CN101911952A - Seed coating agent for controlling gerlachia leaf blight and snow mold of wheat and preparation process thereof - Google Patents

Abstract

The invention relates to a seed coating agent for controlling gerlachia leaf blight and snow mold of wheat and a preparation process thereof. The seed coating agent basically comprises the following components in percentage by weight: 5.0-7.0 percent of amicarthiazol, 6-8 percent of tebuconazole, 3-8 percent of fulvic acid, 0.2-0.3 percent of sodium carboxymethylcellulose, 0.1-0.4 percent of xanthan gum, 2-5 percent of monopotassium phosphate, 0.3-0.5 percent of defoamer, 0.5-2.0 percent of warning color and the balance of water. The preparation process comprises the following steps of: dissolving the xanthan gum and the sodium carboxymethylcellulose with water, then adding the amicarthiazol, the tebuconazole, the fulvic acid, the monopotassium phosphate, the warning color and the deformer and stirring at high speed, and carrying out coarse grinding and fine grinding to obtain a finished product. The invention can improve field emergence rate and promote the growth and production increase of wheat, and has obvious effects on controlling the gerlachia leaf blight and the snow mold of the wheat and the advantages of economical and easily-applied preparation process, convenient use and obvious social and economical benefits.

Description

Control wheat snow is rotten, the agent of kind clothing and the preparation technology of snow mold

One, technical field

The present invention relates to a wheat seed processing treatment technology, particularly relate to the coating agent for seed and the preparation technology of the corruption of control wheat snow, snow mold.

Two, background technology

Wheat is the grain ration of Xinjiang people of all nationalities, also is wheat farming major source of revenues.About 1,200 ten thousand mu of annual cultivated areas, wherein winter wheat is about 6,000,000 mu, and along with country's " grain security " strategy implementation and Xinjiang industry restructuring, the wheat area increases year by year.The improving yield of wheat stable yields is to maintain social stability, promote the important assurance of local economic development.

Wheat snow mold is to cause the wheat seedling of causing harm by multiple low temperature resistant pathogens such as Basidiomycotina, Hymenomycetes, coral Cordycepps.Show as seedling stage because of the part branch evil death underproduction, the time that snowfall is many, the accumulated snow time is long, morbidity is heavy, often can cause that full field wheat seeding is dead and have no harvest, later stage shows as the nascent water stain shape scab of light green color on the diseased plant, is covered with the soft mould layer of canescence, and the back produces the sclerotium of a large amount of pitchies, the mashed corruption of disease portion tissue, the very easily fragmentation of sick leaf, thus output influenced.Snow mold is the fungus-caused of Deuteromycotina, Haplomycetes, Moniliales, Tuberculariaceae, Fusarium (Fusirium).Common essentialspecies is that wheat is avenged mould sickle-like bacteria.The snow mold germ belongs to facultative parasite, has very strong saprophytic property, is soil inhabitant.Wheat snow is rotten, snow mold is one of the important disease in winter wheat district, North SinKiang, Xinjiang, mainly take place in low temperature, accumulated snow area and time thick, cover time length, at the beginning of last month of spring in winter, in the more area of accumulated snow, average attack rate is at 6.8%-45%, and indivedual counties and cities, Tacheng Prefecture take place heavy, lethality reaches 40-80%, even the destruction of full field, replant so that turn over, cause very big loss.Annual in recent years generation area is about 2,000,000 mu.

Wheat snow is rotten, there are infected seed, soil and invalid body in snow mold primary infection source, and seed-borne fungi is one of reason that wheat snow is rotten in recent years, snow mold generation area enlarges year by year.For control kind of biography, soil-borne disease, resist adverse environmental factors such as low temperature, improve germination rate between the seed-breeding field, and then improve field emergence rate and crop yield, seed coating technology has obtained extensive use.Through the development of decades, the seed coating medicine formulation also develops to multifunctional and composite type from simple seed dressing dressing, the developing direction of kind clothing agent the becoming seed coating technology of various multifunctional types, tailored version.The composition of planting the clothing agent generally comprises two big class materials: active component and inactive ingredients.Wherein active component comprises one or more materials such as insecticide, bactericide, plant growth regulator, is kind of the active ingredient of clothing agent.Inactive ingredients comprises that film forming agent and some other auxiliary agents (as lubricant, emulsifier, water-loss reducer, bleeding agent etc.) are the bases that forms kind of clothing agent stabilizer type and give full play to its effect.

