CN103027051B - Microcapsule suspending-suspending agent containing pendimethalin - Google Patents
Microcapsule suspending-suspending agent containing pendimethalin Download PDFInfo
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- CN103027051B CN103027051B CN201210257668.5A CN201210257668A CN103027051B CN 103027051 B CN103027051 B CN 103027051B CN 201210257668 A CN201210257668 A CN 201210257668A CN 103027051 B CN103027051 B CN 103027051B
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- pendimethalin
- suspending agent
- active component
- weight content
- microcapsule suspension
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- 239000005591 Pendimethalin Substances 0.000 title claims abstract description 86
- CHIFOSRWCNZCFN-UHFFFAOYSA-N pendimethalin Chemical compound CCC(CC)NC1=C([N+]([O-])=O)C=C(C)C(C)=C1[N+]([O-])=O CHIFOSRWCNZCFN-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000003094 microcapsule Substances 0.000 title claims abstract description 51
- 239000000375 suspending agent Substances 0.000 title claims abstract description 45
- RQVYBGPQFYCBGX-UHFFFAOYSA-N ametryn Chemical compound CCNC1=NC(NC(C)C)=NC(SC)=N1 RQVYBGPQFYCBGX-UHFFFAOYSA-N 0.000 claims abstract description 17
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 15
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 206010011732 Cyst Diseases 0.000 claims description 18
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 18
- 208000031513 cyst Diseases 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 17
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- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 8
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- 241000196324 Embryophyta Species 0.000 abstract description 19
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- MHTNLJYRURGLAC-UHFFFAOYSA-N 3,4-dimethyl-2,6-dinitroaniline Chemical compound CC1=CC([N+]([O-])=O)=C(N)C([N+]([O-])=O)=C1C MHTNLJYRURGLAC-UHFFFAOYSA-N 0.000 description 1
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- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a microcapsule suspending-suspending agent containing pendimethalin. For the microcapsule suspending-suspending agent, pendimethalin and an active component II are compounded into active ingredients, and a capsule wall material, an initiator, an addition agent, a cosolvent and a solvent are added for reaching 100%, wherein the active component II is atrazine, or ametryn, or simazine. The microcapsule suspending-suspending agent containing pendimethalin can be used for preventing and controlling diseases of sugarcane, corn, broomcorn, and annual gramineae and broadleaf weeds in orchard garden, and the has the advantages of being long in lasting period, high in efficiency, capable of realizing synergistic interaction, safe and environment-friendly, and the like.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of microcapsule suspension-suspending agent containing pendimethalin.
Background technology
Pendimethalin (pendimethalin), have another name called execute that mend in field, weeding is logical, pendimethalin, herbicide is logical, dish is careless logical, in 1972 Nian You American Cyanamid Companies, first develops (P), active ingredient chemical name is N-1-(ethyl propyl) 2,6-dinitro-3,4-dimethylaniline.Pendimethalin is inner sucting conduction type selective herbicide, but its conductive performance is poor.Pendimethalin does not affect the sprouting of weed seed, but after young shoot, stem and root absorption medicament, works in suppressing weed seed germination process.Dicotyledon absorption site is hypocotyl, and monocotyledon is young shoot, and its symptom of being injured is that young shoot and secondary root are suppressed, and its reason is exactly that the synthetic of protein of these plants is suppressed, and grassy weed is had to good preventive effect.Be applicable to prevent and kill off in soybean, corn, peanut, pea, cotton, celery, tobacco, sunflower, paddy rice, various vegetables and fruit tree garden multiple monocotyledon weed and annual nutgrass flatsedge as good in barnyard grass, lady's-grass, eleusine indica, moleplant seed, green foxtail, cyperus iria texts, simultaneously as effectively same in lamb's-quarters, kitchen garden, recessed amaranth, chickweed, ox chickweed, Siberian cocklebur, Veronica, clearvers etc. to broad leaved weed, application is at home and abroad very wide, as used many countries and regions such as the U.S., European countries, Japan, Israel, India, Australia spread.The preparation type of pendimethalin mainly contains: the novel forms such as pendimethalin suspension and pendimethalin water-dispersible granules, have also appearred in wetting powder, missible oil, granule recently.
