CN103749452A - Seed-dressing agent - Google Patents
Seed-dressing agent Download PDFInfo
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- CN103749452A CN103749452A CN201310729742.3A CN201310729742A CN103749452A CN 103749452 A CN103749452 A CN 103749452A CN 201310729742 A CN201310729742 A CN 201310729742A CN 103749452 A CN103749452 A CN 103749452A
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Abstract
The invention relates to a seed-dressing agent containing fludioxonil. The seed-dressing agent is characterized in that effective components in the seed-dressing agent include the fludioxonil (A) and at least one of naphthoxyacetic acid and gibberellic acid (B), wherein the weight part ratio of the effective components (A to B) is 40:1 to 0.1:40 and can be 20:1 to 0.1:10 preferably; the total weight part of the effective components (A and B) in a preparation of the seed-dressing agent accounts for 1-80 percent of the total weight part of the whole preparation and accounts for 1-25 percent preferably. A pesticide preparation formulation which can be prepared from the seed-dressing agent is a suspended seed coating, an emulsifiable concentrate, wettable powder and granules. The seed-dressing agent has a remarkable synergistic effect, the problem of weak sterilization performance of the naphthoxyacetic acid and the gibberellic acid is solved, the problem of gradual reduction of the sterilization effect of the fludioxonil is solved, the sterilization stability of the fludioxonil under the external environments of different temperatures, different degrees of dryness, different degrees of humidity and the like is improved, and the drug resistance is delayed.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, be specifically related to a kind of seed dressing that contains fludioxonil.
Background technology
Fludioxonil (Fludioxoni) mechanism of action uniqueness, by suppressing glucose phosphorylated relevant transfer, and the mycelial growth of Antifungi, finally causes germ death, with existing bactericide without cross resistance.Its chemical name is: 4-(2,2-bis-fluoro-1,3-benzo dioxolanes-4-yl) pyrroles-3-nitrile, belongs to the wide-spectrum bactericide of non-internal-absorting.As blade face bactericide, be used for preventing and treating the rotten Fusariumsp of snow, wheat net bunt bacterium, rhizoctonia solani etc., gray mold is had to special efficacy; As seed treatment: be mainly used in cereal and fragrant-flowered garlic cereals crop that control kind passes and soil-borne disease bacterium as Alternaria, Ascochyta, aspergillus, Fusariumsp bits, length wriggle spore bits, Rhizoctonia and Penicillium bacterium etc.
Naphthoxyacetic acid (BNOA) is that naphthalene class has the bioactive plant growth regulator of growth hormone, by blade and root absorption, can promote setting, stimulate Fruit, and can overcome hollow fruit; Use together with root-growing agent, also can promote plant establishment.But it is a little less than effect aspect sterilization.
Gibberellic acid is a broad spectrum activity plant growth regulator, can promote crop growth, makes it premature ripening, improves output, improves quality; Can break rapidly the dormancy of the organs such as seed, stem tuber and bulb, stratification; Reduce coming off of flower bud, flower, bell, fruit, improve fruit fruiting rate or form stenospermocarpy.
In modern agricultural production, prior to seeding, peasant generally uses seed dressing to carry out some to the surface of the seed and processes, in the hope of reaching wherein one or more objects such as insect protected, diseases prevention, drought resisting, strong sprout.On front market, exist some to adopt Chinese medicine extracts as sterilization, disease-resistant environment-friendly type seed dressing, although there is environmental protection characteristic, but do not possess drought resisting, strong sprout function, utilize in addition the sterilization of microorganism live bacteria, the function of disease and insect resistance, take active bacteria formulation as Main Ingredients and Appearance.Viable bacteria in this type of seed dressing has preventive and therapeutic effect to fungoid, bacterial disease, and Disease is had to inhibitory action.But this type of seed dressing is production process complexity not only, equipment, factory building require high, and investment is large, and preservation condition requires strict.And because the activity performance of the microorganisms such as mushroom has certain requirement to soil moisture, and north soil moisture content in spring is poor, the effect of this type of seed dressing is extremely unstable, and does not possess drought resisting function.
