CN103070180A - Multifunctional rice seed treating agent - Google Patents
Multifunctional rice seed treating agent Download PDFInfo
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- CN103070180A CN103070180A CN201310044044XA CN201310044044A CN103070180A CN 103070180 A CN103070180 A CN 103070180A CN 201310044044X A CN201310044044X A CN 201310044044XA CN 201310044044 A CN201310044044 A CN 201310044044A CN 103070180 A CN103070180 A CN 103070180A
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- fludioxonil
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Abstract
The invention relates to two kinds of rice seed treating agents combined with insecticide and bactericide, and application of the combined rice seed treating agents. The effective components of the combined rice seed treating agent of one kind comprise tebuconazole, fluazinam and cartap, wherein the mass ratio of the tebuconazole to the fluazinam to the cartap is (1-40): (1-40): (1-40) and is preferably (1-3): (1-5): (1-6). The effective components of the combined rice seed treating agent of the other kind comprise tebuconazole, fludioxonil and cartap, wherein the mass ratio of the tebuconazole to the fludioxonil to the cartap is (1-30): (1-30): (1-30) and is preferably (1-2): (1-2): (1-5). To calculate by mass percentage, the total content of the effective components, i.e. the tebuconazole, the fluazinam or the fludioxonil and the cartap in a preparation is 1-90 percent. By adding conventional additives into the effective components of the two kinds of combined rice seed treating agents, agricultural commonly-used preparations can be processed. The combined rice seed treating agents provided by the invention can effectively prevent and control rice seed-borne diseases such as Fusarium moniliforme Sheld and Aphelenchoides besseyi, and soil-borne diseases such as rice blight and pythium rot by adopting a seed coating method, a seed immersing method, a seed dressing method and a seed bud treatment method.
Description
Technical field
The invention belongs to technical field of pesticide, relate to the seed treatment that is exclusively used in control paddy rice seed-borne disease and soil-borne disease of a kind of Tebuconazole, fludioxonil, fluazinam and cartap combination.
Background technology
Since the nineties in last century, the paddy rice seed-borne disease becomes produces upper distinct issues, and bakanae disease of rice, aphelenchoides besseyi disease, seedling rice blast, rice streak etc. become the normal venereal disease evil of sending out.These diseases are by seed dispersal, and the best approach of preventing and treating these diseases namely adopts seed treatment (seed pelleting, medicament seed soaking etc.).
The upper medicament kind for the rice paddy seed processing of present production is many, mainly contains carbendazim, Prochloraz, 2-cyano-3-amino-3-phenylancryic acetate etc. and posts the disease fungus of Tibetan and then prevent and treat the kind fax fungal diseases such as bakanae disease of rice, seedling rice blast for killing rice paddy seed.Because use all the year round, fusarium moniliforme develops immunity to drugs to carbendazim, the susceptibility of Prochloraz is also obviously descended, so that these medicaments obviously descend to the control efficiency of bakanae disease of rice.And important seed-borne disease on the paddy rice---Aplelenchiodes bessegi of rice occurs serious in part rice district, and it is few to can be used for preventing and treating the medicament of this disease.
Paddy rice pythium rot, damping off are the important soil-borne diseases of rice seedling, have a strong impact on rice seed germination and seedling.The main method of producing this type of disease of control is to carry out soil disinfection or spraying in seedling stage with bactericide such as disliking mould spirit (hymexazol, hydroxyisoxazole).How in conjunction with seed treatment to prevent and treat this type of disease be the peasant in the urgent need to technology.
Occurrence characteristic based on paddy rice seed-borne disease and soil-borne disease, the upper defective that exists of at present rice seed treating agent production and application, we are in the new rice seed treating agent of screening, find that two kinds of combination seed treatments have preferably control efficiency to paddy rice seed-borne disease and soil-borne disease, and to natural enemies security, environmentally friendly.
Tebuconazole (English common name: tebuconazole) belong to triazole bactericidal agent, it is the sterol demethylation inhibitor, for the seed treatment of Important Economic crop or the efficient germicide of foliage spray, can effectively prevent and treat multiple rust, powdery mildew, net blotch, root rot, the head blight of cereal crop, smut and kind pass zonate spot etc.
