Open field nursery
Difficult to germinate: In order to avoid the adverse effect of high temperature on the germination of celery seed, it can be soaked with 5ppm gibberellin for 12 hours, and then placed in a cold place to germinate, the temperature is maintained at 15 °C -20 °C.
Seedling management: Water is poured every morning or evening after emergence, and the amount of water is just poured into the surface. Rainy days or sooner or later remove curtains. In the rainy days, water is discharged, and after the rain, it is necessary to use well water for irrigation. The celery planted in late July, until mid-September, the seedlings have reached five or six leaves, to control the water and prevent leggy.
Greenhouse colonization
Planting time: Generally, it will be planted before the frost in late September. For a moment, you can't fall out and you can take out the celery sprout and leave it in the greenhouse to prevent it from freezing.
Colonization: Eradication of pests and weak seedlings, planting seedlings of the same size. Each row is planted with 5-6 rows, single plant, and the distance between the rows is eight centimeters.
Greenhouse Management
The temperature difference is increased in the early stage: on the basis of pouring enough water for planting, and then continuously filling the water once and twice, we will carefully maintain the soil, and increase the amount of air release in the early period, put the convective wind, put the night wind, and increase the temperature difference between day and night. Appropriate control of water, promote root development, petiole short, thick stems, accumulate more nutrients, for the inner growth into a thick petiole base.
Medium-term enhancement of fertilizer and water: When the inner leaves begin to grow vigorously, start top dressing and watering, and recover 40-50 grams of ammonium nitrate per square meter, chasing the water while chasing, and strengthen the ventilation after irrigation.
Late heat insulation: As the weather turns cold, the air does not exceed 25°C during the day and the heat is increased at night.
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