Selenium is one of the essential trace elements for human beings and animals. In recent twenty years, with the deepening of the research on trace element selenium, people have gradually realized the importance of selenium to life. Under the influence of selenium, selenium-enriched healthy nutrition products developed by colleges and universities are constantly going to the market, supplementing selenium for the whole people and contributing to the new life of a harmonious and healthy society.
At present, the reasons for the slow development of selenium-enriched health nutrition production are as follows: first, the production cost is too high for the general public to consume; Second, the low-cost selenium-enriched agricultural by-products and high-tech selenium-enriched agricultural science and technology content, because the government and news media do not publicize enough, people's understanding of selenium health care is not universal; In the whole country, selenium-enriched agricultural and sideline products have not yet successfully formed a one-stop business model of production, supply and sales. Thirdly, because the existing selenium-enriched technology mainly relies on spraying sodium selenite (a toxic substance) solution on the surface of crops, it is transformed into organic selenium needed by people and livestock through crop absorption. A large number of production data prove that different crops have different antagonistic effects on sodium selenite, so the selenium content of agricultural and sideline products produced is very low, and the production process is difficult to control. Therefore, in 20 10, the National Bureau of Standards revised the original standard of selenium-enriched rice from 0. 1-0.3 ㎎/㎏ to 0.04-0.3 ㎎. The reason is that most selenium-enriched rice in the market can't meet the standard. At present, selenium-enriched agricultural and sideline products listed in the market, such as selenium-enriched rice, selenium-enriched tea, selenium-enriched eggs, selenium-enriched apples, selenium-enriched peanuts, selenium-enriched oranges and so on. None of them have registered selenium content, which is actually a sign of lack of confidence in product quality and loss of market integrity to a certain extent. In fact, sodium selenite solution spraying technology has little or no impact on many species, such as rape, wheat, citrus, corn, tea and so on.
In recent years, the researchers of Changsha Fushan Agricultural Science and Technology Co., Ltd. have developed a series of special fertilizers containing humic acid and selenium-enriched plant nutrients according to the needs of various plant physiological characteristics in production experiments, which has solved the bottleneck problem of selenium-enriched crops well and can accurately control the selenium content within the national standard; This series of special fertilizer products have the characteristics of improving soil and degrading heavy metals, making the hardened soil loose, and the effect is also obvious in the production experiments of tobacco, grapes and camellia oleifera.
Since 2004, our scientific experiments have got rid of the haze of relying on sodium selenite [na2se 03.5 H2O] solution spraying technology. Created a new era of selenium-enriched technology: potassium selenite phosphate [K3SEP3O 10. XH2O。 X = 2-4] ZL200610136924x. In the production experiment of selenium-enriched rice, we can effectively and accurately control the biological selenium content of selenium-enriched rice at 0. 1-6.5 mg. From 0. 1-0.3mg/kg selenium-enriched food health care to ≧6.5mg organic selenium products used in special fields, it has opened up a large product field of deep processing of selenium-enriched foods, such as: expanding selenium-enriched health foods for children, which can well solve the problem of excessive heavy metals for children in China; The wine brewed with selenium-enriched rice is particularly mellow and lasting, and it is very likely to create new products of wine culture. There is also a selenium-enriched wine with an organic selenium content of about 0.4mg/kg, which is also a healthy drink and food loved by middle-aged and elderly people. There are also selenium-enriched Xiang Lian, selenium-enriched vegetable oil, selenium-enriched tea oil, and different grades of selenium-enriched tea with organic selenium content of 0.4-3.5mg/kg, which can refresh and improve intelligence.
Looking forward to the future, we firmly believe that the "series of special fertilizers containing humic acid and selenium-enriched plant nutrients" developed by Changsha Fushan Agricultural Science and Technology Co., Ltd. with independent intellectual property rights can shoulder the historical fate of benefiting the country and the people, so that this technology can better write a new chapter for the national selenium supplement project and make due contributions to efficient agriculture.
Li Fuchu
2065 1 4th of April 438+02