Fludioxonil (English common name: fludioxonil) be a kind of novel non-internal-absorting phenylpyrrole series bactericidal agent.The chlorine that Switzerland Ciba-Geigy company in 1984 (existing Syngenta Co.,Ltd) replaces pyrroles 3-position with cyano group carries out the synthetic fludioxonil of chemical modification.EPA (EPA) thinks that fludioxonil is relevant with " low-risk " toxicity, registers and allowed use in 1996 in the U.S..The antibacterial mechanism of fludioxonil then is to suppress mycelial growth by suppressing the transhipment relevant with the glucose phosphorylated, finally causes germ dead.Fludioxonil both can suppress spore rudiment, germ tube elongation, mycelial growth, the pathogens such as sac fungi, basidiomycetes, imperfect fungus there is good preventive effect, be widely used in multiple kinds of crops seed treatment (dressing or seed dressing), be used for just gradually at present the rot of control fruit vegetables storing.
Fluazinam (English common name: fluazinam) belong to 2,6-dinitroaniline protective fungicide.Its mechanism of action is mitochondrial oxidation phosphorylated uncoupler, reaches bactericidal activity by suppressing spore germination, mycelial growth and sporulation.Very effective to interlink spore genus, Botrytis, Phytophthora, Plasmopara, Sclerotinia fungi, resistance of rainwater washing against, the lasting period is long; The crucifer club root also there is remarkable preventive effect, to by the microbial paddy rice damping off of head mold good preventive effect being arranged also.
Cartap (English common name: cartap) be a kind of sandworm toxin insecticide.1967 by Japan's exploitation manufacturing.Cartap has stomach toxicity, tags and systemic action, and certain ovicidal action is also arranged.Change nereistoxin into after entering polypide, can block the central nervous system cynapse and transmit impulsion, make that insect is slow in action, food refusal, polypide is softening, and is dead after 3～5 days.Be mainly used in preventing and treating rice-stem borer, paddy stem borer, scotellaris, paddy stem maggot etc.The nineties in last century, report can be prevented and treated the aphelenchoides besseyi disease with the cartap seed soaking.
Characteristics based on above-mentioned bactericide, insecticide, the inventor carries out in the compound screening at the good characteristic of using each medicament, find that two kinds can effectively be prevented and treated other seed-borne disease, the soil-borne diseases such as bakanae disease of rice, Aplelenchiodes bessegi of rice simultaneously, and to natural enemies security, environment amenable high-efficiency seed inorganic agent.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and the disease fungus of posting the Tibetan in the rice paddy seed and nematode had behind better control efficiency and the rice growing in the seed surrounding soil saprophytic fungus to have a higher inhibition active and to the little compound insecticidal of environmental influence, bactericide and rice seed treating agent.
The component of one of combination rice seed treating agent of the present invention is Tebuconazole, fludioxonil and cartap.
Two component of combination rice seed treating agent of the present invention is Tebuconazole, fluazinam and cartap.
Combination desinsection, the bactericide of one of combination rice seed treating agent of the present invention take Tebuconazole, fludioxonil and cartap as component, active ingredient wherein is that Tebuconazole, fludioxonil and cartap percentage by weight are 1～30: 1～30: 1～20, and optimum ratio is 1: 2: 2.
Two combination desinsection, bactericide take Tebuconazole, fluazinam and cartap as component of combination rice seed treating agent of the present invention, active ingredient wherein is that Tebuconazole, fluazinam and cartap percentage by weight are 1～30: 1～30: 1～20, and optimum ratio is 1: 2: 2.
Of the present invention with Tebuconazole, fludioxonil, cartap and Tebuconazole, fluazinam, cartap is the rice seed treating agent of active ingredient, the additive that can add convention amount, described additive is solvent, emulsifier, dispersant, stabilizing agent, antifreezing agent, thickener, in the warning colouration one or more, and make wetting powder (WP) by common method, water solube powder (AF), seed treatment microcapsule suspending agent (CF), dry suspending agent (DF), Waterless Seed Dressing agent (DS), colloidal suspending agent (JG), seed treatment emulsion (ES), suspension seed-coating agent (FS), suspension seed dressing (FSB), Waterless Seed Dressing agent (GB), dry-powder seed coating agent (GZ), seed treatment liquor (LS), microemulsion (ME), water and milk kind clothing agent (RSC), suspending agent (SC), plant clothing agent (SD), suspension emulsion (SE), aqueous emulsion (EW), seed treatment (ZC), seed treatment soluble powder (SS), but wet-milling kind clothing agent (SZ), seed treatment suspending agent (ZX), but seed treatment dispersion powder (ZF), seed treatment dry powder doses (ZGF), oil base kind clothing agent (YG), microemulsion (ME), missible oil (EC), water dispersion granule (WDG) or granule etc.
