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Manufacturing method of multifunctional humic acid fertilizer with water retention and fertilizer retention functions

A water-retaining and fertilizer-retaining technology, and a manufacturing method, which can be applied to fertilizer mixtures, fertilization devices, applications, etc., and can solve the problems of water-retaining agents relying on imports and high prices

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

At present, the water-retaining agents used in China mainly rely on imports, which are expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 1. Multifunctional humic acid urea formula for water and fertilizer retention:

[0055] Oyster shell powder: chitosan: humic acid urea: polyacrylamide: organic acid chelated titanium: urea peroxide in a weight ratio of 100:1.5:60:65:0.5:0.5.

[0056] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0057] Dissolve 1.5kg of chitosan in 150kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution.

[0058] Soak 100kg of oyster shells with a fineness greater than or equal to 200 mesh in the chitosan solution for 60 minutes.

[0059] 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~30min, and the oyster shell powder was repeatedly modified and baked. Chitosan-modified oyster shell powder ad...

Embodiment 2

[0067] 1. Formula of multifunctional humic acid phosphate fertilizer for water and fertilizer retention:

[0068] Oyster shell powder: chitosan: humic acid phosphate fertilizer: polyacrylamide: organic acid chelated titanium: urea peroxide in a weight ratio of 100:2.0:70:75:1.0:1.0.

[0069] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0070] Dissolve 2.0kg of chitosan in 200kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution.

[0071] Soak 100kg of oyster shells with a fineness greater than or equal to 200 mesh in the chitosan solution for 60 minutes.

[0072] 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~30min, and the oyster shell powder was repeatedly modified and baked. Chito...

Embodiment 3

[0080] 1. Formula of multifunctional potassium humate fertilizer for water and fertilizer retention:

[0081] Oyster shell powder: chitosan: potassium humate: polyacrylamide: organic acid chelated titanium: urea peroxide in a weight ratio of 100:2.5:80:80:1.5:1.5.

[0082] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0083] Dissolve 2.5kg of chitosan in 250kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution.

[0084] Soak 100kg of oyster shells with a fineness greater than or equal to 200 mesh in the chitosan solution for 60 minutes.

[0085] 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~30min, and the oyster shell powder was repeatedly modified and baked. Chitosan-modified oyster...

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Abstract

The invention discloses a manufacturing method of a multifunctional humic acid fertilizer with water retention and fertilizer retention functions, which is characterized in that a modified oyster shell powder adsorbent prepared by modifying oyster shells with chitosan under assistance of microwave is compounded with a water-retaining and fertilizer-retaining agent prepared from humate, polyacrylamide and an initiator to prepare the multifunctional humic acid fertilizer with the water retention and fertilizer retention functions, which contains oyster shell powder, chitosan, humate, polyacrylamide, organic acid chelated titanium and urea peroxide.

Description

technical field [0001] The invention belongs to the technical field of fertilizer manufacture, and in particular relates to a modified oyster shell powder adsorbent prepared by microwave-assisted chitosan modified oyster shell powder and a water-absorbing and water-retaining agent made of humic acid, polyacrylamide and an initiator. The invention discloses a method for manufacturing a multifunctional humic acid fertilizer with water and fertilizer retention, which contains oyster shell powder, chitosan, humic acid, polyacrylamide, organic acid chelated titanium, and urea peroxide. Background technique [0002] my country is a country with severe drought and water shortage. Coupled with the recent deterioration of climate and environment, a lot of cultivated land and forest land are in drought or drought for many years. There is an urgent need for a high-efficiency, multi-functional fertilizer that retains water and fertilizer. [0003] There are many saline-alkali soils, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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