CN104012545A - Bactericidal composition containing SYP-Z048 and prothioconazole - Google Patents
Bactericidal composition containing SYP-Z048 and prothioconazole Download PDFInfo
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Abstract
The invention relates to a bactericidal composition containing SYP-Z048 and prothioconazole, wherein the effective component of the bactericidal composition is SYP-Z048 and prothioconazole in a binary compound manner. In the bactericidal composition, the mass ratio of the SYP-Z048 to the prothioconazole is (1-50) to (50-1); the mass fraction ratio of the SYP-Z048 to the prothioconazole in the effective component of the bactericidal composition is 1-80%; the bactericidal composition also comprises auxiliary components which are allowed to be used and accepted in pesticide. The bactericidal composition can be prepared into preparations such as missible oil, suspending agents, wettable powder, water dispersible granules, emulsions in water, microemulsions, granules and microcapsules. The bactericidal composition is mainly used for controlling powdery mildew, banded sclerotial blight, blight, leaf spot disease, rust disease, sclerotiniose, net blotch, scald disease, black spot disease, brown blotch disease and black shank of wheat, barley, rape, peanuts, rice and legume crops and gray mold of melons.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, particularly relate to a kind of bactericidal composition that contains SYP-Z048 and prothioconazoles.
Background technology
SYP-Z048 is the bactericide of Shenyang Chemical Engineering Inst's initiative, belongs to the synthetic inhibition bactericide of sterol, can effectively control not generation and the harm of disease of leaf on the ground by root dispenser.There is the bactericidal activity of wide spectrum; there is protection and therapeutic action and good interior absorption simultaneously; be mainly used in the control of plant botrytis, chemistry N-methyl-3-(4-chlorine) phenyl-5-methyl-5-pyridine-3-methyl-oxazoline by name of SYP-Z048, its chemical structural formula is
.
Prothioconazoles is a kind of New-type wide-spectrum triazolinthione series bactericidal agent of Beyer Co., Ltd's development, and prothioconazoles toxicity is low, and without teratogenesis, mutagenesis type, to embryo's avirulence, to human and environment safety.Prothioconazoles is mainly used in preventing and treating cereal crop as numerous diseases such as wheat, barley, rape, peanut, paddy rice and legume crops.Almost all wheat class diseases are had to good control efficiency,
As the powdery mildew of Wheat and barley, banded sclerotial blight, fusarium wilt, leaf spot, rust, stalk break, net blotch, moire disease etc.Can also prevent and treat the soil-borne disease of oily Lay and peanut, as stalk break, and main foliage disease, as gray mold, black spot, brown spot, balck shank, stalk break and rust etc.(its chemical structural formula is chemistry (the RS)-2-by name of prothioconazoles for 2-(1-chlorine cyclopropyl)-3-(2-chlorphenyl)-2-hydroxypropyl-1-2-dihydro-3-1,2,4-triazole-3-thioketones
Using chemical agent is the most effectively means of controlling plant diseases.But long-term use single chemical bactericide continuously high dose, easily cause the problem such as residual, environmental pollution and resistance to pesticide resistance fungi development of medicament.Reasonably the composite or mixture of chemical bactericide has expansion fungicidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, reduce residual, delay the positive feature such as Antifungal resistance and drug-fast generation and development, bactericide compounded is one of the effective method the most addressing the above problem.Exploitation new product bactericide price is constantly soaring, and by contrast, exploitation is efficient with research, composite and the mixture of low toxicity, low-residual has small investment, the lead time is short and be subject to domestic and international attention, and numerous and confused increasing develops dynamics.We filter out SYP-Z048 and prothioconazoles and carry out compositely on the basis of lab screening and field trial, have obvious synergistic effect.And there is no at present people about the composite bactericidal composition of SYP-Z048 and prothioconazoles and application reported.
Summary of the invention
Based on above situation, the object of the invention is to provide a kind of new and effective pesticide sterilizing composite.Be mainly used in preventing and treating powdery mildew, banded sclerotial blight, fusarium wilt, leaf spot, rust, stalk break, net blotch, moire disease, black spot, brown spot, balck shank and melon gray mold on wheat, barley, rape, peanut, paddy rice and legume crop.
Technical scheme of the present invention realizes by following measures:
A bactericidal composition that contains SYP-Z048 and prothioconazoles, two yuan of the active ingredient SYP-Z048 of this bactericidal composition and prothioconazoles are composite, and all the other are auxiliary element.In wherein said bactericidal composition, the mass ratio of active ingredient SYP-Z048 and prothioconazoles is 1～50: 50～1, described bactericidal composition of the present invention is 1～20: 20～1 o'clock through the mass ratio of toxicity test experimental verification SYP-Z048 and prothioconazoles, and synergistic effect is better.
