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Stabilized selenium-enriched fertilizer and preparation method thereof

A stable, selenium-enriched fertilizer technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve problems such as narrow range of selenium beneficial and harmful to plants, failure to produce selenium-enriched crops, and difficulty in absorption and utilization. The effect of enhancing selenium enrichment ability of crops, simple and easy preparation method and improving utilization rate

Active Publication Date: 2014-10-01
INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to increase the selenium content of crops, selenium application measures can be used to strengthen the absorption of selenium by plants. However, the range of beneficial and harmful selenium to plants is very narrow. The purpose of selenium crops; although foliar spraying selenium is easy to be absorbed, it mostly exists in an inorganic state in the plant body, which is not easy to be absorbed and utilized by the human body, and is easy to cause poisonous effects on plants; although applying selenium to the soil is conducive to the production of selenium rich in organic selenium crops, but selenium is easily fixed by soil, especially by iron and manganese oxides in acidic soil

Method used

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  • Stabilized selenium-enriched fertilizer and preparation method thereof

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Effect test

Embodiment 1

[0020] Weigh 44g of sodium selenite (20g of pure selenium), 20g of methionine, 400g of slaked lime, 2.0kg of fulvic acid, and 198kg of zeolite powder, crushed and sieved, granulated in a granulator, dried and sieved, The obtained fertilizer particles have a particle size of 2 to 4 mm, and then spray 0.6L of 5% carboxymethyl cellulose solution in the coating machine, stir and mix for 4 minutes, and dry to obtain a stable rich selenium content of 0.01% of the present invention. Selenium fertilizer.

[0021] Among them, the mass ratio of pure selenium, amino acid substances, soil synergistic substances, and stable substances in selenium-containing substances is 1:1:20:100.

Embodiment 2

[0023] Weigh 420g of sodium selenite (192g of pure selenium), 25.0g of selenomethionine (10g of pure selenium), 2.0kg of cysteine, 10.1kg of slaked lime, 40.4kg of humic acid, and 147kg of zeolite powder. Granulate in a granulator, dry and sieving to obtain a fertilizer particle size of 2 to 4 mm, then spray 1L of 3% carboxymethyl cellulose solution in the coating machine, stir and mix for 4 minutes, and dry it immediately The stable selenium-enriched fertilizer containing 0.1% selenium of the present invention is prepared.

[0024] Among them, the mass ratio of pure selenium, amino acid substances, soil synergistic substances, and stable substances in selenium-containing substances is 1:10:50:200.

Embodiment 3

[0026] Weigh 22g of sodium selenite (10.0g of pure selenium), 24g of sodium selenate (10.0g of pure selenium), 20g of selenomethionine (8.05g of pure selenium), 62.2g of cysteine, and 50g of polyglutamic acid , Phosphogypsum 500g, fly ash 341.5g, humic acid 2.0kg, fulvic acid 1.0kg, biomass carbon 0.93kg, zeolite powder 195kg, crushed and sieved, granulated in a granulator, dried and sieved, The obtained fertilizer particles have a particle size of 2 to 4 mm, and then spray 0.8L of 4% sodium silicate solution in the coating machine, stir and mix for 4 minutes, and dry to obtain the 0.01% selenium-containing stable selenium-rich fertilizer of the present invention .

[0027] Among them, the mass ratio of pure selenium, amino acid substances, soil synergistic substances, and stable substances in selenium-containing substances is 1:4:30:140.

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Abstract

The invention relates to the field of crop fertilizers, in particular to a stabilized selenium-enriched fertilizer and a preparation method thereof. The stabilized selenium-enriched fertilizer comprises the raw materials including a selenium-containing substance, an amino acid substance, a soil enhancement substance, a stabilized substance and a coating substance, wherein the mass proportion of pure selenium in the selenium-containing substance, the amino acid substance, the soil enhancement substance and the stabilized substance is 1:(1-10):(20-50):(100-200), and the mixture obtained by pelleting 1 kg coating substance is added with 3-5ml of 3-5 percent coating solution. According to the stabilized selenium-enriched fertilizer, provided by the invention, in the respects of slow release, fixation prevention, absorption promotion and the like, after the stabilized selenium-enriched fertilizer is applied, the selenium enhancing ability of the crop is remarkably enhanced, and the output is remarkably improved. The invention further provides a preparation method of the stabilized selenium-enriched fertilizer, which is simple and easy to implement, and prepares the stabilized selenium-enriched fertilizer with good use effect.

Description

Technical field [0001] The invention relates to the field of crop fertilizers, in particular to a stable selenium-enriched fertilizer and a preparation method thereof. Background technique [0002] Selenium is an essential nutrient element for the human body. Lack of selenium can lead to various diseases such as Kashin-Beck disease and Keshan disease. Intake of appropriate amount of selenium can not only maintain normal physiological metabolism, prevent selenium deficiency, but also anti-aging and promote detoxification. , Improve the body's immunity and prevent cardiovascular disease and cancer. [0003] Different forms of selenium have obvious differences in the effectiveness of the human body. Among them, the absorption and utilization rate of inorganic selenium is poor, and the organic selenium is easily absorbed by the body. At present, the main source of selenium for most people is food crops. The daily average selenium intake recommended by the International Nutrition Socie...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 张木唐拴虎徐培智黄旭张发宝黄巧义逄玉万易琼李苹付弘婷
Owner INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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