Wheat snow is rotten, snow mold is to be carried disease germs by seed, soil and invalid body to cause the main source that just infects.With regard to kind of the mechanism of action of clothing agent, because its contained fungicide active ingredient can play good killing action to pathogen and the pathogen in the soil that seed itself carries, the prevention sprout term disease.And coated processing can form the film of one deck densification on the surface of seed, moisture can be regulated and control and air enters seed, thereby make a kind of preferable material of seed inner sustain and energy metabolism level, promote that seed sprouting is normal, it is neat to emerge, and seed vitality is improved, and the seedling leaves photosynthetic rate is also had certain facilitation, be beneficial to the production and the accumulation of plant photosynthetic product, thereby increase crop yield.Owing to add growth regulating class active substance, planting the clothing agent can strengthen the resistance of plant by regulating the activity of the degeneration-resistant metabolic enzyme of plant, adapts to its growth in adverse environment.

Characteristics such as the Xinjiang accumulated snow time is long, areal variation big, soil climate and planting patterns uniqueness have determined that wheat snow is rotten, the uniqueness of snow mold kind and harm characteristics, and seed coating technology and preparation technology are had higher requirement.And, not seeing in the existing document has open report at the Xinjiang special natural condition, can effectively prevent and treat the kind clothing agent that corruption of wheat snow, snow mold, raising drought condition are descended the field emergence rate, had function such as growth encourage volume increase concurrently, also not see the identical relevant report of filling a prescription with the present invention.

Three, summary of the invention

The present invention is for a kind of wheat seed coating agent that can effectively prevent and treat snow corruption, snow mold, raising emergence rate, low toxic and environment-friendly, growth encourage volume increase, preparation technology's economy and facility is provided.

Control snow provided by the invention is rotten, the wheat seed coating agent of snow mold, comprise bactericide, plant growth regulator, film forming agent, suspending agent, it is characterized in that described component and weight ratio thereof constitute: Seedvax 5.0%-7.0%, Tebuconazole 6%-8%, fulvic acid 3%-8%, sodium carboxymethylcellulose 0.2%-0.3%, xanthans 0.1%-0.4%, potassium dihydrogen phosphate 2%-5%, defoamer 0.3%-0.5%, warning colouration 0.5%-2.0%, water surplus.Described xanthans, defoamer, warning colouration are food grade materials, and Seedvax, Tebuconazole are the low toxicity bactericide, this product that makes low toxicity.

Seedvax and Tebuconazole are bactericide, can effectively kill the surface of the seed, pathogen in seed inside and seed surrounding soil hides, can prevent and treat wheat kind biography, soil-borne disease, have obvious synergistic effect behind above-mentioned two composite reagents, control efficiency is significantly higher than single agent effect.Fulvic acid is a kind of short carbon chain molecular structure product that extracts from natural humic acid, high capacity and biologically active are arranged, have ion exchange, absorption, complexing, chelating, flocculation, dispersion, the multiple function of bonding, except promoting crop root to grow, improve absorption to nutritive element, strengthen outside the photosynthesis of plant, also soil aggregate and physicochemical property there is improving effect, have good synergistic effect, can improve the ability that wheat is resisted arid, guarantee the field emergence rate.Warning colouration is the red or rhodamine toner of alkalescence, plays caution and sign and distinguishes effect.

This wheat seed coating agent has suspensibility height, good film-forming property, dressing is even, expulsion rate is low, low toxic and environment-friendly, characteristics easy to use, lower-cost.Contain compositions such as bactericide, plant growth regulator, have effects such as sterilization growth encourage.Owing to have a large amount of hydrophilic groups, hydrogen bond by hydrophilic group and water are in conjunction with absorbing water, and water absorption can reach 2000 times of own wt, and the water conservation time is long, confession seed germination and growth.Under the special environment condition of Xinjiang, with not dressing comparison, emergence rate can improve about 8% between the seed-breeding field, and emerged in advance 1～2 day, the plant radical increases 2～8, cost reduces by 1/3rd than other type kind clothing agent, and disease effects such as the corruption of control snow, snow mold reach more than 90% volume increase about 10%.

Four, embodiment

Embodiment 1

Each component and the percentage by weight thereof of wheat seed coating agent constitute: Seedvax 6.2%, Tebuconazole 6.5%, fulvic acid 5%, sodium carboxymethylcellulose 0.3%, xanthans 0.3%, potassium dihydrogen phosphate 3%, defoamer 0.4%, warning colouration are that alkalescence is red 0.8%, water surplus.As above its manufacture craft flow process of the wheat seed coating agent of proportioning is:

A, feed intake: after Seedvax, Tebuconazole are prepared in proportion, pour in the reactor; Add the alkaline red and fulvic acid for preparing again, add entry and xanthans, sodium carboxymethylcellulose afterwards; The revolving reaction still makes mixing of materials abundant;

B, stirring: by tubing pump the material in the reactor is delivered in the agitator tank, added defoamer, stir 10min;

C, preliminary grinding: the material in the agitator tank is sent in the 25L sand mill by feeding engine, carries out sand milling, and the material of outflow leaves in the agitator tank;

D, height are cut emulsification: by tubing pump product pump in the agitator tank is cut in the mulser to height, height is cut mulser running 10min;

E, correct grinding: the material that height is cut in the mulser pumps in the agitator tank, stirs 10min, and material is sent in the 50L refiner and finish grinded afterwards, makes particle footpath degree≤4 μ m of 90%, gets product.

