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Preparation method of selenium-enriched earthworm organic fertilizer

A production method and technology of organic fertilizer, applied in fertilization equipment, fertilizer mixture, application, etc., can solve the problems of low selenium content, achieve high amino acid content, increase selenium enrichment, and improve yield and quality

Active Publication Date: 2016-07-20
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, organic fertilizers made from earthworms and vermicompost are mostly used as solid base fertilizers, which need to be used in conjunction with other fertilizers and have low selenium content, which cannot meet the selenium-enriched needs of plants. However, some selenium-enriched fertilizers currently used are mostly inorganic selenium fertilizers. There are certain safety risks in long-term application or improper application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Making the selenium-enriched earthworm organic fertilizer includes the steps of: weighing the fermented livestock and poultry manure and fungus residue according to the mass ratio of 1:1, passing through a 4mm sieve respectively, and then fully mixing evenly to obtain a substrate for raising earthworms; preparing a mass concentration of 3.33g / L sodium selenite aqueous solution, 0.8L sodium selenite aqueous solution is added in the substrate of 20kg weight that obtains; In addition, a certain amount of water is added in the substrate of another 20kg weight that obtains; Adjust two parts of substrate The water content is all 65-70%, and the selenium-enriched feeding substrate and the ordinary feeding substrate are obtained; earthworms are introduced into the obtained selenium-enriched feeding substrate and the ordinary feeding substrate, raised at a temperature of 22-28°C, and added once every 18 days In the same substrate as the original substrate, after the earthworms we...

Embodiment 2

[0035]Making the selenium-enriched earthworm organic fertilizer includes the steps of: weighing the fermented livestock and poultry manure and fungus residue according to the mass ratio of 1:1, passing through a 3mm sieve respectively, and then fully mixing evenly to obtain a substrate for raising earthworms; preparing a mass concentration of The sodium selenite aqueous solution of 3.33g / L, 0.5L sodium selenite aqueous solution is joined in the substrate of the 12.5kg weight that obtains; Another certain amount of water is joined in the substrate of the other 12.5kg weight that obtains; Adjust two The water content of the substrates is all to 65-70%, to obtain a selenium-rich feeding substrate and a common feeding substrate; introduce earthworms into the obtained selenium-rich feeding substrate and common feeding substrate, and raise them at a temperature of 22-28° C., respectively, every 15 days. Add the same substrate as the original substrate once, and after the earthworms a...

Embodiment 3

[0037] Making the selenium-enriched earthworm organic fertilizer includes the steps of: weighing the fermented livestock and poultry manure and fungus residue according to the mass ratio of 1:1, passing through a 5mm sieve respectively, and then fully mixing evenly to obtain a substrate for raising earthworms; preparing a mass concentration of 3.33g / L sodium selenite aqueous solution, 1.0L sodium selenite aqueous solution is added in the substrate of 25kg weight that obtains; In addition, a certain amount of water is added in the substrate of another 25kg weight that obtains; Adjust two parts of substrate The water content is all 65-70%, and the selenium-enriched feeding substrate and the common feeding substrate are obtained; earthworms are introduced into the obtained selenium-enriched feeding substrate and the ordinary feeding substrate, and they are raised at a temperature of 22-28°C, and added once every 20 days In the same substrate as the original substrate, after the ea...

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Abstract

The invention discloses a preparation method of a selenium-enriched earthworm organic fertilizer. The method includes the following steps: in accordance with the mass ratio of 1:1, weighing fermented livestock manure and mushroom dregs, sieving, and mixing evenly to obtain a substrate for feeding earthworms; preparing a selenium-enriched feeding substrate and a normal feeding substrate; introducing the earthworms into the obtained selenium-enriched feeding substrate and the obtained normal feeding substrate, feeding, and separating the earthworms and wormcast; preparing an earthworm homogenate; carrying out enzymatic hydrolysis of the earthworm homogenate, to obtain a selenium-enriched amino acid nutritional original solution; preparing a wormcast extraction liquid; and mixing the wormcast extraction liquid and the selenium-enriched amino acid nutritional original solution, and sterilizing to obtain the fertilizer. The preparation method of the selenium-enriched earthworm organic fertilizer has the characteristics of low production cost and short production cycle; and the obtained product has the advantages of long storage time, complete earthworm decomposition, high organic selenium content and the like.

Description

technical field [0001] The invention relates to the technical field of agricultural organic fertilizers, in particular to a method for preparing selenium-enriched earthworm organic fertilizers. Background technique [0002] Selenium is an essential trace element for the growth and development of humans and animals, and is also a beneficial element for plant growth. Selenium participates in the composition of various important functional enzymes in the body, and plays an extremely important role in maintaining human health and normal physiological metabolism. The distribution of soil selenium resources in my country is uneven and there are large areas of selenium deficiency areas, which directly leads to insufficient supply of selenium in food, the main source of selenium for the human body, and then affects human health. In addition, since the 20th century, the extensive use of inorganic chemical fertilizers and pesticides has resulted in a series of major environmental and...

Claims

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Application Information

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IPC IPC(8): C05G1/00A01K67/033
Inventor 乔玉辉岳士忠张慧琦王瑞萍吴文良
Owner CHINA AGRI UNIV
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