One of method of combination seed treatment control paddy rice seed-borne disease of the present invention is: rice paddy seed was used Seed soaking 24～60 hours prior to seeding with after making up seed treatment dressing post-drying, sowed after the vernalization (or not vernalization) routinely again.
Two of the method for combination seed treatment control paddy rice seed-borne disease of the present invention is: combination seed treatment of the present invention dilutes 400～600 times with clear water, immerse rice paddy seed, liquid is advisable to exceed seed face 5～10cm, the liquid seed soaking was pulled seed out after 36～60 hours, sowed after the vernalization (or not vernalization) routinely again.
Three of the method for combination seed treatment control paddy rice seed-borne disease of the present invention is: rice paddy seed is pulled seed with the clear water dipping out after 36～60 hours, slightly controlling solid carbon dioxide divides, vernalization is about 24 hours according to a conventional method, after bud shows money or valuables one carries unintentionally, with combination seed treatment seed dressing of the present invention, sow after the vernalization 24 hours (or not vernalization) again after the seed dressing.
Benefit of the present invention:
1, expanding prevention object and raising drug effect.Fludioxonil and fluazinam have killing action to fungi, but do not have systemic action, thereby partially short to the lasting period of disease control, and and invalid to nematode; Tebuconazole has stronger inhibitory action to fungi, and interior absorption is strong, and holding effect is long, but to germ without killing action; Cartap has higher killing effect to Aphelenchoides oryzae Yokoo.Can prevent and treat simultaneously Rice seed-borne fungi disease and Aplelenchiodes bessegi of rice after utilizing two kinds of bactericide and a kind of Mixture Use of Insecticides, and play can suppress pathogen growth again can killing pathogenic bacteria, kill simultaneously the effect of nematode.
2, save medicine basis and cost.Owing to insecticide and bactericide are mixed use, so that application by peasants is once soaked seed or seed treatment can be prevented and treated multiple diseases.
3, alleviate harmful effect to environment.Reduce spray medicine number of times and spray value, reduce in Environmental Pesticide pollution of area source source.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage more clear, describe with following embodiment, but the present invention is not limited to these embodiment.
Embodiment 1: the toxicity prescription is measured:
1. subjects: fusarium moniliforme (Fusarium moniliforme).
2. test method: with reference to " pesticide bioassay test rule NY/T1156.2-2006 ", adopt the pastille medium method.
3. data analysis: analyze with DPS3.0 software.Calculate mycelial growth inhibition rate (%) according to test data, obtain virulence regression equation formula, EC
50Value and co-toxicity coefficient (CTC).
4. evaluation method: with reference to " pesticide bioassay test rule NY/T1156.2-2006 ", estimate the synergistic effect of pharmacy mix according to the co-toxicity coefficient (CTC) of the abundant method of Sun Yun (1960).CTC≤80 are antagonism; CTC 〉=120 are synergistic effect; 80＜CTC＜120 are summation action.
5. results and analysis:
Table 1: Tebuconazole, fluazinam and cartap mixture are active to the inhibition of rice Fusarium moniliforme Sheld mycelial growth
Table 1 result demonstration, Tebuconazole, fluazinam have higher inhibition activity to the fusarium moniliforme mycelial growth, suppress the EC of mycelial growth
50Value is respectively 0.2349 μ g/ml and 0.2098 μ g/ml; And cartap suppresses the EC of mycelial growth
50Value is up to 19.3269 μ g/ml, and bacteriostatic activity is lower.Tebuconazole, fluazinam and the cartap rear inhibition activity to the fusarium moniliforme mycelial growth that is mixed has significant summation action or synergistic effect, without antagonism.Tebuconazole: fluazinam: the cartap ratio is 1: 5: 1,1: 10: 1,5: 1: 1,10: 1: 1,20: 1: 1,30: 1: 1 o'clock, and its CTC value shows synergistic effect all greater than 120; Other proportioning is summation action (table 1).
