CN107094766A - A kind of seed treatment - Google Patents
A kind of seed treatment Download PDFInfo
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- CN107094766A CN107094766A CN201710329041.9A CN201710329041A CN107094766A CN 107094766 A CN107094766 A CN 107094766A CN 201710329041 A CN201710329041 A CN 201710329041A CN 107094766 A CN107094766 A CN 107094766A
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- Prior art keywords
- seed treatment
- mandestrobin
- fludioxonil
- seed
- active ingredient
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of seed treatment, its active ingredient is mandestrobin and fludioxonil, and both mass ratioes are 1：50‑50：1, active ingredient gross mass percentage composition is 1% 60%.The present invention in seed treatment, can play keep a full stand of seedings, strong sprout, improve resistance, effect of integrated control sprout term disease, reach protect production, volume increase purpose.Simultaneously seed treatment be it is underground concealed use, target clearly, focus on, be conducive to environment, ecological protection, time saving, laborsaving, saving of labor protrudes, with significant economic and social profit.
Description
Technical field
The present invention relates to a kind of seed treatment, belong to field of pesticide preparation.
Background technology
Mandestrobin is the methoxy acrylic bactericide of SUMITOMO CHEMICAL exploitation, is that cytochrome b c1 is combined
Thing inhibitor, the features such as with wide spectrum, interior suction, preventative pesticide supplying effect is optimal, develops into seed treatment and can be used for prevention beautiful
As rotting caused by rhizoctonia and Fusarium, the disease such as wither on the crop such as rice, soybean and rape, consumption is 15-26g/
100kg seeds, excellent, market potential is huge.It is that extension uses the longevity as far as possible as a pesticide species newly developed
Life, carries out compounding exploitation, so as to delay pathogen to develop immunity to drugs from the medicament of other different mechanisms of action.
Fludioxonil, english common name：Fludioxoni, belongs to phenylpyrrole series bactericidal agent, with strong permeability and length
Lasting period, by suppressing mitogen activated protein kinases so as to suppress conidial sprouting, limitation tube, mycelia give birth to
It is long.Passed and soil-borne disease bacterium such as Alternaria, Fusarium, silk core suitable for being planted in the various crops such as cereal, industrial crops and lawn
Pseudomonas etc., is the seed treatment commonly used in current agricultural production, is widely used.
At present, there is not yet fludioxonil carries out the relevant report of seed treatment exploitation with mandestrobin.
The content of the invention
It is an object of the invention to provide a kind of seed treatment, effectively control is contributed to be drawn by Rhizoctonia, reaping hook category
The diseases, especially root rot and corn stalk rot disease such as seed root-rot, stem rot, fruit corruption are played, with obvious synergistic effect.
To realize the purpose of the present invention, the present invention is adopted the following technical scheme that：
A kind of seed treatment, containing active ingredient mandestrobin and fludioxonil, both mass ratioes are 1：50-
50：1；Preferred mass ratio is 1:10-10:1；More preferably mass ratio is 1：5-5：1.
The gross mass percentage composition of active ingredient is 1%-60% in the seed treatment.
The seed treatment can be prepared with conventional method, i.e. the active compound containing active ingredient and suitable auxiliary agent, can be with
Any seed treatment agriculturally allowed is processed into, preferable formulation has suspension seed-coating agent, seed treatment emulsion, seed treatment
The dispersible granula of dispersible pulvis, seed treatment, seed treatment microcapsule suspending agent or seed treatment dry powder doses.
The auxiliary agent that the seed treatment is used includes dispersion moisture agent, emulsifying agent, solvent, disintegrant, filler, cyst wall material
Material (aqueous/oiliness), catalyst, thickener, film forming agent, antifreezing agent, defoamer, preservative and other it is beneficial to active ingredient
Stablize in the formulation and known substance that drug effect is played, be all the various composition commonly used in pesticidal preparations or allow to use, and
It is not particularly limited.
