CN103598190A - Sterilization composition containing thifluzamide and boscalid - Google Patents
Sterilization composition containing thifluzamide and boscalid Download PDFInfo
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- CN103598190A CN103598190A CN201310503063.4A CN201310503063A CN103598190A CN 103598190 A CN103598190 A CN 103598190A CN 201310503063 A CN201310503063 A CN 201310503063A CN 103598190 A CN103598190 A CN 103598190A
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- thifluzamide
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- WOSNCVAPUOFXEH-UHFFFAOYSA-N thifluzamide Chemical compound S1C(C)=NC(C(F)(F)F)=C1C(=O)NC1=C(Br)C=C(OC(F)(F)F)C=C1Br WOSNCVAPUOFXEH-UHFFFAOYSA-N 0.000 title claims abstract description 53
- WYEMLYFITZORAB-UHFFFAOYSA-N boscalid Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1NC(=O)C1=CC=CN=C1Cl WYEMLYFITZORAB-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000005740 Boscalid Substances 0.000 title claims abstract description 49
- 229940118790 boscalid Drugs 0.000 title claims abstract description 49
- 239000000203 mixture Substances 0.000 title claims abstract description 40
- 230000001954 sterilising effect Effects 0.000 title abstract description 13
- 238000004659 sterilization and disinfection Methods 0.000 title abstract description 12
- 208000031888 Mycoses Diseases 0.000 claims abstract description 6
- 230000000844 anti-bacterial effect Effects 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 6
- 239000000375 suspending agent Substances 0.000 claims description 6
- 238000009736 wetting Methods 0.000 claims description 6
- 239000004480 active ingredient Substances 0.000 claims description 5
- 238000009472 formulation Methods 0.000 claims description 5
- 239000004562 water dispersible granule Substances 0.000 claims description 5
- 239000003905 agrochemical Substances 0.000 claims description 4
- 239000002552 dosage form Substances 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000003814 drug Substances 0.000 abstract description 19
- 244000052769 pathogen Species 0.000 abstract description 7
- 229940079593 drug Drugs 0.000 abstract description 6
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- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 231100000053 low toxicity Toxicity 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 206010059866 Drug resistance Diseases 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 244000144972 livestock Species 0.000 abstract 1
- 230000003449 preventive effect Effects 0.000 description 17
- 240000002791 Brassica napus Species 0.000 description 13
- 235000006008 Brassica napus var napus Nutrition 0.000 description 12
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- 201000010099 disease Diseases 0.000 description 10
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 9
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- 239000003899 bactericide agent Substances 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 241001530056 Athelia rolfsii Species 0.000 description 3
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- 241000196324 Embryophyta Species 0.000 description 3
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 244000061176 Nicotiana tabacum Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 240000003768 Solanum lycopersicum Species 0.000 description 3
- 230000009036 growth inhibition Effects 0.000 description 3
- 230000010534 mechanism of action Effects 0.000 description 3
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 241000221696 Sclerotinia sclerotiorum Species 0.000 description 2
- 102000019259 Succinate Dehydrogenase Human genes 0.000 description 2
- 108010012901 Succinate Dehydrogenase Proteins 0.000 description 2
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- 239000007788 liquid Substances 0.000 description 2
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- 229940124561 microbicide Drugs 0.000 description 2
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- 241000221198 Basidiomycota Species 0.000 description 1
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- 240000008574 Capsicum frutescens Species 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000221785 Erysiphales Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000016623 Fragaria vesca Nutrition 0.000 description 1
- 240000009088 Fragaria x ananassa Species 0.000 description 1
- 235000011363 Fragaria x ananassa Nutrition 0.000 description 1
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 241001361634 Rhizoctonia Species 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
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- SYHPANJAVIEQQL-UHFFFAOYSA-N dicarboxy carbonate Chemical compound OC(=O)OC(=O)OC(O)=O SYHPANJAVIEQQL-UHFFFAOYSA-N 0.000 description 1
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- 231100000820 toxicity test Toxicity 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A disclosed sterilization composition containing thifluzamide and boscalid comprises an active component composed of thifluzamide and boscalid, wherein a proper amount of an agricultural sterilization agent auxiliary agent is added, and the sterilization composition is prepared into common agricultural sterilization agent forms. The sterilization composition provided by the invention has relatively high control effect on crop fungal diseases, thifluzamide and boscalid have obvious synergic effect; the use amount of the sterilization composition can be reduced, the sterilization composition is capable of effectively reducing ecological destroy and environmental pollution and improving crop output and quality; thifluzamide and boscalid in the sterilization composition are both low toxicity, and is safe to people, livestock, beneficial organisms and environment; and the sterilization composition can delay the drug resistance of pathogens to single drug.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of microbicide compositions.In particular, relate to a kind of bactericidal composition that contains thifluzamide and Boscalid.
