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A kind of stable controlled-release granular medicinal fertilizer

A technology for fertilizer and drug release, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of inconsistent time between pesticides and fertilizers, unstable mixing, and pesticide decomposition.

Active Publication Date: 2011-12-14
GAUNGXI TIANYUAN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent "New Drug Fertilizer" (application number: 200620170623.4), the core layer of this product is just a mixture of fertilizers and simple pesticide preparations, and the simple mixture of pesticides and fertilizers is mostly unstable and easy to cause pesticides to decompose. The existence of releasing layer 2 is not very necessary, and increases production cost, because coating layer has played the effect of slow-release, and fertilizer and pesticide all are released simultaneously in this product, and the time that crop needs pesticide and fertilizer may inconsistent

Method used

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  • A kind of stable controlled-release granular medicinal fertilizer
  • A kind of stable controlled-release granular medicinal fertilizer
  • A kind of stable controlled-release granular medicinal fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A. Prepare diazinon microcapsules in advance, namely 2 in the structure diagram. (prepared by the interfacial polymerization method introduced in "New Formulations of Pesticides" written by Zhou Benxin, published by Chemical Industry Press, etc.)

[0038] B, the preparation of medicinal fertilizer granules (taking the production of 1000Kg as example): get urea 300Kg, ammonium chloride 200Kg, monoammonium 200Kg, potassium chloride 220Kg, borax 10Kg, above-mentioned diazinon microcapsules 30Kg, compound sodium nitrophenolate. Naphthalene acetic acid mixture (2:1) 0.2Kg, supplemented with kaolin, the above-mentioned materials were crushed, mixed and added to a disc granulator for granulation, and dried to obtain the nucleus, which is 3 in the structure diagram.

[0039] C, coating: Spray 20Kg of epoxy resin solution (formed by epoxy resin E44, polyamide resin 650 and xylene) onto the surface of the above-mentioned particles to form a controlled release layer, that is, 4 in...

Embodiment 2

[0041] A. Prepare and obtain chlorantraniliprole microcapsules in advance, namely 2 in the structure diagram. (prepared by the spray-drying coating method introduced in the book "New Formulations of Pesticides" written by Zhou Benxin, published by Chemical Industry Press)

[0042] B. Preparation of medicinal fertilizer granules (taking the production of 1000Kg as an example):

[0043] Take 500Kg of urea, 180Kg of monoammonium, 180Kg of potassium chloride, 40Kg of sodium silicate, 30Kg of the above-mentioned chlorantraniliprole microcapsules, 0.3Kg of paclobutrazol, make up with kaolin, crush and mix the above materials, and add them to the drum granulator Granulate and dry to obtain the nucleus, which is 3 in the structure diagram.

[0044]C. Coating: Use sulfur to coat the above-mentioned granules to form a controlled-release layer, that is, 4 in the structure diagram, and obtain the core-shell structure medicinal fertilizer.

[0045] This product was used in rice. In 2009,...

Embodiment 3

[0047] A. Prepare and obtain tebuconazole microcapsule powder in advance, that is, 2 in the structure diagram. (prepared by the spray-drying coating method introduced in the book "New Formulations of Pesticides" written by Zhou Benxin, published by Chemical Industry Press)

[0048] B. Preparation of medicinal fertilizer granules (taking the production of 1000Kg as an example):

[0049] Get 200Kg of urea, 200Kg of calcium magnesium phosphate fertilizer, 180Kg of monoammonium, 180Kg of potassium chloride, 120Kg of humic acid, 30Kg of the above-mentioned tebuconazole microcapsules, and make up kaolin. After drying, the nucleus is obtained, which is 3 in the structure diagram.

[0050] C. Coating: Spray 20Kg of modified vegetable oil onto the surface of the above-mentioned granules to form a controlled-release layer, that is, 4 in the structure diagram, to obtain a core-shell structure medicinal fertilizer.

[0051] This product was used in rice. In 2010, a test in Nanning, Guan...

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Abstract

The invention relates to a stable controlled release particle pesticide-containing fertilizer. The pesticide-containing fertilizer has a core-shell structure, is granular and comprises a core which is composed of a fertilizer and a microcapsule pesticide or pesticide pulvis adsorbed by a porous material, and a shell which is used as a controlled release layer. The invention enables the pesticide and the fertilizer to stably exist and to be slowly released, frequency of pesticide application and fertilizer application in growth stages of crops to be reduced and field labor to be saved.

Description

technical field [0001] The invention relates to a controlled-release granular medicinal fertilizer integrating nutrition, insecticidal and bactericidal effects and a production method thereof, in particular to a granular medicinal fertilizer and a preparation method thereof. Background technique [0002] Pesticides and fertilizers are the basic material guarantee for agricultural production and food security. In the traditional agricultural production process, pesticides and chemical fertilizers are generally used alone or mixed immediately, which is not only troublesome, but also often results in poor results and even phytotoxicity due to uneven mixing. Modern agriculture is supported and driven by powerful technology, in order to achieve sustainable agricultural development. Fertilizer is a new attempt. There are indirect or direct effects between fertilizers, pesticides, soil and crops. Study the relationship between them, and use pesticides and fertilizers in combinati...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/02C05G3/60
Inventor 李卫国唐静刘玉生谭贤勇李现玲
Owner GAUNGXI TIANYUAN BIOCHEM
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