Water culture management method for purple green vegetables

The invention discloses a water culture management method for purple green vegetables. The water culture management method comprises the steps of soil culture seedling culture, transplanting, environment control and management, and management of water culture liquid, air environment factors and illumination. Establishing a yield prediction model of the purple green vegetables under the cultivation conditions; and adjusting subsequent purple green vegetable cultivation condition parameters by using the yield prediction model. The hydroponic technical method is simple and easy to manage, growth of root systems, stems and leaves of crops is remarkably improved after purple green vegetables are planted, the anthocyanin content of leaves is increased, and the yield of the purple green vegetables is increased. The yield prediction model provided by the invention can monitor and predict the yield condition according to growth, is especially suitable for factory purple green vegetable cultivation, and also has a cert