CN103749452B - A kind of seed dressing - Google Patents
A kind of seed dressing Download PDFInfo
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- CN103749452B CN103749452B CN201310729742.3A CN201310729742A CN103749452B CN 103749452 B CN103749452 B CN 103749452B CN 201310729742 A CN201310729742 A CN 201310729742A CN 103749452 B CN103749452 B CN 103749452B
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Abstract
The present invention relates to a kind of seed dressing containing fludioxonil, the active principle that its feature is in this seed dressing is at least one in fludioxonil (A) and (B) naphthoxyacetic acid, gibberellic acid, the ratio of weight and number of active principle A and B is 40: 1 ~ 0.1: 40, can more preferably in 20: 1 ~ 0.1: 10 seed dressing preparations the total weight parts of active principle A and B account for 1% ~ 80% of whole total formulation weight amount part, can more preferably 1% ~ 25%, the pesticidal preparations formulation that this seed dressing can be mixed with is suspension seed-coating agent, missible oil, wetting powder, granule.This seed dressing has remarkable synergistic effect, both the problem that naphthoxyacetic acid, gibberellic acid bactericidal property are weak had been solved, solve again the problem that fludioxonil bactericidal effect reduces gradually, enhance the stability of fludioxonil sterilization under the external environment such as different temperatures, humidity, delay drug-fast generation.
Description
Technical field
The present invention relates to technical field of pesticide combination, be specifically related to a kind of seed dressing containing fludioxonil.
Background technology
Fludioxonil (Fludioxoni) mechanism of action is unique, by the transfer suppressing glucose phosphorylated relevant, and the mycelial growth of Antifungi, finally cause germ dead, with existing bactericide without cross resistance.Its chemical name is: 4-(fluoro-1, the 3-benzodioxolane-4-base of 2,2-bis-) pyrroles-3-nitrile, belongs to the wide-spectrum bactericide of non-internal-absorting.As foliage fungicide for preventing and treating snow rotten Fusariumsp, wheat net bunt bacterium, rhizoctonia solani etc., there is special efficacy to gray mold; As seed treatment: to be mainly used in cereal and fragrant-flowered garlic cereals crop control kind pass and soil-borne disease bacterium as Alternaria, Ascochyta, aspergillus, Fusariumsp bits, long compacted spore consider to be worth doing, 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 its effect in sterilization is more weak.
Gibberellic acid is a broad spectrum activity plant growth regulator, can promote crop growth, makes it premature ripening, improves output, improves quality; The dormancy of the organs such as seed, stem tuber and bulb can be broken rapidly, stratification; Reduce flower bud, flower, bell, the coming off of fruit, improve fruit fruiting rate or form stenospermocarpy.
In modern agricultural production, prior to seeding, peasant generally uses seed dressing to carry out some process, in the hope of reaching wherein one or more objects such as insect protected, diseases prevention, drought resisting, strong sprout to the surface of the seed.Front market existing some adopts Chinese medicine extract as sterilization, disease-resistant environment-friendly type seed dressing, although there is environmental protection characteristic, but do not possess drought resisting, strong sprout function, utilizing the sterilization of microorganism live bacteria, the function of disease and insect resistance in addition, 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, has inhibitory action to Disease.But this type of seed dressing not only production process is complicated, and equipment, factory building require high, and investment is large, and preservation condition requires strict.And have certain requirement to soil moisture due to the activation plays of the microorganisms such as mushroom, and north soil moisture content in spring is poor, the effect extremely unstable of this type of seed dressing, and do not possess drought resisting function.
Various crops seedling stage disease is (as wheat sharp eyespot, Maize Seedling Blight, cotton in seedling stage root disease, Diplodia gossypina etc.) be 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, really a large amount of problem is there is in actual production is promoted the use of, such as Likeming Gel, time suitable happy, seed dressing is two etc. prophylaxis effect, but practical technique is complicated, protection effect is bad, and it is dangerous to crop, a kind of seed coat agent series of products are disclosed in application number 98106559.7, wheat is applicable in this seed coat agent, the sterilization seed coat agent of corn seed is olefin conversion, verify by experiment, actual effect is poor, and sphere of action is narrower, be only applicable to corn, wheat.The carbendazim and the Combination application such as triazolone, the Triadimenol scope that are applicable to cotton 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 containing fludioxonil, Isofenphos methyl belongs to high-toxic organic phosphorus class agricultural chemicals, and both are composite there is no much synergy fruit, substantially forbids at present.
