Inorganic selenium-rich black tomato hydroponic method

Abstract

The invention discloses a hydroponic method for inorganic selenium-enriched black tomatoes, which comprises soaking black tomato seeds in an aqueous solution of 0.001-0.02 mg / L sodium selenite and combining selenium nutrient solution with leaves during the growth process of black tomatoes method. Planting black tomato according to the method of the invention can provide effective selenium source to black tomato seeds, and at the same time promote black tomato to absorb and accumulate selenium element, so that obtained black tomato fruit has high selenium content.

Description

technical field [0001] The invention belongs to the field of crop planting, in particular to a hydroponic method for inorganic selenium-enriched black tomatoes. Background technique [0002] Black tomato, a plant of the Solanaceae tomato genus, is native to South America. It is named for its black-red skin and fruit. It is a treasure of the tomato family. The fruit of black tomato is used for both medicine and food. It has a strong fruit aroma, high nutritional value, and a sweet and sour taste, especially suitable for fresh food. The fruit of black tomato contains 13 kinds of vitamins and 17 kinds of minerals. The lycopene, vitamin C and antioxidants in the fruit are 10 times higher than those of red tomatoes. The nutritional structure is more reasonable and can be easily absorbed by the human body. At the same time, black tomatoes contain a lot of anthocyanins, which can produce strong biological effects in the human body-especially anti-cancer. It has been proved by med...

AI Technical Summary

Problems solved by technology

Using a single foliar spraying of selenium fertilizer is likely to cause selenium pollution in the soil, but it is difficult to control the selenium concentration in the soil by using organic selenium combined with sodium selenite, and excessive selenium can easily cause selenium poisoning in plants