Celery is an alias of western celery, celery, etc. Its petiole is soft, crisp, sweet and rich in vitamins and mineral salts. In recent years, the cultivated area in South China has been increasing. How to achieve high yield and quality? Specific cultivation techniques are as follows:
1. Cultivation season. Celery prefers a cool and mild climate. It is not tolerant to high temperatures, and the optimum temperature for growth is 15°C-25°C. High temperature growth above 26°C is impeded, quality deteriorates, and diseases are prone to occur.
2. Sowing seedlings. Most of the celery is transplanted with seedlings and seedlings. The seedbed should be selected for shading, convenient drainage and irrigation, fertile soil and loose sandy loam soil. Before sowing, sow deep tillage soil; apply basal fertilizer, fully meticulously make rakes, and pour enough bottom water. Early sowing should be performed with low-temperature germination. After October, sowing does not require germination. After the seedlings are lifted, the coverings are peeled off. During the high temperature season, it can be put on the surface to facilitate cooling and moisturizing, preventing direct sunlight and direct erosion of rainwater. Pay attention to watering and keep the soil moist.
3. Transplant seedling colonization. When the seedlings grow to 5-6 true leaves, the seedlings can be planted as high as 10 cm. Planting should be selected ventilation, sunny, loose and fertile soil plots, before planting deep-drying whitening, full base fertilizer, the general rotten organic fertilizer applied per seed 3000-4000 kg, 40-50 kg of superphosphate, potassium sulfate 7-10 Kilograms, ammonium sulfate 30-40 kg or compound fertilizer 75 kg with a certain amount of phosphorus and potassium fertilizer, apply enough base fertilizer to turn over the hoe, mix the fertilizer and the soil thoroughly, flatten the planting, and spread the width 1.5-1.7 meters. .
4. Fertilizer management. Because celery is tall and stout, the yield is high, the growth period is long, and the amount of fertilizer is large. Sufficient fertilizer and water supply is the guarantee of high quality and high yield. After 7-10 days of colonization, a thin layer of about 10% faecal water or 5 kg of urea per acre can be used for leaching to promote a good root system and restore growth. After the use of urea 10 kg or 30% -40% of human urine water can be applied 1-2 times per acre to promote heart growth. The fastest growing time after 50-70 days after planting is the key period for the production. It should be topdressed with a certain amount of phosphorus and potassium fertilizer to fully meet the needs of celery growth for phosphorus and potash fertilizer. 15 kg of urea can be used per mu. 10 kg compound fertilizer application, after the use of urea 10 kg per mu, compound fertilizer 5 kg 1-2 times, the whole period of about 5-6 times.
5. Pest control. The main diseases of celery are blight, leaf spot, spot blight, black rot, and soft rot. Physiological disorders include heartburn, hollows, and stem cracks; the main pests are aphids.
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