Cultivation and management techniques of celery in winter greenhouse

Celery, alias celery, early celery, celery, parsley, celery, wild coriander, celery for umbelliferae in a, biennial herbs. Originated in the Mediterranean coast of the swamp, the world has been widely cultivated. Celery belongs to umbelliferae. There are two kinds of celery, celery, similar functions, medicinal celery is better. Celery aroma is stronger, also known as "parsley."

Celery cultivation in China began in Han Dynasty and has a history of more than 2000 years. At first, it was only planted as an ornamental plant, and then it was eaten. After continuous domestication and cultivation, it formed a slender petiole celery cultivar, namely Benqin (Chinese celery). This celery is widely distributed in China, and Zunhua in Hebei, Weixian and Huantai in Shandong, Shangqiu in Henan, Jining in Inner Mongolia and other places are famous for celery production. The ancient Greeks and Romans used it for seasoning, and ancient China also used it for medicine. Ancient celery is similar in morphology to modern wild celery (smallage). In the late 18th century celery was cultivated to form large, succulent, fleshy, erect petioles. The edible part is its petiole. Celery is characterized by a lot of muscle, but has been developed into a number of less muscle varieties, famous for example Pascal (Pascal). In Renaissance Europe celery was often cooked as a vegetable or served as a condiment for soups and stews; in the United States raw celery was often used as an appetizer or salad. The small fruit (or seed) of celery, having an aroma similar to that of the plant, is used as a seasoning; especially in soups and pickles. Celery seeds contain about 2~3% essential oil, the main components are d-argenol (C10H16, that is, limonene) and therinene (C15H24). Celery (A.g. var. rapaceum) having a coarse edible root, eaten raw or cooked as a vegetable.

Cultivation and Management Techniques of Celery in Greenhouse in Winter

Planting celery in greenhouse in winter can effectively avoid the adverse effect of natural environment on celery growth, with high yield and good quality. The yield per mu is 2500~3500 kg, which is 2~3 times higher than that of open field cultivation. Cultivated seedling variety is Hangzhou Sanyeqingqin. A greenhouse field for planting solanaceous vegetables in the last spring is selected as a seedbed, ploughed in the first ten days of September after being rained and exposed to the sun, prepared and sown in the middle ten days of September, with a seed amount of 450 grams per mu of field, no basal fertilizer applied during sowing, and a flat ridge surface with a ridge width of 1.5 meters. After sowing, tiling sunshading net, drenching the ridge surface, and spraying water according to soil moisture. Generally 13~14 days after emergence, timely thinning seedlings after emergence. In autumn, there are many typhoons and rainstorms. Small arch sheds should be set up. In case of rainstorm, a layer of sunshade net should be covered to prevent rain washing. Celery seedlings often occur aphids, available 10% a net 1200 times liquid control. The standard of celery seedling is about 30 days old, with 3~4 true leaves. 1 month before transplanting, 1000~2000 kg organic fertilizer was applied deeply per mu in greenhouse, 70 kg ternary compound fertilizer and 150 kg phosphorus pentoxide were applied per mu in combination with soil preparation one week before transplanting. Transplanted in late November. The seedbed is watered one day before transplanting, which is convenient for seedling and less damage to root system. 8 m wide greenhouse with 5 ridges, 1.2 m ridge width, 0.2 m ditch width, 8 cm plant spacing, 10 cm row spacing, 85000 holes per mu, 1 plant per hole. Also can enlarge row spacing correspondingly, single hole double plant planting. After transplanting, irrigate thoroughly in time. When the plant height is 20cm, 25kg ternary compound fertilizer is applied once per mu one month after transplanting, and then water is poured once, and water is poured 2~3 times according to soil moisture during growth. The temperature and ground temperature of greenhouse management decreased day by day in November, and the greenhouse film was covered 10 days before transplanting in early November to improve the greenhouse temperature. The whole growth period should be opened at both ends of the greenhouse ventilation. If it is difficult to catch up with the market before the Spring Festival, it can be seen that celery grows. Open the shed during the day and keep warm at night to promote celery growth. Harvest and market Harvest and market in mid-January.