Cultivation method for selenium-rich litchi fruit trees

Abstract

The invention discloses a cultivation method for selenium-rich litchi fruit trees. The method comprises the following steps of mixing 0.01 to 0.08 part by weight of selenium, 1.5 to 3.0 parts by weight of nitrogen, 1.6 to 3.2 parts by weight of potassium, 1.6 to 4.1 parts by weight of phosphorus, 0.1 to 0.3 part by weight of copper and 1,060 parts by weight of water to prepare a nutrient solution, spraying the nutrient solution to roots once a week before and after the litchi fruit trees bloom respectively, and spraying the nutrient solution to leaves for three times at a spraying interval of 12 days in a fruit expanding stage, wherein matured litchis are selenium-rich. According to the method, inorganic selenium is absorbed and converted into organic selenium by the litchis, so that toxicity is removed, and better disease suppression, yield increasing and litchi quality improvement effects of crops are achieved; the selenium content of produced dried litchi fruits reaches 4.1mg / kg, and the dried litchi fruits are stable in content and nutrient-rich, and become popular health food.

Description

technical field [0001] The invention relates to a method for cultivating selenium-enriched litchi fruit trees. Background technique [0002] Selenium-enriched food has been recognized by people and gradually popularized to eat and bring people health, away from "three high diseases". The development of selenium-enriched organic health-care agricultural products is the only way to increase the value of modern agriculture. According to public information reports: Selenium is called "the king of health care" by scientists. It works synergistically with vitamin E in the body to protect cell membranes and prevent the oxidation of unsaturated fatty acids. Therefore, selenium has an antioxidant effect. Selenium also enhances immunity: organic selenium can remove free radicals in the body, eliminate toxins in the body, resist oxidation, effectively inhibit the production of lipid peroxides, prevent blood clots, remove cholesterol, and enhance human immune function. Prevention and ...

AI Technical Summary

Problems solved by technology

[0005] At present, the content of selenium-enriched agricultural by-products on the market is unstable and cannot produce qualified products according to national standards. The development of selenium-enriched agricultural products is a new model for modern agricultural development to create value for farmers to get rich

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