Cultivation method of organic selenium-rich tomato

Abstract

The invention discloses a cultivation method of organic selenium-rich tomato. The method is characterized in that selenium-rich seedling substrate and selenium-rich organic and inorganic special fertilizers are respectively produced from a selenium source, namely selenium-bearing sesame cakes; the selenium-rich seedling substrate is used for raising tomato seedlings; the selenium-rich organic and inorganic special fertilizers are applied as base fertilizer before transplanting of the tomato; and the selenium-rich organic and inorganic special fertilizers are applied as topdressing after flowering and fruit setting. The method changes the conventional way of mainly spraying selenium-containing solution or selenium-containing leaf fertilizer in the tomato flowering and fruiting phase in current selenium-rich tomato production, avoids insecurity factors in the selenium-rich tomato production, is economical, efficient and pollution-free, and is of positive significance to improving people's selenium level and controlling diseases.

Description

[0001] technical field [0002] The invention relates to the technical field of tomato cultivation, in particular to a method for cultivating organic selenium-enriched tomatoes. 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 deficie...

AI Technical Summary

Problems solved by technology

At present, in order to produce selenium-enriched tomatoes, 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