CN104186513A - Herbicidal composition and preparation thereof - Google Patents
Herbicidal composition and preparation thereof Download PDFInfo
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- CN104186513A CN104186513A CN201410414353.6A CN201410414353A CN104186513A CN 104186513 A CN104186513 A CN 104186513A CN 201410414353 A CN201410414353 A CN 201410414353A CN 104186513 A CN104186513 A CN 104186513A
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- isoproturon
- herbicidal combinations
- grass amine
- sulphur grass
- pyridine sulphur
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Abstract
The invention relates to the field of a pesticide preparation, and in particular relates to an herbicidal composition and a preparation thereof. The herbicidal composition is composed of pyroxsulam and isoproturon. The herbicidal composition disclosed by the invention has a synergistic effect, and can be used for effectively preventing and removing gramineous weeds and broadleaf weeds in a wheat field, delaying disease resistance of the weeds and relieving pollution to environment; meanwhile, a pesticide effect is improved, gramineous weeds and broadleaf weeds are effectively prevented and controlled by one-time application of the herbicidal composition, and thus the usage amount, types and frequency of pesticides are 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%.
Pyridine sulphur grass amine, and chemical name: N-(5,7-dimethoxy [1,2,4] triazole [1,5-a1 pyrimidine-2-base)-2-methoxyl group-4-(trifluoromethyl)-3-pyridine sulfonamide, belong to sulfonamides herbicide, broad weed-killing spectrum, activity of weeding is high, and drug action is fast.Its mechanism of action is inner sucting conduction type, via grass cutting blade, sheath portion, stem or root absorption, at growing point, accumulates, suppress acetolactate synthestase, cannot synthesize branched-chain amino acid, and then it is synthetic to affect protein, affect weeds cell division, cause that weeds stop growing, yellow, death.Pyridine sulphur grass amine is the weed killer herbicide that wheat paddock is conventional, belong to grass family and broad leaved weed foliar herbicide after seedling, effective especially to pernicious grassy weed, mix with certain proportion with safener, for cereal crop, grassy weed is had to excellent preventive effect as Alopecurus, Salvia japonica, amur foxtail, wild oat, perennial ryegrass, annual bluegrass, green foxtail etc.
Yet it is main weeds that weeds of wheat be take grassy weed and broad leaved weed, and pyridine sulphur grass amine is mainly excellent to grassy weed preventive effect, to take the broad leaved weed preventive effect extreme difference that chickweed is 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, increased 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, pyridine sulphur grass amine 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, by pyridine sulphur grass amine and isoproturon, formed.
Pyridine sulphur grass amine, belongs to sulfonamides inner sucting conduction type, selectivity winter wheat field herbicide after seedling, and broad weed-killing spectrum, activity of weeding is high, drug action is fast.Its mechanism of action is the inhibitor of acetolactate synthestase (ALS), via grass cutting blade, sheath portion, stem or root absorption, at growing point, accumulate, suppress the synthetic of acetolactate synthestase, cause synthesizing branched-chain amino acid, and then it is synthetic to affect protein, affects weeds cell division, cause weeds to stop growing, then dead.The grassy weeds such as wheatland amur foxtail, Alopecurus, hard grass, bromegrass, wild oat can be effectively prevented and kill off, and the weeds such as annual bluegrass, clearvers, wartwort can be effectively suppressed.
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 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 pyridine sulphur grass amine 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 pyridine sulphur grass amine and isoproturon is 1:(1～50) co-toxicity coefficient be all greater than 120.By field control effectiveness test, find, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50) ratio mix while using, 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 pyridine sulphur grass amine and isoproturon is 1:(1～50).
Preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25).
More preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:15.
The present invention also provides the application of this Herbicidal combinations in preparing eliminating weed in wheat field Herbicidal combinations preparation; This Herbicidal combinations is comprised of pyridine sulphur grass amine and isoproturon; As preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50); Preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25); More preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:15.
The present invention also provides a kind of Herbicidal combinations preparation, acceptable auxiliary material in Herbicidal combinations provided by the invention and Pesticide Science, consists of; This Herbicidal combinations is comprised of pyridine sulphur grass amine and isoproturon; As preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50); Preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25); More preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:15.
In embodiment more provided by the invention, the percentage by weight that Herbicidal combinations accounts for Herbicidal combinations preparation is 10%～90%.
In embodiment more provided by the invention, the formulation of Herbicidal combinations preparation is wetting powder, water dispersible granules or suspending agent.