Background technology
The southern blight being caused by Sclerotium rolfsii (Sclerotium rolfsii) is worldwide important disease, and the host plant of this pathogen is over 500 kinds.Some main vegetables, all can cause serious disease on as eggplant, tomato, capsicum, strawberry etc., some economic crops, also can cause large-area crop downright bad on as peanut, tobacco, have a strong impact on output, economic loss is huge.The sclerotinia rot of colza being caused by sclerotinite (Sclerotinia sclerotiorum) is a kind of very harmful disease on rape is produced, in the world, each rape producing region occurs all very serious, the all rapes of China producing region occurs all very serious, with the Yangtze river basin and the southeastern coastal areas, occur the most serious, incidence of disease 10%-80%, has a strong impact on output and rapeseed quality.At present, the disease these two kinds of cause of diseases being caused mainly still be take chemical control as main.Yet the use of long-term single medicament and irrational insecticide-applying way, make pathogen be easy to develop immunity to drugs, cause drug effect decline, disease outburst, and then strengthen medication, form vicious circle, strengthen drug cost, aggravation environmental pollution, this is also a great problem of chemical control.The agricultural chemicals of the different mechanisms of action is rationally composite is that customer service pesticide resistance occurs and the effective measures that develop, and the mechanism of action is close but preventive effect significantly strengthens, prevention and treatment range expands agricultural chemicals carries out the rationally composite dosage that also can improve performance, reduce unit are, improve control efficiency.
Thifluzamide is a kind of new thiazole carboxy-N-benzamides bactericide, and former medicine is white to light brown powdery solid, 177.9～178.6 ℃ of fusing points, and in the time of 20 ℃, in water, solvability is 1.6mg/L, distribution coefficient 4.1, pH value is to stablize for 5～9 o'clock.Thifluzamide belongs to low toxicity bactericide, and former medicine rat acute is oral and rabbit is acute through skin LD50>5000mg/kg, without teratogenesis, mutagenesis, carcinogenesis.Thifluzamide carrys out the tricarbonic acid cycle of Antifungi by suppressing succinate dehydrogenase, due to fluorine-containing, its its competitiveness in biochemical pathway is very strong, once be combined with substrate or enzyme, is just difficult for recovering.Thifluzamide has broad-spectrum sterilization activity, can prevent and treat plurality of plant diseases, and particularly to basidiomycetes, the caused disease of Rhizoctonia fungi has special efficacy.There is strong interior conductivity and the long lasting effect of inhaling, be applicable to the multiple application methods such as foliar spray, seed treatment and soil treatment.
Boscalid is a kind of Novel tobacco amide-type systemic fungicide, the tasteless crystal of sterling white, 142.8 ℃～143.8 ℃ of fusing points.In 20 ℃ of water, solvability is 4.6mg/L, and the solvability in other solvents (20 ℃, g/L): normal heptane <10, methyl alcohol: 40～50, acetone 160～200.Boscalid is at room temperature stablized in air, can place 14d, not photodissociation in water for 54 ℃.Thifluzamide belongs to low toxicity bactericide, the oral LD50 > of former medicine rat acute 5000mg/kg, and rat (male/female) is acute through skin LD50 > 2000mg/kg.The mechanism of action of Boscalid is to suppress succinate dehydrogenase equally, but it is mainly by suppressing the protein complex in electron transport chain, i.e. Complex II, thus stop phytopathogen production capacity, Antifungi growth.While using, liquid absorbs and to permeate by blade face through plant, and evaporation and the mobile of water by moisture in leaf make liquid transmission be diffused into blade end and leaf margin position, and with the effect of pathogen intracellular plastochondria.Boscalid fungicidal spectrum is wider, almost all types of fungal diseases are had to activity, very effective to preventing and treating powdery mildew, gray mold, stalk break and various rots etc., and the resistance bacterium to other medicaments is also effective, is mainly used in comprising the control of the diseases such as rape, grape, fruit tree, vegetables and field crop.