Various crops seedling stage diseases are (as wheat sharp eyespot, Maize Seedling Blight, cotton in seedling stage root disease, Diplodia gossypina etc.) be the major issue in agricultural production always, often cause be short of seedling disconnected ridge and a large amount of dead seedling, very large on crop yield impact, seed treatment is the important means of control seedling stage diseases and pests, but at present, in promoting the use of, actual production really there are a large amount of problems, for example Garrick show, when suitable happy, the two grade of seed dressing has prophylaxis effect, but practical technique complexity, protection effect is bad, and dangerous to crop, a kind of seed coat agent series of products are disclosed in application number 98106559.7, in this seed coat agent, be applicable to wheat, the sterilization seed coat agent of corn seed is alkene azoles alcohol, checking by experiment, actual effect is poor, and sphere of action is narrower, be only applicable to corn, wheat.The applied in any combination scopes such as the carbendazim of cotton and triazolone, Triadimenol that are applicable to are also only limited to cotton, and high malicious low preventive effect.In patent 200610018001.4, disclose a kind of disinsection prophylaxis agent for coating seeds that contains fludioxonil, Isofenphos methyl belongs to high malicious organophosphorus insecticide, and both are composite there is no much synergy really, substantially forbids at present.
Therefore, in order to adapt to the actual requirement of agricultural production, a kind of applied range, the research and development of the novel agrochemical seed dressing of the high and low toxic and environment-friendly type of preventive effect are extremely urgent, the long-time research in seed dressing field of my research staff of company process, between the high-efficiency environment friendly agricultural chemicals by the different mechanisms of action, do compound screening test, to solve the fludioxonil single dose problem that preventive effect declines in actual production, after great many of experiments, a kind of new bactericidal composition seed dressing has been proposed finally, its main active ingredient is fludioxonil and naphthoxyacetic acid, at least one in gibberellic acid, both have good synergistic effect and compatibility, can be good at solving the problem running in above actual production, and time and labour saving, less pollution compared with other pesticide application technology, and up to the present, through preliminary search, do not find with fludioxonil and naphthoxyacetic acid, at least one in gibberellic acid is the relevant report of the seed dressing agent of active ingredient.
Summary of the invention
The object of the present invention is to provide the seed dressing of a kind of new applied range, high-efficiency low-toxicity environmental protection, and provide a kind of broad weed-killing spectrum, herbicidal effect good, use safety, more environmentally friendly seed dressing, better to prevent and treat the serial a large amount of native biography such as root rot, gray mold, damping off, bakanae disease, stalk break, smut or fungi, bacterial disease.
The solution of the present invention is achieved by the following technical measures:
A kind of seed dressing that contains fludioxonil, its feature is to contain in this seed dressing A, two kinds of active principles of B, wherein A component is fludioxonil, B component is at least one in naphthoxyacetic acid, gibberellic acid, all the other components in preparation outside active principle are that agricultural chemicals used additives and preparation are prepared complementary component, in the preparation of this seed dressing, the ratio of weight and number of active principle A and B is 40: 1～0.1: 40, and in seed dressing preparation, the total weight parts of active principle A and B accounts for 1%～80% of whole total formulation weight amount part.
The ratio of weight and number of active principle A and B more preferably 20: 1～0.1: 10 in the preparation of above-described seed dressing.
The percentage that in above-described seed dressing preparation, the total weight parts of active principle A and B accounts for whole total formulation weight amount part more preferably 1%～25%.
The pesticidal preparations formulation that above-described seed dressing can be mixed with is suspension seed-coating agent, missible oil, wetting powder, granule.
When above-described seed dressing is wetting powder, in preparation, the ratio of weight and number of each component is:
Active principle A 1 ~ 40
Active principle B 0.1 ~ 40
Dispersant 5 ~ 20
Wetting agent 1 ~ 10
Filler 10 ~ 70.
The concrete procedure of processing of this seed dressing wetting powder is: by above-mentioned formula, active principle A and active principle B and dispersant, wetting agent and filler are mixed, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of seed dressing of the present invention.
When above-described seed dressing is suspension seed-coating agent, in preparation, the ratio of weight and number of each component is:
Active principle A 1 ~ 40
Active principle B 0.1 ~ 40
Dispersant 2～50
Antifreezing agent 1～5
Anticaking agent 1～-4
Suspending agent 1～6
Film forming agent 0.1～3
Filler 1～10
Mould inhibitor 0.1～3
PH adjusting agent 0
.1～5
Colouring agent 0.5～5
Deionized water is supplied 100 parts.
