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A kind of controlled release fertilizer and its manufacture and use method

A controlled-release fertilizer and base fertilizer technology, applied in the field of controlled-release fertilizers, can solve the problems of high potato toxicity, low potato toxicity, and potato poisoning, and achieve the effects of saving labor, saving nitrogen fertilizer consumption, and reducing the loss rate of nitrogen fertilizer

Active Publication Date: 2018-06-15
青岛亚星化肥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wild potatoes are highly toxic, and solanine poisoning can cause headaches, diarrhea, convulsions, coma, and even death
However, the toxicity of generally cultivated potatoes is very low, and few potato poisoning incidents occur.

Method used

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  • A kind of controlled release fertilizer and its manufacture and use method
  • A kind of controlled release fertilizer and its manufacture and use method
  • A kind of controlled release fertilizer and its manufacture and use method

Examples

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Embodiment Construction

[0026] The controlled-release fertilizer of the present application includes 50-75 parts of the base fertilizer obtained after mixing urea, calcium magnesium phosphate fertilizer, and potassium sulfate according to 8:4:17 according to parts by weight, and further includes borax, zinc sulfate, ground 2-4 parts of micro-fertilizer obtained after mixing according to 1:1:1.8, 3-5 parts of powder prepared from the extracts of Aconitum, Anemarrhena, Asarum, Xanthium, and Chamaejasma chamaejasme, 10-15 parts of plant ash 3-5 parts of modified starch, 2-4 parts of starch graft copolymer, 3-5 parts of lignin, 6-8 parts of potassium fulvic acid, 5-8 parts of coating material, the coating material is sulfur coating Any one of coating, resin coating or urease inhibitor coating.

[0027] Or, according to the number of parts by weight, including urea, calcium magnesium phosphate fertilizer, and potassium sulfate according to 8:4:17 mixed base fertilizer obtained after 50-75 parts, it is cha...

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Abstract

The invention provides a controlled-release fertilizer. The controlled-release fertilizers comprises 50-75 parts of a base fertilizer which is obtained by mixing urea, a calcium magnesium phosphate fertilizer and potassium sulfate in a ratio of 8 to 4 to 17. The controlled-release fertilizer is characterized by further comprising the following components in parts by weight: 2-4 parts of a micro fertilizer which is obtained by mixing borax, zinc sulfate and bunge corydalis herb in a ratio of 1 to 1 to 1.8, 3-5 parts of powder prepared by extracts of aconite, rhizoma anemarrhenae, asarum, siberian cocklebur fruit and Chinese stellera, 10-15 parts of plant ashes, 3-5 parts of modified starch, 2-4 parts of starch-grafted copolymer, 3-5 parts of lignin, 6-8 parts of potassium fulvate, and 5-8 parts of coating materials, wherein the coating materials can be any one of sulfur coating materials, resin coating materials or urease inhibitor coating materials. The controlled-release fertilizer is simple in proportion, convenient to use, long in curative effect, controlled-release in release, comprehensive in nutrition and capable of effectively preventing soil pests and diseases.

Description

Technical field: [0001] The invention relates to the technical field of fertilizers, in particular to a controlled-release fertilizer and its production and use methods. Background technique: [0002] Controlled-release fertilizer is a fertilizer coated with a polymer. The micropores on the membrane are usually only a few hundred nanometers. Liquid water cannot pass through the membrane at all, and can only enter the membrane in the form of water molecules, so water molecules can freely enter and exit the membrane. , fertilizer particles are completely isolated from the outside, while nutrients are excluded from the membrane through the osmotic pressure of the membrane. Therefore, the release speed of nutrients is only related to the movement speed of water molecules and the pores of the membrane micropores. When a controlled-release fertilizer is applied to the soil (the micropores have been set), it is only related to the movement speed of water molecules, and the water mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/02A01C21/00C05G3/60
Inventor 王志葵聂江峰张成海宋正修姚海燕王立云周卫东
Owner 青岛亚星化肥有限公司
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