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Selenium-rich bio-organic fertilizer and preparation method thereof

A bio-organic fertilizer and selenium-enriched technology, applied in fertilization devices, fertilizer mixtures, climate change adaptation, etc., can solve problems such as high production costs, adverse effects of actual use, and poor results, and achieve pollution-free and long-lasting selenium-enriched effects The effect of stabilizing and inhibiting the occurrence of crop diseases and insect pests

Inactive Publication Date: 2019-05-07
STANLEY FERTILIZER SUIPING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of existing selenium-enriched bio-organic fertilizers is limited, the effect is not good, and the production cost is relatively high, causing its actual use to be adversely affected

Method used

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  • Selenium-rich bio-organic fertilizer and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] A selenium-enriched bio-organic fertilizer is prepared from the following raw materials in parts by weight: 200 parts of poultry manure, 100 parts of distiller's grain residue, 100 parts of furfural residue, 50 parts of diatomaceous earth, 4 parts of compound microbial agent, soil 6 parts of conditioner, 0.3 part of sodium selenite, 1 part of polylactic acid / glycolic acid nanospheres and 1 part of synergist;

[0022] The polylactic acid / glycolic acid nanospheres are prepared by the following method: take 25 mg of polylactic acid / glycolic acid and dissolve them in dichloromethane, add 100 μL of liquid perfluorohexane under ice-bath conditions, sonicate for 5 minutes, and then add the mixture Polyvinyl alcohol with a mass of 3% was homogenized by a dispersing homogenizer for 5 minutes to obtain double emulsion; the double emulsion was fully stirred to volatilize methylene chloride, washed with distilled water, and centrifuged to obtain polylactic acid / glycolic acid nanosph...

Embodiment 2

[0033] A selenium-enriched bio-organic fertilizer is prepared from the following raw materials in parts by weight: 300 parts of poultry manure, 150 parts of distiller's grain residue, 150 parts of furfural residue, 60 parts of diatomite, 5 parts of compound microbial agent, soil 8 parts of conditioning agent, 0.4 parts of sodium selenite, 3 parts of polylactic acid / glycolic acid nanospheres and 2 parts of synergist;

[0034] The polylactic acid / glycolic acid nanospheres are prepared by the following method: take 25 mg of polylactic acid / glycolic acid and dissolve them in dichloromethane, add 100 μL of liquid perfluorohexane under ice-bath conditions, sonicate for 5 minutes, and then add the mixture Polyvinyl alcohol with a mass of 3% was homogenized by a dispersing homogenizer for 5 minutes to obtain double emulsion; the double emulsion was fully stirred to volatilize methylene chloride, washed with distilled water, and centrifuged to obtain polylactic acid / glycolic acid nanosp...

Embodiment 3

[0045] A selenium-enriched bio-organic fertilizer is prepared from the following raw materials in parts by weight: 400 parts of poultry manure, 200 parts of distiller's grain residue, 200 parts of furfural residue, 70 parts of diatomaceous earth, 6 parts of compound microbial agent, soil 10 parts of conditioner, 0.5 parts of sodium selenite, 5 parts of polylactic acid / glycolic acid nanospheres and 3 parts of synergist;

[0046] The polylactic acid / glycolic acid nanospheres are prepared by the following method: take 25 mg of polylactic acid / glycolic acid and dissolve them in dichloromethane, add 100 μL of liquid perfluorohexane under ice-bath conditions, sonicate for 5 minutes, and then add the mixture Polyvinyl alcohol with a mass of 3% was homogenized by a dispersing homogenizer for 5 minutes to obtain double emulsion; the double emulsion was fully stirred to volatilize methylene chloride, washed with distilled water, and centrifuged to obtain polylactic acid / glycolic acid nan...

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Abstract

The invention discloses a selenium-rich bio-organic fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers, wherein the selenium-rich bio-organic fertilizer isprepared by using livestock and poultry manure, lees residue, furfural residue, diatomaceous earth, a compound microbial agent, a soil conditioner, sodium selenite, polylactic acid / glycolic acid nanometer microspheres and a synergist as raw materials. According to the present invention, livestock and poultry manure, lees residue, furfural residue and other organic matters are used as the matrix, such that the complete nutrients are provided for crops; sodium selenite is used as the selenium source to provide selenium for crops, and polylactic acid / glycolic acid nanometer microspheres are addedto effectively and completely adsorb nutrients and selenium so as to achieve sustained release and avoid contamination of selenite to soil; by adding polyaspartic acid and rhamnolipid as the synergist, the efficient absorption of selenium by crops can be promoted; the added microbial agent can control the soil-borne fungi and bacterial diseases of various crops; and the product can effectively adjust the soil structure and improve the soil condition.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a selenium-enriched bio-organic fertilizer and a preparation method thereof. Background technique [0002] Selenium, whose properties are between metals and nonmetals, was discovered by Swedish chemist Berzelius in 1818. In ancient Greek, selenium means "moon goddess". Selenium is a relatively rare trace element and is the 34th element in the periodic table. In the earth's crust, the content of selenium is only 1 / 100000000. Since selenium was discovered, people's understanding of selenium has undergone earth-shaking changes. In 1930, people believed that selenium was a highly toxic element. In the 1940s, people believed that selenium was a carcinogen. It was not until 1957 that selenium was proved to be an essential trace element for life. Since then, selenium has been announced by the World Health Organization as 15 essential elements for the human body. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCY02A40/70
Inventor 王勇王沛佩宋春慧
Owner STANLEY FERTILIZER SUIPING CO LTD
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