The concrete production stage of this suspension seed-coating agent is in high-shear emulsifying dispersion machine, by proportioning, add the effective constituents A of metering, active ingredient B, dispersant, antifreezing agent, anticaking agent, film forming agent, filler, mould inhibitor, colouring agent, pH adjusting agent and the deionized water of supplying, stir while adding evenly, by mixed liquor homogenous disperse about 30 minutes under vacuum tightness condition, again at the uniform velocity even above-mentioned mixed liquor amount is added in ball mill to ball milling 1.5～3 hours, the aqueous solution adjusting viscosity that adds suspending agent to be made into, after mixing and stirring, discharging obtains the suspension seed-coating agent of seed dressing of the present invention.
When above-described seed dressing is cream preparation, in preparation, the ratio of weight and number of each component is:
Active principle A 1～40
Active principle B 0.1～40
Emulsifier 8～20
Solvent 15～50
Synergist 1～5.
The concrete production stage of this cream preparation is first active principle A, B 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.
When above-described seed dressing is granule, in preparation, the ratio of weight and number of each component is:
Active principle A 1～40
Active principle B 0.1～40
Wetting dispersing agent 1～20
Thickener 1～15
Defoamer 1～5
Castor oil is supplied 100 parts.
By active principle A, B, each components such as dispersant, thickener, defoamer and solvent are mixed in the ratio of formula, put into after the grinding of sand milling still, send into the granular preparation that mixes and obtain the present composition in mixer for well-distribution.
Above-described emulsifier is selected from least one in 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, polyoxyethylene aliphatic alcohol ether.
The above solvent is at least one in dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), water equal solvent.
Above-described dispersant is selected from least one in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid glyceride APEO.
Above-described wetting agent is selected from: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, pull open at least one in powder copper rosinate X., wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene triphenylethylene phosphenylic acid salt, spaonin powder, silkworm excrement, soapberry powder.
Above-described thickener is selected from: at least one in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol.
Above-described stabilizing agent is selected from: at least one in sodium citrate, resorcinol.
Above-described antifreezing agent is selected from: one or more in ethylene glycol, glycerine, propane diols, polyethylene glycol, sorbierite, urea.
Above-described anticaking agent is sodium silicoaluminate or tricalcium phosphate or silica or above-mentioned many kinds of substance composition.
Above-described suspending agent is at least one in xanthans or white carbon or polyvinyl alcohol or sodium carboxymethylcellulose or Nitrophenols ketone.
The above film forming agent is at least one in polyvinyl alcohol or polyvinyl acetate or modified starch.
The above mould inhibitor is at least one in BIT, Sodium Benzoate, formaldehyde, sorbic acid and polyhydroxy benzenes propyl formate.
Above-described defoamer is selected from: silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10at least one in aliphatic alcohols compound.
The above pH value conditioning agent is at least one in sodium hydroxide, potassium hydroxide, ammoniacal liquor, hydrochloric acid, acetic acid, phosphoric acid or citric acid.
Above-described colouring agent is that warning colouration is acid red as fire or Acid Red B.
Above-described filler is selected from: at least one in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate.
Seed dressing of the present invention is mainly used in the seed of soybean, peanut, corn, wheat, paddy rice, cotton, cowpea, watermelon, sunflower and ornamental flower to carry out Cotton seeds, better to prevent and treat the serial a large amount of native biography such as root rot, gray mold, damping off, bakanae disease, stalk break, smut or fungi, bacterial disease.Compared with other processes seed or pesticide application technology, less pollution.
The beneficial effect of seed dressing of the present invention is: first, seed dressing of the present invention has remarkable synergistic effect, both naphthoxyacetic acid, the weak problem of gibberellic acid bactericidal property had been solved, solve again the problem that fludioxonil bactericidal effect reduces gradually, strengthened the stability of fludioxonil sterilization under the external environments such as different temperatures, humidity; The second, obviously delayed the drug-fast generation of crop, reduced agricultural chemicals Reusability number of times, reduced agricultural chemicals usage amount, reduce agricultural cost; The 3rd, seed dressing of the present invention is when bactericidal effect obviously improves, and several objects such as drought resisting, strong sprout reach simultaneously, have improved the output of crop and the quality of fruit.The 4th, this seed dressing toxicity is little, residual quantity is low, is more beneficial to environmental protection, has improved the safety of composition to second stubble crop, significant to ecosystem environment protection.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The present invention adopts the method for field trial.If no special instructions, the ratio (comprising percentage) of below mentioning is all ratio of weight and number.
