I. Seedling management After celery seeds are sown, we must cover the straw, shade nets, and insect nets, while keeping the straw curtains moist. After the seedlings emerge, we will gradually withdraw. We must pour the ground water to keep the bed moist, when the seedlings are moist. After the first true leaf is unfolded, the seedlings begin to divide. When the seedlings have 2-3 true leaves, 5 kg of urea are applied per mu, or 0.2% urea solution is sprayed on the foliage. Keep 3-5 cm and remove weeds.
Second, soil preparation before planting combined with deep plowing, re-apply organic fertilizer. Each mu of rot cooked farmyard fertilizer 5000 kg, 40-50 kg compound fertilizer, superphosphate 50 kg.
Third, the appropriate colonization When the celery seedlings grow to five leaves and one heart when the six-leaf colonization.
Fourth, the custom density of planting 22,000 ~ 25,000 per acre is appropriate.
V. Planting methods 3 to 5 days before planting, the watering of the seedbed is stopped. According to the density requirements to open the ditch planting, a hole per plant, soil to cover the short stem to reveal the heart and leaves is appropriate, edge planting edge ditch, then watering.
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