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Water dispersible granule seed coating formulation and preparation method thereof

A technology for dispersing granules and dispersants, applied in botany equipment and methods, insecticides, biocides, etc., can solve the problems of inability to prevent and control crop seedling diseases and insect pests at the same time, low seed coating rate, and easy shedding of seed coats, etc. problem, to achieve the effect of good suspension rate, good suspension, and firm coating

Inactive Publication Date: 2015-05-13
黑龙江省农业科学院农化研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems that the existing water-dispersible granular seed coating agent cannot prevent and control crop seedling stage diseases and pests at the same time, the coating rate of seeds is low, and the seed coat is easy to fall off, and provides water-dispersible granular seed coating agent and its preparation method

Method used

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  • Water dispersible granule seed coating formulation and preparation method thereof
  • Water dispersible granule seed coating formulation and preparation method thereof
  • Water dispersible granule seed coating formulation and preparation method thereof

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specific Embodiment approach 1

[0017] Specific embodiment one: the water-dispersible granular seed coating agent of the present embodiment consists of 5 to 40 parts of fungicides, 0 to 40 parts of insecticides, 4 to 8 parts of dispersants, 1 ~3 parts of wetting agent, 1~5 parts of disintegrating agent, 5~20 parts of film forming agent, 0.5~4 parts of dyeing agent and 0~40 parts of carrier; the fungicide original drug is fludioxonil , Indazole sulfasulfame, penconazole, carbendazim, thiram and tebuconazole or a combination of several of them, and the original insecticide is chlorpyrifos and / or matrine.

specific Embodiment approach 2

[0018] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the described dispersant is sodium lignin sulfonate, alkyl naphthalene sulfonic acid polycondensate sodium salt (D-425), sodium n-butyl naphthalene sulfonate One of (MorwetB), sodium diisobutylnaphthalene sulfonate (pull-off powder BX) and sodium 1-methylnaphthalene sulfonate (MF) or a combination of several of them. Others are the same as in the first embodiment.

[0019] When the dispersant of this embodiment is a composition, each dispersant is combined in arbitrary ratios.

specific Embodiment approach 3

[0020] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the wetting agent is alkyl naphthalene sulfonate (Morwet EFW), sulfosuccinate (Lankropol KPH70) and dodecyl One or a combination of sodium sulfate (SDS). Others are the same as in the first or second embodiment.

[0021] When the wetting agent of this embodiment is a composition, each wetting agent is combined in arbitrary ratios.

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Abstract

The invention relates to a seed coating formulation and a preparation method thereof, in particular to a water dispersible granule seed coating formulation and a preparation method thereof, and mainly solves the problems of low seed coating ratio and high possibility of stripping off of the seed coating of the conventional seed coating formulation. The water dispersible granule seed coating formulation comprises a bactericide, an insecticide, a dispersing agent, a wetting agent, a disintegrating agent, a film-forming agent, a colouring agent and a carrier, wherein the bactericide is one or more of fludioxonil, amisulbrom, ipconazole, carbendazim, thiram and tebuconazole; the insecticide is chlorpyrifos and / or sophocarpidine; the preparation method comprises the following steps: premixing and coarsely grinding the raw insecticide, the raw bactericide, the dispersing agent, the wetting agent, the disintegrating agent and the carrier through a universal pulverizer, and then smashing through a jet mill, so as to obtain a powder mixture; spraying the mixed liquor of the colouring agent, a binder, the film-forming agent and water into the powder mixture, after kneading, leaving the material to stand, extruding, granulating and drying, so as to obtain the water dispersible granule seed coating formulation. The water dispersible granule seed coating formulation can be used for crop seed coating.

Description

technical field [0001] The invention relates to a seed coating agent and a preparation method thereof. Background technique [0002] Pesticide water-dispersible granules (WDG) are a pesticide formulation developed by Europe and the United States in the early 1980s. The International Federation of Pesticide Industry Associations (GIFAR) defines it as: granules used after disintegration and dispersion in water. Water-dispersible granules are mainly composed of active ingredients of pesticides, dispersants, wetting agents, binders, disintegrants and fillers, with a particle size of 200μm-5mm. This dosage form can quickly disintegrate and disperse into a high-suspension solid-liquid after entering water decentralized system. After 2000, WDG developed rapidly in China, and now it has become an important development direction of new pesticide environmental protection formulations. More and more pesticide WDG varieties have been successfully researched and developed. Seed coating...

Claims

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Application Information

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IPC IPC(8): A01N47/26A01N25/14A01N43/653A01N57/16A01P3/00A01P7/04A01N47/18A01N43/90A01N43/36
Inventor 李明张荣芳翟喜海
Owner 黑龙江省农业科学院农化研究所
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