In order to ensure stably dispersing between particles of active components, its phase inter coagulation is prevented, seed treatment of the present invention is also
Including wetting dispersing agent, the dispersion moisture agent is preferably AEO, APES, polyoxyethylene
Aliphatic acid, alkylaryl polyglycol ether, alkylsulfonate, arylsulphonate, fatty acid polyglycol ethylene glycol, DBSA
Salt, polyoxyethylene groups phenol formaldehyde condensate, polyoxyethylene poly-oxygen propylene aether block copolymer, naphthalene or alkyl naphthalene formaldehyde synthesis sulphur
Hydrochlorate, aliphatic alcohol polyoxyethylene sulfonate, APES sulfonate, lignin and its derivative sulfonate, fat
In fat acid ethane addition phosphate, APES phosphate, APES formaldehyde condensation products sulfat
One or more kinds of combinations.
Seed and root are acted in order to ensure that limited farm chemical ingredients are concentrated, it is difficult for drop-off and disperse, reduce agricultural chemicals and exist
Diffusion in environment and the contact to non-target organism, the seed treatment also need to include film forming agent.The film forming agent
It should ensure into that clothing film is ventilative, good water permeability, normal seed germination growth ensures that institute is insoluble in water, clothing film into clothing film again
Active component can slowly discharge, and efficiency time is long.Film forming agent of the present invention is preferably Arabic gum, animal glue, pectin, xanthan
Glue, methylcellulose, ethyl cellulose, sodium carboxymethylcellulose, hydroxypropyl cellulose, sodium alginate, polyvinyl alcohol, poly- second two
Combination more than one or both of alcohol, polyvinylpyrrolidone, polyacrylamide, Sodium Polyacrylate.
Colouring agent is also known as alert toner, and can improve seed treatment uses safety, and colouring agent of the present invention is preferably
Basic rhodamine, aqueous rhodo, acid scarlet, Dycofast, ARCY, Fluorescein red5B, Red-8110, Red-
131st, combination more than one or both of FGR-131.
Seed treatment of the present invention also includes thickener, to improve the viscosity of decentralized medium, reduces the sedimentation of particle
Speed, so as to improve the stability of preparation.Thickener of the present invention is preferably xanthans, Arabic gum, methylcellulose, carboxylic
Methylcellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, PAA, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidine
Combination more than one or both of ketone, polyacrylamide, Sodium Polyacrylate, aluminium-magnesium silicate, bentonite.
For the stability for the low-temperature storage for improving seed treatment, seed treatment of the present invention also added antifreeze
Agent.It is preferred that, the antifreezing agent is one kind in ethylene glycol, propane diols, glycerine, urea, ammonium sulfate, sodium chloride, calcium chloride
Or two or more combinations.
Defoamer of the present invention is preferably organosilicon ketone, C8-10Fatty alcohol, C10-20Saturated fatty acid and its ester
One or more kinds of combination in class.
Preservative of the present invention is preferably benzoic acid, benzaldehyde, sodium benzoate, Potassium Benzoate, sorbic acid, salicylic acid
Combination more than one or both of sodium, 2- xenols, parahydroxyben-zaldehyde 1,2-[4-morpholinodithio quinoline -3- ketone.
Solvent of the present invention be preferably toluene, dimethylbenzene, solvent naphtha S-150, solvent naphtha S-200, ethanol, isopropanol,
N-butanol, n-octyl alcohol, n-amyl alcohol, acetone, cyclohexanone, hexane, dimethylformamide, 1-METHYLPYRROLIDONE, acetonitrile, dichloromethane
Combination more than one or both of alkane, ethyl acetate, methyl oleate, dibutyl phthalate.
Emulsifying agent of the present invention is preferably agriculture breast 600# (phenethyl phenol polyethenoxy ether), agriculture breast 1601# (phenethyl phenols
Polyoxyethylene poly-oxygen propylene aether), agriculture breast 500# (calcium dodecyl benzene sulfonate), the serial phosphate (NPEs of OP
Phosphate), 600# phosphates (phenyl phenol polyoxyethanyl ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl
Ether disulfonic acid magnesium salts, triethanolamine salt, agriculture breast 400# (styryl formaldehyde resin APEO), Nongru-700 # (alkyl phenols
Formaldehyde resin APEO), agriculture breast 36# (phenethyl phenol formaldehyde resin polyoxyethyl ether), agriculture breast 1600# (phenethyl phenol gather
Oxygen vinethene polyethenoxy ether), ethylene oxide-propylene oxide block copolymer, agriculture breast 33# (alkylaryl polyoxypropylene polyoxies
Vinethene), agriculture breast 34# (alkylaryl polyoxyethylene poly-oxygen propylene aether), Span series (sorbitan monostearate), tween
One or both of serial (sorbitan fatty acid ester APEO), AEO serial (fat alcohol alcohol APEO) with
On combination.