Therefore, in order to adapt to the actual requirement of agricultural production, a kind of applied range, preventive effect is high and research and development that the are novel agrochemical seed dressing of low toxic and environment-friendly type are extremely urgent, I company research staff passes through the long-time research in seed dressing field, compound screening test is done between the high-efficiency environment friendly agricultural chemicals by the different mechanism of action, to solve the fludioxonil single dose problem that preventive effect declines in actual production, after great many of experiments, finally a kind of new bactericidal composition seed dressing is proposed, its principle active component 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 run in above actual production, and time and labour saving, less pollution compared with other pesticide application technology, and up to the present, do not find with fludioxonil and naphthoxyacetic acid through preliminary search, 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 that a kind of broad weed-killing spectrum, herbicidal effect are good, use safety, advantageously in the seed dressing of environmental protection, pass with a large amount of soil better preventing and treating the series 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 containing fludioxonil, its feature is in this seed dressing containing A, B two kinds of active principles, wherein component A is fludioxonil, B component is at least one in naphthoxyacetic acid, gibberellic acid, all the other components in preparation outside active principle are that complementary component prepared by agricultural chemicals used additives and preparation, 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 A1 ~ 40
Active principle B0.1 ~ 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 by active principle A and active principle B and the mixing of dispersant, wetting agent and filler, uniform stirring in stirred tank, mixing after airslide disintegrating mill, namely 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 A1 ~ 40
Active principle B0.1 ~ 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 supplies 100 parts.
The concrete production stage of this suspension seed-coating agent is in high-shear emulsifying dispersion machine, the effective constituents A of metering is added by proportioning, 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 for above-mentioned mixed liquor amount to be added in ball mill ball milling 1.5 ~ 3 hours, add the aqueous solution adjusting viscosity that suspending agent is made into, after mixing and stirring, namely 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 A1 ~ 40
Active principle B0.1 ~ 40
Emulsifier 8 ~ 20
Solvent 15 ~ 50
Synergist 1 ~ 5.
The concrete production stage of this cream preparation be first active principle A, B to be added in solvent dissolve completely after add emulsifier again, synergist becomes transparent and homogeneous oily liquids after stirring, filling, namely 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 A1 ~ 40
Active principle B0.1 ~ 40
Wetting dispersing agent 1 ~ 20
Thickener 1 ~ 15
Defoamer 1 ~ 5
Castor oil supplies 100 parts.
By active principle A, B, each components such as dispersant, thickener, defoamer and solvent, in the ratio mixing of formula, after putting into the grinding of sand milling still, are sent into mixing in mixer for well-distribution and are namely obtained the granular preparation of the present composition.
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, at least one pulled open in powder copper rosinate X., wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene tri-styryl 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 regulator is at least one in sodium hydroxide, potassium hydroxide, ammoniacal liquor, hydrochloric acid, acetic acid, phosphoric acid or citric acid.
Above-described colouring agent and warning colouration are acid red as fire or Acid Red Bs.
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 carrying out Cotton seeds to the seed of soybean, peanut, corn, wheat, paddy rice, cotton, cowpea, watermelon, sunflower and ornamental flower, pass with a large amount of soil better preventing and treating the series 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 the problem that naphthoxyacetic acid, gibberellic acid bactericidal property are weak had been solved, solve again the problem that fludioxonil bactericidal effect reduces gradually, enhance the stability of fludioxonil sterilization under the external environment such as different temperatures, humidity; The second, obviously delay the drug-fast generation of crop, decreased agricultural chemicals Reusability number of times, reduce Pesticide use amount, reduce agricultural cost; 3rd, seed dressing of the present invention is while bactericidal effect significantly improves, and drought resisting, strong sprout etc., several object reached simultaneously, improves the output of crop and the quality of fruit.4th, this seed dressing toxicity is little, residual quantity is low, is more beneficial to environmental protection, improves 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 clearly understand, the following specific embodiment of the present invention is described, but the present invention is only limitted to absolutely not these examples.The present invention adopts the method for field trial.If no special instructions, the ratio (comprising percentage) below mentioned is all ratio of weight and number.
Embodiment 1: by fludioxonil 2 parts, naphthoxyacetic acid 0.5 part, dispersant 8 parts, wetting agent 8 parts and filler 82 parts mixing, uniform stirring in stirred tank, is mixing after airslide disintegrating mill, the i.e. wetting powder of obtained seed dressing of the present invention.
Embodiment 2: by fludioxonil 5 parts, gibberellic acid 0.5 part, dispersant 8 parts, wetting agent 7 parts and filler 80 parts mixing, uniform stirring in stirred tank, is mixing after airslide disintegrating mill, the i.e. wetting powder of obtained seed dressing of the present invention.