The formulations of pesticide that described bactericidal composition of the present invention can be prepared are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.Wherein active ingredient SYP-Z048 and the prothioconazoles gross mass in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations, while wherein accounting for 5%～50%, and toxicity and residually reach good balance, cost is also lower.
The specific embodiments of the formulations of pesticide that bactericidal composition of the present invention is mixed with is as follows:
Described bactericidal composition is cream preparation, and the mass fraction of component is 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 10～30 parts of conventional emulsifiers; 20～50 parts of conventional solvents; 1～5 part of conventional synergist.The concrete production stage of this cream preparation is first active ingredient SYP-Z048 and prothioconazoles to be added in solvent to the oily liquids that becomes transparent and homogeneous after adding again emulsifier, synergist to stir after dissolving completely, filling, can be made into the cream preparation of the present composition.
Described bactericidal composition is suspending agent, and the mass fraction of component is: 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 5～20 parts of dispersants; 1～5 part of antifreezing agent; 0.1～2 part of thickener; 0.1～0.8 part of defoamer; 0～10 part of penetrating agent; 0.1～5 part of pH value conditioning agent; Water, surplus.The concrete production stage of this suspending agent is for first mixing other auxiliary agents, mix through high speed shear, add active ingredient SYP-Z048 and prothioconazoles, abrading-ball 2～3 hours in ball crusher, make a diameter all below 5mm, can be made into the suspending agent preparation of the present composition.
Described bactericidal composition is wetting powder, and the mass fraction of component is: 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 3～10 parts of dispersants; 1～5 part of wetting agent; Filler, surplus.The concrete production stage of this wetting powder is: by above-mentioned formula, active ingredient SYP-Z048 is mixed with prothioconazoles and dispersant, wetting agent and filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of the present composition.
Described bactericidal composition is water dispersible granules, and the mass fraction of component is: 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 3～10 parts of dispersants; 1～10 part of wetting agent; 1～5 part of disintegrant; Filler, surplus.The concrete production stage of this water dispersible granules is: by above-mentioned formula, active ingredient SYP-Z048 is mixed with prothioconazoles and dispersant, wetting agent, disintegrant and filler, pulverize with micro jet, through mediating, then add and in fluidized bed prilling dryer, carry out after granulation, dry, screening, through sample analysis, can be made into the water dispersible granules of the present composition.
Described bactericidal composition is aqueous emulsion, and the mass fraction of component is: 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 3～30 parts of emulsifier; 5～15 parts of solvents; 2～15 parts of stabilizing agents; 1～5 part of antifreezing agent; 0.1～8 part of defoamer; 0.2～2 part of thickener; Water, surplus.The concrete production stage of this aqueous emulsion is: first SYP-Z048 and prothioconazoles, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; By part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes into uniform water; When reactor high speed stirs, oil phase is added to water, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type, can be made into the aqueous emulsion of the present composition.
Described bactericidal composition is microemulsion, and the mass fraction of component is: 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 10～30 parts of emulsifier, 1～8 part of antifreezing agent, 0.5～10 part of stabilizing agent, 20～50 parts of conventional solvent cosolvents.SYP-Z048 and prothioconazoles are dissolved completely with cosolvent, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Described bactericidal composition is granule, and the mass fraction of component is: 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 1～10 part of wetting dispersing agent; 0.1～5 part of thickener; 0.1～5 part of defoamer; Castor oil, surplus is supplied.Each components such as active ingredient SYP-Z048 and prothioconazoles, dispersant, stabilizing agent, defoamer and solvent are mixed in the ratio of formula, put into after the grinding of sand milling still, send in mixer for well-distribution and mix and get product.
Described bactericidal composition is microcapsule formulations, and the mass fraction of component is: 1～50 part of: SYP-Z048; 1～50 part of prothioconazoles; 5～20 parts, urea; 5～20 parts, formaldehyde; 5～20 parts of emulsifying dispersants; 1～5 part of antifreezing agent; 0.1～2 part of thickener; 0.1～0.8 part of defoamer; Water, surplus.In the there-necked flask that agitating device is housed, add urea and formaldehyde (amount of substance ratio is about l:1.5～2.0), with the left and right, pH value to 8～9 of sodium hydroxide solution regulator solution, then be warming up to 70～80 DEG C, reaction obtains stable urea resin prepolymer.The former medicine of getting a certain amount of SYP-Z048 and prothioconazoles is dissolved in cyclohexane, and adds emulsifying dispersant in solution, follows vigorous stirring, is made into the O/W type stable emulsion taking the aqueous solution containing emulsifying dispersant as water.Above-mentioned urea resin prepolymer is added in emulsion, regulate pH value, polymerization reaction take place under acid catalysis condition, is wrapped oil phase substance, forms microcapsule granule.Slowly heat up, solidify, temperature is controlled at 40～50 DEG C, hardening time 1h.Selection adds appropriate auxiliary agent, the microcapsule suspending agent that gets final product stablely.
