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Manufacture method of synergic type nitrogenous fertilizer with slow release and loss control effect

A manufacturing method, slow-release technology, applied in the direction of fertilization device, fertilizer mixture, application, etc.

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

[0039] However, the main body of the modified oyster shell powder adsorbent made by microwave-assisted chitosan modification has not been found in China, and the developed The report on the slow-release and loss-controlling materials of fertilizer nutrients which have the effect of releasing nutrients and controlling the loss of fertilizer nutrients

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] Synergistic urea production with slow release and loss control:

[0092] 1. Composition and formula of slow release and loss control materials:

[0093] Oyster shell powder: chitosan: humic acid: polyacrylamide: organic acid chelated titanium: urea peroxide is composed in a weight ratio of 100:1.0:4.0:3.0:0.10:0.10.

[0094] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0095] Dissolve 10kg of chitosan in 1000kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution.

[0096] Soak 1000kg of oyster shells with a fineness greater than or equal to 100 mesh in the chitosan solution for 60 minutes.

[0097] Place the mixture of oyster shell powder and chitosan solution in batches in a polyvinyl fluoride container, and irradiate the oyster shell powder in a microwave field with a microwave operating frequency of 2450 MHz and a microwave power of 10 KW for 15 minutes to 30 ...

Embodiment 2

[0109] Manufacture of synergistic ammonium sulfate fertilizer with slow release and loss control effects:

[0110] 1. Composition and formula of slow release and loss control materials:

[0111] Oyster shell powder: chitosan: humic acid: polyacrylamide: organic acid chelated titanium: urea peroxide is composed in a weight ratio of 100:0.5:3.0:2.5:0.05:0.05.

[0112] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0113] Dissolve 5kg of chitosan in 1000kg of aqueous solution containing 5% organic acid to prepare a 0.5% concentration of chitosan solution.

[0114] Soak 1000kg of oyster shells with a fineness greater than or equal to 100 mesh in the chitosan solution for 60 minutes.

[0115] Place the mixture of oyster shell powder and chitosan solution in batches in polyvinyl fluoride containers, and irradiate the oyster shell powder in a microwave field with a microwave operating frequency of 2450MHz and a microwave powe...

Embodiment 3

[0127] Manufacture of synergistic ammonium bicarbonate fertilizer with slow release and loss control effects:

[0128] 1. Composition and formula of slow release and loss control materials:

[0129] Oyster shell powder: chitosan: humic acid: polyacrylamide: organic acid chelated titanium: urea peroxide is composed in a weight ratio of 100:2.0:5.0:4.0:0.15:0.15.

[0130] 2. Microwave-assisted modification of chitosan to manufacture modified oyster shell powder adsorbent:

[0131] Dissolve 5kg of chitosan in 2000kg of aqueous solution containing 5% organic acid to prepare a 1.0% concentration of chitosan solution.

[0132] Soak 1000kg of oyster shells with a fineness greater than or equal to 100 mesh in the chitosan solution for 60 minutes.

[0133] Place the mixture of oyster shell powder and chitosan solution in batches in a polyvinyl fluoride container, and irradiate the oyster shell powder in a microwave field with a microwave operating frequency of 2450 MHz and a microwav...

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Abstract

The invention discloses a manufacture method of a synergic type nitrogenous fertilizer with a slow release and loss control effect. The manufacture method comprises the following steps in sequence: preparing a modified oyster shell powder adsorbent by modifying through chitosan under the assistance of the microwave; preparing a water swelling and conservation agent by humic acid, polyacrylamide and an initiator; compounding the modified oyster shell powder adsorbent with the water swelling and conservation agent to obtain a fertilizer nutritional ingredient slow release and loss control material which contains oyster shell powder, chitosan, humic acid, polyacrylamide, organic acid chelate titanium and urea peroxide (based on weight ratio of 100: 0.5 to 3.0: 3.0 to 5.0: 2.5 to 4.0: 0.05 to 0.15: 0.05 to 0.15); and compounding the fertilizer nutritional ingredient slow release and loss control material with conventional nitrogenous fertilizer based on the weight ratio of 1: 5.0 to 6.5, so as to obtain the synergic type nitrogenous fertilizer which contains the slow release and loss control material and a plurality of synergists and has the slow release and loss control effect.

Description

technical field [0001] The invention belongs to the field of fertilizer manufacturing technology, and in particular relates to slow-release and controlled loss of nutrients in fertilizers compounded by microwave-assisted chitosan-modified oyster shell powder adsorbent and water-absorbing and water-retaining agent made of humic acid, polyacrylamide and initiator Materials, and then compounded with traditional nitrogen fertilizers to form a slow-release and loss-controlling material and a variety of nitrogen fertilizer synergists, a manufacturing method of a synergistic nitrogen fertilizer with slow-release and loss-controlling effects. Background technique [0002] Fertilizer is a strategic material to ensure national food security, and it is the material basis for maintaining and improving soil fertility and realizing sustainable agricultural development. [0003] According to the statistics of the World Food and Agriculture Organization, my country's nitrogen fertilizer con...

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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