Atrazine, ametryn, Simanex etc. are central Shanxi plain class weed killer herbicide, before seedling, herbicide after seedling.Be mainly used in corn, sugarcane, Chinese sorghum, tea tree and garden and forest land and prevent and kill off annual gramineous weed and broad leaved weed.Perennial weed by rhizome or radical bud breeding is had to inhibitory action.There are being on the market single dose and the multiple formulations of built agent such as suspending agent, wetting powder, water dispersible granules, suspension emulsion at present.
At present, the conventional formulation of pendimethalin, atrazine, ametryn, Simanex can not be prevented and kill off the weeds in crop whole vegetative period by applied once also needs the weed killer herbicide that fills spray, but so just strengthened the cost of farmland weeding, some overlay film farmland cannot fill spray, thereby cause the underproduction, bring economic loss.In addition, people more and more focus on the pressure that the use of agricultural chemicals brings environment.In emulsifiable concentrates for agricultural chemicals, the application of a large amount of organic solvents has brought serious pollution to natural environment, and the moving state of weed killer herbicide in soil relates to superficial water, particularly the pollution of underground water.Leaching is the important channel that weed killer herbicide moves in soil, by this approach, causes weed killer herbicide loss to reach 5%, is generally greater than 1%.Because leaching is used and brings problems to weed killer herbicide: 1, the downward leaching of weed killer herbicide, causes herbicidal effect not good, and easily causes underground water residual contamination; 2, by leaching, make weed killer herbicide enter crop root distribution soil layer, cause potential difference selective herbicide injury crop; 3, reverse leaching makes weed killer herbicide move to soil table, by volatilizing, loses.
Suspension-micro-capsule suspension is to using macromolecular material as cyst wall or cyst membrane, by chemistry, physics or physicochemical method, liquid pesticide active component as the capsule heart is wrapped up, form a kind of microencapsulation with semipermeability cyst membrane, and they are usingd to certain concentration stabilize disperse, be suspended in the water as continuous phase, then mix and form a kind of microcapsule suspension-suspending agent with active component that another solid is insoluble in organic solvent and water.Suspension-microcapsule suspension, due to the existence of cyst membrane, has following advantage:
1. oil phase and water are separated, hydrolabil pesticide activity component, is difficult to make aqueous emulsion and microemulsion, but can be made into microcapsule formulations.
2. suppress the decomposition of the active component that causes because of environmental factor (as light, heat, air, rainwater, soil, microorganism) and other chemical substances etc., improve the stability of medicament itself.
3. cyst membrane can suppress agricultural chemicals volatility, shelter its original peculiar smell.And can reduce the evaporation rate of volatility agricultural chemicals, reduce the extraneoas loss that the volatilization by agricultural chemicals causes, improve the bioavailability of active ingredient.
4. introduce and control the function discharging, extend its lasting period, reduce quantity and the frequency of dispenser, improve the pressure of agricultural chemicals to environment.
5. reduced the harmfulness of organic solvent.Many pesticide activity components, due to the physico chemical property of self, are difficult to be processed into environmentally friendly water base property preparation, conventionally can only be processed into missible oil and sell, and a large amount of uses of organic solvent have brought great burden to environment for human survival.The characteristics such as simultaneously organic solvent flash-point, burning-point be low are given and are stored, transportation brings very large inconvenience.
6. be the effective composite great convenience that provides of the pesticidal active substance of multiple different performance.
7. reduce poisoning.Due to the existence of cyst wall, pesticide activity component need to just can manifest its toxicity by the damaged or diffusion of microcapsules, thereby can reduce the toxicity of some pesticide activity component to crop.
8. reduce acute toxicity.Microcapsule formulations can significantly reduce pesticidal preparations product to mammiferous toxicity.
Be not difficult to find out, the above-mentioned functions of microcapsules, no matter for the Improvement and perfection of existing pesticide species, or facilitates the success of new varieties of pesticides to develop and apply, and will be all extremely important.
