CN103719094B - A kind of bactericidal composition containing pyraoxystrobin Yu ferimzone - Google Patents
A kind of bactericidal composition containing pyraoxystrobin Yu ferimzone Download PDFInfo
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Abstract
The present invention relates to a kind of bactericidal composition containing pyraoxystrobin Yu ferimzone, its effective ingredient is that pyraoxystrobin compounds with ferimzone.Wherein pyraoxystrobin is 1～80: 80～1 with the mass ratio of ferimzone, in preparation, effective ingredient pyraoxystrobin accounts for the 1%～80% of whole preparation gross mass with the gross mass of ferimzone, remaining is for allowing the auxiliary element using and accepting in pesticide, the formulations of pesticide that bactericidal composition of the present invention can be made are the dosage forms such as cream, suspending agent, wettable powder, water dispersible granules, aqueous emulsion, microemulsion.It is mainly used in preventing and treating cucumber downy mildew, downy mildew of garpe, tomato late blight, cucumber anthracnose, powdery mildew of cucumber etc.; can effectively prevent and treat the rice tail spore on Oryza sativa L., the pathogen such as the compacted spore of rice length and Magnaporthe grisea. rice blast, rice leaf spot, stem rot and leaf blight etc. there are the highest protection and therapeutic effect.
Description
Technical field
The present invention relates to technical field of pesticide combination, be specifically related to a kind of Bactericidal composite containing pyraoxystrobin Yu ferimzone
Thing.
Background technology
Pyraoxystrobin is the strobilurin fungicide that Shenyang Chemical Engineering Inst develops.Pyraoxystrobin sterilizes
Spectrum is wide, bactericidal activity high, has the more prominent in vitro bactericidal activity of ratio, to cucumber downy mildew, downy mildew of garpe, tomato late blight,
Cucumber anthracnose, powdery mildew of cucumber have the prevention effect of excellence.Pyraoxystrobin chemical name is (E)-2-(2-((3-(4-chlorobenzene
Base)-1-methyl isophthalic acid H-pyrazoles-5-epoxide) methyl) phenyl)-3-methoxy-methyl acrylate.
Ferimzone (ferimzone) is by a kind of hydrazone series bactericidal agent of Wu Tian pharmaceutical industries company of Japan exploitation, can be effective
Rice tail spore on ground preventing and treating Oryza sativa L., the pathogen such as the compacted spore of rice length and Magnaporthe grisea. to rice blast, rice leaf spot, stem rot and leaf
Rots etc. have the highest protection and therapeutic effect.The chemical name of ferimzone is 2 '-methyl acetanilide-4,6 dimethyl pyrimidine-2-
Base hydrazone, there are two kinds of configurations of cis and trans in it, its cis-product is target product ferimzone, and its chemical structural formula is
Use the maximally efficient means that chemical agent is controlling plant diseases.But use single long-term continuous high dose
Chemical bactericide, easily cause the problems such as the residual of medicament, environmental pollution and resistance to Drug resistance fungus development.Reasonably chemistry
Bactericide compounded or mixture has an expansion fungicidal spectrum, improve prevention effect, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning,
Reducing residual, delay the actively feature such as Antifungal resistance and drug-fast generation and development, bactericide compounded is to solve above-mentioned asking
One of maximally efficient method of topic.Develop new product antibacterial price constantly rises, and by contrast, develop and study efficiently,
Low toxicity, low-residual compounding with mixture has small investment, the lead time is short and is paid attention to both at home and abroad, increasing develops one after another
Dynamics.We filter out pyraoxystrobin and compound with ferimzone on the basis of lab screening and field test, have significantly
Potentiation.And the bactericidal composition compounded and the application about pyraoxystrobin with ferimzone there is no people at present and reported.
