Establishing the physiological parameters for the growth of vegetable leafy vegetable seedlings: This year, we will establish the physiological parameters of the annual seedling growth of headed cabbage and sweet pepper, and select the most commonly cultivated chinese cabbage (No.4 Baobai variety) and sweet pepper (Mingxing variety). The test investigation of plug seedling cultivation for 5 times of the chinese cabbage and 3 times for sweet pepper, has been completed in the environmental control greenhouse and the plastic net structure. At the same time, the environmental conditions of the nursery greenhouse are recorded, and to trace the effect of greenhouse conditions on the growth of vegetable seedlings. Complete the investigation and data recording of plug seedling cultivation and physiological parameters of two major vegetables of cabbage and cauliflower each for two season (spring and summer), conduct data collection for the verification of the seedling growth prediction model, and predict the appropriate seedling and shipping dates. And it will serve as the basis and correction for the demonstration of the production process management test of the demonstration nursery in the next year.