Disintegrant of the present invention is preferably bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, bicarbonate
Combination more than one or both of sodium.
Filler of the present invention be preferably White Carbon black, kaolin, precipitated calcium carbonate, talcum powder, montmorillonite, float stone, brickbat,
Combination more than one or both of sepiolite, non-adsorbent calcium soil, diatomite, bentonite, attapulgite, starch.
Oiliness cyst material of the present invention be preferably toluene di-isocyanate(TDI), 4,4- diphenylmethyls wash diisocyanate,
1,6 one six methylene phenylene diisocyanate, many methylene benzene polyisocyanates or aliphatic diisocyanate, the isocyanic acid of aliphatic three
Combination more than one or both of ester, aliphatic polymeric isocyanate.
Water-soluble cyst material of the present invention is preferably ethylenediamine, propane diamine, diethylene glycol, diethylenetriamine, three second
Combination more than one or both of hydramine or urea resin prepolymer, melamine resin prepolymer.
The seed treatment on Different Crop is prevented and treated as dampinging off caused by Rhizoctonia, to found withered, root-rot, line withered etc.
The diseases such as root-rot, withered, fruit corruption caused by disease and Fusarium have very outstanding control effect, are particularly suitable for use in
Root-rot and stem rot.
Seed treatment of the present invention compared with prior art, can at least produce following beneficial effect：
(1), can be effective with notable synergistic effect after two kinds of active components is compounded according to the above ratio in the present composition
Delay the drug-fast generation of pathogen；
(2) production Pesticides usage amount and access times, reduction production and use cost are effectively reduced, further effectively
Reduce environmental pollution and residues of pesticides.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment in the present invention
Appearance is described further, but the present invention is limited to absolutely not these examples.
After the pesticide active ingredient mixing of different types of structure, three kinds of type of action, i.e. summation action, increasing are typically exhibited
Effect is acted on and antagonism, but is specially which kind of effect, it is impossible to predicted, only just be can know that by substantial amounts of experiment.
Assays Example 1：Mandestrobin compounds the Toxicity Determination to pathogen of soybean root rot with fludioxonil
Experiment
Subjects：Fusarium oxysporum (Fusarium oxysporum)
Test method：
Determined (with reference to NY/T 1156.2-2006) using growth rate method.From the colony edge newly cultivated with a diameter of
9mm card punch prepares bacterium dish, is inoculated on the culture medium of different agents in (PDA culture medium), a piece of per ware.With not adding medicine
Culture medium is blank control, and often processing sets 4 repetitions.It is placed in culture in 25 DEG C of insulating boxs and is more than 6cm to control bacterium colony diameter
When measure the colony diameter of each processing, calculate growth inhibition ratio.
Growth inhibition ratio (%)=【(control colony diameter-bacterium dish diameter)-(processing colony diameter-bacterium dish diameter)】/ (right
According to colony diameter-bacterium dish diameter) × 100%.
Statistical analysis is carried out with DPS statistical analysis softwares, the EC of each medicament is calculated50, and mixture is calculated according to the abundant methods of Sun Yun
Co-toxicity coefficient (CTC).
The calculation formula of co-toxicity coefficient is as follows：
Survey toxicity index (ATI)=(standard agent EC50/ reagent agent EC50)×100
In theoretical toxicity index (TTI)=A medicaments ATI × mixture in A percentage composition+B medicaments ATI × mixture B hundred
Divide content
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100
When CTC≤80, then composition shows as antagonism, as 80 ＜ CTC ＜ 120, then composition shows as being added and made
With when CTC >=120, then composition shows as synergistic effect.Toxicity Determination is the results detailed in Table 1.