Summary of the invention
Based on case above, present invention aim at providing a kind of new and effective pesticide sterilizing composite.It is mainly used in
Preventing and treating cucumber downy mildew, downy mildew of garpe, tomato late blight, cucumber anthracnose, powdery mildew of cucumber etc., can prevent and treat Oryza sativa L. effectively
On rice tail spore, the pathogen such as the compacted spore of rice length and Magnaporthe grisea. rice blast, rice leaf spot, stem rot and leaf blight etc. are had very
High protection and therapeutic effect.
Technical scheme of the present invention is realized by following measures:
A kind of bactericidal composition containing pyraoxystrobin Yu ferimzone, the effective ingredient pyraoxystrobin of this bactericidal composition and phonetic bacterium
Hydrazone two yuan compounds, and remaining is auxiliary element.Effective ingredient pyraoxystrobin and the mass ratio of ferimzone in wherein said Pesticidal combination
Being 1～80: 80～1, described bactericidal composition of the present invention is through the mass ratio of toxicity test experimental verification, pyraoxystrobin and ferimzone
When being 1～40: 40～1, synergistic effect is preferable.
The formulations of pesticide that described bactericidal composition of the present invention can be prepared are cream, suspending agent, wettable powder, moisture
The dosage forms such as shot agent, aqueous emulsion, microemulsion.Wherein effective ingredient pyraoxystrobin and ferimzone gross mass in the formulation account for whole system
The 1%～80% of agent quality, when wherein accounting for 5%-50%, toxicity and residual reach preferably to balance, and cost is relatively low.
The specific embodiments of the formulations of pesticide that bactericidal composition of the present invention is configured to is as follows:
Described bactericidal composition is cream preparation, and the mass fraction of component is:
Pyraoxystrobin 1～80 parts
Ferimzone 1～80 parts
Conventional emulsifier 10～30 parts
Conventional solvents 20～50 parts
Conventional synergist 1～5 parts.
The concrete production stage of this cream preparation is first to add in solvent the most molten by effective ingredient pyraoxystrobin with ferimzone
Add emulsifying agent after solution, synergist becomes the oily liquids of transparent and homogeneous after stirring, fill, i.e. can be made into present invention combination
The cream preparation of thing.
Described bactericidal composition is suspending agent, and the mass fraction of component is:
Pyraoxystrobin 1～80 parts
Ferimzone 1～80 parts
Dispersant 5～20 parts
Antifreezing agent 1～5 parts
Thickening agent 0.1～2 parts
Defoamer 0.1～0.8 part
Penetrating agent 0～10 parts
PH value regulator 0.1～5 parts
Water surplus.
The concrete production stage of this suspending agent is for first to mix other auxiliary agents, through high speed shear mix homogeneously, adds effectively
Composition pyraoxystrobin and ferimzone, abrading-ball 2～3 hours in ball crusher, make a diameter all at below 5mm, i.e. can be made into the present invention
The aqueous suspension formulations of compositions.
Described bactericidal composition is wettable powder, and the mass fraction of component is:
Pyraoxystrobin 1～80 parts
Ferimzone 1～80 parts
Dispersant 3～10 parts
Wetting agent 1～5 parts
Filler surplus.
The concrete production stage of this wettable powder is: and divide effective ingredient pyraoxystrobin and ferimzone by above-mentioned formula
Powder, wetting agent and filler mixing, uniform stirring in stirred tank, at mix homogeneously after jet mill, i.e. can be made into this
The wettable powder of inventive composition.
Described bactericidal composition is water dispersible granules, and the mass fraction of component is:
Pyraoxystrobin 1～80 parts
Ferimzone 1～80 parts
Dispersant 3～10 parts
Wetting agent 1～10 parts
Disintegrating agent 1～5 parts
Filler surplus.
