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A kind of anti-floating agent, anti-floating controlled-release urea and preparation method thereof

A technology for controlled release of urea and anti-floating agent, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of large amount of anti-floating agent, reduced nutrient availability, water and soil pollution, etc., and achieves low price and added amount. Less and better performance

Active Publication Date: 2018-02-02
上海永通生态工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current anti-floating agents have problems such as large dosage, high cost, poor anti-floating effect, reduced nutrient availability, complicated production process, and water and soil pollution.

Method used

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  • A kind of anti-floating agent, anti-floating controlled-release urea and preparation method thereof
  • A kind of anti-floating agent, anti-floating controlled-release urea and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] a. Core fertilizer equipment: sieve and classify the biodegradable coated controlled-release urea particles with a particle size of 2-4 mm, and dry them for later use.

[0020] B, the preparation of anti-floating agent: Alkyl polyglucoside (APG), sodium fatty alcohol polyoxyethylene ether carboxylate (AEC), coconut oil glucoside are compounded and mixed according to the mass ratio of 1.5:1.5:2 to obtain the The anti-floating agent mentioned above.

[0021] c. Load a total of 999.5 kg of screened controlled-release urea into drums or other forms of coating equipment.

[0022] d. Through the control of the flowmeter, a total of 0.5 kg of the anti-floating agent prepared in step b is sprayed onto the surface of the controlled-release urea particles quantitatively and evenly through the nozzle. Rotate the roller while spraying to ensure even mixing. The time for adding and mixing the anti-floating agent is 5-10 minutes, and the controlled-release urea granules after spray...

Embodiment 2

[0024] a. Core fertilizer equipment: sieve and classify the biodegradable coated controlled-release urea particles with a particle size of 2-4 mm, and dry them for later use.

[0025] B, the preparation of anti-floating agent: Alkyl polyglucoside (APG), sodium fatty alcohol polyoxyethylene ether carboxylate (AEC), coconut oil glucoside are compounded and mixed according to the mass ratio of 1.5:2:2 to obtain the The anti-floating agent mentioned above.

[0026] c. Load a total of 999.4 kg of screened controlled-release urea into drums or other forms of coating equipment.

[0027] d. Through the control of the flowmeter, a total of 0.6 kg of the anti-floating agent prepared in step b is sprayed onto the surface of the controlled-release urea particles quantitatively and evenly through the nozzle. Rotate the roller while spraying to ensure even mixing. The time for adding and mixing the anti-floating agent is 5-10 minutes, and the controlled-release urea granules after sprayin...

Embodiment 3

[0029] a. Core fertilizer equipment: sieve and classify the biodegradable coated controlled-release urea particles with a particle size of 2-4 mm, and dry them for later use.

[0030] B, the preparation of anti-floating agent: Alkyl polyglucoside (APG), sodium fatty alcohol polyoxyethylene ether carboxylate (AEC), coconut oil glucoside are compounded and mixed in a mass ratio of 1.5:2:3 to obtain the The anti-floating agent mentioned above.

[0031] c. Load a total of 999.2 kg of screened controlled-release urea into drums or other forms of coating equipment.

[0032] d. Through the control of the flowmeter, a total of 0.8 kg of the anti-floating agent prepared in step b is sprayed onto the surface of the controlled-release urea particles quantitatively and evenly through the nozzle. Rotate the roller while spraying to ensure even mixing. The time for adding and mixing the anti-floating agent is 5-10 minutes, and the controlled-release urea granules after spraying the anti-f...

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Abstract

The invention discloses an anti-floating agent, anti-floating controlled release urea and a preparing method of anti-floating controlled release urea. The anti-floating controlled release urea is made by applying the anti-floating agent to surfaces of controlled release urea particles. The preparing method includes the steps of a, providing or preparing the controlled release urea particles; b, mixing APG (alkyl polyglucoside), AEC (sodium fatty alcohol polyoxyethylene ether carboxylate) and coco-glucoside according to a preset ratio to obtain the anti-floating agent; c, loading the controlled release urea particles into a coating unit; and d, spraying the anti-floating agent prepared in the step b, to the surfaces of the controlled release urea particles to obtain the anti-floating controlled release urea. The anti-floating agent is made from natural recyclable resources and is green, low in toxicity and stimulus, prone to biological degradation, friendly to soil and water and environment, high in activity and low in addition. The anti-floating controlled release urea is especially suitable for rice planting.

Description

technical field [0001] The invention belongs to the technical field of controlled-release fertilizers, and in particular relates to an anti-floating agent, anti-floating controlled-release urea and a preparation method thereof. Background technique [0002] Rice is one of the most important food crops in my country, with the most extensive planting area. It plays a cornerstone role in my country's food security. Therefore, ensuring the stable increase of rice production is the direction that many agricultural researchers have been studying. Controlled-release urea is a kind of controlled-release fertilizer. It has the function of regulating and controlling the release of nitrogen nutrients. It can ensure that the release rate of nitrogen is basically synchronized with the demand for nitrogen nutrients in different growth stages of rice. It can meet the physiological demand for nitrogen in the whole growth period of rice, improve the utilization rate of fertilizer, save labor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
Inventor 石称华钱志红连晓敏周芳
Owner 上海永通生态工程股份有限公司
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