Summary of the invention
The object of the invention is the deficiency proposing for said method, propose the microcapsule suspension-suspending agent containing pendimethalin that a kind of high efficiency, lasting period are long, have synergistic function, Environmental Safety.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
Containing microcapsule suspension-suspending agent of pendimethalin, it is characterized in that: it is that to take pendimethalin and active component II be active component, and all the other complement to microcapsule suspension-suspending agent of 100% with cyst material, initator, auxiliary agent, cosolvent and solvent; Active component II is any one in atrazine, ametryn or Simanex.
Take pendimethalin and active component II is active component, the weight content of pendimethalin is 0.1%～45%, the weight content of active component II is 0.1%～45%, the weight content of cyst material is 1%～20%, the weight content of initator is 0.1%～5%, the weight content of auxiliary agent is 1%～15%, and the weight content of cosolvent is 1%～25%, and solvent complements to 100%.
Preferably the weight content of pendimethalin is 1%～40%, the weight content of active component II is 1%～40%, the weight content of cyst material is 1%～18%, the weight content of initator is 0.1%～5%, the weight content of auxiliary agent is 1%～15%, the weight content of cosolvent is 1%～25%, and solvent complements to 100%.
Described cyst material is Lauxite, polyisocyanates, gelatin, gum Arabic or melamine resin.
Described auxiliary agent is agriculture breast polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, Tween-80, naphthalenesulfonate formaldehyde condensation compound, formaldehyde condensation products, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate or the lignosulfonates of methyl naphthalene sulfonic acid sodium and a kind of or any several combination in emulsifying dispersant known in those skilled in the art.
Described initator is hydrochloric acid, glacial acetic acid, ammonium chloride, a kind of or any several combination of ethylenediamine, triethylamine or triethanolamine and acid regulator known in those skilled in the art or alkaline conditioner.
Described cosolvent is dimethylbenzene, methyl alcohol, ethanol, a kind of or any several combination of acetone, toluene, benzene, cyclohexanone or fatty acid methyl ester and solvent known in those skilled in the art.
Described solvent is water.
Concrete preparation method containing pendimethalin microcapsule suspending agent of the present invention is, at band, protect in the reaction vessel of gentle agitation, pendimethalin is dissolved in cosolvent, then after adding auxiliary agent, solvent and cyst material high-speed stirred evenly, add initator, change common stirring into, and be progressively warming up to 60 ℃, then common stirring 6 hours under 60 ℃ of heat-retaining conditions, must be containing the microcapsule suspending agent of pendimethalin, and then adding the active component II that was crushed to 1000 mesh sieves, common stirring 1 hour, obtains the microcapsule suspension-suspending agent containing pendimethalin.Technological parameter is: it is 1000～1500 revs/min that high-speed stirred speed is controlled, and it is 60～150 revs/min that the speed of common stirring is controlled.
The applicable target crop of the present invention is corn, sugarcane, Chinese sorghum and orchard etc.
The present invention is to annual gramineae and broad leaved weed, as the multiple weeds such as lady's-grass, green foxtail, eleusine indica, amur foxtail, annual bluegrass, barnyard grass, kitchen garden, Liao, lamb's-quarters, amaranth all have excellent preventive effect.
Compared with prior art, the invention has the beneficial effects as follows:
(1) high efficiency.Introduce and control the function discharging, extend its lasting period, reduce quantity and the frequency of dispenser, significantly improve work efficiency several times, reduce cost of labor.
(2) Environmental Safety.Microcapsule suspending agent solvent is water, has greatly reduced the harmfulness of organic solvent to environment.The characteristics such as simultaneously organic solvent flash-point, burning-point be low are given and are stored, transportation brings very large inconvenience.
(3) safety.Due to the existence of cyst wall, pesticide activity component need to just can manifest its toxicity by the damaged or diffusion of microcapsules, can significantly reduce pesticidal preparations product to mammiferous toxicity, also can reduce the toxicity of pesticide activity component to crop simultaneously.