The concrete production stage of this water dispersible granules is: by above-mentioned formula by effective ingredient pyraoxystrobin and ferimzone and dispersion
Agent, wetting agent, disintegrating agent and filler mix homogeneously, pulverize with micro jet, through mediating, is subsequently adding fluid bed and makes
Grain drying machine in carry out pelletize, be dried, screening after through sample analysis, i.e. 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:
Pyraoxystrobin 1～80 parts
Ferimzone 1～80 parts
Emulsifying agent 3～30 parts
Solvent 5～15 parts
Stabilizer 2～15 parts
Antifreezing agent 1～5 parts
Defoamer 0.1～8 parts
Thickening agent 0.2～2 parts
Water surplus
The concrete production stage of this aqueous emulsion is: first pyraoxystrobin be added in ferimzone, solvent and emulsifying agent, cosolvent
Together, make to be dissolved into uniform oil phase；By part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes
Uniformly aqueous phase；While high-speed stirred, oil phase is added aqueous phase in a kettle., slowly adding water until reaching phase inversion point, opening
Open cutter 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 make
The aqueous emulsion of inventive composition.
The auxiliary agent used in the most above-described bactericidal composition includes emulsifying agent, solvent, wetting agent, dispersant, prevents
Freeze agent, thickening agent, disintegrating agent, defoamer, filler etc., and other are of value to, and effective ingredient is stable in the formulation and drug effect plays
Known substance (be in pesticide conventional or allow the composition used), concrete composition and consumption, according to recipe requirements, pass through
Routine test determines.
Described emulsifying agent is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulphur
Base succinate, styrylphenol polyoxyethylene ether, NPE, castor oil polyoxyethylene ether, fatty acid polyglycol
Oxyethylene group ester, any one of polyoxyethylene aliphatic alcohol ether or more than one any mixture than composition.
Described solvent is dimethylbenzene or biodiesel, toluene, diesel oil, methanol, ethanol, n-butyl alcohol, isopropanol, Lignum Pini Nodi
Oil, solvent naphtha, dimethylformamide, dimethyl sulfoxide, one or more in water equal solvent are arbitrarily than the mixing of composition
Thing.
Described dispersant is selected from polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene methyl ether condensation substance sulphuric acid
Salt, alkylsulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, fat
Amine polyoxyethylene ether, one or more in fatty acid glyceride polyoxyethylene ether.
Described wetting agent is selected from sodium lauryl sulphate, calcium dodecyl benzene sulfonate, Nekal BX, moistens penetrating agent F,
Alkylbenzenesulfonate polyoxyethylene triphen phosphenylic acid salt dimly, spaonin powder, Bombyx mori L., one or more in Fructus Sapindi Mukouossi powder.
Described disintegrating agent is selected from bentonite, and carbamide, ammonium sulfate, aluminum chloride, citric acid, succinic acid, in sodium bicarbonate
One or more.
Described thickening agent be selected from xanthan gum, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate,
In polyvinyl alcohol one or more.
Described stabilizer is selected from sodium citrate, the one in resorcinol.
Described antifreezing agent is selected from ethylene glycol, propylene glycol, one or more in glycerol.
Described defoamer is selected from silicone oil, silicone compound, C10-20Saturated fat acid compounds, C8-10Fatty alcohol
One or more.
Described filler is selected from Kaolin, and kieselguhr, bentonite, attapulgite, white carbon, starch, in precipitated calcium carbonate
One or more.
Bactericidal composition of the present invention has obvious potentiation with pyraoxystrobin and the ferimzone composite bactericide as effective ingredient
Effect, delay the drug-fast generation in key, and reduce into product cost and use cost, can be used for the improvement of resistance disease.Main
It is used for preventing and treating cucumber downy mildew, downy mildew of garpe, tomato late blight, cucumber anthracnose, powdery mildew of cucumber etc., can effectively prevent
Harness the river the pathogen such as the rice tail spore on rice, the compacted spore of rice length and Magnaporthe grisea. to rice blast, rice leaf spot, stem rot and leaf blight
Etc. having the highest protection and therapeutic effect.This invention can significantly make up pesticide pyraoxystrobin and leaven dough not in quick-acting with ferimzone
Foot, accomplishes that quick-acting and lasting effect are taken into account, and remains low, easily decompose, more environmentally-friendly.