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 comprised of pyridine sulphur grass amine and isoproturon.By Toxicity Determination, test, result shows that the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50) co-toxicity coefficient be all greater than 120, showing that two active components are composite has a synergistic function, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25) co-toxicity coefficient reach 180.38～213.13, have obvious synergistic effect, the synergistic effect that especially mass ratio of pyridine sulphur grass amine and isoproturon is 1:15 is more remarkable; By field control effectiveness test, find, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50) ratio mix while using, 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 using pyridine sulphur grass amine and isoproturon composite as active ingredient, 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, reduced 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 or suitably change and combination within not departing from content of the present invention, spirit and scope, realizes and apply the technology of the present invention.
The invention provides a kind of Herbicidal combinations, by pyridine sulphur grass amine and isoproturon, formed.
In order to guarantee that co-toxicity coefficient is greater than 120, make two kinds of active components produce synergistic functions, as preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50).
Preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25).
More preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:15.
The present invention also provides the application of this Herbicidal combinations in preparing eliminating weed in wheat field Herbicidal combinations preparation; This Herbicidal combinations is comprised of pyridine sulphur grass amine and isoproturon; As preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50); Preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25); More preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:15.
The present invention also provides a kind of Herbicidal combinations preparation, acceptable auxiliary material in Herbicidal combinations provided by the invention and Pesticide Science, consists of; This Herbicidal combinations is comprised of pyridine sulphur grass amine and isoproturon; As preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50); Preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25); More preferably, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:15.
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%～90%.
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 or suspending agent.
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 10-90%, 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 10-90%, 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 10-70%, 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%.
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 particle disintegration in water of accelerating 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 dissolve to 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, and its disintegrating property is different.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 will be 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.
During 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.
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 comprised of pyridine sulphur grass amine and isoproturon.By Toxicity Determination, test, result shows that the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50) co-toxicity coefficient be all greater than 120, showing that two active components are composite has a synergistic function, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(8～25) co-toxicity coefficient reach 180.38～213.13, have obvious synergistic effect, the synergistic effect that especially mass ratio of pyridine sulphur grass amine and isoproturon is 1:15 is more remarkable; By field control effectiveness test, find, the mass ratio of pyridine sulphur grass amine and isoproturon is 1:(1～50) ratio mix while using, 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 using pyridine sulphur grass amine and isoproturon composite as active ingredient, 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, reduced 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.By pretreated, for examination weed seed (comprising Alopecurus and chickweed), be evenly sowed at soil surface, 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 is processed 4 times and repeats.Dispenser is processed and is specially: get pyridine sulphur grass amine and isoproturon, and composite with the ratio of 1:1,1:8,1:9,1:15,1:25,1:50 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 medicament with drug concentration (X) are asked regression equation to the growth inhibition percentage of target weeds or fresh weight inhibition percentage (Y), 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 pyridine sulphur grass amine shared part by weight in mixture active ingredient; P
bfor shared part by weight in isoproturon active ingredient; EC
aeC for pyridine sulphur grass amine
50value; EC
beC for isoproturon
50value.The EC of each group
50value and co-toxicity coefficient are in Table 1.
The different proportioning pyridine of table 1 sulphur grass amine and isoproturon are measured the synergy of weeds
| Process | Proportioning | EC 50Value (g/L) | Co-toxicity coefficient |
| Pyridine sulphur grass amine | —— | 0.15 | —— |
| Isoproturon | —— | 1.56 | —— |
| Pyridine sulphur grass amine: isoproturon | 1:1 | 0.22 | 124.53 |
| Pyridine sulphur grass amine: isoproturon | 1:8 | 0.36 | 212.04 |
| Pyridine sulphur grass amine: isoproturon | 1:9 | 0.42 | 190.48 |
| Pyridine sulphur grass amine: isoproturon | 1:15 | 0.46 | 213.13 |
| Pyridine sulphur grass amine: isoproturon | 1:25 | 0.63 | 180.38 |
| Pyridine sulphur grass amine: isoproturon | 1:50 | 1.12 | 122.31 |
From table 1 result, pyridine sulphur grass amine and isoproturon proportioning are between (1:1)～(1:50) time, and co-toxicity coefficient is all greater than 120, has synergistic effect.Wherein, proportioning is between (1:8)～(1:25) time, and co-toxicity coefficient reaches 180.38～213.13, 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% pyridine sulphur grass amine isoproturon (1:9) wetting powders
Get pyridine sulphur grass amine 1%, isoproturon 9%, 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 pyridine sulphur grass amine isoproturon wetting powder.
Embodiment 3 90% pyridine sulphur grass amine isoproturon (1:8) wetting powders
Get pyridine sulphur grass amine 10%, isoproturon 80%, lauryl sodium sulfate 2%, alkylnaphthalene sulfonate 2.5%, aliphatic alcohol polyethenoxy ether carboxylate 0.5%, NNO (sodium methylene bis-naphthalene sulfonate) 1%, white carbon 0.5%, precipitated calcium carbonate and complement to 100%, mix, after air-flow crushing, obtain 90% pyridine sulphur grass amine isoproturon wetting powder.