Summary of the invention
The invention provides a kind of bactericidal composition containing thifluzamide and Boscalid, there is bactericidal activity high, delay pathogen pesticide resistance and produce and develop, and dosage total in unit are is declined, economical, efficient, environmental protection.
The present invention possesses different structure types and the bactericide of discrepant mechanism of action by two classes, be that thiazole amide bactericide thifluzamide and Novel tobacco acid amide fungicides Boscalid are combined, and be processed into and produce easy-to-use preparation, biologically active is high, dosage total in unit are declines, and has reduced dispenser cost, delays pathogen pesticide resistance and produces and develop, extend the service life of each component in bactericidal composition, thereby realized goal of the invention economic, efficient, environmental protection.
For realizing object of the present invention, its technical solution adopting is:
A bactericidal composition containing thifluzamide and Boscalid, is characterized in that: described composition contains thifluzamide and two kinds of active ingredients of Boscalid, and the mass ratio of described thifluzamide and Boscalid is 1:40～40:1.
The described bactericidal composition containing thifluzamide and Boscalid, is characterized in that: the mass ratio of described thifluzamide and Boscalid is: 1:20～20:1.
The described bactericidal composition containing thifluzamide and Boscalid, is characterized in that: described combination dosage form is any one formulation allowing on agricultural chemicals.
The described bactericidal composition containing thifluzamide and Boscalid, is characterized in that: described combination dosage form is wetting powder, water-dispersible granules, suspending agent, aqueous emulsion or missible oil.
The described bactericidal composition containing thifluzamide and Boscalid, is characterized in that: the mass percent of the active ingredient that described thifluzamide and Boscalid form in formulation is 30%～60%.The mass percent of the active ingredient that most preferably described thifluzamide and Boscalid form in formulation is 40%～55%.
The application of the described bactericidal composition containing thifluzamide and Boscalid in control crop fungal disease.
Beneficial effect of the present invention: (1) is compared with single dose, this microbicide compositions has higher control efficiency to crop fungal disease, has notable synergistic effect between two components; (2) can reduce dosage, effectively reduce environmental pollution and residue of pesticide, reduce use cost, and can improve crop yield and quality; (3) in the present invention, thifluzamide and Boscalid all belong to the toxicity such as low, and to people and animals, beneficial organism, Environmental security; Can delay the pesticide resistance of germ to single medicament.
Sterilization idiocratic to thifluzamide and Boscalid is done careful analysis.
First measure the EC of thifluzamide and Boscalid two single compounds (hereinafter to be referred as medicament)
50(drug safety index), according to the EC of two single medicaments
50by Wadley method, set the portfolio ratio of two medicaments, and according to Wadley coefficient of synergism SR value.
Test objective thing is to cause the Sclerotium rolfsii of eggplant southern blight and the sclerotinite that causes sclerotinia rot of colza, but does not limit so.Get thifluzamide and Boscalid, test adopts mycelial growth determination method, by different disposal, make pastille medium, select 90mm culture dish, each processes 4 repetitions, at preculture colony edge, with the card punch of sterilizing, produce the mycelia piece of 5mm diameter, move on to respectively on the different culture medium flat plate of content of dispersion, when the blank colony growth of pastille does not account for whole culture dish 2/3 left and right, adopt right-angled intersection method to measure colony diameter, measure colony diameter (mm), by following formula, calculate growth inhibition ratio:
Contrast colony diameter-5, mycelial growth inhibition rate %=(1-chemicals treatment colony diameter-5/) * 100%
Mycelial growth inhibition rate is converted into and suppresses probit value (Y), drug concentration is converted into concentration logarithm (X), by concentration logarithm, be that abscissa, probit value are that ordinate is made toxicity regression straight line, try to achieve thifluzamide and Boscalid single dose and the virulence regression equation of mixture to germ thereof, and calculate EC
50value and correlation coefficient r value.
