Seeding timing and management of seedling hole trays

Time arrangement for seedling hole tray: 1. Water management: Once every 2 days in spring, quick watering is allowed, and the water spray pipe in the 100 meter shed repeats for 20 minutes once. The temperature in autumn can be high once a day, keeping the soil moist and cooling down. 2. The fertilizer supplement adopts the compound fertilizer (nitrogen, phosphorus, and potassium ratio is 2:1:2) produced by the American Life Support Company, which is sprayed once every 10 days with a weight of 1.5 kilograms each time, a total of 3 times.

Management of seedling hole plates: 1. Temperature management: The temperature management of eggplant and fruit vegetables is basically the same. Generally, before sprouting, the temperature ranges from 28 ℃ to 30 ℃ during the day and from 20 ℃ to 25 ℃ at night. After 60% of sprouting, the temperature slightly drops, from 24 ℃ to 28 ℃ during the day and from 17 ℃ to 18 ℃ at night, and cannot be lower than 12 ℃. If the temperature is too low, the emergence speed is affected, and small seedlings are prone to root rot and sudden fall. Temperature deviation from June to August requires shading and cooling. Use a 70% shading net from 11pm to 1-2pm every day. 2. To prevent diseases and pests during spring seedling cultivation and prevent sudden death, use imported Pulik 400-600 times solution, spray once every 7 days, and continuously spray 2-3 times. In autumn, it is necessary to prevent viral diseases. Use Zhibing Ling or Virus A, spray once every 7 days, 2-3 times in a row. To prevent and control whitefly and leaf miner, spray avermectin once every 4-5 days and continuously 6-7 times.