1. Seeds are treated coldly with celery at a low temperature. Summer planting is not directly seeded without low temperature germination, and it is difficult to emerge in one month. Therefore, seeds should be soaked for 12 hours before sowing, drained with gauze and moistened and wrapped in water wells or placed in a refrigerator (appropriately 10-10°C) for 8-10 days, then placed in high temperature environment Germination, but also direct sowing. 2. Use shady shade shade seedlings to shade the shade nets, bamboo curtains, waste films, etc., from the time of sowing until the end of August, always allow the seedlings to grow under the protection of sunshade, and to go to the shade in late August. . 3, increase the seedling distance after the seedlings Qi seedlings after the first to go seedlings, too thick seedlings. After the second half of the seedlings, the seedling spacing was 1-1.5 cm. The third time the seedlings were planted after 1 month, keeping the seedling spacing at 4--5 cm. Each time after the seedlings, a small water pressure root is poured. 4. Spraying herbicide seedbeds on weeds is the key to the success of seedlings. Spraying herbicides after sowing is an important measure to control weeds on the celery seedbed. The herbicide should be sprayed in two days after sowing. Herbicides suitable for use on seedbeds include herbicidal ethers, felsicone and the like. Apply 120-180 grams per acre bed, spraying 75 kg per acre evenly on the surface.
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