Method for culturing organic selenium-enriched watermelons

Abstract

The invention discloses a method for culturing organic selenium-enriched watermelons. The method is characterized in that flax cakes containing selenium are served as a selenium source for preparing a selenium-enriched growing medium and special selenium-enriched organic and inorganic fertilizers, wherein the selenium-enriched growing medium is used at the watermelon breeding stage, and the special selenium-enriched organic and inorganic fertilizers are used as base fertilizers before the watermelon transplantation, and used as topdressings during the fruit expanding period. According to the invention, the common method that the selenium-containing solution or the selenium-containing foliage fertilizer is mainly sprayed during the fruit expanding period in the current selenium-enriched watermelon production is changed, the unsafe factors existing in the production of the selenium-enriched watermelons are avoided, and the method is economical, effective and pollution-free, and has positive significances in improving the selenium level of crowds and preventing and curing diseases.

Description

[0001] technical field [0002] The invention relates to the technical field of watermelon cultivation, in particular to a method for cultivating organic selenium-enriched watermelon. Background technique [0003] Selenium is an essential trace element for the human body. It is a multifunctional nutrient element for life. It has anti-oxidation, regulates the body's metabolism, improves the body's immunity and disease resistance, improves the reproductive function, resists tumors, and prevents endemic diseases (such as Keshan disease , Kashin-Beck disease), delaying aging, antagonizing toxic elements and other functions. Studies in recent years have shown that selenium is closely related to the structure and function of the cardiovascular system and the occurrence of diseases. Selenium enzyme-glutathione peroxidase has the functions of reducing peroxide, resisting lipid peroxidation and protecting cell membrane. The heart is very sensitive to selenium deficiency. Selenium d...

AI Technical Summary

Problems solved by technology

At present, in order to produce selenium-enriched watermelons, the method of foliar spraying inorganic selenium is adopted, and its disadvantages are very obvious. First, foliar spraying requires a relatively high content of selenium fertilizer, and high-concentration selenium fertilizer increases the cost of fertilizer use; secondly, because the leaves Surface spraying, selenium fertilizer is easy to sprinkle in the field, so just causes very big waste to field runoff water and soil; Again, often causes the residual amount of inorganic selenium to be large, and inorganic selenium has obvious poisonous effect to body, safety Low, cannot be used in the production of organic selenium-enriched agricultural products