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Method for selenium-enriching cultivation by using selenium powdered ore

A technology of selenium ore powder and selenium enrichment, which is applied in fertilization methods, gardening 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: 2009-12-30
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]Embodiment 1, planting 66.7m 2 (0.1 mu) of soybeans, the kind is Edou No. 6, get selenium content is 104mg / kg, fineness is 5.0kg of ore powder of 0.25~0.5mm, with NaOH solution, above-mentioned selenium ore powder is processed into PH8.5 , and then use the treated selenium ore powder as a base fertilizer, and apply it to the dominant root zone at a distance of about 5cm from soybean seeds in each hole. Soybean kernels were tested for selenium content after harvest. The results showed that the selenium content of soybean grains was 0.150mg / kg, reaching the standard above 0.1mg / kg.

Embodiment 2

[0024] Embodiment 2, planting 66.7m 2 (0.1 mu) of wheat in the land, the kind is Een No. 4, gets selenium content and is 392mg / kg, fineness is 0.5~1mm mineral powder 7.5kg, with KOH solution, above-mentioned selenium mineral powder is processed into PH9.0, Then use the treated selenium ore powder as base fertilizer, apply it to the sowing row of wheat, and then sow after covering with soil. The selenium content of wheat grains was tested after harvest. The results showed that the selenium content of wheat grains was 0.1846mg / kg, reaching the standard above 0.1mg / kg.

Embodiment 3

[0025] Embodiment 3, planting 66.7m 2 (0.1 mu) of rapeseed, the variety is Zhongyouza No. 2, get 10kg of mineral powder with selenium content of 104mg / kg and fineness of 1 to 2mm, and use Ca(OH) 2 The above-mentioned selenium ore powder is processed into a pH8.5 solution, and then the processed selenium ore powder is used as a base fertilizer, applied to the rapeseed transplanting row within a radius of 15 cm from the transplanted seedlings, and then transplanted after covering with soil. Selenium content of rapeseed seeds was detected after harvest. The results showed that the selenium content of rape seed was 0.1350mg / kg, reaching the standard above 0.1mg / kg.

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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 cultivation, in particular to cultivation methods for increasing the nutritional content of crops used as food. Background technique: [0002] Since an appropriate amount of selenium has obvious benefits to the human body, selenium-enriching technology has been applied in the cultivation of crops as food, so that the selenium content of the crops can be increased during the growth process. The selenium content of food crops applying 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 Na 2 SeO 3 Foliar spray as a source of selenium. Because the selenium fertilizer product used in the method has high selenium content and is high in quality and easy t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00C05F9/00A01G7/00
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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