Planting technique of celery in greenhouse

The choice of land should be flat and fine, and the land should be renovated, fertilized and weeded before planting. The span of the shed is 8-12m and the length of the greenhouse is 60-120m. Three earth walls and three rows of columns are selected. Bamboo or steel frames are best used on the pillars. Soaking seeds 7-8 days before sowing to accelerate germination. Wet sowing method is often used, and the soil cover should be thin and uniform after sowing. Appropriate watering, timely prevention and control of diseases and insect pests.

1. Soil preparation and fertilization

The choice of land should be flat and fine, and the land should be renovated, fertilized and weeded before planting. As the temperature in the greenhouse is different from that of the outside world, appropriate amount of fertilizer should be applied to avoid soil deterioration caused by excessive fertilization. Appropriately increase the application of phosphorus and potassium fertilizer and reduce the use of nitrogen fertilizer.

2. Build a greenhouse

In general, the span of the shed is 8-12m, the length of the greenhouse is 60-120m, three earth walls and three rows of columns, it is best to use bamboo or steel frame on the columns. A drip-free film is used on the surface of the greenhouse to increase the temperature in the greenhouse.

3. Sowing seeds

Soaking seeds 7-8 days before sowing to accelerate germination. Soak the seeds in cold water 12: 14 ℃ for 12-24 hours, rinse the seeds, let the air cool for a while, wait for the seed surface to dry, wrap it in a wet towel, put it in a cool place (15-20 ℃) and let it sprout. The seeds can be sowed after the seeds are sprouted, and the wet sowing method is mostly used, that is, the bottom water is poured first, and then mixed with sand. The soil cover should be thin and uniform after sowing.

4. Management

The seedlings should be watered properly, the seedling beds should be kept moist, and the seedlings should be planted at a time of 2 leaves. After the seedlings are alive, they should be ploughed in the middle. When the seedling grows to 5-7 pieces and the seedling height is 15~18cm, it can be planted. After planting, it is necessary to strengthen fertilizer and water management, timely control of diseases and insect pests, and ensure their normal growth and development.