The mandestrobin of table 1 compounds the Toxicity Determination result of the test to pathogen of soybean root rot with fludioxonil
Toxicity Determination result of the test shows in table 1, and mandestrobin is compounded 1 with fludioxonil:50-50:1 proportioning
In the range of 120 are all higher than to the toxicity test co-toxicity coefficient of pathogen of soybean root rot, show as synergistic effect.Particularly match 1:
5-5:When between 1, listed proportioning co-toxicity coefficient is above 200, and synergistic effect is most obvious.
Assays Example 2：Mandestrobin is compounded with fludioxonil and the indoor virulence of Causal Organism of Maize Basal Stalk bacterium is surveyed
Fixed experiment
Subjects：Fusarium graminearum (Fusarium graminearum)
Test method：
Determined (with reference to NY/T 1156.2-2006) using growth rate method.From the colony edge newly cultivated with a diameter of
9mm card punch prepares bacterium dish, is inoculated on the culture medium of different agents in (PDA culture medium), a piece of per ware.With not adding medicine
Culture medium is blank control, and often processing sets 4 repetitions.It is placed in culture in 25 DEG C of insulating boxs and is more than 6cm to control bacterium colony diameter
When measure the colony diameter of each processing, calculate growth inhibition ratio.
CTC (co-toxicity coefficient) uses the abundant methods of Sun Yun, with specific reference to method described in Assays Example 1.
The mandestrobin of table 2 compounds the Toxicity Determination result of the test to Causal Organism of Maize Basal Stalk bacterium with fludioxonil
Toxicity Determination result of the test shows in table 2, and mandestrobin is compounded 1 with fludioxonil:50-50:1 proportioning
In the range of 120 are all higher than to the toxicity test co-toxicity coefficient of Causal Organism of Maize Basal Stalk bacterium, show as synergistic effect.Particularly match
1:5-5:When between 1, listed proportioning co-toxicity coefficient is above 200, and synergistic effect is most obvious.
To more fully understand invention essence, the technology contents of invention are described in detail with example below, but the present invention is not
It is confined to this.Percentage in the following example is the score of quality hundred in preparation.
Example of formulations 1：
The dispersible granula of 51%mandestrobin ﹒ fludioxonil seed treatments
Mandestrobin active compounds, fludioxonil active compound and corresponding additive are well mixed by above-mentioned formula, ultra micro air-flow is used
Pulverizer is crushed, then is mediated, then add granulated, dried in fluidized-bed granulation dryer, sieve after through sampling analysis, i.e.,
Obtain the dispersible granula of 51%mandestrobin ﹒ fludioxonil seed treatments.
The mass ratio of mandestrobin and fludioxonil can be 50 in the present embodiment：1~1：Change between 50, Liang Zhezong
Weight/mass percentage composition be still 51%, form new embodiment.
Example of formulations 2：
51%mandestrobin ﹒ fludioxonil seed treatment dispersible pulvis
Mandestrobin active compounds, fludioxonil active compound and corresponding additive are mixed by above-mentioned formula, it is uniform in stirred tank
Stirring, after being well mixed through airslide disintegrating mill, produces 51%mandestrobin ﹒ fludioxonil seed treatment dispersible pulvis.
The mass ratio of mandestrobin and fludioxonil can be 50 in the present embodiment：1~1：50 (examples 50：1、10：1、1：
1、1：10、1:50) change between, both total weight/mass percentage compositions are still 51%, form new embodiment.
Example of formulations 3：
22%mandestrobin ﹒ fludioxonil seed treatment microcapsule suspending agents
Organosilicon ketone (defoamer)
According to above-mentioned formula mandestrobin and fludioxonil active compound, S-200 solvent naphthas, cyst material, emulsifying agent and
Film forming agent is configured to oil phase；Water, dispersant and colouring agent are configured to aqueous phase, are added to oil phase under conditions of homogenizer unlatching
Emulsion is made in aqueous phase；Afterwards emulsion is transferred to stir in curing kettle and cured, 0-0.2% weight is added in maturing process
(example 0%, 0.1%, 0.2%) organosilicon ketone defoamer, slaking reaction terminates to produce 22%mandestrobin ﹒ fludioxonil kinds
Subprocessing microcapsule suspending agent.
