After the planting of celery, a new high-fat film insulation was applied in a timely manner to increase the survival rate. In the event of a storm sunny day noon shaded 2-3 days, watering 2-3 times after planting. After moderate seedlings, appropriate seedlings are planted in deep tillage. When the minimum temperature dropped to 5°C, attention should be paid to the insulation at night, and the air should be cooled and humidified during the day to prevent leggy and disease. The daytime temperature should be maintained at 20°C-25°C and 10°C at night. In mid-November, straw curtain insulation should be stamped. Every day should be released for more than 2 hours. Cloudy weather should also be taken into account to dampen the air, and the air release time should be shortened. When the plant grows to 25-30 cm in height, it can be fertilized once, apply urea, and then watered. After the plant enters a vigorous growth period, it must not be deprived of water. Water is poured in about 7-10 days, and the water is topdressed once. Watering is usually performed on a sunny morning. And spraying the plants with strong stems and stalks makes the seedlings flourish, the stems are thick, and the leaves are hypertrophic. At the same time, it is necessary to warm up the greenhouse seals so that the ground temperature can quickly rise and release the wind at noon. During the vigorous growth period, fertilizers should be applied in a timely manner, and thermal insulation and organic fertilizers should be applied to ensure the supply of trace elements. In the middle and late stages of growth, potassium dihydrogen phosphate and plant electronic fertilizers can be sprayed. And pay attention to the prevention of pests and diseases, and timely use of targeted drugs for effective prevention and control.

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