Controlled-release pesticide fertilizer and preparing method thereof

A technology for drug release and active ingredients, which is applied in the field of medicinal fertilizers, can solve the problems of complex and cumbersome preparation process, insufficient fertility, and poor drug efficacy, and achieve the effects of reduced energy consumption, simple operation, and high mixing uniformity

Inactive Publication Date: 2015-11-18
XIAN LEAD LIGHT BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method of the controlled-release granule fertilizer published in the above-mentioned patent is prepared by pesticide granules, then wrapped layer by layer, and finally dried and sieved to obtain the controlled-release granule fertilizer.
The inventor of this patent has proved through experiments that the controlled-release granule medicinal fertilizer obtained according to the above-mentioned patent is mixed, pulverized, and granulated with the same amount of all ingredients used in its preparation, and the medicinal fertilizer granule obtained by judging from the results of the drug effect and fertilizer effect test has no significant difference , but they all showed significant ability to control release. However, in the later stage of crop growth, they showed poor efficacy and insufficient fertility, and they had to be re-applied to control diseases, insect pests, weeds and topdressing to provide nutritional requirements.

Method used

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  • Controlled-release pesticide fertilizer and preparing method thereof
  • Controlled-release pesticide fertilizer and preparing method thereof
  • Controlled-release pesticide fertilizer and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1008

[0030] Embodiment 10.08% thiamethoxam controlled-release medicinal fertilizer granules

[0031] (1) Preparation of liquid materials: Weigh 0.05kg of xanthan gum and 1.2kg of water, heat to 70°C to 75°C under stirring conditions and keep for 25 minutes, cool to 50°C to 53°C, and then add dextrin 0.03 kg, thiamethoxam powder 0.1kg, phenethylphenol polyoxyethylene ether phosphate 0.04kg, sodium dodecylbenzenesulfonate 0.03kg, and stir evenly.

[0032] (2) Preparation of powder materials: N content 30%, provided by urea; P content 5%, provided by monoammonium phosphate; K content 5%, provided by potassium magnesium sulfate, zinc sulfate 0.3kg, amino acid chelated copper 0.4 kg, make up 100kg of clay, mix and pulverize.

[0033] (3) Fluidized bed granulation: the prepared liquid material and powder material are granulated in a fluidized bed to obtain 0.08% thiamethoxam controlled-release medicinal fertilizer granules.

Embodiment 2055

[0034] Example 20.55% Avi·Thiazolyl Phosphate Controlled-release Medicinal Fertilizer Granules

[0035] (1) Preparation of liquid materials: Weigh 0.01kg of agar and 1kg of water, heat to 90°C to 95°C under stirring and keep for 35 minutes, cool to 45°C to 50°C, and then add 0.05 kg, 0.5kg thiazophosphine, 0.08kg phenethylphenol polyoxyethylene ether phosphate, 0.04kg calcium dodecylbenzenesulfonate, and stir evenly.

[0036] (2) Preparation of powder materials: N content 35%, provided by urea; P content 7%, provided by superphosphate; K content 6%, provided by potassium chloride, clay added 100kg, mixed and pulverized.

[0037] (3) Fluidized bed granulation: the prepared liquid material and powder material are granulated in a fluidized bed to obtain 0.55% Avi·Thiazolylphosphine controlled-release medicinal fertilizer granules.

Embodiment 30

[0038] Example 30.2% Chlorpyrifos Thiamethoxam Controlled-release Fertilizer Granules

[0039] (1) Preparation of liquid materials: Weigh 0.02kg of carrageenan and 1kg of water, heat to 85°C-95°C under stirring condition and keep for 30 minutes, cool to 47°C-53°C, then add 0.15kg of chlorpyrifos powder, Thiamethoxam powder 0.05kg, alkyl aryl polyoxypropylene polyoxyethylene ether 0.08kg, sodium dodecylbenzenesulfonate 0.03kg, phenethylphenol polyoxyethylene ether 0.03kg, and stir evenly.

[0040] (2) Preparation of powder materials: N content 25%, provided by urea; P content 8%, provided by double superphosphate; K content 11%, provided by potassium sulfate, kaolin supplemented 100kg, mixed and pulverized.

[0041] (3) Fluidized bed granulation: the prepared liquid material and powder material were granulated in a fluidized bed to obtain 0.2% chlorpyrifos·thiamethoxam controlled-release medicinal fertilizer granule.

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Abstract

The invention discloses controlled-released pesticide fertilizer and preparing method thereof. The controlled-released pesticide fertilizer comprises, by mass, 0.001-15% of effective component A, 4%-45% of nitrogen, 1%-15% of phosphorus, 1%-25% of potassium, 0.1%-5% of microelement, 0.01%-10% of coagulator, 0.01%-10% of binder, 0.15-10% of surfactant and the balance packing. The preparing method of the controlled-released pesticide fertilizer comprises is simple and comprises the steps of preparing of liquid materials, preparing of powder materials and fluidized bed granulating. The controlled-released pesticide fertilizer can control the occurrence of damage caused by diseases, insect pests and weeds can be controlled in all the seasons of crop growth and meet the supply of nutrient substances needed in all the seasons of crop growth, production and use are safe, labor and cost are reduced, and the application amount and the use frequency of pesticides and the fertilizer in the period of crop growth can be reduced.

Description

technical field [0001] The invention belongs to the technical field of medicinal fertilizers, and in particular relates to a controlled-release medicinal fertilizer. This controlled-release medicinal fertilizer can provide nutrients, insecticides, fungicides, weeds and active ingredients required for growth regulation in a timely manner throughout the growth process of crops. The invention also provides a preparation method of the controlled-release medicinal fertilizer. Background technique [0002] Pesticides and chemical fertilizers are indispensable basic means of production in agricultural production activities. At present, pesticides and chemical fertilizers are still applied separately in China. Compared with the extensive combined application of pesticides and fertilizers abroad, there is a lot of waste in pesticides, chemical fertilizers, water and labor in China, and there is a greater impact on the environment and users. Security Risk. At present, there is an u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/60
Inventor 安道杰杨颖韩宏佳刘佩
Owner XIAN LEAD LIGHT BIOTECH CO LTD
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