Detailed description of the invention
For making technical scheme, purpose and advantage are clearer, present invention specific examples below
Illustrate, but the present invention is not limited to these examples.The effect experimental of the present invention uses indoor biometrics and field test phase
In conjunction with mode, if no special instructions, ratio mentioned below is all mass fraction ratio.
Embodiment: pyraoxystrobin is tested with ferimzone different ratio co-toxicity.
1.1 reagent agent
The 95.5% former medicine of pyraoxystrobin, the 99% former medicine of ferimzone, above-mentioned former medicine is by Hailir Pharmaceutical Group Co., Ltd.
Research and development centre provides.
1.2 test targets
From Shandong Pingdu never executed the pyraoxystrobin Fructus Cucumidis sativi with ferimzone and with type potted plant gather and separate.Fructus Cucumidis sativi product
Kind: middle peasant No. 13.
1.3 test method
1.3.1 medicament preparation
First with the former medicine of acetone solution, according to the result of preliminary experiment, two appropriate former medicines are made into 5 different ratio, then use
It is stand-by that each process is diluted to 5 Concentraton gradient by acetone respectively, and using clear water as comparison.
1.3.2 chemicals treatment
By the 95.5% former medicine of pyraoxystrobin, the 99% former medicinal acetone of ferimzone is solvent dilution, is made into 10000ug/ml mother solution, in
Save backup under the conditions of 4 DEG C.
Fitting in seedling-growing container by No. 13 residences of infection cucumber variety middle peasant, be placed in greenhouse cultivation, plant length is to three to four
Leaf after date, gathers the blade of identical leaf age, for mensuration and the cultivation of cucumber downy mildew.
Cucumber downy mildew uses plants method at 20 DEG C, cultivates, within every 30 days, turn generation under conditions of 12h alternation of light and darkness
Cultivate.With the conidium on sterilized water eluting incidence of leaf during inoculation, being configured to concentration is 1 × 106 The spore of individual/ml
Suspension.
1.3.3 for examination strain sensitivity testing
Leaf dish moisturizing method is used to carry out toxicity test.First the blade of collection is prepared as the leaf dish of a diameter of 1.5cm, test
With the process of not adding medicine as blank, soaking after terminating, leaf faces up and is placed in the suction of same concentrations medicinal liquid moistening
On water paper, the medicinal liquid on leaf dish being blotted, the spore suspension 10L configured is inoculated in leaf dish central authorities, room temperature places 5min
After, it is placed in 20 DEG C, cultivates under conditions of 12h alternation of light and darkness, measure the onset area on leaf dish after 10d, calculate EC50.
The percentage rate accounting for leaf disc area according to lesion area divides sick level
0 grade: anosis；
1 grade: sorus area accounts for less than the 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 more than the 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.Toxicity test knot according to single dose
Really, by effective ingredient be 24% mass fraction than pyraoxystrobin: ferimzone is 8: 16,10: 14,12: 12,14:10,16:8.
Use said method carry out toxicity test, if comparison mortality rate < 5%, do not correct, comparison mortality rate 5%-20% it
Between, be corrected by formula 2, compare mortality rate 20%, test need to be reformed.