Embodiment 4 51% pyridine sulphur grass amine isoproturon (1:50) water dispersible granules
Get pyridine sulphur grass amine 1%, isoproturon 50%, lauryl sodium sulfate 5%, aliphatic alcohol polyethenoxy ether carboxylate 9%, sodium lignin sulfonate 6%, aluminium-magnesium silicate 1%, white carbon 7%, precipitated calcium carbonate 21%, mix, after air-flow crushing, obtain wetting powder, adding 20kg water mixes, extruder grain, oven dry, screening, obtain 51% pyridine sulphur grass amine isoproturon water dispersible granules.
Embodiment 5 52% pyridine sulphur grass amine isoproturon (1:25) water dispersible granules
Get pyridine sulphur grass amine 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 32% pyridine sulphur grass amine isoproturon (1:15) suspending agents
Get pyridine sulphur grass amine 2%, isoproturon 30%, sodium lignin sulfonate 4%, dodecyl sodium sulfate 2%, aluminium-magnesium silicate 0.7%, 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 32% pyridine sulphur grass amine isoproturon suspending agent.
Embodiment 7 20% pyridine sulphur grass amine isoproturon (1:1) suspending agents
Get pyridine sulphur grass amine 10%, isoproturon 10%, sodium lignin sulfonate 8%, dodecyl sodium sulfate 4%, aluminium-magnesium silicate 1.2%, xanthans 0.6%, propane diols 5%, Sodium Benzoate 0.5%, add water to 100%, mix, shear evenly, be ground to D (90) and be less than 5 μ m, obtain 20% pyridine sulphur grass amine isoproturon suspending agent.
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 75% pyridine sulphur grass amine water dispersible granules, 1,50% isoproturon wetting powder as a control group 2 as a control group.
Test in Tianzhang City, Anhui 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 pyridine sulphur grass amine and isoproturon are mixed, each composition consumption is compared minimizing with the consumption of single use pyridine sulphur grass amine or isoproturon, but to amur foxtail, Alopecurus, chickweed, deceive careless preventive effect higher than the preventive effect of single use pyridine sulphur grass amine 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 pyridine sulphur grass amine or isoproturon, show in Herbicidal combinations preparation provided by the invention that two kinds of active components are without antagonism, and improved preventive effect, dosage and types of medicines have been 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, pyridine sulphur grass amine and isoproturon, consists of.
2. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described pyridine sulphur grass amine and described isoproturon is 1:(1～50).
3. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described pyridine sulphur grass amine and described isoproturon is 1:(8～25).
4. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described pyridine sulphur grass amine and described isoproturon is 1:15.
5. the application of the Herbicidal combinations as described in any one in claim 1 to 4 in preparing eliminating weed in wheat field Herbicidal combinations preparation.
6. a Herbicidal combinations preparation, is characterized in that, in the Herbicidal combinations as described in any one in claim 1 to 4 and Pesticide Science, acceptable auxiliary material forms.
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%～90%.
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 or suspending agent.
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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Cited By (5)
| 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 |
| US20170223961A1 (en) * | 2014-07-30 | 2017-08-10 | Fmc Química Do Brasil Ltda | Herbicidal formulation with double action mechanism for controlling weeds, method for controlling undesirable weeds and method for increasing harvest yield |
| CN110250191A (en) * | 2019-07-05 | 2019-09-20 | 南京农业大学 | The chemical control technology and its application of the anti-fenoxapropPethyl Alopecurus of one group of winter wheat field |
| CN112772667A (en) * | 2021-02-04 | 2021-05-11 | 安徽润农腾辉生物科技有限公司 | Weeding composition containing pyroxsulam, isoproturon and florasulam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170223961A1 (en) * | 2014-07-30 | 2017-08-10 | Fmc Química Do Brasil Ltda | Herbicidal formulation with double action mechanism for controlling weeds, method for controlling undesirable weeds and method for increasing harvest yield |
| 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 |
| CN110250191A (en) * | 2019-07-05 | 2019-09-20 | 南京农业大学 | The chemical control technology and its application of the anti-fenoxapropPethyl Alopecurus of one group of winter wheat field |
| CN112772667A (en) * | 2021-02-04 | 2021-05-11 | 安徽润农腾辉生物科技有限公司 | Weeding composition containing pyroxsulam, isoproturon and florasulam |
| CN113729026A (en) * | 2021-10-09 | 2021-12-03 | 合肥巨卓农业技术开发有限公司 | Compound herbicide containing pyroxsulam and isoproturon |
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