Embodiment 1: by 2 parts of fludioxonils, 0.5 part of naphthoxyacetic acid, 8 parts of dispersants, 8 parts of wetting agents and 82 parts of mixing of filler, uniform stirring in stirred tank is mixing after airslide disintegrating mill, makes the wetting powder of seed dressing of the present invention.
Embodiment 2: by 5 parts of fludioxonils, 0.5 part of gibberellic acid, 8 parts of dispersants, 7 parts of wetting agents and 80 parts of mixing of filler, uniform stirring in stirred tank is mixing after airslide disintegrating mill, makes the wetting powder of seed dressing of the present invention.
Embodiment 3: by 10 parts of fludioxonils, 1 part of naphthoxyacetic acid, 0.1 part of gibberellic acid, 10 parts of dispersants, 10 parts of wetting agents and 69 parts of mixing of filler, uniform stirring in stirred tank is mixing after airslide disintegrating mill, makes the wetting powder of seed dressing of the present invention.
Embodiment 4: the powder materials such as 1 part of fludioxonil, 0.1 part of naphthoxyacetic acid, 5 parts of fillers, 0.5 part of colouring agent, 1 part of anticaking agent are added in the homogenizer that deionized water is housed and mixed after 30min, add successively the liquid charging stocks such as 6 parts of dispersants, 1 part of film forming agent, 1 part of antifreezing agent, 1 part of preservative, mix again 10～15min, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, adds suspending agent, grind 2～3 times after discharging, through sieving, after packing, obtain the flowable suspension liquid of magneta colour, weigh, pack and obtain suspension seed-coating agent.
Embodiment 5: the powder materials such as 5 parts of fludioxonils, 1 part of naphthoxyacetic acid, 8 parts of fillers, 0.5 part of colouring agent, 1 part of anticaking agent are added in the homogenizer that deionized water is housed and mixed after 30min, add successively the liquid charging stocks such as 7 parts of dispersants, 1 part of film forming agent, 1 part of antifreezing agent, 1 part of preservative, mix again 10～15min, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, adds suspending agent, grind 2～3 times after discharging, through sieving, after packing, obtain the flowable suspension liquid of magneta colour, weigh, pack and obtain suspension seed-coating agent.
Embodiment 6: the powder materials such as 15 parts of fludioxonils, 5 parts of naphthoxyacetic acid, 8 parts of fillers, 1 part of colouring agent, 1 part of anticaking agent are added in the homogenizer that deionized water is housed and mixed after 30min, add successively the liquid charging stocks such as 13 parts of dispersants, 1 part of film forming agent, 1 part of antifreezing agent, 1 part of preservative, mix again 10～15min, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, adds suspending agent, grind 2～3 times after discharging, through sieving, after packing, obtain the flowable suspension liquid of magneta colour, weigh, pack and obtain suspension seed-coating agent.
Embodiment 7: the powder materials such as 10 parts of fludioxonils, 2 parts of gibberellic acid, 10 parts of fillers, 1 part of colouring agent, 1 part of anticaking agent are added in the homogenizer that deionized water is housed and mixed after 30min, add successively the liquid charging stocks such as 15 parts of dispersants, 1 part of film forming agent, 1 part of antifreezing agent, 1 part of preservative, mix again 10～15min, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, adds suspending agent, grind 2～3 times after discharging, through sieving, after packing, obtain the flowable suspension liquid of magneta colour, weigh, pack and obtain suspension seed-coating agent.
Embodiment 8: the powder materials such as 20 parts of fludioxonils, 0.5 part of gibberellic acid, 10 parts of fillers, 1 part of colouring agent, 1 part of anticaking agent are added in the homogenizer that deionized water is housed and mixed after 30min, add successively the liquid charging stocks such as 15 parts of dispersants, 1 part of film forming agent, 1 part of antifreezing agent, 1 part of preservative, mix again 10～15min, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, adds suspending agent, grind 2～3 times after discharging, through sieving, after packing, obtain the flowable suspension liquid of magneta colour, weigh, pack and obtain suspension seed-coating agent.
