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Controlled-release carrier and application of controlled-release carrier in controlled release of moisture and fertilizer required for potted crops

A slow-release carrier, fertilizer technology, applied in the application, matrix fertilizer, fertilizer mixture and other directions, can solve problems such as poor growth of potted crops, inability to take care of potted crops, adverse environmental effects, etc., and achieves storage stability promotion, good control, and storage. The effect of more water and nutrients

Active Publication Date: 2015-01-21
GUANGZHOU GLORYSTAR CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when people need to leave their residences temporarily, they often cause poor growth or death of potted plants because they cannot take care of them. Therefore, potted plant maintenance is an urgent problem to be solved.
[0003] Existing slow-release fertilizers for potted flowers are coated with effective chemical fertilizers to slow-release the fertilizers, but they cannot be used for slow-release of water at the same time, and they are made of polyolefin chemical substances, which will cause The use of highly toxic substances such as chloroform has adverse effects on the environment
So far, there is no report on slow-release carriers that can release water and potted chemical fertilizers together

Method used

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  • Controlled-release carrier and application of controlled-release carrier in controlled release of moisture and fertilizer required for potted crops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation example of embodiment 1 sustained-release carrier

[0026] The raw materials are as follows: 100 parts of corn starch, 30 parts of polyethylene glycol, 15 parts of pasting agent sodium hydroxide, 25 parts of etherification agent propylene oxide, 201 parts of Tween, 1 part of stabilizer sodium carboxymethyl cellulose, 300 parts of water, 15 parts of glycerin, 0.5 parts of ammonium sulfate;

[0027] Prepare the slow-release carrier as follows:

[0028] 1) Mix the starch and gelatinizer, add water to it, stir at room temperature, gelatinize the starch emulsion, then add etherification agent, raise the temperature to 40-50°C, and keep stirring for 30 minutes;

[0029] 2) Add polyethylene glycol, glycerol, Tween-20, and water to form a solution with a solid content of 30-40% (by weight), stir for 20 minutes, add a catalyst therein, heat up to 70°C, and stir for 1 Hour;

[0030] 3) Add a stabilizer to the above-mentioned product, throw it into a multi-rolle...

Embodiment 2

[0031] The preparation example of embodiment 2 sustained-release carrier

[0032] The raw materials are as follows: 100 parts of potato starch, 50 parts of polyethylene glycol, 20 parts of pasting agent sodium carbonate, 35 parts of etherification agent propylene oxide, 205 parts of Tween, 5 parts of stabilizer sodium carboxymethyl cellulose, water 400 parts, 25 parts of glycerol, 0.5 part of ammonium sulfate;

[0033] Prepare the slow-release carrier as follows:

[0034] 1) Mix the starch and gelatinizer, add water to it, stir at room temperature, gelatinize the starch emulsion, then add etherification agent, raise the temperature to 40-50°C, and keep stirring for 30 minutes;

[0035] 2) Add polyethylene glycol, glycerin, Tween-20, and water, stir for 20 minutes, add a catalyst therein, raise the temperature to 90°C, and stir for 1 hour;

[0036] 3) Add a stabilizer to the above-mentioned product, put it into a multi-roller dryer for gelatinization, dry, control the tempera...

Embodiment 3

[0037] The preparation example of embodiment 3 sustained-release carrier

[0038] The raw materials are as follows: 100 parts of tapioca starch, 40 parts of polyethylene glycol, 18 parts of pasting agent sodium hydroxide or sodium carbonate, 30 parts of etherification agent propylene oxide, 204 parts of Tween, stabilizer sodium carboxymethyl cellulose 4 parts, 350 parts of water, 20 parts of glycerin, 0.5 parts of ammonium sulfate;

[0039] Prepare the slow-release carrier as follows:

[0040] 1) Mix the starch and gelatinizer, add water to it, stir at room temperature, gelatinize the starch emulsion, then add etherification agent, raise the temperature to 40-50°C, and keep stirring for 30 minutes;

[0041] 2) Add polyethylene glycol, glycerin, Tween-20, and water, stir for 20 minutes, add a catalyst therein, raise the temperature to 80°C, and stir for 1 hour;

[0042] 3) Add a stabilizer to the above-mentioned product, throw it into a multi-roller dryer for gelatinization, ...

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Abstract

The invention provides a controlled-release carrier for controlled release of moisture and a fertilizer, a preparation method and application of the controlled-release carrier. The controlled-release carrier mainly comprises the following components in parts by weight: 100 parts of starch, 30-50 parts of polyethylene glycol, 15-20 parts of a gelatinizing agent, 25-35 parts of an etherifying agent, 1-5 parts of Tween, 1-5 parts of a stabilizer, 300-400 parts of water, 15-25 parts of glycerol and 0.5 part of a catalyst, wherein the stabilizer is sodium carboxymethylcellulose. The controlled-release carrier capable of simultaneous controlled release moisture and fertilizer, which is provided by the invention, can be used as the carrier of moisture and the fertilizer and can controllably release the moisture and fertilizer, the controlled-release valid period is long and the controlled-release carrier provided by the invention can facilitate the achievement of unmanned management and maintenance of the potted crops for people.

Description

technical field [0001] The invention belongs to the field of slow-release materials, in particular to a slow-release carrier for water and / or fertilizer required by potted crops and a preparation method thereof. Background technique [0002] Along with the raising of people's living standard, most families all can plant some potted crops at home, as flowers etc., wherein the potted plants of some kinds need regular quantitative watering and fertilization. However, when people need to leave the residence temporarily, they often cause poor growth or death of the potted crops because they cannot take care of the potted crops. Therefore, potted plant maintenance is an urgent problem to be solved. [0003] Existing slow-release fertilizers for potted flowers use effective chemical fertilizers for slow-release coating to slow-release fertilizers. The use of highly toxic substances such as chloroform has adverse effects on the environment. At present, there is no report on a slow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C08B31/12
CPCC08B31/12C05G5/40
Inventor 胡新嵩罗伟汪建平曾军曾辉文
Owner GUANGZHOU GLORYSTAR CHEM
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