(4) Synergistic, composition of the present invention has obvious synergistic effect on to the preventive effect of weeds, and grass family and broad leaved weed are had to excellent preventive effect, and the preventive effect of comparing each single dose is significantly increased, and has reduced cost accounting simultaneously.
accompanying drawing explanation
Fig. 1 is the indoor joint toxicity measuring ED90 figure of pendimethalin and atrazine.
Fig. 2 is the composite indoor joint toxicity measuring ED90 figure of pendimethalin and ametryn.
Fig. 3 is the composite indoor joint toxicity measuring ED90 figure of pendimethalin and simajine.
embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to the scope that embodiment represents.
Embodiment 1:
0.2% pendimethalin atrazine microcapsule suspension-suspending agent (1:1)
Formula: pendimethalin 0.1kg, atrazine 0.1kg, dimethylbenzene 1kg, ethylenediamine 0.1kg, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 1kg, polyisocyanates 1kg, water complements to 100kg.
Preparation technology: protect in the reaction vessel of gentle agitation at band, pendimethalin is dissolved in cosolvent, then after adding auxiliary agent, solvent and cyst material high-speed stirred evenly, add initator, change common stirring into, and be progressively warming up to 60 ℃, then common stirring 6 hours under 60 ℃ of heat-retaining conditions, must be containing the microcapsule suspending agent of pendimethalin, and then adds the active component II that was crushed to 1000 mesh sieves, common stirring 1 hour, obtains the microcapsule suspension-suspending agent containing pendimethalin; Technological parameter is: it is 1000～1500 revs/min that high-speed stirred speed is controlled, and it is 60～150 revs/min that the speed of common stirring is controlled.
According to the preparation technology identical with embodiment 1, preparation following examples.
Embodiment 2:
1% pendimethalin ametryn microcapsule suspension-suspending agent (2:3)
Formula: pendimethalin 0.4kg, ametryn 0.6kg, methyl alcohol 2.5kg, cyclohexanone 0.5kg, triethylamine 0.6kg, Tween-80 5kg, naphthalenesulfonate formaldehyde condensation compound 2kg, gum Arabic 2.5kg, water complements to 100kg.
Embodiment 3:
5% pendimethalin Simanex microcapsule suspension-suspending agent (4:1)
Formula: pendimethalin 4kg, Simanex 1kg, ethanol 4.5kg, ethylenediamine 0.5kg, triethylamine 0.2kg, naphthalenesulfonate formaldehyde condensation compound 10kg, gelatin 6kg, water complements to 100kg.
Embodiment 4:
12% pendimethalin atrazine microcapsule suspension-suspending agent (1:2)
Formula: pendimethalin 4kg, atrazine 8kg, acetone 5kg, ammonium chloride 1kg, glacial acetic acid 0.4kg, the formaldehyde condensation products 10kg of methyl naphthalene sulfonic acid sodium, gum Arabic 10kg, water complements to 100kg.
Embodiment 5:
20% pendimethalin atrazine microcapsule suspension-suspending agent (1:19)
Formula: pendimethalin 1kg, atrazine 19kg, acetone 5kg, toluene 1kg, glacial acetic acid 1kg, the formaldehyde condensation products 10kg of methyl naphthalene sulfonic acid sodium, gelatin 10kg, water complements to 100kg.
Embodiment 6:
42% pendimethalin ametryn microcapsule suspension-suspending agent (20:1)
Formula: pendimethalin 40kg, ametryn 2kg, cyclohexanone 7kg, glacial acetic acid 3kg, polyoxyethylene nonylphenol ether 12kg, gelatin 12kg, water complements to 100kg.
Embodiment 7:
30% pendimethalin atrazine microcapsule suspension-suspending agent (1:29)
Formula: pendimethalin 1kg, atrazine 29kg, benzene 12kg, ethylenediamine 2.5kg, castor oil polyoxyethylene ether 15kg, polyisocyanates 4kg, water complements to 100kg.