Embodiment 9: the powder materials such as 10 parts of fludioxonils, 10 parts of gibberellic acid, 10 parts of fillers, 1 part of colouring agent, 1 part of anticaking agent are added in the homogenizer that deionized water is housed and mixed after 30min, add successively the liquid charging stocks such as 15 parts of dispersants, 1 part of film forming agent, 1 part of antifreezing agent, 1 part of preservative, mix again 10～15min, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, adds suspending agent, grind 2～3 times after discharging, through sieving, after packing, obtain the flowable suspension liquid of magneta colour, weigh, pack and obtain suspension seed-coating agent.
Embodiment 10: by 10 parts of fludioxonils, 0.1 part of gibberellic acid, 0.1 part of naphthoxyacetic acid, the powder materials such as 10 parts of fillers, 1 part of colouring agent, 1 part of anticaking agent add in the homogenizer that deionized water is housed and mix after 30min, add successively the liquid charging stocks such as 12 parts of dispersants, 1 part of film forming agent, 1 part of antifreezing agent, 1 part of preservative, mix again 10～15min, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified under the condition of airtight, pressurization, disperse, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, adds suspending agent, grind 2～3 times after discharging, through sieving, after packing, obtain the flowable suspension liquid of magneta colour, weigh, pack and obtain suspension seed-coating agent.
Embodiment 11: by becoming the oily liquids of transparent and homogeneous after adding again 2 parts of 6 parts of emulsifier, synergist to stir after 8 parts of fludioxonils, 3 parts of naphthoxyacetic acid, 50 parts of complete mixed dissolutions of solvent, filling, can be made into the cream preparation of the present composition.
Embodiment 12: by 12 parts of fludioxonils, 0.5 part of naphthoxyacetic acid, 0.1 part of gibberellic acid, after adding again 2 parts of 8 parts of emulsifier, synergist to stir after 50 parts of complete mixed dissolutions of solvent, become the oily liquids of transparent and homogeneous, filling, can be made into the cream preparation of the present composition.
Embodiment 13: by becoming the oily liquids of transparent and homogeneous after adding again 3 parts of 8 parts of emulsifier, synergist to stir after 18 parts of fludioxonils, 1 part of naphthoxyacetic acid, 50 parts of complete mixed dissolutions of solvent, filling, can be made into the cream preparation of the present composition.
Embodiment 14: by 10 parts of active principle fludioxonils, 1 part of gibberellic acid, 6 parts of dispersants, 10 parts of thickeners, 2 parts of defoamers and 50 parts of mixing of solvent castor oil, after putting into sand milling still and grinding, send into and in mixer for well-distribution, mix the granular preparation that makes the present composition.
Embodiment 17: by 15 parts of active principle fludioxonils, 5 parts of naphthoxyacetic acid, 10 parts of dispersants, 12 parts of thickeners, 1 part of defoamer and 50 parts of mixing of solvent castor oil, after putting into sand milling still and grinding, send into and in mixer for well-distribution, mix the granular preparation that makes the present composition.
Embodiment 18: by 15 parts of active principle fludioxonils, 0.1 part of naphthoxyacetic acid, 0.1 part of gibberellic acid, 10 parts of dispersants, 12 parts of thickeners, 1 part of defoamer and 50 parts of mixing of solvent castor oil, after putting into sand milling still and grinding, send into and in mixer for well-distribution, mix the granular preparation that makes the present composition.
field experiment.
experimental example 1:
1. experiment material
For examination wheat breed, it is No., especially big fringe.
Reagent agent is 5% fludioxonil naphthoxyacetic acid suspension seed-coating agent (research and development centre), wherein fludioxonil 5%, naphthoxyacetic acid 0.1%.
Contrast medicament is that 25g/ rises fludioxonil suspension seed-coating agent (first just reaching) and 10% cyproconazole suspension seed-coating agent (Fengdeng Pesticide Co., Ltd., Jiangsu).
2. experimental technique
2.1 experimental design
Tested in 2012 and experimental field in the sick garden of root rotof flax, carry out in Laiyang Qingdao Agricultural University.Establish altogether 4 processing.Process 1: not dressing, as blank (CK
1); Processing 2:5% fludioxonil naphthoxyacetic acid suspension seed-coating agent dressing, is seed coat agent control group (CK
2); Process 3:25g/ and rise fludioxonil suspension seed-coating agent dressing; Process 4:10% cyproconazole suspension seed-coating agent dressing.
Adopt random district group to arrange, repeat community area 2m for 3 times
2.Every group of seed number equates.
2.2 survey item
Wheat Seedling, investigates the withered rate of seedling seedling of withered death rate, not necrosis and downgrades inhibiting rate.