It is independent variable x with the logarithm value of drug concentration (mg/L), with the probability value of corrected mortality for dependent variable y, respectively
Set up virulence regression equation formula, use DPS computed in software single dose and the LC of each proportioning mixture50Poison altogether is calculated according to the abundant method of Sun Yun
Coefficient (CTC).Co-toxicity coefficient CTC, computing formula is as follows: (with pyraoxystrobin as standard agent, its toxicity index is 100):
The LC of toxicity index (the TI)=pyraoxystrobin of ferimzone50The LC of ferimzone50×100
The LC of true toxicity index (the ATI)=pyraoxystrobin of M50The LC of/M50×100
TI × P ferimzone of the TI × P pyraoxystrobin+ferimzone of theoretical toxicity index (the TTI)=pyraoxystrobin of M
TTI × 100 of the ATI/M of co-toxicity coefficient (the CTC)=M of M
In formula:
M is pyraoxystrobin and the mixture of ferimzone different ratio
P pyraoxystrobin is the ratio that pyraoxystrobin is shared in mixture
P ferimzone is the ratio that ferimzone is shared in mixture
2.1 toxicity test results
Table 1 pyraoxystrobin and the ferimzone toxicity test to cucumber downy mildew
As can be seen from the table, in different ratio, it is 8: 16,10: 14 in effective ingredient ratio, 12: 12,14:10,
When 16:8 dilutes respectively, all showing stronger potentiation, its co-toxicity coefficient is all higher than 120, shows certain potentiation and makees
With, wherein pyraoxystrobin is the most obvious with the potentiation that mass ratio is 12:12 of ferimzone, and co-toxicity coefficient is 172.34.It is right to advise
Suitable proportion about 12:12 mixture preparation carries out further field control effectiveness test, to evaluate its field practical application effect.
3, field test preventing and treating cucumber downy mildew, the experimental result of rice leaf spot
3.1 field test preventing and treating cucumber downy mildews
3.1.1 test method
Test on Shandong Pingdu City Fructus Cucumidis sativi ground, 4 points of every community investigation, every some investigation 2 strains, record morbidity journey by staging
Degree, grade scale is as follows:
0 grade: anosis；
1 grade: sorus area accounts for less than the 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 more than the 50% of whole leaf area；
3.1.2 control time and number of times
Test investigation 4 times altogether, investigate after 3 days, 7 days and medicine after radix investigation, medicine before medicine for 15 days.
3.1.3 drug effect computational methods
Sick leaf rate (%)=sick number of sheets/investigate the total number of sheets × 100
Disease index=∑ (the sick number of sheets × relative level numerical value at different levels)/(investigating the total number of sheets × 9) × 100
Prevention effect (%)=(disease index after disease index × treatment region medicine before 1-(blank district medicine)/(blank
Disease index before disease index × treatment region medicine after district's medicine)) × 100
3.1.4 poisoning investigation method
After dispenser, whether continuous 7d range estimation medicament has poisoning to crop.
3.1.5 result of the test and analysis
Each effect (table 2) processing preventing and treating cucumber downy mildew
Table 2 respectively processes the effect of preventing and treating cucumber downy mildew
The Mixed Pharmacy of different proportion as can be seen from Table 2, is tested by different consumptions, and after medicine, it is to Cucumis satiuus L.
The preventing and treating of mildew is superior to compare medicament, and after medicine, the bactericidal effect of 15 days is respectively 90.56,91.63,92.46.Bactericidal effect
It is incremented by with the increase of dosage.Estimating according to field, in the range of test dose, plant growth is normal, and each treatment agent is the most not
Poisoning phenomenon to Fructus Cucumidis sativi occurs, illustrates that it is safe to Fructus Cucumidis sativi.Advise that the antibacterial different from the mechanism of action is used in mixed way
To delay the drug-fast generation of pathogenic bacteria.
4.1 field test preventing and treating Rice Leaf pintas
4.1.1 test method
Trial crops is Single Late Rice, and experimental cultivar is " Jin Feng ";Controlling object is that Hemintho-sporum leaf spot of rice plants test is located at
Ground, canal the south, district, real plantation portion 8, Oryza sativa L. is in sowing on June 1, and every processing area is 1 mu, does not set repetition, respectively processes sowing quantity, cultivation
Training management measure is unified.Administration time, in the rice tillering jointing stage (July 31), observes blade.
Every leaf is accounted for the percentage rate classification of leaf area by scab, records total number of sheets, the sick number of sheets at different levels, calculates blade morbidity
Rate, disease index, refer to compare with compareing disease, calculates relative control effect.
Rice Leaf pinta mutual affection grade standard (in units of blade)
0 grade: without scab；
1 grade: scab disease area accounts for whole leaf area less than 5%；
3 grades: scab disease area accounts for whole leaf area 6%～10%；
5 grades: scab disease area accounts for whole leaf area 11%～25%；
7 grades: scab disease area accounts for whole leaf area 26%～50%；
9 grades: scab disease area accounts for whole leaf area more than 50%.
