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Long-acting mineral selenium-enriched fertilizer

A selenium-enriched fertilizer and mineral technology, applied in the field of fertilizers, can solve the problems of high production and transportation costs, limited selenium deposits, cumbersome fertilization projects, etc., and achieve the effects of improving health, saving agricultural production costs, and simple proportioning

Inactive Publication Date: 2016-10-12
马瑞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the main means to increase the selenium content of agricultural products are spraying liquid fertilizer on the leaves and using long-acting base fertilizers made of selenium ore. 3 times, the labor cost is high; and the long-acting base fertilizer made of selenium ore, due to the limited stock of selenium deposits, there is only one selenium deposit found in Enshi, Hubei Province in the country, the production and transportation costs are high, and it is difficult to meet the needs of large-scale agricultural business development. Selenium agricultural product needs

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Examples

Experimental program
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Effect test

Embodiment 1

[0033] A long-acting mineral selenium-enriched fertilizer is characterized in that it comprises the following components: 100 kg of zeolite and 900 kg of fly ash.

[0034] The average selenium content in the fly ash is 27.9mg.kg -1 ; The zeolite is analcime.

[0035] The preparation method of the present embodiment is as follows:

[0036] (1) Grinding and processing zeolite into zeolite powder with particle size below 200 mesh;

[0037] (2) Grinding and processing fly ash into fly ash powder with particle size below 200 mesh;

[0038] (3) Mix zeolite powder and fly ash powder according to the proportion and stir evenly;

[0039] (4) Spray salt water with a mass concentration of 5% on the mixture in step (3), the amount of spraying is 10% of the total weight of the mixture obtained in step (3), and then the mixture after spraying salt water is made into a diameter of 1 ~1.5mm spherical particles;

[0040] (5) Bake at 430~450°C until the water content is not more than 5%. ...

Embodiment 2

[0043] A long-acting mineral selenium-enriched fertilizer is characterized in that it comprises the following components: 180kg of zeolite and 820kg of fly ash.

[0044] The average selenium content in the fly ash is 29.8mg.kg -1 ; The zeolite is analcime.

[0045] The preparation method of the present embodiment is as follows:

[0046] (1) Grinding and processing zeolite into zeolite powder with particle size below 200 mesh;

[0047] (2) Grinding and processing fly ash into fly ash powder with particle size below 200 mesh;

[0048] (3) Mix zeolite powder and fly ash powder according to the proportion and stir evenly;

[0049] (4) Spray salt water with a mass concentration of 5% on the mixture in step (3), the amount of spraying is 10% of the total weight of the mixture obtained in step (3), and then the mixture after spraying salt water is made into a diameter of 1 ~1.5mm spherical particles;

[0050] (5) Bake at 430~450°C until the water content is not more than 5%.

Embodiment 3

[0052] A long-acting mineral selenium-enriched fertilizer is characterized in that it comprises the following components: 300kg of zeolite and 700kg of fly ash.

[0053] The average selenium content in the fly ash is 32.3mg.kg -1 ; The zeolite is analcime.

[0054] The preparation method of the present embodiment is as follows:

[0055] (1) Grinding and processing zeolite into zeolite powder with particle size below 200 mesh;

[0056] (2) Grinding and processing fly ash into fly ash powder with particle size below 200 mesh;

[0057] (3) Mix zeolite powder and fly ash powder according to the proportion and stir evenly;

[0058] (4) Spray salt water with a mass concentration of 5% on the mixture in step (3), the amount of spraying is 10% of the total weight of the mixture obtained in step (3), and then the mixture after spraying salt water is made into a diameter of 1 ~1.5mm spherical particles;

[0059] (5) Bake at 430~450°C until the water content is not more than 5%.

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Abstract

The invention provides a long-acting mineral selenium-enriched fertilizer, comprising fly ash and zeolite; the Se content in the fly ash is 27.9~36.3mg.kg ‑1 The preparation method comprises the following steps: grinding and processing zeolite into zeolite powder with a particle size below 200 mesh; grinding and processing fly ash into fly ash powder with a particle size below 200 mesh; Mix and stir evenly; spray salt water with a mass concentration of 5% on the mixture, and then make the mixture after spraying salt water into spherical particles with a diameter of 1~1.5mm; bake at 430~450°C until the water content reaches More than 5%; finished product packaging, the present invention can make soil and crops reach selenium-enriched level, effectively utilize coal-fired fertilizers, and be highly efficient and environmentally friendly.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a long-acting mineral selenium-enriched fertilizer and a preparation method thereof. Background technique [0002] Selenium is an important component of some antioxidant enzymes (glutathione peroxidase) and selenium-P protein in animals and humans, and plays a role in balancing the redox atmosphere in the body. Selenium deficiency will directly lead to the decline of human immunity. Clinical medicine has proved that more than 40 kinds of diseases that threaten human health and life are related to human selenium deficiency, such as cancer, cardiovascular disease, liver disease, cataract, pancreatic disease, diabetes, reproductive systemic diseases, etc. [0003] Selenium is deficient in 42 countries and regions around the world, and 72% of China's soil is deficient in selenium. According to the survey results of the Hebei Provincial Geological Survey Institute, the soil in the Hebei P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05D9/02
CPCC05D9/02
Inventor 马瑞马瑞青
Owner 马瑞
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