Root rot preventive effect in seedling stage (%)=[the withered rate of seedling in (the withered rate of seedling of the withered rate-seed coat agent of the seedling processing in contrast field)/contrast field] × 100
Downgrade inhibiting rate (%)=[the average plant height in (the average plant height of average plant height-seed coat agent processing in contrast field)/contrast field] × 100
The wheat strain phase, the investigation root rot incidence of disease.The occurring degree of classification investigation wheat helminthosporium maydis, leaf spot, brown spot and 4 kinds of diseases of rust.
The incidence of disease (%)=(morbidity strain number/investigate total strain number) × 100
Disease index=[∑ (diseased plant numbers at different levels × typical values at different levels)/(investigating total strain number × highest typical value)] × 100
Strain phase diseases control (%)=[(incidence of disease (disease refers to) of the contrast incidence of disease (disease refers to)-seed coat agent processing)/contrast incidence of disease (disease refers to)] × 100
3. experimental result and analysis
The different seed coat agents of table 1 are processed the impact of Wheat Species on Wheat Seedling growth
By upper table experimental result, can be found out, 3 kinds of withered rates of seed coat agent Cotton seeds wheat seedling are all less than blank, and 5% fludioxonil naphthoxyacetic acid FS is minimum.Wherein 5% fludioxonil naphthoxyacetic acid FS processing is the highest to the preventive effect of root rot, reaches 8.74%.Three kinds of seed coat agents only have fludioxonil single dose to have certain dwarfing rate.
The different seed coat agents of table 2 are processed the control efficiency to root rotof flax
As can be seen from Table 2, the incidence of disease of 3 kinds of seed coat agent processing, all lower than blank, illustrates that Cotton seeds all has certain preventive effect to root rotof flax.Wherein 5% fludioxonil naphthoxyacetic acid FS reaches 67.74% to the preventive effect of root rot, and effect is best.
experimental example 2:
1. experiment material
For examination corn variety, it is red beautiful No. 86.
Reagent agent is 10% fludioxonil gibberellic acid suspension seed-coating agent (research and development centre), wherein fludioxonil 9%, gibberellic acid 1%.
Contrast medicament is that 25g/ rises fludioxonil suspension seed-coating agent (first just reaching) and 10% cyproconazole suspension seed-coating agent (Fengdeng Pesticide Co., Ltd., Jiangsu).
2. experimental technique
2.1 experimental design
Tested in 2012 and experimental field in the sick garden of root rotof flax, carry out in Laiyang Qingdao Agricultural University.Establish altogether 4 processing.Process 1: not dressing, as blank (CK
1); Processing 2:10% fludioxonil gibberellic acid suspension seed-coating agent dressing, is seed coat agent control group (CK
2); Process 3:25g/ and rise fludioxonil suspension seed-coating agent dressing; Process 4:10% cyproconazole suspension seed-coating agent dressing.
Adopt random district group to arrange, repeat community area 2m for 3 times
2.Every group of seed number equates.
2.2 survey item
Wheat Seedling, investigates the withered rate of seedling seedling of withered death rate, not necrosis and downgrades inhibiting rate.
Root rot preventive effect in seedling stage (%)=[the withered rate of seedling in (the withered rate of seedling of the withered rate-seed coat agent of the seedling processing in contrast field)/contrast field] × 100
Downgrade inhibiting rate (%)=[the average plant height in (the average plant height of average plant height-seed coat agent processing in contrast field)/contrast field] × 100
The wheat strain phase, the investigation root rot incidence of disease.The occurring degree of classification investigation wheat helminthosporium maydis, leaf spot, brown spot and 4 kinds of diseases of rust.
The incidence of disease (%)=(morbidity strain number/investigate total strain number) × 100
Disease index=[∑ (diseased plant numbers at different levels × typical values at different levels)/(investigating total strain number × highest typical value)] × 100
Strain phase diseases control (%)=[(incidence of disease (disease refers to) of the contrast incidence of disease (disease refers to)-seed coat agent processing)/contrast incidence of disease (disease refers to)] × 100
3. experimental result and analysis
The different seed coat agents of table 3 are processed the impact of Wheat Species on Wheat Seedling growth
By upper table experimental result, can be found out, 3 kinds of withered rates of seed coat agent Cotton seeds wheat seedling are all less than blank, and 10% fludioxonil gibberellic acid FS is minimum.Wherein 5% fludioxonil naphthoxyacetic acid FS processing is the highest to the preventive effect of root rot, reaches 7.94%.Three kinds of seed coat agents only have fludioxonil single dose to have certain dwarfing rate.