4.1.2 control time and number of times
Test investigation 4 times altogether, i.e. disease index investigation before medicine, 5 days, 13 days and preventive effect investigation in 18 days after the 1st medicine.
4.1.3 drug effect computational methods
Sick leaf rate (%)=sick number of sheets/investigate the total number of sheets × 100
Disease index=∑ (the sick number of sheets × relative level numerical value at different levels)/(investigating the total number of sheets × 9) × 100
Prevention effect (%)=(disease index after disease index × treatment region medicine before 1-(blank district medicine)/(blank
Disease index before disease index × treatment region medicine after district's medicine)) × 100
4.1.4 poisoning investigation method
After dispenser, whether continuous 7d range estimation medicament has poisoning to crop.
4.1.5 result of the test and analysis
Each effect processing preventing and treating Rice Leaf pinta is shown in Table 3
Table 3 respectively processes the effect of preventing and treating Rice Leaf pinta
Interpretation of result: as can be seen from Table 2, the mixture combination preventing and treating Oryza sativa L. tikka of 24% pyraoxystrobin ferimzone WP (12:12)
Sick effect is notable, and the effect of complex preparation is significantly better than two kinds of single doses, and its quick-acting and lasting effect are relatively good, especially with holding effect
Property is the most prominent.Complex preparation effect under prevention effect is significantly better than low concentration consumption under the consumption of high concentration.According to field
Between estimate, in the range of test dose, plant growth is normal, and the poisoning phenomenon to Oryza sativa L., explanation does not all occur in each treatment agent
It is safe to Oryza sativa L..This complex preparation lasting effect highlights, and it is promoted and is of great significance society's tool.
In sum, the present invention contains the Bactericidal composite of pyraoxystrobin and ferimzone, to cucumber downy mildew and Rice Leaf pinta
There is good prevention effect, and it is to Target crops safety.Complex preparation not only increases preventive effect, and expands sterilization
Spectrum, so this compounded combination has being of great significance in production practices.
Claims (5)
1. the bactericidal composition containing pyraoxystrobin with ferimzone, it is characterised in that: the effective ingredient of this bactericidal composition is
Pyraoxystrobin and ferimzone two yuan compound, and wherein effective ingredient pyraoxystrobin is 1～80: 80～1 with the mass ratio of ferimzone.
Bactericidal composition the most according to claim 1, it is characterised in that: the quality of pyraoxystrobin and ferimzone preferably ratio is for 1
～40: 40～1.
Bactericidal composition the most according to claim 1, it is characterised in that: pyraoxystrobin and ferimzone account for the whole quality of the pharmaceutical preparations
1%～80%.
Bactericidal composition the most according to claim 3, it is characterised in that: pyraoxystrobin and ferimzone account for the whole quality of the pharmaceutical preparations
5%～50%.
5. according to the bactericidal composition described in claim 1 or 2 or 3 or 4, it is characterised in that: this bactericidal composition can be prepared
The formulations of pesticide become are cream, suspending agent, wettable powder, water dispersible granules, aqueous emulsion, microemulsion.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657524A (en) * | 2004-02-20 | 2005-08-24 | 沈阳化工研究院 | Substituted azole compounds and their preparation and application |
| CN101087523A (en) * | 2004-12-23 | 2007-12-12 | 巴斯福股份公司 | Fungicidal mixtures |
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2012
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657524A (en) * | 2004-02-20 | 2005-08-24 | 沈阳化工研究院 | Substituted azole compounds and their preparation and application |
| CN101087523A (en) * | 2004-12-23 | 2007-12-12 | 巴斯福股份公司 | Fungicidal mixtures |
Non-Patent Citations (1)
| Title |
|---|
| 杀菌剂唑菌酯的创制经纬;李淼等;《农药》;20110310;第50卷(第3期);173 * |
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