Wherein above-described emulsifier is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, any or more than one any mixtures than forming in polyoxyethylene aliphatic alcohol ether.
Described solvent is dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine-based vegetable oil code name is ND-45, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), one or more in water equal solvent are arbitrarily than the mixture of composition.
It is LG-3, GY-D1252, GY-D1256, SNWGF-01 that described dispersant is selected from polycarboxylate code name, lignosulfonates code name is 201107,21108, alkylphenol polyoxyethylene methyl ether condensate sulfate, alkylsulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, one or more in fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen phosphenylic acid salt dimly, spaonin powder, silkworm excrement, one or more in soapberry powder.
Described disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, one or more in sodium bicarbonate.
Described thickener is selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, in polyvinyl alcohol one or more.
Described stabilizing agent is selected from sodium citrate, the one in resorcinol.
Described antifreezing agent is selected from ethylene glycol, propane diols, one or more in glycerine.
Described defoamer is selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10one or more of fatty alcohol.
Described filler is selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, one or more in precipitated calcium carbonate.
The present invention has obvious synergistic effect taking SYP-Z048 and prothioconazoles as the composite bactericide of active ingredient, delay the drug-fast generation in key, and reduced to become to produce cost and use cost, be mainly used in preventing and treating powdery mildew, banded sclerotial blight, fusarium wilt, leaf spot, rust, stalk break, net blotch, moire disease, black spot, brown spot, balck shank and melon gray mold on wheat, barley, rape, peanut, paddy rice and legume crop.
Embodiment
For making technical scheme of the present invention, object and advantage are clearer, and the present invention describes with following specific embodiment, but the present invention is not limited to these examples.The mode that effect experiment of the present invention adopts indoor biometrics and field trial to combine, if no special instructions, the ratio of below mentioning is all ratio of quality and the number of copies.
The proportioning co-toxicity experiments different from prothioconazoles of embodiment: SYP-Z048.
1.1 reagent agent
The former medicine of 96% SYP-Z048, the former medicine of 95% prothioconazoles, above-mentioned former medicine provides by research and development department of extra large rel medicine company limited company.
1.2 test targets
Wheat powdery mildew germ, separation and purification gained the wheat powdery mildew incidence of leaf taking back from Fengyang County is cultivated and is preserved in 4 DEG C of refrigerators on PDA inclined-plane.
For examination medium
:
PDA medium
:potato 200g, glucose 20g, agar 20g, water 1000ml.
AEA medium
:dusty yeast 5g/L, glycerine 20mL/L, MgSO
40.25g/L, NaNO
36g/L, KCl 0.5g/L, KH
2pO
41.5g/L, agar powder 20g/L, deionized water 1L.
1.3 test method
1.3.1 medicament preparation
First use the former medicine of acetone solution, according to the result of preliminary experiment, two appropriate former medicines are made into several different proportionings, then it is stand-by with acetone, each processing to be diluted to respectively to several concentration gradients.
Susceptible wheat cultivation, in pot for growing seedlings, is placed in to greenhouse and cultivates, and plant grows to three to four leaf after dates, gathers the blade of identical leaf age, for cultivation and the mensuration of wheat powdery mildew.
1.3.2 the cultivation of wheat powdery mildew and the preparation of spore suspension
Wheat powdery mildew adopts plants method to cultivate under 20 DEG C, the condition of 12h alternation of light and darkness, and every 30 d turn culture 1 time.When inoculation, with the conidium on sterile water wash-out incidence of leaf, being mixed with spore concentration is l × 10
6the suspension of individual/mL.
