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High-purity chito-oligosaccharide controlled release fertilizer based on separation techniques and preparing method thereof

A separation technology and slow-release fertilizer technology, applied in the field of high-purity chitosan oligosaccharide slow-release fertilizer and its preparation, can solve the problems of poor adaptability and great influence on nutrient release speed, so as to improve yield and quality, and increase soil air permeability , promote the effect of nutrient absorption

Inactive Publication Date: 2015-09-23
山东卫康生物医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with ordinary fertilizers, these fertilizers have a certain slow and controlled release effect, but because the coating material is water-soluble, its nutrient release rate is greatly affected by water. The adaptability of crops is poor, and the law of fertilizer nutrient release is difficult to match the law of crop nutrient absorption

Method used

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  • High-purity chito-oligosaccharide controlled release fertilizer based on separation techniques and preparing method thereof
  • High-purity chito-oligosaccharide controlled release fertilizer based on separation techniques and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0070] Oligochitosan slow release fertilizer, NPK (N-P 2 o 5 -K 2 O) content is respectively 18%, 4%, 18%, all are percentage by mass, and raw material composition is as follows:

[0071] 4% chitosan oligosaccharide coated urea 60 parts,

[0072] 60 parts of 6% chitosan oligosaccharide coated urea,

[0073] 225 parts of urea,

[0074] 100 parts of ammonium sulfate,

[0075] Superphosphate 150 parts,

[0076] Calcium magnesium phosphate fertilizer 90 parts,

[0077] Potassium sulfate 300 parts,

[0078] Humic acid 10 parts,

[0079] 5 parts of EDTA chelated trace elements;

[0080] Put the above-mentioned raw materials together into a blender and stir for 5-10 minutes, then fully mix, then measure and pack.

Embodiment 2

[0082] Oligochitosan slow release fertilizer, NPK (N-P 2 o 5 -K 2 O) content is 15%, 5%, 20% respectively, all are percentage by mass, and raw material composition is as follows:

[0083] 4% chitosan oligosaccharide coated urea 50 parts,

[0084] 6% chitosan oligosaccharide coated urea 50 parts,

[0085] 190 parts of urea,

[0086] 90 parts of ammonium sulfate,

[0087] 175 parts of superphosphate,

[0088] Calcium magnesium phosphate fertilizer 100 parts,

[0089] Potassium sulfate 330 parts,

[0090] Humic acid 10 parts,

[0091] 5 parts of EDTA chelated trace elements;

[0092] Put the above-mentioned raw materials together into a blender and stir for 5-10 minutes, then fully mix, then measure and pack.

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Abstract

The invention discloses a high-purity chito-oligosaccharide controlled release fertilizer and relates to the technical field of agricultural fertilizers. The high-purity chito-oligosaccharide controlled release fertilize is made from 4% of chito-oligosaccharide coated urea, 6% of another chito-oligosaccharide coated urea, urea, ammonium sulfate, calcium superphosphate, calcium magnesium phosphate, potassium sulfate, humic acid, and EDTA (ethylene diamine tetraacetic acid) chelated trace elements. The high-purity chito-oligosaccharide controlled release fertilizer has unique action on growth of crops, has the effects such as activating crop cells and promoting growth, can activate defensive reaction in plants, start anti-virus genetic expression and induce disease resistance in the crops, has the function of immunizing and killing various fungi, germs and viruses to decrease disease and pest damage to the crops, also can effectively increase the quantity and activity of soil microorganisms and improve the soil environment, is a multifunction novel fertilizer green, pollution free and soil improving, and is worthy of wide application.

Description

technical field [0001] The invention belongs to the technical field of slow and controlled release fertilizer production, in particular to a high-purity chitosan oligosaccharide slow release fertilizer based on separation technology and a preparation method thereof. Background technique [0002] Chitosan oligosaccharide refers to oligosaccharides linked by D-glucosamine with β-1.4 glycosidic bonds, which are obtained by degrading chitin oligosaccharides and then degraded, or low-toxicity and sterilization extracted by microbial fermentation It is a low molecular weight product with good water solubility, great function and high biological activity. Oligochitosan can be used in the agricultural field. Oligochitosan itself is rich in C and N, which can be decomposed and utilized by microorganisms as nutrients for plant growth. Oligochitosan can also induce disease resistance of plants and can be developed as a biological pesticide, Growth regulators and fertilizers, etc....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
Inventor 张文清王宗继焦念强杜广青
Owner 山东卫康生物医药科技有限公司
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