Table 2: Tebuconazole, fludioxonil and cartap mixture are active to the inhibition of rice Fusarium moniliforme Sheld mycelial growth
Table 2 result demonstration, Tebuconazole has higher inhibition activity to the fusarium moniliforme mycelial growth, suppresses the EC of mycelial growth
50Value is 0.2349 μ g/ml; And fludioxonil suppresses the EC of mycelial growth
50Value is 4.2969 μ g/ml; Cartap suppresses the EC of mycelial growth
50Value is up to 19.3269 μ g/ml, and bacteriostatic activity is lower.Tebuconazole, fludioxonil and the cartap rear inhibition activity to the fusarium moniliforme mycelial growth that is mixed has significant summation action or synergistic effect, without antagonism.Tebuconazole: fludioxonil: cartap one ratio is 1: 1: 1,1: 5: 1,1: 10: 1,1: 20: 1,1: 1: 5 o'clock, and its CTC value shows synergistic effect all greater than 120; Other proportioning is summation action (table 2).
Embodiment 2:5% Tebuconazole fludioxonil cartap suspension seed-coating agent
(folding hundred calculates to take by weighing the former medicine of fludioxonil, lower same) 2.5g, Original Tebuconazole 0.5g, the former medicine 2g of cartap is added to the water former medicine, is stirred to homogeneous liquid in stirred tank, add dispersant (sodium lignin sulfonate) 0.5%～10%, wetting agent (alkylnaphthalene sulfonate) 0.5%～10%, film forming agent (polyvinyl acetate) 4% is after stirring; Thickener (polyvinyl alcohol) 0.1%～5% after slowly adding dilute with water under 60～120rpm/min mechanical agitation, warning colouration (basic rhodamine) 1%, antifreezing agent (ethylene glycol) 0.1%～5%, defoamer (silicone oil) 0.01%～3%, water is supplied 100ml, adopt the air compressing pipeline to carry feed liquid during grinding, adopt the sand mill (loading thin zirconium oxide bead and thick zirconium oxide bead) of 4 series connection to carry out continuous sand milling, make 5% Tebuconazole fludioxonil cartap suspension seed-coating agent (FS).
Fludioxonil is changed into fluazinam, can be made into 5% Tebuconazole fluazinam cartap suspension seed-coating agent by same method.
Embodiment 3:15% Tebuconazole fluazinam cartap microemulsion
Take by weighing the former medicine 5g of Original Tebuconazole 5g fluazinam, the former medicine 5g of cartap adds organic solvent 5%～25%, emulsifier 5%～25%, and antifreezing agent 0.1%～5%, water is supplied 100ml, makes 15% Tebuconazole fluazinam cartap ME;
In the above-mentioned microemulsion trial-production, organic solvent is the 150# solvent naphtha, and emulsifier is aliphatic acid polyethenoxy ether series intermixture, and antifreezing agent is ethylene glycol.Under the condition that stirs, fludioxonil is joined in the organic solvent, add again cosolvent, after former medicine dissolves fully, add emulsifier and make emulsifiers dissolve.Under 50～90rpm/min condition, add entry and antifreezing agent and add the former medicine of cartap, stir the microemulsion that 30min obtains homogeneous transparent.
Fluazinam is changed into fludioxonil, can be made into 15% Tebuconazole fludioxonil cartap suspension seed-coating agent by same method.
Embodiment 4:48% Tebuconazole fluazinam cartap suspending agent
Take by weighing Original Tebuconazole 3g, the former medicine 30g of fluazinam, the former medicine 15g of cartap, former medicine is added to the water, in stirred tank, is stirred to homogeneous liquid, add dispersant (sodium lignin sulfonate) 0.5%～10%, wetting agent (alkylnaphthalene sulfonate) 0.5%～10% is after stirring; Thickener (polyvinyl alcohol) 0.1%～5% after slowly adding dilute with water under 60～120rpm/min mechanical agitation, antifreezing agent (ethylene glycol) 0.1%～5%, defoamer (silicone oil) 0.01%～3%, water is supplied 100ml, adopt the air compressing pipeline to carry feed liquid during grinding, adopt the sand mill (loading thin zirconium oxide bead and thick zirconium oxide bead) of 4 series connection to carry out continuous sand milling, make 48% Tebuconazole fluazinam cartap SC.
