Production method for organic selenium-rich iron-rich nutrition enriched rice

Abstract

The invention relates to a production method for selenium-rich iron-rich rice, in particular to a production method for preparing the selenium-rich iron-rich rice by applying selenium-rich iron-rich organic inorganic special fertilizer. The production method for the organic selenium-rich iron-rich nutrition enriched rice sequentially comprises the following steps of: selecting seeds; raising rice seedlings; plowing the field; transplanting the rice seedlings; performing field management; harvesting; and processing, wherein the field management comprises fertilization; the applied fertilizer is selenium-rich iron-rich organic inorganic fertilizer; the fertilizing times are 1 to 4; and the selenium-rich iron-rich organic inorganic fertilizer comprises selenite, ferrous salt, nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, polyaspartic acid or salt thereof, composted organic fertilizer and silicon fertilizer. By the production method, the conventional general method for producing the selenium-rich iron-rich rice mainly by spraying a selenium/iron-containing solution or selenium/iron-containing foliar fertilizer in flowering stage and the seed mature stage of the rice or adding the selenium/iron-containing solution in the rice processing process is changed and unsafe factors in preparation of the selenium/iron-rich rice are avoided. The production method is economic, efficient and pollution-free.

Description

technical field [0001] The invention relates to a production method of selenium-rich iron rice, in particular to a production method for preparing selenium-rich iron rice by applying selenium-rich iron organic and inorganic fertilizers in the field. Background technique [0002] Selenium is an essential trace element for humans and animals. It is an antioxidant that can relieve aging and eliminate a variety of harmful free radicals. Its synergistic effect with vitamin E is called the "golden partner" of anti-oxidation. As the only specific micronutrient (selenocysteine, the 21st amino acid) in the human genome, its importance has been demonstrated (Rayman, M P. 2002, The argument for increasing selenium intake. Proceeding of the Nutrition Society, 61: 203-215). Selenium deficiency will lead to the decline of human immunity, which will lead to the occurrence of Keshan disease and Kaschin-Beck disease. Severe selenium deficiency will lead to more than 40 kinds of diseases, su...

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Problems solved by technology

Second, the Chinese dietary structure results in limited selenium intake

More importantly, in the 4th to 11th examples in which the above-mentioned fertilizers were applied to make the rice produced meet the national standard for selenium-enriched rice, the amount of selenium in the fertilizers used throughout the growing season of rice reached 8000~ 54545 mg / mu, the amount of selenium is still relatively large, high concentration of selenium fertilizer increases the cost of fertilizer, and because selenium is toxic, excessive selenium pollutes the runoff water and soil in the field, and is a great waste

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