According to the interaction of Wadley method evaluation mixture, computing formula is as follows:
EC
50 (theoretical values)=(a+b)/(a/EC
50a+ b/EC
50b), SR=EC
50 (theoretical values)/ EC
50 (real values).
Wherein a, b are each component content ratio in mixture, the effect being mixed with the analysis of SR value.SR≤0.5, two kinds of medicaments antagonism that has been mixed; SR=0.5～1.5, two kinds of medicaments addition that has been mixed; SR >=1.5, two kinds of medicaments synergistic effect that has been mixed.
Table 1 thifluzamide and Boscalid single dose and mixture thereof are to the former bacterium power of eggplant southern blight measurement result
As can be seen from the above table, the fungistatic effect of the thifluzamide of different proportion and Boscalid composition dialogue thin,tough silk pathogen is different, and experimental result shows that it has synergistic effect than being listed in 15:1 in 1:1, and wherein synergy is 15:1 and 10:1 significantly.
Table 2 thifluzamide and Boscalid single dose and mixture thereof are to sclerotinia rot of colza toxicity test result
As can be seen from the above table, the thifluzamide of different proportion and Boscalid composition are different to the fungistatic effect of the former bacterium of sclerotinia rot of colza, and experimental result shows that it has synergistic effect than being listed in 10:1 in 1:15, and wherein maximum synergy is 1:1
The present invention has higher control efficiency to crop fungal disease, has notable synergistic effect between two components; Can reduce dosage, effectively reduce ecological disruption and environmental pollution, and can improve crop yield and quality; In the present invention, thifluzamide and Boscalid all belong to the toxicity such as low, and to people and animals, beneficial organism, Environmental security; Can delay the pesticide resistance of germ to single medicament.
Embodiment:
Below in conjunction with embodiment, to further instruction of the present invention, but the present invention is not limited thereto.
Embodiment 1
48% thifluzamide Boscalid suspending agent
Formula:
Preparation method: according to formula, above component is weighed in proportion, add ball mill ball milling 30 minutes, filter, suction dispersion tank high speed shear is fully ground by sand mill for 3 minutes, controls solid constituent particle diameter in 2 microns, grinding stirs after finishing, and obtains suspending agent product.Every mu of consumption 30g control eggplant southern blight, preventive effect reaches 89.58%; Every mu of consumption 40g control sclerotinia rot of colza, preventive effect reaches 85.23%.
Embodiment 2
44% thifluzamide Boscalid suspending agent
Formula:
Preparation method, with embodiment 1.Every mu of consumption 35g control tomato southern blight, preventive effect reaches 88.37%; Every mu of consumption 40g control sclerotinia rot of colza, preventive effect reaches 89.82%.
Embodiment 3
50% thifluzamide Boscalid suspending agent
Formula:
Preparation method, with embodiment 1.Every mu of consumption 40g control seedling blight of red pepper, preventive effect reaches 90.37%; Every mu of consumption 30g control sclerotinia rot of colza, preventive effect reaches 92.57%.
Embodiment 4
Prepare 33% thifluzamide Boscalid wetting powder
Formula:
Preparation method: add mixer to mix laggard row air-flow crushing by formula rate above component, add a small amount of purified water to stir after having pulverized, get final product to obtain wetting powder product after oven dry.Every mu of consumption 50g control eggplant southern blight, preventive effect reaches 85.62%; Every mu of consumption 50g control sclerotinia rot of colza, preventive effect reaches 87.95%.
Embodiment 5
60% thifluzamide Boscalid wetting powder
Formula
Preparation method: with embodiment 4.Every mu of consumption 40g control eggplant southern blight, preventive effect reaches 94.35%; Every mu of consumption 40g control sclerotinia rot of colza, preventive effect reaches 92.17%.
