Seedling water culture method

The invention belongs to a hydroponic technology, and particularly relates to a seedling hydroponic method, which is characterized by comprising the following steps of: cutting roots of seedlings, carrying out water treatment, continuously culturing, and carrying out rooting again, so that the seedlings can be transferred or transplanted as hydroponic plant products. According to the scheme, due to the fact that the hydroponic seedlings are cultivated in the hydroponic solution all the time, produced roots are indefinite roots, if the hydroponic seedlings continue to grow, the phenomenon of atrophy is prone to occurring, and the service life of the plants is prolonged, and therefore after the hydroponic seedlings are cultivated for a period of time, root cutting and thirst water treatment are conducted on the hydroponic seedlings, thirst water genes of the plants are awakened, the plants are promoted to generate thirst water roots, and secondary produced roots are moisture roots; the water and nutrient absorp