Nursing substrate for production of organic selenium-rich strawberries

Abstract

The invention discloses a nursing substrate for production of organic selenium-rich strawberries. The nursing substrate is characterized in that a selenium-containing flax cake is used as a selenium source to prepare the selenium-rich nursing substrate, and the substrate is composed of, by weight, 30-50 parts of the selenium-containing flax cake, 20-40 parts of composted cow dung, 10-30s part of rice husk and 5-10 parts of river sand. The nursing substrate for production of the organic selenium-rich strawberries is simple and convenient in operation, and labor intensity and labor cost of strawberry production are lowered; and sufficient selenium sources are constantly provided for the strawberries from starting breeding strawberry plantlets, so that the selenium sources can be absorbed from soil by the strawberries during the whole growth period and converted into organic selenium through photosynthesis, and proportion of the organic selenium is higher and stable.

Description

[0001] technical field [0002] The invention belongs to the technical field of strawberry cultivation, in particular to a seedling-raising substrate for producing organic selenium-enriched strawberries. 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 de...

AI Technical Summary

Problems solved by technology

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