Embodiment 6
40% thifluzamide Boscalid wetting powder
Formula:
Preparation method: with embodiment 4.Every mu of consumption 50g control tomato southern blight, preventive effect reaches 90.47%; Every mu of consumption 50g control sclerotinia rot of colza, preventive effect reaches 86.05%.
Embodiment 7
30% thifluzamide Boscalid water dispersible granules
Formula:
Preparation method: add mixer to mix laggard row air-flow crushing by formula rate above component, add a small amount of purified water to stir after having pulverized, extruder grain, gets final product to obtain water dispersible granules product after oven dry.Every mu of consumption 60g control eggplant southern blight, preventive effect reaches 86.62%; Every mu of consumption 60g control sclerotinia rot of colza, preventive effect reaches 85.59%.
Embodiment 833% thifluzamide Boscalid water dispersible granules
Preparation method: with embodiment 7.Every mu of consumption 70g control eggplant southern blight, preventive effect reaches 93.57%; Every mu of consumption 70g control sclerotinia rot of colza, preventive effect reaches 90.53%.
What more than enumerate is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, can also have a lot of distortion.Those of ordinary skill in the art can, from interior all distortion with directly deriving or associate disclosed by the invention, all think protection scope of the present invention.
Claims (6)
1. containing a bactericidal composition for thifluzamide and Boscalid, it is characterized in that: described composition contains thifluzamide and two kinds of active ingredients of Boscalid, and the mass ratio of described thifluzamide and Boscalid is 1:40～40:1.
2. the bactericidal composition containing thifluzamide and Boscalid according to claim 1, is characterized in that: the mass ratio of described thifluzamide and Boscalid is: 1:20～20:1.
3. the bactericidal composition containing thifluzamide and Boscalid according to claim 1, is characterized in that: described combination dosage form is any one formulation allowing on agricultural chemicals.
4. the bactericidal composition containing thifluzamide and Boscalid according to claim 3, is characterized in that: described combination dosage form is wetting powder, water-dispersible granules, suspending agent, aqueous emulsion or missible oil.
5. according to the bactericidal composition containing thifluzamide and Boscalid described in claim 1-4 any one, it is characterized in that: the mass percent of the active ingredient that described thifluzamide and Boscalid form in formulation is 30%～60%.
6. the application of the bactericidal composition containing thifluzamide and Boscalid claimed in claim 1 in control crop fungal disease.
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| CN103598190B CN103598190B (en) | 2015-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114391547A (en) * | 2022-01-19 | 2022-04-26 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Seed coating formula for preventing and controlling soybean southern blight and verticillium wilt |
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|---|---|---|---|---|
| CN101755825A (en) * | 2009-11-23 | 2010-06-30 | 陈章艳 | Bactericide composition containing thifluzamide |
| CN102090400A (en) * | 2011-03-25 | 2011-06-15 | 安徽省农业科学院植物保护研究所 | Sterilization composition containing cyprodinil and thifluzamide |
| CN103314967A (en) * | 2012-03-21 | 2013-09-25 | 陕西韦尔奇作物保护有限公司 | Fenhexamid-containing bactericidal composition |
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2013
- 2013-10-23 CN CN201310503063.4A patent/CN103598190B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755825A (en) * | 2009-11-23 | 2010-06-30 | 陈章艳 | Bactericide composition containing thifluzamide |
| CN102090400A (en) * | 2011-03-25 | 2011-06-15 | 安徽省农业科学院植物保护研究所 | Sterilization composition containing cyprodinil and thifluzamide |
| CN103314967A (en) * | 2012-03-21 | 2013-09-25 | 陕西韦尔奇作物保护有限公司 | Fenhexamid-containing bactericidal composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114391547A (en) * | 2022-01-19 | 2022-04-26 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Seed coating formula for preventing and controlling soybean southern blight and verticillium wilt |
| CN114391547B (en) * | 2022-01-19 | 2024-04-09 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Seed coating formulation for preventing and controlling soybean southern blight and bacterial wilt |
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| CN103598190B (en) | 2015-02-18 |
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