Embodiment 8:
31% pendimethalin atrazine microcapsule suspension-suspending agent (30:1)
Formula: pendimethalin 30kg, atrazine 1kg, dimethylbenzene 18kg, triethylamine 2.5kg, polyoxyethylene nonylphenol ether 15kg, polyisocyanates 4.2kg, water complements to 100kg.
Embodiment 9:
35% pendimethalin Simanex microcapsule suspension-suspending agent (4:3)
Formula: pendimethalin 20kg, Simanex 15kg, toluene 8kg, triethylamine 0.5kg, triethanolamine 5kg, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 6kg, castor oil polyoxyethylene ether 9kg, polyisocyanates 4kg, water complements to 100kg.
Embodiment 10:
41% pendimethalin atrazine microcapsule suspension-suspending agent (40:1)
Formula: pendimethalin 40kg, atrazine 1kg, toluene 12kg, triethanolamine 2.5kg, castor oil polyoxyethylene ether 15kg, polyisocyanates 4.5kg, water complements to 100kg.
Embodiment 11:
41% pendimethalin atrazine microcapsule suspension-suspending agent (1:40)
Formula: pendimethalin 1kg, atrazine 40kg, benzene 12kg, ethylenediamine 2.5kg, castor oil polyoxyethylene ether 15kg, polyisocyanates 4kg, water complements to 100kg.
Embodiment 12:
44% pendimethalin ametryn microcapsule suspension-suspending agent (10:1)
Formula: pendimethalin 40kg, ametryn 4kg, fatty acid methyl ester 5kg, dimethylbenzene 5kg, glacial acetic acid 2kg, the formaldehyde condensation products 3.5kg of methyl naphthalene sulfonic acid sodium, lignosulfonates 1kg, melamine resin 4kg, water complements to 100kg.
Embodiment 13:
46% pendimethalin Simanex microcapsule suspension-suspending agent (1:45)
Formula: pendimethalin 1kg, Simanex 45kg, dimethylbenzene 15kg, ammonium chloride 1.5kg, glacial acetic acid 0.5kg, lignosulfonates 4kg, Lauxite 10kg, water complements to 100kg.
Embodiment 14:
50% pendimethalin atrazine microcapsule suspension-suspending agent (1:9)
Formula: pendimethalin 5kg, atrazine 45kg, toluene 25kg, hydrochloric acid 1.8kg, Tween-80 10kg, Lauxite 18kg, water complements to 100kg.
Prepared microcapsule suspension-suspending agent the outward appearance containing pendimethalin is homogeneous suspension liquid.
The embodiment of the present invention is the method that adopts indoor virulence and field trial to combine.First by Toxicity Determination, whether synergy or addition after clear and definite two kinds of medicaments are composite by a certain percentage.
Application Example 1 pendimethalin and the indoor joint toxicity measuring of atrazine
1.1 for examination target lady's-grass
The former medicine of 1.2 reagent agent 98% pendimethalin; The former medicine of 98% atrazine; Pendimethalin and atrazine different proportion mixture preparation.
1.3 test method
Adopt soil spray-on process to process.The air-dry sandy loam that test adopts the content of organic matter≤2%, PH is neutral, permeability is good, sieve, is filled to basin alms bowl 4/5 place with basin alms bowl of the same size by soil, adopts basin alms bowl bottom infiltrating irrigation mode, is that soil is completely moistening.By the uniform broadcasting of pretreated lady's-grass seed, in soil surface, then earthing 1cm is thick thereon, sows 24 hours and carries out soil spraying processing afterwards.
1.4 statistical method
1.4.1 adopt absolute value investigation method, according to following formula, calculate the fresh weight preventive effect that each is processed:
In formula:
E---fresh weight preventive effect; C---contrast weeds acrial part fresh weight; T---process weeds acrial part fresh weight.
According to the anti-effectiveness DPS system of the fresh weight of each processing, the probability value of the logarithm value of drug dose and preventive effect is carried out to regression analysis, calculate the ED50 value of two single doses and each mixture preparation.
