Soilless culture method improving content of organic selenium of okra

Abstract

The invention relates to a soilless culture method improving the content of organic selenium of okra. The method includes the operation steps that firstly, soilless culture media containing nano-selenium are prepared, then strong okra seedlings are selected, the roots of the okra seedlings are sterilized and then transplanted to customized grooves in a greenhouse, the customized grooves are filled with the soilless culture media containing the nano-selenium, pruning, disaster prevention, flower promoting and fruit retention and other management are carried out on the okra through a conventional method, fruits are picked after being mature, and the okra high in organic selenium content is obtained. According to the method, the soilless culture media containing the nano-selenium are used for culturing the okra, the yield of the okra and the content of the organic selenium in the fruits can be remarkably increased, economical benefits are good, nutritional value and health-care value of the okra are high, use of fertilizers and pesticides can be reduced, cost is low, the okra is environmentally friendly and free of public hazards, and the method is suitable for large-scale popularization.

Description

technical field

[0001] The invention relates to a vegetable soilless cultivation technique, in particular to a soilless cultivation method for increasing the organic selenium content of okra. Background technique

[0002] my country is facing severe challenges from population growth and land reduction. The population accounts for 1 / 4 of the world's total population, but its arable land area is only 1 / 7 of the world's total arable land area. According to statistics in 2000, the national per capita arable land is only 0.01 hm2, soilless cultivation can provide several times or even more than ten times the quantity of products than ordinary soil cultivation, and can use sandy beaches, saline-alkali and other barren lands to produce agricultural products, laying a solid foundation for the food safety guarantee system. my country is a country with very poor water quality resources, and is listed as one of the 13 water-poor countries in the world. The per capita water resources in ...