%, aliphatic alcohol polyethenoxy ether carboxylate 9%, sodium lignin sulfonate 6%, aluminium-magnesium silicate 1%, white carbon 7%, precipitated calcium carbonate 32%, mix, after air-flow crushing, obtain wetting powder, adding 20kg water mixes, extruder grain, oven dry, screening, obtain 40% pyridine sulphur grass amine isoproturon water dispersible granules.
Embodiment 5 52% azoles quinoline grass ester isoproturon (1:25) water dispersible granules
Get azoles quinoline grass ester 2%, isoproturon 50%, lauryl sodium sulfate 6%, aliphatic alcohol polyethenoxy ether carboxylate 12%, sodium lignin sulfonate 5%, aluminium-magnesium silicate 2%, white carbon 8%, precipitated calcium carbonate 15%, mix, after air-flow crushing, obtain wetting powder, adding 24kg water mixes, extruder grain, oven dry, screening, obtain 52% pyridine sulphur grass amine isoproturon water dispersible granules.
Embodiment 6 61% azoles quinoline grass ester isoproturon (1:60) suspending agents
Get azoles quinoline grass ester 1%, isoproturon 60%, sodium lignin sulfonate 4%, dodecyl sodium sulfate 2%, aluminium-magnesium silicate 0.6%, xanthans 0.2%, propane diols 3%, Sodium Benzoate 0.2%, add water to 100%, mix, shear evenly, be ground to D (90) and be less than 5 μ m, obtain 80% pyridine sulphur grass amine isoproturon suspending agent.
Embodiment 7 54% azoles quinoline grass ester isoproturon (1:12.5) missible oil
Get azoles quinoline grass ester 4%, isoproturon 50%, polyoxyethylene aliphatic alcohol ether 10%, cyclohexanone and complement to 100%, through abundant mixed dissolution, obtain 54% azoles quinoline grass ester isoproturon missible oil.
Embodiment 8 field control effectiveness tests
Get Wheat field weeding composition preparation that embodiment 2 to embodiment 7 prepares as experimental group, carry out effect experiment, with 5% azoles quinoline grass emulsifiable concentrate, 1,50% isoproturon wetting powder as a control group 2 as a control group.
Test in Anhui Tianzhang City winter wheat field and carry out, each group is processed 4 times and is repeated, and processing area is 20m
2; The insecticide-applying way of the medicine to be measured that experimental group, control group 1, control group 2 provide is cauline leaf spraying, and every mu of ground is watered 30kg.Record wheat paddock growing state after dispenser, 30 days control efficiency after statistics dispenser.Test processing, 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, active ingredient azoles quinoline grass ester and isoproturon mixture, minimizing compared with the consumption of each composition consumption and single use azoles quinoline grass ester or isoproturon, but to amur foxtail, Alopecurus, chickweed, deceive the preventive effect of careless preventive effect higher than single use azoles quinoline grass ester or isoproturon, simultaneously to the overall preventive effect of grassy weed and broad leaved weed also higher than the overall preventive effect of single use azoles quinoline grass ester or isoproturon, show in Herbicidal combinations preparation provided by the invention that two kinds of active components are without antagonism, and improve preventive effect, dosage and types of medicines are reduced, number of times.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a Herbicidal combinations, is characterized in that, is made up of azoles quinoline grass ester and isoproturon.
2. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described azoles quinoline grass ester and described isoproturon is 1:(1～60).
3. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described azoles quinoline grass ester and described isoproturon is 1:(4～25).
4. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described azoles quinoline grass ester and described isoproturon is 1:12.5.
5. the Herbicidal combinations as described in any one in claim 1 to 4 is in the application of preparing in eliminating weed in wheat field Herbicidal combinations preparation.
6. a Herbicidal combinations preparation, is characterized in that, is made up of acceptable auxiliary material in the Herbicidal combinations as described in any one in claim 1 to 4 and Pesticide Science.
7. Herbicidal combinations preparation according to claim 6, is characterized in that, the percentage by weight that described Herbicidal combinations accounts for described Herbicidal combinations preparation is 10%～95%.
8. Herbicidal combinations preparation according to claim 6, is characterized in that, the formulation of described Herbicidal combinations preparation is wetting powder, water dispersible granules, suspending agent or missible oil.
9. the application of the Herbicidal combinations preparation as described in any one in claim 6 to 8 in eliminating weed in wheat field.
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| CN105284846A (en) * | 2015-11-20 | 2016-02-03 | 陕西上格之路生物科学有限公司 | Ternary herbicidal composition containing isoproturon |
| CN105475324A (en) * | 2016-01-05 | 2016-04-13 | 陕西上格之路生物科学有限公司 | 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 |
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| 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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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105284846A (en) * | 2015-11-20 | 2016-02-03 | 陕西上格之路生物科学有限公司 | Ternary herbicidal composition containing isoproturon |
| 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 |
| CN105475324A (en) * | 2016-01-05 | 2016-04-13 | 陕西上格之路生物科学有限公司 | 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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