Soilless cultivation of organic vegetables is a kind of cultivation technology that mixes nutrient solution with clear water to irrigate the roots of plants. Its nutrient acquisition is mainly organic solid fertilizer, which has the characteristics of low cost and high benefit in the implementation process. The popularization and application of this technology is of great significance to promote the sustainable development of agriculture in China.

It is an indispensable component in traditional soilless culture technology, but after a period of use, the nutrient solution will cause certain pollution with the change of pH value and concentration. With the continuous development of science and technology, the amount of waste liquid discharged by the popular soilless culture technology is relatively small, and this waste liquid is harmless to the environment.

Key points of organic ecotype soilless culture

1, selection of dielectric materials

With the continuous development of soilless culture technology, there are mainly two kinds of organic vegetable cultivation technologies: organic material culture medium and inorganic material culture medium. The materials used in the organic culture medium are mainly crop straws, plant fruits, rotten trunks and feces produced in the process of livestock and poultry breeding, which are characterized by wide sources and low prices.

2. Treatment of culture medium

First of all, according to the requirements, the organic substances in the culture medium are disinfected to remove weed seeds, so as to fundamentally avoid the spread of various pests and diseases in the culture medium. Secondly, in the process of substrate treatment, organic matter must be degraded to meet the requirements of inorganic absorption in soilless vegetable cultivation.