Selenium-enriched fertile solution and application method for selenium-enriched agricultural product production

A selenium-enriched fertilizer and selenium-enriched technology, applied in the field of selenium-enriched crop production, can solve the problems of complex process and high preparation cost, and achieve the effects of simple preparation method, increased selenium content and low cost

Inactive Publication Date: 2008-05-21
慈溪市蔬菜开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the above-mentioned shortcomings of high production cost and complicated process of existing selenium-enriched products, the present invention provides a selenium-enr...

Method used

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  • Selenium-enriched fertile solution and application method for selenium-enriched agricultural product production
  • Selenium-enriched fertile solution and application method for selenium-enriched agricultural product production
  • Selenium-enriched fertile solution and application method for selenium-enriched agricultural product production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First produce selenium-enriched fertilizer liquid according to the following steps:

[0029] a. Wash the coal ash particles from the coal flue;

[0030] b. Dry the obtained coal ash particles, pulverize them, and pass through an 80-mesh sieve;

[0031] c. Add the sieved coal ash to the extract, which contains sodium hydroxide and sodium disulfite, wherein the mass percentage of sodium hydroxide is 3%, and the mass percentage of sodium disulfite is 4%. , Sodium bisulfite reduces selenic acid to selenous acid, which is very soluble in water, because selenous acid is easily oxidized to reddish-brown selenium mud precipitation and loses its activity, in order to maintain its stability, it is generally made into selenous acid Sodium acid, the effect of sodium hydroxide is exactly to generate sodium selenite with the effect of selenous acid;

[0032] d. Then add sodium thiosulfate to the above solution, add sodium thiosulfate to make soluble arsenite into insoluble sulfide,...

Embodiment 2

[0037] First produce selenium-enriched fertilizer liquid according to the following steps:

[0038] a. Wash the coal ash particles from the coal flue;

[0039] b. Dry the obtained coal ash particles, pulverize them, and pass through an 80-mesh sieve;

[0040] c. Add the sieved coal ash to the extract, which contains sodium hydroxide and sodium disulfite, wherein the mass percentage of sodium hydroxide is 3%, and the mass percentage of sodium disulfite is 4%. , Sodium bisulfite reduces selenic acid to selenous acid, which is very soluble in water, because selenous acid is easily oxidized to reddish-brown selenium mud precipitation and loses its activity, in order to maintain its stability, it is generally made into selenous acid Sodium acid, the effect of sodium hydroxide is exactly to generate sodium selenite with the effect of selenous acid;

[0041] d. Then add sodium thiosulfate to the above solution, add sodium thiosulfate to make soluble arsenite into insoluble sulfide,...

Embodiment 3

[0046] First produce selenium-enriched fertilizer liquid according to the following steps:

[0047] a. Wash the coal ash particles from the coal flue;

[0048] b. Dry the obtained coal ash particles, pulverize them, and pass through an 80-mesh sieve;

[0049] c. Add the sieved coal ash to the extract, which contains sodium hydroxide and sodium disulfite, wherein the mass percentage of sodium hydroxide is 3%, and the mass percentage of sodium disulfite is 4%. , Sodium bisulfite reduces selenic acid to selenous acid, which is very soluble in water, because selenous acid is easily oxidized to reddish-brown selenium mud precipitation and loses its activity, in order to maintain its stability, it is generally made into selenous acid Sodium acid, the effect of sodium hydroxide is exactly to generate sodium selenite with the effect of selenous acid;

[0050] d. Then add sodium thiosulfate to the above solution, add sodium thiosulfate to make soluble arsenite into insoluble sulfide,...

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Abstract

A selenium-enriched fertilizer liquid is produced according to the steps as follows: coal ash granules are washed down from a coal flue by water; the obtained coal ash granules are aired, crushed and sieved through an eighty-mesh sieve; the coal ash after sieving is added into extract liquid which contains sodium hydroxide and sodium dithionite; sodium hyposulfite is added into the solution; the solution after being disposed by the sodium hyposulfite is put into a sedimentation barrel to be placed statically for 24 hours, and clear liquid at the upper layer is taken; the clear liquid at the upper layer which is obtained from last step is neutralized by vitriol, the pH value is adjusted to be 8 to 8.5, and the selenium-enriched fertilizer liquid is obtained. The method of applying the selenium-enriched fertilizer liquid to the production of the selenium-enriched agricultural products is that before the agricultural products are harvested, the selenium-enriched fertilizer liquid is diluted till 100ppm to 200ppm and sprayed at the agricultural products. The invention adopts the coal ash which is washed down from the coal flue by water to extract inorganic selenium, the manufacturing method of which is simple with very low cost, and the selenium content of the agricultural products can be improved effectively by spraying the manufactured selenium-enriched fertilizer liquid at the crop.

Description

(1) Technical field [0001] The invention relates to a selenium-rich fertilizer solution for producing selenium-rich crops, and also relates to a method for using the selenium-rich fertilizer solution for the production of selenium-rich crops. (2) Background technology [0002] Selenium is an essential trace element for the human body. It participates in the metabolism, synthesis, cleaning and repair of the human body, participates in the synthesis of lymphocytes, T cells, phagocytes, peptide glands, interferon and various enzymes, and participates in the repair and maintenance of various glands. normal secrete. [0003] 1. Metabolism: Selenium widely exists in various tissue cells of the human body, inhibits the generation of peroxidized esters, promotes the excretion of uric acid and inosine, and participates in the metabolism of sugar, fat, and amino acids in the body. [0004] 2. Synthesis: Selenium participates in the synthesis of ribonucleic acid and deoxyribonucleic a...

Claims

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Application Information

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IPC IPC(8): C05D9/02
Inventor 陈立军
Owner 慈溪市蔬菜开发有限公司
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