Embodiment 3: by fludioxonil 10 parts, naphthoxyacetic acid 1 part, gibberellic acid 0.1 part, dispersant 10 parts, wetting agent 10 parts and filler 69 parts mixing, uniform stirring in stirred tank, is mixing after airslide disintegrating mill, i.e. the wetting powder of obtained seed dressing of the present invention.
Embodiment 4: the powder materials such as fludioxonil 1 part, naphthoxyacetic acid 0.1 part, filler 5 parts, colouring agent 0.5 part, anticaking agent 1 part are added after mixing 30min in the homogenizer that deionized water is housed, add the liquid charging stocks such as dispersant 6 parts, film forming agent 1 part, antifreezing agent 1 part, preservative 1 part successively, mix 10 ~ 15min again, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified, dispersion under the condition of airtight, pressurization, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, add suspending agent, discharging after grinding 2 ~ 3 times, obtaining the flowable suspension liquid of magneta colour through sieving, after packing, weighing, pack and obtain suspension seed-coating agent.
Embodiment 5: the powder materials such as fludioxonil 5 parts, naphthoxyacetic acid 1 part, filler 8 parts, colouring agent 0.5 part, anticaking agent 1 part are added after mixing 30min in the homogenizer that deionized water is housed, add the liquid charging stocks such as dispersant 7 parts, film forming agent 1 part, antifreezing agent 1 part, preservative 1 part successively, mix 10 ~ 15min again, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified, dispersion under the condition of airtight, pressurization, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, add suspending agent, discharging after grinding 2 ~ 3 times, obtaining the flowable suspension liquid of magneta colour through sieving, after packing, weighing, pack and obtain suspension seed-coating agent.
Embodiment 6: the powder materials such as fludioxonil 15 parts, naphthoxyacetic acid 5 parts, filler 8 parts, colouring agent 1 part, anticaking agent 1 part are added after mixing 30min in the homogenizer that deionized water is housed, add the liquid charging stocks such as dispersant 13 parts, film forming agent 1 part, antifreezing agent 1 part, preservative 1 part successively, mix 10 ~ 15min again, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified, dispersion under the condition of airtight, pressurization, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, add suspending agent, discharging after grinding 2 ~ 3 times, obtaining the flowable suspension liquid of magneta colour through sieving, after packing, weighing, pack and obtain suspension seed-coating agent.
Embodiment 7: the powder materials such as fludioxonil 10 parts, gibberellic acid 2 parts, filler 10 parts, colouring agent 1 part, anticaking agent 1 part are added after mixing 30min in the homogenizer that deionized water is housed, add the liquid charging stocks such as dispersant 15 parts, film forming agent 1 part, antifreezing agent 1 part, preservative 1 part successively, mix 10 ~ 15min again, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified, dispersion under the condition of airtight, pressurization, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, add suspending agent, discharging after grinding 2 ~ 3 times, obtaining the flowable suspension liquid of magneta colour through sieving, after packing, weighing, pack and obtain suspension seed-coating agent.
Embodiment 8: the powder materials such as fludioxonil 20 parts, gibberellic acid 0.5 part, filler 10 parts, colouring agent 1 part, anticaking agent 1 part are added after mixing 30min in the homogenizer that deionized water is housed, add the liquid charging stocks such as dispersant 15 parts, film forming agent 1 part, antifreezing agent 1 part, preservative 1 part successively, mix 10 ~ 15min again, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified, dispersion under the condition of airtight, pressurization, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, add suspending agent, discharging after grinding 2 ~ 3 times, obtaining the flowable suspension liquid of magneta colour through sieving, after packing, weighing, pack and obtain suspension seed-coating agent.
Embodiment 9: the powder materials such as fludioxonil 10 parts, gibberellic acid 10 parts, filler 10 parts, colouring agent 1 part, anticaking agent 1 part are added after mixing 30min in the homogenizer that deionized water is housed, add the liquid charging stocks such as dispersant 15 parts, film forming agent 1 part, antifreezing agent 1 part, preservative 1 part successively, mix 10 ~ 15min again, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified, dispersion under the condition of airtight, pressurization, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, add suspending agent, discharging after grinding 2 ~ 3 times, obtaining the flowable suspension liquid of magneta colour through sieving, after packing, weighing, pack and obtain suspension seed-coating agent.