1.4.2 adopt isoboles to judge after two kinds of medicaments are mixed whether have synergistic effect
According to the ED50 value of two single doses, with the dosage of transverse axis and longitudinal axis difference weed killer herbicide A, B, on diaxon, mark respectively site the line of the ED50 of two medicaments, be the theoretical equivalent line of two kinds of herbicide mixtures.
Obtain the ED50 value of each mixture preparation, and mark in coordinate diagram.If each site of ED50 value of mixed preparation, under equivalent line, is all synergistic effect; If each site on equivalent line, is antagonism; If be summation action close to equivalent line.
1.5 toxicity test results
Test gained respectively processes virulence equation and ED90 value is as shown in the table:
According to the above-mentioned ED90 that each is processed, be Fig. 1, Fig. 1 has the convex line of bilateral effect.
As seen from Figure 1, supply its site of several proportioning mixtures of examination all under theoretical equivalent line, illustrate that it all has obvious synergistic effect to the preventive effect of lady's-grass for these several proportionings of trying, thereby illustrate that pendimethalin and atrazine have significant synergies, can obviously improve the effect of preventing and kill off to controlling object.
The composite indoor joint toxicity measuring of Application Example 2 pendimethalins and ametryn
2.1 for examination target green foxtail
The former medicine of 2.2 reagent agent 98% pendimethalin; The former medicine of 96% ametryn; Pendimethalin and ametryn different proportion mixture preparation.
2.3 test method
Adopt soil spray-on process to process.The air-dry sandy loam that test adopts the content of organic matter≤2%, PH is neutral, permeability is good, sieve, is filled to basin alms bowl 4/5 place with basin alms bowl of the same size by soil, adopts basin alms bowl bottom infiltrating irrigation mode, is that soil is completely moistening.By the uniform broadcasting of pretreated green foxtail seed, in soil surface, then earthing 1cm is thick thereon, sows 24 hours and carries out soil spraying processing afterwards.
2.4 statistical method
With example 1, carry out absolute value investigation method, calculate the strain preventive effect that each is processed, and evaluate with isoboles.
2.5 toxicity test results
Test gained respectively processes virulence regression equation and ED50 value is as shown in the table:
According to the above-mentioned ED90 that each is processed, be Fig. 2.
As seen from Figure 2, in 6 proportioning mixtures for examination, ratio is that in 32:1 situation, two mixture sites approach theoretical equivalent line, for obvious summation action, faint synergistic effect, the site of other several proportioning mixtures is all under theoretical equivalent line, illustrate that it all has obvious synergistic effect to the preventive effect of green foxtail for these several proportionings of trying, thereby illustrating that pendimethalin and ametryn are composite has significant synergies, can obviously improve the effect of preventing and kill off to controlling object, be worth further field experiment to be promoted.
The composite indoor joint toxicity measuring of Application Example 3 pendimethalins and simajine
3.1 for examination target kitchen garden
The former medicine of 3.2 reagent agent 98% pendimethalin; The former medicine of 95% simajine; Pendimethalin and simajine different proportion mixture preparation.
3.3 test method
Adopt soil spray-on process to process
3.4 statistical method
With example 1, carry out absolute value investigation method, calculate the strain preventive effect that each is processed, and evaluate with isoboles.
3.5 toxicity test results
Test gained respectively processes virulence regression equation and ED50 value is as shown in the table:
According to the above-mentioned ED90 that each is processed, be Fig. 3.
As can be seen from Figure 3, for the mixture of 5 proportionings trying, its site in coordinate diagram all, under theoretical equivalent line, illustrates after these two kinds of medicaments are mixed and has obvious synergistic effect, significantly strengthened the effect of preventing and kill off to kitchen garden.
Application Example 4 the various embodiments described above land for growing field crops efficiency tests
The present embodiment adopts above-mentioned 10 FORMULATION EXAMPLE is carried out to land for growing field crops dispenser, and insecticide-applying way adopts broadcasts the front soil treatment of rear seedling, and soil is carried out to even spraying.