The mass ratio of mandestrobin and fludioxonil can be 50 in the present embodiment：1~1：50 (examples 50：1、10：1、1：
1、1：10、1:50) change between, both total weight/mass percentage compositions are still 22%, form new example of formulations.
Example of formulations 4：
11%mandestrobin ﹒ fludioxonil seed treatment emulsions
Quantitative water, colouring agent, antifreezing agent, film forming agent, thickener, preservative are first added in Scattered Kettle by above-mentioned formula
Stirred composition aqueous phase, and quantitative mandestrobin is added in material-compound tank and fludioxonil active compound, solvent and emulsifying agent are stirred
Uniform composition oil phase is mixed, oil phase is then added dropwise to aqueous phase under the conditions of high speed shear, it is scattered to produce 11% within 0.5-1 hours
Mandestrobin ﹒ fludioxonil seed treatment emulsions.
The mass ratio of mandestrobin and fludioxonil can be 50 in this example of formulations：1~1：50 (examples 50：1、10：
1、1：1、1：10、1:50) change between, both total weight/mass percentage compositions are still 11%, form new embodiment.
Example of formulations 5：
6%mandestrobin ﹒ fludioxonil seed treatment dry powder doses
First the mandestrobin after heating and fludioxonil active compound are sprayed into stir in filler and female powder is made, so
Other materials after coarse crushing and the female powder got ready are put into blender according to proportioning afterwards and are sufficiently mixed uniformly, finally handle
Well-mixed seed coat agent, which is added, is crushed to required particle diameter into airslide disintegrating mill, you can obtains 6%mandestrobin ﹒ and coughs up
Bacterium nitrile seed treatment dry powder doses.
The mass ratio of mandestrobin and fludioxonil can be 50 in the present embodiment：1~1：50 (examples 50：1、10：1、1：
1、1：10、1:50) change between, both total weight/mass percentage compositions are still 6%, form new embodiment.
Example of formulations 6：
24%mandestrobin ﹒ fludioxonil suspension seed-coating agents
According to above-mentioned formula, in the dispersion tank of high speed agitator is had, active compound and auxiliary agent are dispersed in water, coarse crushing
Active compound；This mixture through coarse crushing is continually fed into grater with constant displacement pump, carried out finely pulverized；With medium point
Material from, discharge sends into last blending tank, the xanthan gum solution modulated in addition is added blending tank, with the material crushed
Equably mix, obtain 24%mandestrobin ﹒ fludioxonil suspension seed-coating agents.
The mass ratio of mandestrobin and fludioxonil can be 50 in the present embodiment：1~1：50 (examples 50：1、10：1、1：
1、1：10、1:50) change between, both total weight/mass percentage compositions are still 24%, form new embodiment.
Example of formulations 7：
The dispersible granula of 60%mandestrobin ﹒ fludioxonil seed treatments
Mandestrobin active compounds, fludioxonil active compound and corresponding additive are well mixed by above-mentioned formula, ultra micro air-flow is used
Pulverizer is crushed, then is mediated, then add granulated, dried in fluidized-bed granulation dryer, sieve after through sampling analysis, i.e.,
Obtain the dispersible granula of 60%mandestrobin ﹒ fludioxonil seed treatments.
The mass ratio of mandestrobin and fludioxonil can be 50 in the present embodiment：1~1：50 (examples 50：1、10：1、1：
1、1：10、1:50) change between, both total weight/mass percentage compositions are still 60%, form new embodiment.
Example of formulations 8：
8%mandestrobin fludioxonil suspension seed-coating agents
According to above-mentioned formula, in the dispersion tank of high speed agitator is had, active compound and auxiliary agent are dispersed in water, coarse crushing
Active compound；This mixture through coarse crushing is continually fed into grater (wet grinding) with constant displacement pump, carried out finely pulverized；
The material separated with medium, discharged sends into last blending tank, the xanthan gum solution modulated in addition is added blending tank, with powder
Broken material is equably mixed, and obtains 8%mandestrobin ﹒ fludioxonil suspension seed-coating agents.
