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Method for selenium-enriching cultivation by using selenium powdered ore

A selenium mineral powder and selenium-enriching technology, which is applied in fertilization methods, horticultural methods, botanical equipment and methods, etc., can solve the problems of weak selenium-enrichment effect and large dosage, and achieve the advantages of improving utilization efficiency, increasing content, and facilitating absorption Effect

Inactive Publication Date: 2008-01-30
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for selenium-enriched cultivation using selenium ore powder by exploring and researching the relevant factors of selenium ore powder degrading and releasing the quick-acting amount, so as to solve the problem that the existing mineral powder selenium-enriching method has a large amount, if If the amount of selenium is reduced, the effect of selenium enrichment is weak, so that a small amount of low-quality and low-content selenium resources can be optimally utilized in crop cultivation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]Example 1, planting 66.7m 2 (0.1 mu) of soybeans, variety Edou No. 6, take 5.0 kg of mineral powder with a selenium content of 104 mg / kg and a fineness of 0.25 to 0.5 mm, and use NaOH solution to treat the above-mentioned selenium mineral powder to pH 8.5 , And then use the treated selenium mineral powder as a base fertilizer, and apply it to the dominant root zone about 5 cm away from each hole of soybean seeds. After harvesting, the selenium content of soybeans was tested. The results showed that the selenium content of soybean grains was 0.150mg / kg, which reached the standard above 0.1mg / kg.

Embodiment 2

[0024] Example 2, Planting 66.7m 2 (0.1 mu) of wheat, the variety is E'en No. 4, take 7.5 kg of selenium powder with a selenium content of 392 mg / kg and a fineness of 0.5 to 1 mm, and treat the above-mentioned selenium powder with a KOH solution to pH 9.0. Then use the treated selenium ore powder as a base fertilizer and apply it to the planting row of wheat, and then sow after covering with soil. After harvesting, the selenium content of wheat grains was tested. The results showed that the selenium content of wheat grains was 0.1846mg / kg, reaching the standard of 0.1mg / kg or more.

Embodiment 3

[0025] Example 3, planting 66.7m 2 (0.1 mu) of rapeseed, the variety is Zhongyouza No. 2, take 10kg of mineral powder with a selenium content of 104mg / kg and a fineness of 1~2mm, and use Ca(OH) 2 The solution treats the above-mentioned selenium mineral powder to PH8.5, and then uses the treated selenium mineral powder as a base fertilizer, and applies the treated selenium mineral powder to the rape transplanting row within a radius of 15cm from the transplanted seedlings, and then transplants after covering with soil. After harvest, the selenium content of rapeseeds was tested. The results showed that the selenium content of rape seeds was 0.1350mg / kg, which reached the standard of 0.1mg / kg or more.

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PUM

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Abstract

The invention provides a selenium-rich growing method employing selenium dust, which is characterized in that: (1) the particle size of selenium is as fine as below 2mm; (2) the selenium dust is treated with the above particle size to pH8.5-9.0; (3) the treated selenium dust is used as base fertilizer according the dosage of 50-100kg / 667m2. The invention has the beneficial effects that: the contend of water soluble selenium in the mineral dust can be enhanced to be absorbed by crops with the dosage of only 50-100kg / 667m2 to generally increase the selenium contend of crop above the standard of 0.1mg / kg, which greatly improves the utilization ratio of low contend and low quality selenium mineral source.

Description

Technical field: [0001] The present invention relates to agricultural planting, in particular to a cultivation method for increasing the nutrient content of food crops. Background technique: [0002] Since the appropriate amount of selenium has obvious benefits to the human body, selenium enrichment technology has been applied in the cultivation of food crops to increase the selenium content of the crops during the growth process. The selenium content of food crops using selenium-enriched technology should be ≥0.1mg / kg. [0003] The existing selenium-enriched cultivation techniques for crops can be summarized into two methods, one is to make selenium-enriched fertilizer through industrial methods, and then apply this fertilizer to crops. For example, the common Na 2 SeO 3 Or take Na 2 SeO 3 Foliar spray for selenium source. Because the selenium fertilizer product used in this method has high selenium content and is of high quality and easy to absorb, the selenium enrichment effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/00A01C21/00A01G7/00
CPCY02A40/20
Inventor 邢丹英雷昌云杨伟明金明珠李志新许凤英黄惠兰高剑华许少华郭丹丹张华张洋郭杰范邓鹏扎西
Owner YANGTZE UNIVERSITY
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