Fulvic acid in the present embodiment, xanthans, defoamer, the red food grade materials that is of alkalescence, and the purity of fulvic acid is 92%.

Present embodiment 2008,2009 is implemented 50 mu of areas at agrotechnical center, Ili Prefecture, Xinjiang plant protection unit, the soil property loam, and middle fertility, soil moisture content be drought partially, preceding stubble wheat.Through investigation,, increase production 12.3% with the ratio of this kind clothing agent dressing average raising emergence rate 18.5% or not.Control wheat snow is rotten, the snow mold effect reaches 95.4%, and is high 6.7,8.2 percentage points respectively than Seedvax, Tebuconazole list agent effect, than the suitable A of like product, to defend B high 6.8,5.5 percentage points.

Present embodiment is a most preferred embodiment of the present invention.

Embodiment 2

Wheat seed coating agent set of dispense ratio is: Seedvax 5.0%, and Tebuconazole 7.0%, fulvic acid 6%, sodium carboxymethylcellulose 0.25%, xanthans 0.25%, potassium dihydrogen phosphate 2%, defoamer 0.3%, warning colouration are alkali red 1:1 .0%, water surplus.Wherein fulvic acid purity is 90%.Fulvic acid, xanthans, defoamer, rhodamine toner are food grade materials.Its manufacture craft process is with embodiment 1.

Present embodiment was implemented about 45 mu of area in 2008,2009 in Tacheng area and Feng County seed stations.The soil property loam, middle fertility, soil moisture content is general, preceding stubble wheat.Through investigation,, increase production 6.8% with the ratio of this kind clothing agent dressing average raising emergence rate 8.2% or not.Control wheat snow is rotten, the snow mold effect reaches 83.4%, distinguishes high 3.2,5.7 percentage points than Seedvax, Tebuconazole list agent effect.

Embodiment 3

Each component and the percentage by weight thereof of wheat seed coating agent constitute: Seedvax 6.5%, Tebuconazole 6.0%, fulvic acid 4%, sodium carboxymethylcellulose 0.3%, xanthans 0.3%, potassium dihydrogen phosphate 3%, defoamer 0.3%, warning colouration are that alkalescence is red 0.7%, water surplus.Wherein fulvic acid purity is 90%, xanthans, defoamer, the red food grade materials that is of alkalescence.The manufacture craft process is with embodiment 1.Present embodiment was implemented in Changji state Qitai County institute of agricultural sciences experimental field in 2008,2009,60 mu of areas.Soil alkalescence, fertility is lower, soil moisture content arid, preceding stubble wheat.Through breeding time investigation, compare with dressing not with the wheat seed of this kind clothing agent dressing, with the ratio of this kind clothing agent dressing average raising emergence rate 9.1% or not, increase production 6.2%.Control wheat snow is rotten, the snow mold effect reaches 85.6%, distinguishes high 5.4,6.7 percentage points than Seedvax, Tebuconazole list agent effect.

Claims (4)

1. kind clothing agent that prevents and treats the corruption of wheat snow, snow mold, comprise bactericide and auxiliary agent, it is characterized in that described component and weight ratio thereof constitute: Seedvax 5.0%-7.0%, Tebuconazole 6%-8%, fulvic acid 3%-8%, sodium carboxymethylcellulose 0.2%-0.3%, xanthans 0.1%-0.4%, potassium dihydrogen phosphate 2%-5%, defoamer 0.3%-0.5%, warning colouration 0.5%-2.0%, water surplus.

2. as claimed in claim a kind of clothing agent is characterized in that each components by weight constitutes: Seedvax 6.2%, Tebuconazole 6.5%, fulvic acid 5%, sodium carboxymethylcellulose 0.3%, xanthans 0.3%, potassium dihydrogen phosphate 3%, defoamer 0.4%, warning colouration are that alkalescence is red 0.8%, water surplus.

3. wheat seed coating agent as claimed in claim 1 or 2 is characterized in that described sodium carboxymethylcellulose, xanthans, defoamer, warning colouration are food grade materials.

4. the preparation technology of according to claim 1 and 2 kind of clothing agent, it is characterized in that according to the following steps or order is prepared: xanthans and sodium carboxymethylcellulose are added in the entry dissolve, add Seedvax, Tebuconazole, fulvic acid, potassium dihydrogen phosphate, defoamer and warning colouration high-speed stirred then, get product through corase grind, fine grinding.