Planting method of selenium-enriched organic tomatoes

Abstract

The invention provides a planting method of selenium-enriched organic tomatoes. The planting method of the selenium-enriched organic tomatoes comprises the following steps of (1), adopting a selenium-enriched seedling raising substrate during the seedling raising of tomatoes, wherein the sowing density is that 150 to 250 seedlings are raised per square meter; covering the seedlings with the seedling raising substrate at a thickness of 0.3 to 0.8 centimeters; (2), before the seedlings of the tomatoes are transplanted, first applying special selenium-enriched organic and inorganic fertilizers as base fertilizers, wherein an application amount is 100 to 150 kilograms per mu; (3), applying the special selenium-enriched organic and inorganic fertilizers as additional fertilizers during the blooming and fruit bearing periods of plants of the tomatoes, wherein an application amount is 100 to 120 kilograms per mu. After the treatment of the above steps, the selenium-enriched organic tomatoes are obtained after the tomatoes mature. According to the planting method of the selenium-enriched organic tomatoes, based on the growth characteristics of the tomatoes, the nutrient proportion of NPK (Nitrogen, Phosphorus and Potassium) and the content of a selenium fertilizer are reasonably adjusted; suitable and balanced nutrients of the NPK are provided for a crop; a well-rotten organic fertilizer and the like are added to increase the stress resistance of the crop, improve photosynthesis, stimulate root development, and promote the growth and the conversion and the absorption, for selenium, of the crop, so as to achieve the purpose of saving the fertilizers, decreasing cost and increasing the quality of the tomatoes.

Description

technical field [0001] The invention relates to the technical field of tomato planting methods, in particular to a planting method of selenium-enriched organic tomatoes. Background technique [0002] Selenium is an essential trace element for the human body. It is a multifunctional life nutrient element. 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 deficiency will lea...

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