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Selenium-enriched wheat planting method

A wheat and selenium-enriched technology, applied in botany equipment and methods, plant cultivation, fertilizer mixtures, etc., can solve problems such as pollution, inaccurate quantification of selenium content, toxicity, etc., and achieve the effect of promoting absorption and accumulation and avoiding the risk of poisoning

Inactive Publication Date: 2015-09-30
山东省慧福康富硒生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many fortified foods and selenium-enriched foods targeting selenium on the market, but these products are not very accurate in the control and quantification of selenium content, which is not conducive to the realization of regular and quantitative selenium supplementation. There is an urgent demand for the development of functional foods
[0004] The selenium content of common wheat is generally between 10-30 μg / kg according to regional differences, and most of the selenium-enriched wheats that appear on the market are obtained by page spraying technology or the technology of directly soaking seeds with selenium-enriched solution (such as Chinese patent CN101897266A), most of its selenium content is between 100-400 μg / kg, and this method is very easy to cause poisonous effect to wheat, and inorganic selenium residue is large, has certain toxicity, and its purpose is mainly to make selenium-enriched noodles or as Raw materials are used to make selenium-enriched feed, etc. The maximum selenium content in the selenium-enriched wheat produced by this technology does not exceed 2000 μg / kg, which cannot make a major breakthrough compared with the current technology, and cannot achieve quantitative and safe selenium supplementation for the human body through limited intake
Chinese patent CN201410064425 is the selenium-enriched wheat produced by spreading 15-30 kilograms of nano-selenium plant nutrients per mu to the jointing stage of wheat, and performing appropriate field management; the selenium content and organic The conversion and utilization rate of selenium form is not high, which will inevitably cause the waste and pollution of selenium element, and increase the economic burden

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Carry out soil preparation, seed selection, seed treatment, fertilization, and sowing according to the normal planting steps of wheat. When the wheat reaches the jointing stage, apply 100 kg / mu of topdressing fertilizer in combination with a selenium-enriched nutrient solution with a mass fraction of 20%, wherein the selenium source is selected from sodium selenite, the physical adsorbent is selected from cellulose, and the selenium source catalyst is selected from formate dehydrogenase. The mass ratio of selenium source to physical adsorbent and catalyst is 1:1. The wheat was harvested in time after maturity, and the selenium content was detected to be 180 mg / kg after harvesting, and the selenium in the form of organic selenium (selenomethylselenocysteine) accounted for 83% of the total selenium content.

Embodiment 2

[0018] Carry out soil preparation, seed selection, seed treatment, fertilization, and sowing according to the normal planting steps of wheat. When the wheat reaches the jointing stage, apply 100kg / mu of topdressing fertilizer in combination with a selenium-enriched nutrient solution with a mass fraction of 20%, wherein the selenium source is sodium selenite, the physical adsorbent is cellulose, and the mass ratio of the selenium source to the physical adsorbent is 1:1. The wheat was harvested in time after maturity, and the selenium content was detected to be 165 mg / kg after harvesting, and the selenium in the form of organic selenium (selenomethylselenocysteine) accounted for 65% of the total selenium content.

Embodiment 3

[0020] Carry out soil preparation, seed selection, seed treatment, fertilization, and sowing according to the normal planting steps of wheat. When the wheat reaches the jointing stage, apply 120kg / mu of topdressing fertilizer in combination with a selenium-enriched nutrient solution with a mass fraction of 25%, wherein the selenium source is sodium selenite, the physical adsorbent is cellulose, and the mass ratio of the selenium source to the physical adsorbent is 1:1. The wheat was harvested in time after maturity, and the selenium content was detected to be 190 mg / kg after harvesting, and the selenium in the form of organic selenium (selenomethylselenocysteine) accounted for 89% of the total selenium content.

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PUM

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Abstract

Provided is a method for cultivating selenium-enriched wheat plant materials. The selenium content in selenium-enriched garlic plant materials is 1 mg / kg to 1000 mg / kg, and selenium which exists in an organic selenium (methyl selenocysteine) form accounts for 85% of the total selenium content. The method is characterized by comprising the steps that selenium-enriched nutrient solution with a selenium source is applied at the elongation stage of wheat, and meanwhile, the effective quantity of selenium source adsorbents or catalysts for physical adsorption of the selenium source are added. According to the method, stable and effective selenium source supply is provided for wheat to promote absorption and accumulation of selenium in wheat, the selenium element is effectively transformed to the organic selenium form from the inorganic selenium form, and the risk that excessive selenium poisons the wheat growth environment is avoided. The method solves the problems that in the prior art, selenium durability in plant materials is short, and selenium is prone to being reduced in the environment and is low in utilization rate.

Description

technical field [0001] The invention relates to a planting method of selenium-enriched wheat, which belongs to the field of agricultural production. Background technique [0002] Wheat (wheat) is a kind of gramineous plant widely planted all over the world. Wheat is the food crop with the second total output in the world, second only to corn. Wheat is rich in starch, protein, fat, minerals, calcium, iron, thiamine, riboflavin, niacin and vitamin A, etc. It is one of the common foods for humans and animals. [0003] Selenium is one of the essential trace elements for the human body. Insufficient or excessive intake can cause diseases. In the 1970s in my country, Keshan disease was found to be related to selenium deficiency. With the deepening of selenium research, people realized that many diseases such as cancer, cardiovascular and cerebrovascular diseases, diabetes, human immunity decline, cadmium poisoning and AIDS are all related. It is related to selenium deficiency. Se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00C05G3/00
CPCA01G22/00C05D9/02C05G3/00
Inventor 李守敏欧阳德民李孝义李玉芝王玉敏孔秋菊欧阳修可宋吉明
Owner 山东省慧福康富硒生物科技有限公司
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