Embodiment 10: by fludioxonil 10 parts, gibberellic acid 0.1 part, naphthoxyacetic acid 0.1 part, after the powder materials such as filler 10 parts, colouring agent 1 part, anticaking agent 1 part add and mix 30min in the homogenizer that deionized water is housed, add the liquid charging stocks such as dispersant 12 parts, film forming agent 1 part, antifreezing agent 1 part, preservative 1 part successively, mix 10 ~ 15min again, form premix slurry.In the high-shear emulsifying dispersion machine that the extracting of premix slurry is arrived, fully emulsified, dispersion under the condition of airtight, pressurization, make premix slurry more evenly, refinement.Then this slurry is pumped in ball mill by pipeline and separate pump, add suspending agent, discharging after grinding 2 ~ 3 times, obtaining the flowable suspension liquid of magneta colour through sieving, after packing, weighing, pack and obtain suspension seed-coating agent.
Embodiment 11: add emulsifier 6 parts, synergist 2 parts become transparent and homogeneous oily liquids after stirring again by after fludioxonil 8 parts, naphthoxyacetic acid 3 parts, solvent 50 parts of complete mixed dissolutions, filling, namely can be made into the cream preparation of the present composition.
Embodiment 12: by fludioxonil 12 parts, naphthoxyacetic acid 0.5 part, gibberellic acid 0.1 part, emulsifier 8 parts, synergist 2 parts become transparent and homogeneous oily liquids after stirring is added again after solvent 50 parts of complete mixed dissolutions, filling, namely can be made into the cream preparation of the present composition.
Embodiment 13: add emulsifier 8 parts, synergist 3 parts become transparent and homogeneous oily liquids after stirring again by after fludioxonil 18 parts, naphthoxyacetic acid 1 part, solvent 50 parts of complete mixed dissolutions, filling, namely can be made into the cream preparation of the present composition.
Embodiment 14: by active principle fludioxonil 10 parts, gibberellic acid 1 part, dispersant 6 parts, thickener 10 parts, defoamer 2 parts and solvent castor oil 50 parts mixing, after putting into the grinding of sand milling still, send into the mixing i.e. granular preparation of the obtained present composition in mixer for well-distribution.
Embodiment 17: by active principle fludioxonil 15 parts, naphthoxyacetic acid 5 parts, dispersant 10 parts, thickener 12 parts, defoamer 1 part and solvent castor oil 50 parts mixing, after putting into the grinding of sand milling still, send into the mixing i.e. granular preparation of the obtained present composition in mixer for well-distribution.
Embodiment 18: by active principle fludioxonil 15 parts, naphthoxyacetic acid 0.1 part, gibberellic acid 0.1 part, dispersant 10 parts, thickener 12 parts, defoamer 1 part and solvent castor oil 50 parts mixing, after putting into the grinding of sand milling still, send into the mixing i.e. granular preparation of the obtained present composition in mixer for well-distribution.
field experiment.
experimental example 1:
1. experiment material
Examination wheat breed is supplied to be No. one, 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
Test and carried out in Laiyang Qingdao Agricultural University experimental field sick garden of root rotof flax in 2012.Establish 4 process altogether.Process 1: not dressing, as blank (CK
1); Process 2:5% fludioxonil naphthoxyacetic acid suspension seed-coating agent dressing is seed coat agent control group (CK
2); Process 3:25g/ rises fludioxonil suspension seed-coating agent dressing; Process 4:10% cyproconazole suspension seed-coating agent dressing.
Adopt the group arrangement of random district, repeat for 3 times, plot area 2m
2.Often organize seed number equal.
2.2 survey item
Wheat Seedling, investigates withered death rate, the not downright bad withered rate of seedling seedling and downgrades inhibiting rate.
Root rot preventive effect in seedling stage (%)=[the withered rate of seedling in (the withered rate of seedling of the seedling withered rate-seed coat agent process in contrast field)/contrast field] × 100
Downgrade inhibiting rate (%)=[the average plant height in (the average plant height of the average plant height-seed coat agent process in contrast field)/contrast field] × 100
Wheat Adult plant, the investigation root rot incidence of disease.The occurring degree of classification investigation wheat helminthosporium maydis, leaf spot, brown spot and rust 4 kinds of diseases.
