1. Sowing and germination: Before seeding, put the seeds in the sun for 2-3 days, then disinfect them with warm water or chemicals. Soak the seeds in warm water, then soak them in clean water for 15 minutes. Soak the seeds with water for 2 hours, then soak them with 75% chlorothalonil for 800 minutes, and rinse them with water. After the seeds are sterilized, the germination is carried out at 25-30 ° C, and the seeds are sown when 70% of the seeds are white. 2, seedbed selection: seedbed should choose sunny to shelter from the wind, fertile and loose, 2-3 years without planting the tomato field of the solanaceous vegetables, leveling and fine before sowing, and then disinfect the soil with carbendazim or diclosan, before the broadcast 10 Apply basal fertilizer for -15 days. 3, cultivating strong seedlings : generally planted in mid-December, the amount of acres used 50 grams. Before sowing, the seedling bed should be poured with the bottom water, the seeds should be spread evenly on the seedbed and lightly compacted with a flat plate to fully bond the seeds with the soil, then sprinkle 5% of the thin fertilizer water, and then cover the seedling bed with 0.5-1 cm thick. Nutrient soil, then cover the membrane or take a small arch shed to keep warm. The mulch film was removed when 30% of the seeds emerged. After 1-5 seedlings, the seedlings were 1-2 times after the seedlings and before the seedlings were transplanted, and the seedlings should be ventilated. The seedling management is mainly to control the length of the seedlings and avoid the bed soil being too wet. The nutrient soil is not white and does not water. It should be poured and poured. Generally, it is watered in the afternoon on a sunny day. According to the growth of the seedling, urea or compound fertilizer can be combined with watering. 4, with soil transplantation: seedlings 2-3 leaves when the cold tail warm head with the drug with soil and fake planting, while planting water while planting, 3-4 days before the planting, appropriate refining, strengthen ventilation, temperature 19-25 ° C, night temperature 13-15 ° C. Cover the small arch shed after the fake planting, keep warm for 4-5 days, and keep the temperature in the shed at 28 °C. After the fake planting, spray 75% chlorothalonil 800 times solution or 70% mancozeb 800 times solution to prevent disease. After the seedlings, the temperature in the shed should not be higher than 25 °C, and the seedlings should be refined about one week before the planting. The night temperature is 13-15 °C, the water is controlled, and the ventilation is gradually increased. The seedlings in the colonization period generally have 9-12 true leaves and begin to branch, with several flower buds, the plants are robust, the leaves are thick, the leaves are dark green, the roots are developed, no pests and diseases, not high feet. ZHANGJIAGANG DINSHENGLIN TRADING CO.,LTD , https://www.dslhouse.com