The different seed coat agents of table 4 are processed the control efficiency to root rotof flax
As can be seen from Table 4, the incidence of disease of 3 kinds of seed coat agent processing, all lower than blank, illustrates that Cotton seeds all has certain preventive effect to root rotof flax.Wherein 10% fludioxonil gibberellic acid FS reaches 62.56% to the preventive effect of root rot, and effect is best.
Claims (4)
1. a seed dressing that contains fludioxonil, it is characterized in that: in this seed dressing, contain A, two kinds of active principles of B, wherein A component is fludioxonil, B component is at least one in naphthoxyacetic acid, gibberellic acid, all the other components in preparation outside active principle are that agricultural chemicals used additives and preparation are prepared complementary component, in the preparation of this seed dressing, the ratio of weight and number of active principle A and B is 40: 1～0.1: 40, and in seed dressing preparation, the total weight parts of active principle A and B accounts for 1%～80% of whole total formulation weight amount part.
2. a kind of seed dressing that contains fludioxonil according to claim 1, is characterized in that: the ratio of weight and number of active principle A and B more preferably 20: 1～0.1: 10 in the preparation of described seed dressing.
3. a kind of seed dressing that contains fludioxonil according to claim 1, is characterized in that: the percentage that in described seed dressing preparation, the total weight parts of active principle A and B accounts for whole total formulation weight amount part more preferably 1%～25%.
4. a kind of seed dressing that contains fludioxonil according to claim 1, is characterized in that: the pesticidal preparations formulation that described seed dressing can be mixed with is suspension seed-coating agent, missible oil, pulvis, granule.
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| CN105218231A (en) * | 2015-09-24 | 2016-01-06 | 合肥工业大学 | A kind of organic carbon nutrition seed soaking seed dressing and using method thereof |
| CN106508948A (en) * | 2016-10-27 | 2017-03-22 | 山东润博生物科技有限公司 | Suspended seed coating agent containing abamectin and clothianidin and application of suspended seed coating agent |
| CN106942285A (en) * | 2017-04-25 | 2017-07-14 | 新疆天业（集团）有限公司 | A kind of rice seed dressing agent |
| CN107124934A (en) * | 2017-05-22 | 2017-09-05 | 陈高念 | A kind of watermelon seed insect prevention diseases prevention processing method |
| CN108450321A (en) * | 2018-01-26 | 2018-08-28 | 安徽丰德康种业有限公司 | A kind of breeding method of maize seed |
| CN108684418A (en) * | 2018-05-17 | 2018-10-23 | 金华市胤宏农业科技有限公司 | The method for culturing seedlings of cherry |
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| WO2002069715A2 (en) * | 2001-03-06 | 2002-09-12 | Bayer Cropscience Ag | Seed dressing agent |
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| WO2002069715A2 (en) * | 2001-03-06 | 2002-09-12 | Bayer Cropscience Ag | Seed dressing agent |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218231A (en) * | 2015-09-24 | 2016-01-06 | 合肥工业大学 | A kind of organic carbon nutrition seed soaking seed dressing and using method thereof |
| CN106508948A (en) * | 2016-10-27 | 2017-03-22 | 山东润博生物科技有限公司 | Suspended seed coating agent containing abamectin and clothianidin and application of suspended seed coating agent |
| CN106508948B (en) * | 2016-10-27 | 2019-03-26 | 山东润博生物科技有限公司 | A kind of suspension seed-coating agent containing avermectin and clothianidin and its application |
| CN106942285A (en) * | 2017-04-25 | 2017-07-14 | 新疆天业（集团）有限公司 | A kind of rice seed dressing agent |
| CN107124934A (en) * | 2017-05-22 | 2017-09-05 | 陈高念 | A kind of watermelon seed insect prevention diseases prevention processing method |
| CN108450321A (en) * | 2018-01-26 | 2018-08-28 | 安徽丰德康种业有限公司 | A kind of breeding method of maize seed |
| CN108684418A (en) * | 2018-05-17 | 2018-10-23 | 金华市胤宏农业科技有限公司 | The method for culturing seedlings of cherry |
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| CN103749452B (en) | 2016-03-16 |
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