Fluazinam is changed into fludioxonil, can be made into 48% Tebuconazole fludioxonil cartap SC by same method.
Embodiment 5: the medicament seed pelleting is to the field control effect of paddy rice seed-borne disease
5% Tebuconazole fludioxonil cartap FS and 5% Tebuconazole fluazinam cartap FS press medicine: plant than evenly seed dressing in 1: 60,1: 100,1: 200, dry rear storage after the seed dressing.The capsuled seed vernalization sowing behind the 24h of soaking seed prior to seeding, after planting 25d investigation bakanae disease diseased plant rate, rice tillering Sheng phase investigation land for growing field crops bakanae disease, the Aplelenchiodes bessegi of rice incidence of disease after transplanting, and calculate protection effect.The result is as shown in table 3.5% Tebuconazole fludioxonil cartap FS and 5% Tebuconazole fluazinam cartap FS all have preferably control efficiency to bakanae disease of rice and Aplelenchiodes bessegi of rice; Come from field control effect, 5% Tebuconazole fluazinam cartap FS is better than the control efficiency of 5% Tebuconazole fludioxonil cartap FS to the control efficiency of bakanae disease and Aplelenchiodes bessegi of rice; Different amounts compares, and 5% Tebuconazole fludioxonil cartap FS and 5% Tebuconazole fluazinam cartap FS press medicine: kind is better than 1: 100 seed dressing effect, and economical and practical (table 3).
Table 3:5% Tebuconazole fludioxonil cartap FS etc. are to the control efficiency of bakanae disease of rice, Aplelenchiodes bessegi of rice
Embodiment 6: the medicament seed soaking is to the field control effect of paddy rice seed-borne disease
15% Tebuconazole fludioxonil cartap ME and 15% Tebuconazole fluazinam cartap ME were diluted to liquid by 1: 1000,1: 1500,1: 2000, and by every hydrargyrum oxydatum crudum liquid immersion rice 600g, elimination liquid behind the seed soaking 48h is sowed behind the vernalization 48h according to a conventional method.After planting 30d investigation bakanae disease diseased plant rate, the rice tillering Sheng phase is investigated land for growing field crops bakanae disease, the Aplelenchiodes bessegi of rice incidence of disease after transplanting, and calculates protection effect.
Table 4:15% Tebuconazole fluazinam cartap ME etc. are to the control efficiency of bakanae disease of rice, Aplelenchiodes bessegi of rice
The result is as shown in table 4, and 15% Tebuconazole fludioxonil cartap ME and 15% Tebuconazole fluazinam cartap ME all have preferably control efficiency to bakanae disease of rice and Aplelenchiodes bessegi of rice.Come from field control effect, 15% Tebuconazole fluazinam cartap ME is better than the control efficiency of 15% Tebuconazole fludioxonil cartap ME to the control efficiency of bakanae disease and Aplelenchiodes bessegi of rice; Different amounts compares, and effect of soaking seed was better after 15% Tebuconazole fludioxonil cartap ME and 15% Tebuconazole fluazinam cartap ME diluted 1500 times, and economical and practical (table 4).
Embodiment 7: dressing seed is to the field control effect of paddy rice soil-borne disease
48% Tebuconazole fludioxonil cartap SC and 48% Tebuconazole fluazinam cartap SC are by medicine: plant than 1: 100,1: 150,1: 200 and mix behind the 48h that soaks seed and the seed rice of filtered water, sow behind vernalization 36～48h according to a conventional method after mixing thoroughly.The pythium rot incidence of disease of after planting 18d investigation rice seedling blight, and calculate protection effect.
Table 5:48% Tebuconazole fluazinam cartap SC etc. are to the control efficiency of paddy rice soil-borne disease
The result is as shown in table 5, and 48% Tebuconazole fludioxonil cartap SC and 48% Tebuconazole fluazinam cartap SC seed dressing all have preferably control efficiency to paddy rice soil-borne disease damping off, pythium rot.Come from field control effect, 48% Tebuconazole fluazinam cartap SC is better than the control efficiency of 48% Tebuconazole fludioxonil cartap SC to the control efficiency of paddy rice soil-borne disease; Different amounts compares, and 48% Tebuconazole fludioxonil cartap SC and 48% Tebuconazole fluazinam cartap SC press medicine: plant than 1: 150～100 seed dressing effects better (table 5).
