Selenium-enriched wheat planting method

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...

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