Daycare substrate arrangement. The search terms technology for each of these wet nurseries is always to promote the use of environmentally friendly, warm nursery substrates such as carbonized husks or puffed perlite as the main component. Slightly alkaline pH levels used by themselves are not very conducive to the growth of tobacco seedlings. Deployment and utilization of the original matrix involves setting up a slightly acidic pH with loess, with a total ratio of around 7/3 or 6/4 depending on the matrix and loess modulation to create a pH suitable for nursery seed growth. Plant nutrient management involves a comprehensive promotion of nutrient elements in moist playroom support. Investigations should determine an appropriate proportion of seedling nutritive solutions. Nutrient solutions generally progress from pre-less to mid-term multifunctional usage, with late-stage management focusing on utilizing scientific and rational vitamin management without tobacco herbs growing due to different models within the tank. Daycare ventilation management involves addressing contradictions and specific issues related to oxygen content in the breeding shed and greenhouse temperature in the evening. Therefore, to grasp plentiful and private ventilation opportunities, open the entrance to expand ventilation in the playroom shed. Easily, on a perfect sunny day, it's appropriate to extend the duration of closing windows to increase airflow time; in cold conditions, shut doors to reduce ventilation and avoid chilly winds that may loosen bush seedlings, resulting in frost damage to tobacco baby plants. Before evening closes, ensure nighttime temperatures remain suitably warm.