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Manufacture method of chitin biological fertilizer with slow-release function

A manufacturing method and technology of chitin, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of unsatisfactory stability and slow-release effect, and achieve the effects of improving stability, improving quality, and increasing output

Inactive Publication Date: 2013-04-03
FUJIAN CHAODA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, this patented technology is relatively simple for chitin bonding and sealing, and its stability and slow-release effect are not ideal enough.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] 1. Formula of chitin biological fertilizer with slow release function:

[0064] Oyster shell powder: chitosan: chitin: humic acid urea: polyacrylamide: organic acid chelated titanium: urea peroxide in a weight ratio of 100:3.0:10:10:10:0.5:0.5.

[0065] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0066] Dissolve 3.0kg of chitosan in 300kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution;

[0067] Soak 100kg of oyster shells with a fineness ≥ 200 mesh in the chitosan solution for 60 minutes, drain and separate the oyster shell powder and the remaining chitosan solution;

[0068] The mixture of oyster shell powder and chitosan solution was placed in polyvinyl fluoride containers in batches, and irradiated in a microwave field with a microwave operating frequency of 2450MHz and a microwave power of 5KW for 15min to 30min, so that the oyster shell powder and chito...

Embodiment 2

[0077] 1. Formula of chitin biological fertilizer with slow release function:

[0078] Oyster shell powder: chitosan: chitin: humic acid urea: polyacrylamide: organic acid chelated titanium: urea peroxide in a weight ratio of 100:4.0:12.5:15:15:0.75:0.75.

[0079] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0080] Dissolve 4.0kg of chitosan in 400kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution;

[0081] Soak 100kg of oyster shells with a fineness ≥ 200 mesh in the chitosan solution for 60 minutes, drain and separate the oyster shell powder and the remaining chitosan solution;

[0082] The mixture of oyster shell powder and chitosan solution was placed in polyvinyl fluoride containers in batches, and irradiated in a microwave field with a microwave operating frequency of 2450MHz and a microwave power of 5KW for 15min to 30min, so that the oyster shell powder and c...

Embodiment 3

[0091] 1. Formula of chitin biological fertilizer with slow release function:

[0092] Oyster shell powder: chitosan: chitin: humic acid urea: polyacrylamide: organic acid chelated titanium: urea peroxide in a weight ratio of 100:5.0:15:20:20:1.5:1.5.

[0093] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0094] Dissolve 5.0kg of chitosan in 500kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution;

[0095] Soak 100kg of oyster shells with a fineness ≥ 200 mesh in the chitosan solution for 60 minutes, drain and separate the oyster shell powder and the remaining chitosan solution;

[0096] The mixture of oyster shell powder and chitosan solution was placed in polyvinyl fluoride containers in batches, and irradiated in a microwave field with a microwave operating frequency of 2450MHz and a microwave power of 5KW for 15min to 30min, so that the oyster shell powder and chito...

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PUM

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Abstract

The invention discloses a manufacture method of a chitin biological fertilizer with a slow-release function. The manufacture method is characterized by comprising the following steps in sequence: modifying oyster shells by chitosan under the assistance of the microwave time and again, thus obtaining a modified oyster shell powder adsorbent in which chitosan and chitosan oligosaccharide are adsorbed and embedded and chitin is wrapped; compounding the modified oyster shell powder adsorbent with chitin; and compounding the product with a water swelling and conservation agent so as to obtain the slow-release type chitin biological fertilizer which contains the oyster shell powder, chitosan (chitosan oligosaccharide), chitin, humic acid, polyacrylamide, organic acid chelate titanium and urea peroxide, wherein the water swelling and conservation agent comprises humic acid, polyacrylamide and an initiator.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a method for preparing microelement fertilizers containing organic titanium by using a microwave chelation process. Background technique [0002] With the long-term use of chemical fertilizers, hundreds of millions of years of accumulated chitin and chitosan have been destroyed. With the long-term use of pesticides, insects in farmland have been greatly reduced, breaking the chitin cycle chain. The lack of chitin and chitosan in the soil, the lack of nutrients for actinomycetes, and the inability of the actinomycetes to reproduce, the poor immune function of crops, and the pathogenic bacteria in the environment have led to serious crop diseases. [0003] The cycle chain of chitin in nature is that insects fall into the soil after death, providing a food source for soil microorganisms. On the other hand, chitin is decomposed by chitinase and chitosanase in the soil...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 徐福乐翁莹冰张美娟林秀翁仁发
Owner FUJIAN CHAODA GROUP
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