The preventive effect of different FORMULATION EXAMPLE to paddy field weed
From above result of the test, can find out, all processing for examination are all prevented and kill off effect to several anti-objects, but the preventive effect that each single dose is processed is starkly lower than the preventive effect of each complex preparation, and from follow-up investigation, in all medicaments for examination, the lasting period of complex preparation is obviously longer than the lasting period of each single dose, illustrate that composition described in the present invention made after microcapsule suspension-suspending agent significant prolongation the lasting period of medicament, also better to the preventive effect of weeds, longer, therefore the present invention has obvious advantage in actual applications, not only significantly improve the preventive effect to weeds, also extended the lasting period to a great extent.
Claims (8)
1. containing microcapsule suspension-suspending agent of pendimethalin, it is characterized in that: it is that to take pendimethalin and active component II be active component, and all the other complement to 100% microcapsule suspending agent with cyst material, initator, auxiliary agent, cosolvent and solvent; Described active component II is ametryn;
Take pendimethalin and active component II is active component, the weight content of pendimethalin is 0.1%～45%, the weight content of active component II is 0.1%～45%, the weight content of cyst material is 1%～20%, the weight content of initator is 0.1%～5%, the weight content of auxiliary agent is 1%～15%, and the weight content of cosolvent is 1%～25%, and solvent complements to 100%; Wherein the weight ratio of pendimethalin and ametryn is 16:1,4:1,1:1,1:4,1:16.
2. microcapsule suspension-the suspending agent containing pendimethalin according to claim 1, it is characterized in that: take pendimethalin and active component II is active component, the weight content of pendimethalin is 1%～40%, the weight content of active component II is 1%～40%, the weight content of cyst material is 1%～18%, and the weight content of initator is 0.1%～5%, and the weight content of auxiliary agent is 1%～15%, the weight content of cosolvent is 1%～25%, and solvent complements to 100%.
3. microcapsule suspension-the suspending agent containing pendimethalin according to claim 1, is characterized in that: described cyst material is Lauxite, polyisocyanates, gelatin, gum Arabic or melamine resin.
4. microcapsule suspension-the suspending agent containing pendimethalin according to claim 1, is characterized in that: described auxiliary agent is formaldehyde condensation products, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate or the lignosulfonates of polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, Tween-80, naphthalenesulfonate formaldehyde condensation compound, methyl naphthalene sulfonic acid sodium and a kind of or any several combination in emulsifying dispersant known in those skilled in the art.
5. microcapsule suspension-the suspending agent containing pendimethalin according to claim 1, it is characterized in that: described initator is hydrochloric acid, glacial acetic acid, ammonium chloride, a kind of or any several combination of ethylenediamine, triethylamine or triethanolamine and acid regulator known in those skilled in the art or alkaline conditioner.
6. microcapsule suspension-the suspending agent containing pendimethalin according to claim 1, it is characterized in that: described cosolvent is dimethylbenzene, methyl alcohol, ethanol, a kind of or any several combination of acetone, toluene, benzene, cyclohexanone or fatty acid methyl ester and solvent known in those skilled in the art.
7. microcapsule suspension-the suspending agent containing pendimethalin according to claim 1, is characterized in that: described solvent is water.
8. microcapsule suspension-the suspending agent containing pendimethalin according to claim 1, it is characterized in that: the preparation method of described microcapsule suspension-suspending agent is: at band, protect in the reaction vessel of gentle agitation, pendimethalin is dissolved in to cosolvent, then add auxiliary agent, after solvent and cyst material high-speed stirred are even, add initator, change common stirring into, and be progressively warming up to 60 ℃, then common stirring 6 hours under 60 ℃ of heat-retaining conditions, must be containing the microcapsule suspending agent of pendimethalin, and then add the active component II that was crushed to 1000 mesh sieves, common stirring 1 hour, contain the microcapsule suspension-suspending agent of pendimethalin, technological parameter is: it is 1000～1500 revs/min that high-speed stirred speed is controlled, and it is 60～150 revs/min that the speed of common stirring is controlled.
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