In the Jinhua area, three pods of celery can be planted each year, and the varieties should be selected as “Zhengda crisp celery†and local celery. The first crop is planted in April-May, the second crop is planted in July-August, and the third crop is planted in September-October. The second crop cultivation technology is now described as follows: Nursery: July-August is a hot and dry season, should choose a convenient source of water, soil retention better land to do seedbeds. The amount of seed per acre of Honda is 150 grams, and the area of ​​seedbed is 60-70 square meters. Seedbed disinfection can be sprayed with 95% hymexazol 2000-3000 times solution, or with 20% carbendazim wettable powder 2 kilograms per acre. 7-10 days before sowing, Shi Shi amount of organic fertilizer was used as base fertilizer. Before sowing, the seeds of celery must be germinated by soaking seeds in fresh water for 12 hours, then soaking in warm water at 48°C for 30 minutes, then washing the seeds with fresh water, wrapping them in gauze, and placing them in a refrigerator freezer at a temperature of 0-7. °C, keep moist, 3 days or more when more than 30% of seeds can be sown when exposed. Before seeding, the seedbed should be poured with enough water, sowed by sowing, and covered with 0.5 cm thick fine mud after sowing. Before sowing, spraying "Shi Tianbu" to remove weeds and putting scaffolds to cover shade nets. Watering in the morning and evening on sunny days keeps the soil moist. After the seedlings are covered with a thin layer of muddy ash, cover the fine mud once every 10-15 days to prevent the roots from sprouting. Colonization: seedling age of about 30 days for planting, basal manure Mushi 1300-1500 kilograms of chicken manure, compound fertilizer 36 kilograms, plowing after planting, planting a width of 1.5 meters wide, line spacing 1212 cm, 1-2 plants per hole . Field management: After the seedlings have survived, shade can be covered with shaded nets in sunny or rainy weather, sooner or later and in cloudy weather, and covered continuously one week before harvest. Pour water once in the morning and evening on sunny days to keep the soil moist. In the fertilization management, after the seedlings survived, 7.5 kg urea can be used to pour water per acre, and 7.5 kg of compound fertilizer can be applied every 10-15 days. At the same time, spraying leaching solution of 0.1% borax and superphosphate 2-3 times, spraying leaf fertilizer for 15 days before harvest. The main pests and diseases that damage celery are soft rot, leaf blight, and rapeseed meal, cabbage caterpillar, etc., and should be promptly controlled.
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