1.3.3 strains tested sensitivity testing
Adopt leaf dish moisturizing method to carry out toxicity test.First the blade of collection is prepared into the leaf dish that diameter is 1.5cm, mix at random, be placed in respectively the series concentration liquid configuring and soak lh, 50 leaf dishes of each concentration, test is with the blank that is treated to of adding medicine not, after immersion finishes, leaf faces up and puts on the wetting blotting paper of identical liquor strength, liquid on leaf dish is blotted, the spore suspension l0L preparing is inoculated in to leaf dish central authorities, and room temperature is placed after 5 min, is placed under 20 DEG C, the condition of 1 2h alternation of light and darkness and cultivates, after 10d, measure the onset area on leaf dish, calculate EC
50.
On the basis of preliminary experiment, respectively single dose SYP-Z048 and prothioconazoles are carried out to toxicity test in order to upper method, the two EC
50value is respectively 4.4725 ㎎/l and 6.1132 ㎎/l.
The percentage that accounts for leaf disc area according to lesion area is divided sick level
0 grade: anosis;
1 grade: sorus area accounts for below 5% of whole leaf area;
3 grades: sorus area accounts for below the 6%-10% of whole leaf area;
5 grades: sorus area accounts for below the 11%-20% of whole leaf area;
7 grades: sorus area accounts for below the 21%-50% of whole leaf area;
9 grades: sorus area accounts for the more than 50% of whole leaf area;
1.3.4 mixture toxicity test and interpretation of result
Carry out the toxicity test of mixture according to mixed ratio by single dose toxicity test method.
If contrast lethality <5%, does not proofread and correct, contrast lethality, between 5%-20%, is proofreaied and correct by formula 2, contrast lethality >20%, and test need be reformed.
Taking the logarithm value of drug concentration (mg/L) as independent variable x, taking the probability value of corrected mortality as dependent variable y, set up respectively virulence regression equation formula, adopt DPS software to calculate the LC of single dose and each proportioning mixture
50calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.Co-toxicity coefficient CTC, computing formula is as follows: (taking SYP-Z048 as standard medicament, its toxicity index is 100):
The LC of toxicity index (TI) the=SYP-Z048 of prothioconazoles
50the LC of/prothioconazoles
50× 100
The LC of true toxicity index (ATI) the=SYP-Z048 of M
50the LC of/M
50× 100
TI × P prothioconazoles of TI × P SYP-Z048+prothioconazoles of theoretical toxicity index (TTI) the=SYP-Z048 of M
TTI × 100 of the ATI/M of co-toxicity coefficient (CTC)=M of M
In formula:
M is SYP-Z048 and the mixture of the different proportionings of prothioconazoles
P SYP-Z048 is SYP-Z048 shared ratio in mixture
P prothioconazoles is prothioconazoles shared ratio in mixture.
2.1 toxicity test results
Table 1 SYP-Z048 and the prothioconazoles toxicity test to wheat powdery mildew
As can be seen from the table, the result of the test of different proportion proportioning shows, dilute respectively and all show stronger synergistic effect in active ingredient ratio, wherein taking SYP-Z048 and prothioconazoles as 1:20～20:1 time the good suggestion of synergistic effect suitable proportion 1:10～10:1 left and right mixture preparation is carried out to further field control effectiveness test, to evaluate its field practical application effect.
3, field trial control wheat powdery mildew, the experimental result of gray mold of cucumber
3.1 field trial control wheat powdery mildews
3.1.1 test method
Test site, in great Tong Qiao village, capital town, Fengyang County, is wheat for studying thing, and kind is short morning 781, broadcasts sowing, and growing way is better, and test is established every mu and established contrast totally 10 processing.Every processing repeats 4 times, and random district group is arranged, 30 square metres of community areas.
3.1.2 control time and number of times
Before dispenser, after the 1st medicine after 7 days and the 2nd dispenser 7 days, 14 days, every community adopted 5 samplings of diagonal, every some investigation 20 strains, before blooming, 2 leaves are got in every strain from upper end, after blooming, sword-like leave 2 leaves are got in every strain, by leaf classification investigation occurring degree, calculate disease and refer to and control efficiency.
Grade scale is as follows:
0 grade: anosis;
1 grade: lesion area accounts for below 5% of one-piece blade area;
3 grades: lesion area accounts for the 6%-15% of one-piece blade area;
5 grades: lesion area accounts for the 16%-25% of one-piece blade area;
7 grades: lesion area accounts for the 26%-50% of one-piece blade area;
9 grades: lesion area accounts for the more than 50% of one-piece blade area.
3.1.3 drug effect computational methods
The total number of sheets × 100 of sick leaf rate (%)=sick number of sheets/investigate
Disease index=∑ (the sick number of sheets × relative level numerical value at different levels)/(investigating the total number of sheets × 9) × 100
Control efficiency (%)=(disease index after the front disease index × treatment region medicine of 1-(blank district medicine)/(the front disease index of disease index × treatment region medicine after blank district medicine)) × 100.
