Because of its tall plants, celery, stems solid, generous, containing less fiber, rich in vitamins, minerals, etc., has been favored by consumers. In the production, the protection facilities of winter-warm greenhouses, arch sheds, and shade nets can be combined to achieve the annual anniversary supply. The key cultivation techniques are now described below. 1 Reasonably arrange the mouthwash, the annual cultivation 1 Winter and springtime Generally, the winter warming house is used for raising seedlings in February. The seedling age is 50-60 days, and it is planted in the arch shed. It will be listed in mid-May. 2 Seedlings in summer and early April are planted in early April, planted in mid-late May, and listed at the beginning of August, and shaded nets are used to shade the greenhouses from June to August. At the same time, it is necessary to protect the root system and prevent dead roots. 3 Autumn delay Early June seedlings, planted in mid-August, filmed in time before frost, and listed in early November. When trying to raise seedlings, try to cool down. 4Autumn and winter seedlings will be planted in early November and will be planted in winter warm greenhouses in the middle of November, and will be listed in January-February next year. 2 varieties of choice can be used in the United States Ventura, California King, tender crisp, Gabriel, the Netherlands celery, Yuyuan celery and other varieties. 3 Cultivate a seedling to treat high temperature season celery should adopt low temperature germination method. The first soaked with 5mg/L gibberellin solution for 8 ~ 12h, and then placed at 15 °C temperature germination. After about 60% of the seed is exposed, it can be sown. 2 The nutrient soil and soil and the decomposed organic fertilizer are thoroughly mixed by 1:1, 100-kg nutrient soil is added with 30-50g carbendazim WP and thoroughly mixed. The prepared nutritious soil was spread evenly on a seedbed with a thickness of 10 cm. For every 1 square meter of nursery bed, 30-50 ml of formalin is used, 3 liters of water is sprayed on the bed, and the film is covered with a plastic film for 3 days to remove the odor. 3 sowing time Select sowing time according to cornice arrangement. The seeding rate is 667 square meters planted with a bed of 50 square meters (with a seed amount of 50g). Temperatures and ground temperatures during winter nursery are all above 15°C. Spread the seeds evenly on the sorghum surface, cover the soil 0.5cm, cover the sash surface with a straw curtain, and keep the soil moist. 4 Seedling management till seedlings to maintain soil and air humidity. After the seedlings are watered, the excessive water affects the development of the roots, and watering is controlled one week before planting. When the shoot height is about 5cm, 3~4 true leaves are divided into seedlings once; the row spacing is 7cm3cm; seedling height is about 10cm, and 6~7 leaflets are sub-seedling once and the spacing is 10cm8cm. Strong seedlings standard: seedling age 50 to 60 days, seedlings about 20cm high, more lateral roots and fibrous roots. 4 Planting 1 Fertilization for soil preparation Apply 5,000-8000kg of fully organic fertilizer, 165kg of diammonium phosphate, 1～2kg of borax, and 1～2kg of potash per 667mu. After mixing and plowing 25cm, mix and smash. The width is 1.5m, the length is not limited, and the leveling is solid. 2 When planting and colonizing, ensure that the 10cm soil temperature is stable to 10°C. When the seedlings are lifted, they are cut off from about 4 cm below the main root, and the seedlings are graded. Trenches are planted in stages to make them grow neatly. Depth to the degree of buried rhizomes, usually 1 ~ 1.5cm, but not buried. Plant spacing to 20cm30cm is appropriate, colonization of 10000 ~ 14000 per 667 square meters, after planting, timely pouring root water. 5 Field Management 1 After transplanting, it takes 10 to 15 days for the new leaves to grow after planting. During this period, we must diligently pour small water and regulate the temperature and humidity. In autumn and winter, the ground temperature is maintained at 14 to 16°C, the daytime air temperature is 15 to 20°C, and the nighttime air temperature is not lower than 7°C; during shading, shading is used to shade the shade to cool down. 2 seedling period after the seedling period should be appropriate to control the water seedlings, seedlings during the seedlings to see dry see wet, cultivator loose soil 1 to 2 times, seedlings to 15 to 20 days is appropriate. 3 After the 35-day planting period in the growing season, large-scale fertilizer and fertilizer are required, ie, 1 fertilizer, 1 clear water, or 2 fertilizers, 1 clear water. Apply urea 10 to 15 kg per 667 square meters, potash 7 to 8 kg, and spray 0.3% potassium dihydrogen phosphate or 1% superphosphate calcium leaching once every 7 to 10 days. 4 Hormone treatment 50 to 100 mg/L gibberellin can be sprayed once 30 days and 15 days before harvest to increase the yield. 5 pest control leaf spot, spot blight 50% carbendazim 800 times or 75% chlorothalonil WP 600 times spray, cloudy use of chlorothalonil aerosol fumigation control. Gray mold can be used carbendazim or mancozeb 800 times control, every 7 days or so, continuous application of 2 or 3 times. Aphids can be used to control 1000 times of anti-influx or 2.5% of deltamethrin EC. 6 The harvesting and harvesting standards are based on the cultivation method and market demand. Generally after 80 to 100 days after planting, the plants can be harvested when they reach 70 to 80 cm in height. When harvesting, the outermost leaves are not yellow, and the leaves are not harvested before the burn. It is advisable to close it. In general, the output per 667 square meters can reach 5000kg or more, and the highest can reach 10000kg.
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