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Suspended seed coating agent containing fludioxonil and thiamethoxam and preparation method of suspended seed coating agent

A suspension seed coating agent, fludioxonil technology, applied in the field of pesticides, can solve the problems of uneven seed surface distribution, poor film wear resistance, easy flake off, etc., to achieve a safe and environmentally friendly coating uniformity, coating shedding rate Low, excellent suspension stability effect

Active Publication Date: 2016-09-28
HUIZHOU YINNONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing suspension seed coating agent is applied to seed coating, due to inappropriate selection of additives, there are often problems such as low film-forming strength, poor product fluidity, slow drying of coated seeds, uneven film formation, and poor film abrasion resistance, etc. Problems, lead to uneven distribution of pesticides on the surface of seeds, easy to fall off in powder form, serious dust, very toxic to processing and packaging workers, coating layer is also easy to be lost due to irrigation and rain, when the seeds germinate, pesticides, etc. There are not many active ingredients left, which causes waste and pollutes the environment; while some suspended seed coatings have high film-forming strength, but poor cohesiveness, difficult to dry the seed coating, poor affinity between the film and seeds, and easy to fall off in flakes
At the same time, due to the formula and processing technology, there are suspension stability problems such as uneven dispersion and fast sedimentation during the storage of the suspension seed coating, which makes it difficult for the active ingredients to act on the seeds evenly and affects the appearance of the coating.

Method used

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  • Suspended seed coating agent containing fludioxonil and thiamethoxam and preparation method of suspended seed coating agent
  • Suspended seed coating agent containing fludioxonil and thiamethoxam and preparation method of suspended seed coating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0028] Embodiment 1-4 a kind of suspension seed coating agent containing fludioxonil and thiamethoxam

[0029] The suspension seed coating agent described in the embodiment of the present invention 1-5 is made up of component described in table 1 and weight percentage thereof:

[0030] Table 1 embodiment 1-4 suspension seed coating formulation

[0031]

[0032] Preparation:

[0033] 1) Add 70% of the water, wetting and dispersing agent and antifreeze in the formula into the reaction vessel, stir and mix;

[0034] 2) Add fludioxonil and thiamethoxam, homogenize with a homogenizer for 30 minutes, pump into a sand mill and grind until the particle size is D98≤4μm;

[0035] 3) Mix the remaining water, thickener, dyeing agent, film-forming agent, defoamer and preservative, homogenize for 12 minutes with a homogenizer, add to the ground material while stirring, and stir for 10 minutes to obtain the product.

Embodiment 5

[0036] The investigation of embodiment 5 film-forming agent

[0037] The present invention has tested and screened a large number of film-forming agents. Except for the film-forming agent, the remaining components and their weight percentages are the same as in Example 4. Different types of film-forming agents are added respectively, and the suspension is prepared according to the preparation method of Example 4. Coating agent.

[0038] According to the test and judgment method of "coating uniformity, coating shedding rate, low temperature stability and thermal storage stability" in the National Standard GB / T 17768-1999 "Suspended Seed Coating Product Standard Compilation Specification", the The prepared suspension seed coating samples were investigated. The inspection results are shown in Table 2.

[0039] The investigation result of table 2 film-forming agent

[0040]

[0041] According to the results in Table 2, it can be seen that Bletilla striata polysaccharide and ...

Embodiment 6

[0042] The germination test of embodiment 6 cotton seeds

[0043] Take the suspension seed coating agent containing fludioxonil and thiamethoxam prepared in Examples 1-4, and coat the cotton seeds with a drug-to-species ratio of 1:100. And according to the People's Republic of China Agricultural Industry Standard NY / T 1385-2007 "Cotton Seed Rapid Germination Test Method", the cotton seeds were tested for germination. Each sample was repeated four times, and the number of seeds in each test was 100. The experimental results are shown in Table 3 cotton seed rapid germination experiment records.

[0044] Table 3 cotton seed rapid germination experiment record

[0045] sample

[0046] As can be seen from the table 3 results, the cotton seeds are coated with the suspension seed coating agent containing fludioxonil and thiamethoxam prepared by the present invention, which can improve the germination rate of cotton after sowing, reduce the abnormal germination rate of seed...

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Abstract

The invention belongs to the technical field of pesticides and particularly relates to a suspended seed coating agent containing fludioxonil and thiamethoxam and a preparation method of the suspended seed coating agent. The suspended seed coating agent containing fludioxonil and thiamethoxam is prepared from, by weight, 2.3-3.0% of fludioxonil, 21.5-24% of thiamethoxam, 2-10% of wetting dispersant, 0.05-2% of thickener, 3-6% of anti-freezing agent, 0.1-2% of coloring agent, 0.5-5% of film forming agent and the balance water. The suspended seed coating agent is high in coating uniformity, low in coating falling rate and good in suspension stability, can be used for coating cotton seeds, can increase the emergence rate after cotton sowing, and has a good prevention effect on diseases and pests in the seedling stage.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a suspension seed coating agent containing fludioxonil and thiamethoxam and a preparation method thereof. Background technique [0002] Seed treatment agent is a kind of pesticide formulation used for seed surface treatment. It uses single agent of insecticide and fungicide or its mixture as active ingredient, which can reduce farmers' field operation procedures, prevent and control diseases and insect pests, improve emergence rate and seedling survival rate, The advantages of long-lasting drug effect and reducing environmental pollution have been widely promoted and applied internationally. At present, the most widely promoted and used dosage form of seed treatment agents in China is the suspension seed coating agent. As a water-based preparation, the suspended seed coating agent has the characteristics of high efficiency, safety, and environmental protection. Co...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N43/36A01N25/04A01P3/00A01P7/04
CPCA01N25/04A01N43/36A01N51/00A01N2300/00
Inventor 王爱臣
Owner HUIZHOU YINNONG TECH
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