Although above with general explanation, specific embodiments and and effect experiment the present invention has been done detailed description.But on basis of the present invention, can to some modifications of do and improvement, this will be apparent to those skilled in the art.Therefore make without departing from theon the basis of the spirit of the present invention these modifications and improvement, all belong to the scope of protection of present invention.
Claims (8)
1. composition pesticide, it is characterized in that: the active ingredient in the composition is Tebuconazole, fluazinam and cartap, the mass ratio of Tebuconazole, fluazinam and cartap is 1～40: 1～40: 1～40.
2. composition pesticide according to claim 1, it is characterized in that: the mass ratio of active ingredient Tebuconazole, fluazinam and cartap is preferably 1～3: 1～5: 1～6.
3. composition pesticide, it is characterized in that: the active ingredient in the composition is Tebuconazole, fludioxonil and cartap, the mass ratio of Tebuconazole, fludioxonil and cartap is 1～30: 1～30: 1～30.
4. composition pesticide according to claim 3, it is characterized in that: the mass ratio of active ingredient Tebuconazole, fludioxonil and cartap is preferably 1～2: 1～2: 1～5.
5. according to claim 1,2,3,4, it is characterized in that described composition pesticide is mixed with following formulation: wetting powder, water solube powder, the seed treatment microcapsule suspending agent, dry suspending agent, the Waterless Seed Dressing agent, colloidal suspending agent, seed treatment emulsion, suspension seed-coating agent, the suspension seed dressing, the Waterless Seed Dressing agent, dry-powder seed coating agent, the seed treatment liquor, microemulsion, the agent of water and milk kind clothing, suspending agent, plant the clothing agent, suspension emulsion, aqueous emulsion, seed treatment, the seed treatment soluble powder, but wet-milling kind clothing agent, the seed treatment suspending agent, but seed treatment dispersion powder, the seed treatment dry powder doses, the agent of oil base kind clothing, microemulsion, missible oil, the formulations such as water dispersion granule.
6. according to claim 1,2,5, it is characterized in that: Tebuconazole, fluazinam and cartap percentage composition in the composition pesticide preparation is 1%～90%.
7. according to claim 3,4,5, it is characterized in that: Tebuconazole, fludioxonil and cartap percentage composition in the composition pesticide preparation is 1%～90%.
8. the application of composition pesticide according to claim 1 and 2 on control paddy rice seed-borne disease and soil-borne disease.
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| CN103875712A (en) * | 2014-03-31 | 2014-06-25 | 李兆勇 | Safe pleietrepie rice seed treating agent |
| CN104115841A (en) * | 2014-08-12 | 2014-10-29 | 江苏东台东南农药化工有限公司 | Fungicide composition containing fludioxonil and application thereof |
| CN104996219A (en) * | 2015-06-30 | 2015-10-28 | 云南天质网络科技有限公司 | Prevention and control method for rice bakanae disease |
| CN105532689A (en) * | 2016-01-14 | 2016-05-04 | 扬州市苏灵农药化工有限公司 | Pesticide composition containing fluazinam, ethylicin and cartap and application of pesticide composition |
| CN108124906A (en) * | 2017-12-21 | 2018-06-08 | 中国水稻研究所 | A kind of paddy rice seed soaking agent |
| CN113558053A (en) * | 2021-08-10 | 2021-10-29 | 黑龙江省大地丰农业科技开发有限公司 | Seed coating agent for preventing and treating rice bakanae disease and preparation method thereof |
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| CN105532689A (en) * | 2016-01-14 | 2016-05-04 | 扬州市苏灵农药化工有限公司 | Pesticide composition containing fluazinam, ethylicin and cartap and application of pesticide composition |
| CN108124906A (en) * | 2017-12-21 | 2018-06-08 | 中国水稻研究所 | A kind of paddy rice seed soaking agent |
| CN108124906B (en) * | 2017-12-21 | 2019-11-15 | 中国水稻研究所 | A kind of paddy rice seed soaking agent |
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