The mass ratio of mandestrobin and fludioxonil can be 50 in the present embodiment：1~1：50 (examples 50：1、10：1、1：
1、1：10、1:50) change between, both total weight/mass percentage compositions are still 8%, form new embodiment.
Application Example 1：Mandestrobin is compounded with fludioxonil to be influenceed on corn seed germination rate and germinating energy
The corn seed of full seed is chosen, seed pelleting is carried out by each treatment agent respectively.Often 100 jade are chosen in processing
Rice seed, 4 repetitions, as control, to germinate, be cultivated in illumination box on double-deck germination paper without Maize Seeds Coated, temperature
Degree is set as that 20 DEG C of daytime, evening are 15 DEG C, and the photoperiod is 12：Germination percentage and germinating energy are recorded after 12,7d.It the results are shown in Table 3.
The mandestrobin of table 3 compounds the influence result to corn seed germination with fludioxonil
As seen from the above table, germination percentage and germinating energy of the seed treatment in example of formulations of the invention to corn seed
Have no adverse effects.
Application Example 2：Mandestrobin compounds the field control effectiveness test to root rot with fludioxonil
Experiment is carried out in Liaoning Province's Xingcheng City soybean planting, and soybean varieties are Adou No.1 (susceptible kind), experimental field past
Year root rot generation is heavier.Test medicine and dosage refer to table 4, often handle 4 repetitions, per cell 40m2, totally 44 cells, with
Machine district's groups are arranged.Processing is coated with Erlenmeyer flask by effective ingredient consumption.10d, 30d, 60d are respectively adjusted after emerging
Look into once, take 30 plants of soybean plant strain, record total strain number and diseased plant number at different levels, stage division and computational methods ginseng at random per cell
Examine GB/T17980.88-2004).
The mandestrobin of table 4 compounds the field control effectiveness test result to root rot with fludioxonil
Application Example 3：Mandestrobin compounds the field control effectiveness test to Causal Organism of Maize Basal Stalk with fludioxonil
Experiment is carried out in Baoding Boye County corn planting, and corn variety is Zheng Dan 958 (susceptible kind), experiment
Ground former years fusarium root rot of maize occurs heavier.Test medicine and dosage refer to table 5, often handle 4 repetitions, per cell 40m2, totally 44
Individual cell, random district's groups arrangement.Processing is coated with Erlenmeyer flask by effective ingredient consumption.30d is adjusted after emerging
Look into once, record total strain number and withered seedling number calculate the withered rate of seedling and prevention effect.Test method particular reference (Guo Ning, it is different
Seed coat agent is to the prevention effect of corn stalk rot disease, 2010,14 (8)).
The mandestrobin of table 5 compounds the field control effectiveness test result to Causal Organism of Maize Basal Stalk with fludioxonil
Claims (6)
1. a kind of seed treatment, it is characterised in that the seed treatment contains active ingredient mandestrobin and coughs up bacterium
Nitrile, both mass ratioes are 1：50-50：1.
2. seed treatment according to claim 1, it is characterised in that：Active ingredient mandestrobin and fludioxonil
Mass ratio is 1:10-10:1.
3. seed treatment according to claim 2, it is characterised in that：Active ingredient mandestrobin and fludioxonil
Mass ratio is 1:5-5:1.
4. the seed treatment according to any one of claims 1 to 3, it is characterised in that：The gross mass percentage of active ingredient
Content is 1%-60%.
5. seed treatment according to claim 1, it is characterised in that：The agricultural chemicals that the seed treatment can be configured to
Preparation formulation is suspension seed-coating agent, seed treatment emulsion, seed treatment dispersible pulvis, the dispersible granula of seed treatment, seed
Handle microcapsule suspending agent or seed treatment dry powder doses.
6. application of the seed treatment in preventing and treating Crop Root maize ear rot, stem rot described in claim 1.
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