3.1.4 poisoning investigation method
After dispenser, whether 14d range estimation medicament has poisoning to crop continuously.
3.1.5 result of the test and analysis
Each effect of processing control wheat powdery mildew.
Table 2
As shown in Table 2 SYP-Z048 prothioconazoles with 3:1 ratio composite bactericide for wheat powdery mildew control successful higher than SYP-Z048 prothioconazoles single dose, bactericidal effect increases progressively with the increase of dosage.According to field range estimation, within the scope of test dose, plant growth is normal, and the poisoning phenomenon to wheat does not all appear in each treatment agent, illustrates that it is safe to wheat.Advise that the bactericide different from the mechanism of action mixes use to delay the drug-fast generation of germ.
3.2 field trial control gray molds of cucumber
3.2.1 test method
Test site, in the Pingdu herbary of Shandong, is cucumber for examination vegetables, and growing way is better, and test is established every mu and established contrast totally 10 processing.Every processing repeats 4 times, and random district group is arranged, 14 square metres of community areas.
3.2.2 control time and number of times
Before dispenser, after the 1st medicine after 7 days and the 2nd dispenser 7 days, 14 days, every community adopted 5 samplings of diagonal, every some investigation 2 strains, and totally 10 strains, investigation complete stool blade, by leaf classification investigation occurring degree, calculates disease and refers to and control efficiency.
Grade scale is as follows:
0 grade: anosis;
1 grade: lesion area accounts for below 5% of one-piece blade area;
3 grades: lesion area accounts for the 6%-15% of one-piece blade area;
5 grades: lesion area accounts for the 16%-25% of one-piece blade area;
7 grades: lesion area accounts for the 26%-50% of one-piece blade area;
9 grades: lesion area accounts for the more than 50% of one-piece blade area.
3.2.3 drug effect computational methods
The total number of sheets × 100 of sick leaf rate (%)=sick number of sheets/investigate
Disease index=∑ (the sick number of sheets × relative level numerical value at different levels)/(investigating the total number of sheets × 9) × 100
Control efficiency (%)=(disease index after the front disease index × treatment region medicine of 1-(blank district medicine)/(the front disease index of disease index × treatment region medicine after blank district medicine)) × 100.
3.2.4 poisoning investigation method
After dispenser, whether 14d range estimation medicament has poisoning to crop continuously.
3.2.5 result of the test and analysis
Each effect of processing control gray mold of cucumber.(table 3)
The Mixed Pharmacy of different proportion as can be seen from Table 3, tests by different consumptions, SYP-Z048 prothioconazoles with 3:1 ratio compound medicine after its right control be all better than contrasting medicament and bactericidal effect increases progressively with the increase of dosage.According to field range estimation, within the scope of test dose, plant growth is normal, and the poisoning phenomenon to cucumber does not all appear in each treatment agent, illustrates that it is safe to cucumber.Advise that the bactericide different from the mechanism of action mixes use to delay the drug-fast generation of germ.
In sum, the bactericidal composition that the present invention contains SYP-Z048 and prothioconazoles, has good control efficiency to wheat powdery mildew, gray mold of cucumber, and it is to target crop safety.Complex preparation has not only improved preventive effect, and has expanded fungicidal spectrum, widens the scope of application, reduces costs, and multiple diseases is played to the double effect of controlling of a medicine, alleviates manpower and materials, improves productivity effect.So the invention of this complex preparation is of great significance social tool with popularization.
Claims (4)
1. a bactericidal composition that contains SYP-Z048 and prothioconazoles, it is characterized in that: the active ingredient of this bactericidal composition is SYP-Z048 and prothioconazoles binary built, all the other are auxiliary element, and wherein the mass ratio of active ingredient SYP-Z048 and prothioconazoles is 1～50: 50～1.
2. bactericidal composition according to claim 1, is characterized in that: SYP-Z048 and the prothioconazoles gross weight in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations.
3. bactericidal composition according to claim 2, is characterized in that: SYP-Z048 and the prothioconazoles gross weight in preparation accounts for 5%～50% of the whole quality of the pharmaceutical preparations.
4. according to the bactericidal composition described in claim 1 or 2 or 3, it is characterized in that: the formulation of this bactericidal composition is missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations
.
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| CN1608467A (en) * | 2003-10-24 | 2005-04-27 | 沈阳化工研究院 | Bactericide composition containing SYP-Zo48 |
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