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A kind of slow-release pesticide granule and preparation method thereof

A technology of slow-release pesticides and granules, applied in the field of pesticides, can solve problems such as harsh process requirements and soil solvent pollution, and achieve the effects of quick operation, wide application range, and reduced labor costs

Active Publication Date: 2018-12-11
广西金盛农联农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mix the pesticide active substance, filler and surfactant evenly; the pesticide active substance, filler and surfactant are calculated by weight percentage, the pesticide active substance is 1%~20%, and the surfactant is 0.1%~10% %, and the balance is clay. The mixed granules of the pesticide granules not only retain the original quick-acting properties of the effective activity of the pesticide, but also improve the physical and chemical stability of the effective activity of the pesticide; but the mixed granules of the pesticide granules adopt surfactants , may cause solvent pollution to the soil. In addition, different layers are coated with different thicknesses of coatings and some are not coated to achieve slow-release and quick-acting control, and the process requirements are relatively harsh.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The first layer of active ingredient layer: clothianidin 4kg, polyvinylpyrrolidone 4.8kg, kaolin and clay 126.4kg; the second layer of active ingredient layer: monosultap 8kg, sodium carboxymethylcellulose 12kg, kaolin and clay 400kg; Three layers of active ingredients: monosultap 8kg, dextrin 32kg, borax 4.8kg, kaolin and clay 400kg.

[0045] The preparation method comprises the following steps:

[0046] (1) Preparation of the first layer of active ingredients: Stir and mix clothianidin and polyvinylpyrrolidone in the first layer of active ingredients evenly, add kaolin and clay to prepare mixed material A;

[0047] (2) Preparation of the second layer of active ingredients: Stir and mix the monosultap and sodium carboxymethylcellulose in the second layer of active ingredients, and add kaolin and clay to prepare the mixed material B;

[0048] (3) Preparation of the third layer of active ingredients: Stir and mix the monosultap, dextrin and borax in the third layer of a...

Embodiment 2

[0054] The first active ingredient layer: thiamethoxam 8kg, polyvinylpyrrolidone 12kg, kaolin and clay 176.1kg; the second active ingredient layer: thiamethoxam 2kg, cyfluthrin 6kg, carboxymethylcellulose sodium 12kg, kaolin and clay 280kg; the third layer of active ingredients: 9kg of cyfluthrin, 36kg of dextrin, 5.4kg of borax, 450kg of kaolin, clay and gypsum; protective layer: 21g of borax, 140g of dextrin, 1g of pigment, 3.3kg of kaolin, clay and gypsum.

[0055] The preparation method comprises the following steps:

[0056] (1) Preparation of the first layer of active ingredients: Stir and mix thiamethoxam and polyvinylpyrrolidone in the first layer of active ingredients, and add kaolin and clay to prepare the mixed material A;

[0057] (2) Preparation of the second layer of active ingredients: Stir and mix the thiamethoxam, cyfluthrin and sodium carboxymethylcellulose in the second layer of active ingredients, and add kaolin and clay to prepare the mixed material B;

...

Embodiment 3

[0064] The first layer of active ingredients: monosultap 3kg, abamectin 33kg, polyvinylpyrrolidone 54kg, kaolin and clay 180kg; the second layer of active ingredients: monosultap 3kg, abamectin 33kg, hydroxyethyl cellulose 66kg of prime, 180kg of kaolin and clay; the third active ingredient layer: 4kg of monosultap, 34kg of abamectin, 114kg of dextrin, 17.1kg of borax, 290.9kg of kaolin, clay and light calcium carbonate.

[0065] The preparation method comprises the following steps:

[0066] (1) Preparation of the first layer of active ingredients: Stir and mix the monosultap, abamectin and polyvinylpyrrolidone in the first layer of active ingredients, and add kaolin and clay to prepare the mixed material A;

[0067] (2) Preparation of the second layer of active ingredients: Stir and mix the monosultap, abamectin and hydroxyethyl cellulose in the second layer of active ingredients, and add kaolin and clay to prepare the mixed material B;

[0068] (3) Preparation of the third ...

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Abstract

The invention discloses sustained-release pesticide granules and a preparation method therefor. Each sustained-release pesticide granule comprises a first-layer effective ingredient layer, a second-layer effective ingredient layer and a third-layer effective ingredient layer which are arranged from inside to outside. According to the sustained-release pesticide granules and the preparation method therefor, the release of pesticide active ingredients is promoted or adjusted through adopting different cross-linking agents for different effective ingredient layers and setting a proper proportioning ratio for each layer in a matched manner, so as to achieve quick-acting, medium-acting and long-acting control and killing effects on diseases and insect pests.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a slow-release pesticide granule and a preparation method thereof. Background technique [0002] The original pesticides generally cannot be used directly, and must be processed into various types of preparations before they can be used. At present, powder is the earliest and most used powder. Because it can be directly applied or mixed with soil, it has high work efficiency and does not require water. It is especially suitable for use in arid and water-scarce mountainous or semi-mountainous areas and woodlands. However, the biggest disadvantage of powder is that it is easy to drift. Pollution of the environment, the effective utilization rate of pesticides is low, generally only 20% of the powder is deposited on the target organisms, and the leaf surface adhesion is poor, easy to be blown off by the wind or washed by rain, and the drug effect period is relatively short. Ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/26A01N25/10A01N51/00A01N41/02A01N53/08A01P7/04
CPCA01N25/10A01N25/26A01N41/02A01N51/00A01N53/00A01N2300/00
Inventor 苑立志覃欢
Owner 广西金盛农联农业科技有限公司
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