The incidence of disease (%)=(morbidity strain number/investigate total strain number) × 100
Disease index=[∑ (diseased plant number at different levels × typical value at different levels)/(investigating total strain number × highest typical value)] × 100
Adult plant diseases control (%)=[(incidence of disease (disease refers to) of the contrast incidence of disease (disease refers to)-seed coat agent process)/contrast incidence of disease (disease refers to)] × 100
3. experimental result and analysis
The impact that table 1 different seed coat agent process Wheat Species grows Wheat Seedling
As can be seen from upper table experimental result, 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 the preventive effect of 5% fludioxonil naphthoxyacetic acid FS process to root rot is the highest, reaches 8.74%.Three kinds of seed coat agents only have fludioxonil single dose to there is certain dwarfing rate.
The different seed coat agent process of table 2 is to the control efficiency of root rotof flax
As can be seen from Table 2, the incidence of disease of 3 kinds of seed coat agent process, all lower than blank, illustrates that Cotton seeds all has certain preventive effect to root rotof flax.Wherein the preventive effect of 5% fludioxonil naphthoxyacetic acid FS to root rot reaches 67.74%, and effect is best.
experimental example 2:
1. experiment material
Examination corn variety is supplied to be 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
Test and carried out in Laiyang Qingdao Agricultural University experimental field sick garden of root rotof flax in 2012.Establish 4 process altogether.Process 1: not dressing, as blank (CK
1); Process 2:10% fludioxonil gibberellic acid suspension seed-coating agent dressing is seed coat agent control group (CK
2); Process 3:25g/ rises fludioxonil suspension seed-coating agent dressing; Process 4:10% cyproconazole suspension seed-coating agent dressing.
Adopt the group arrangement of random district, repeat for 3 times, plot area 2m
2.Often organize seed number equal.
2.2 survey item
Wheat Seedling, investigates withered death rate, the not downright bad withered rate of seedling seedling and downgrades inhibiting rate.
Root rot preventive effect in seedling stage (%)=[the withered rate of seedling in (the withered rate of seedling of the seedling withered rate-seed coat agent process in contrast field)/contrast field] × 100
Downgrade inhibiting rate (%)=[the average plant height in (the average plant height of the average plant height-seed coat agent process in contrast field)/contrast field] × 100
Wheat Adult plant, the investigation root rot incidence of disease.The occurring degree of classification investigation wheat helminthosporium maydis, leaf spot, brown spot and rust 4 kinds of diseases.
The incidence of disease (%)=(morbidity strain number/investigate total strain number) × 100
Disease index=[∑ (diseased plant number at different levels × typical value at different levels)/(investigating total strain number × highest typical value)] × 100
Adult plant diseases control (%)=[(incidence of disease (disease refers to) of the contrast incidence of disease (disease refers to)-seed coat agent process)/contrast incidence of disease (disease refers to)] × 100
3. experimental result and analysis
The impact that table 3 different seed coat agent process Wheat Species grows Wheat Seedling
As can be seen from upper table experimental result, 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 the preventive effect of 5% fludioxonil naphthoxyacetic acid FS process to root rot is the highest, reaches 7.94%.Three kinds of seed coat agents only have fludioxonil single dose to there is certain dwarfing rate.
The different seed coat agent process of table 4 is to the control efficiency of root rotof flax
As can be seen from Table 4, the incidence of disease of 3 kinds of seed coat agent process, all lower than blank, illustrates that Cotton seeds all has certain preventive effect to root rotof flax.Wherein the preventive effect of 10% fludioxonil gibberellic acid FS to root rot reaches 62.56%, and effect is best.
Claims (1)
1. the seed dressing containing fludioxonil, it is characterized in that: containing A in this seed dressing, B two kinds of active principles, wherein component A is fludioxonil, B component is naphthoxyacetic acid, at least one in gibberellic acid, all the other components in preparation outside active principle are that complementary component prepared by agricultural chemicals used additives and preparation, in the preparation of this seed dressing, the ratio of weight and number of active principle fludioxonil and naphthoxyacetic acid is 5: 0.1, the ratio of weight and number of fludioxonil and gibberellic acid is 9: 1, in seed dressing preparation, the total weight parts of active principle A and B accounts for 1% ~ 25% of whole total formulation weight amount part, the pesticidal preparations formulation that seed dressing can be mixed with is suspension seed-coating agent, missible oil, pulvis, granule.
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| CN103749452B true CN103749452B (en) | 2016-03-16 |
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| CN105218231B (en) * | 2015-09-24 | 2018-08-03 | 合肥工业大学 | A kind of organic carbon nutrition seed soaking seed dressing and its application method |
| 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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| 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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| 不同浓度赤霉素和适乐时处理对茄子种子萌发的影响;王利英 等;《天津农业科学》;20111231;第17卷(第4期);第55-56页 * |
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