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I. Variety: The current selection includes American celery, Japanese celery, and Gao You it. Dark green leaves, large petiole hypertrophy, good quality.
Second, nursery: greenhouse celery production in autumn and winter, late autumn planted in the greenhouse, covering the greenhouse before the frost, planting in late September, about 60 days of seedling age. The seedlings were sown and sowed. After the sowing, attention was paid to shading. The standard shed was used for 100 g.
Third, the seedling management: 1 after sowing to the emergence of shading coverage, Miao Qi gradually remove the shady net, prevent high temperatures, stagnant water column seedlings, water pouring, keep the soil moist. 2 before emergence 2-3 true leaves, water once every 2-3 days, sooner or later is appropriate, 5-10 leaves appropriate water control. 3 weak seedlings 3-4 true leaves of the topdressing urea, seedlings 1-2 true leaves when the 1-2 seedlings weeding.
Fourth, the appropriate colonization: before planting Mu Shi quality farmyard fertilizer 50000-6000 kg, diammonium 100 kg, 100 kg of plant ash, urea 20 kg, deep turn 20cm30cm. Colonization was selected for cloudy or afternoon colonization with a spacing of 10cm to 20cm and a spacing of 7cm to 10cm. The depth of planting is based on the depth of seedlings in the seedlings, and the water is poured after the planting.
Fifth, colonization management: 1 pre-membrane management, 3-5 days after planting, the ground slightly dry, pouring a slow seedlings, promote slow seedlings. It is easy to grow weeds during the growing season. 2 After defrosting the film, after the frost, the temperature dropped to around 10 degrees Celsius during the day and the temperature was clamped at 5 degrees Celsius during the night. Our local film was buckled in October. 3 post-buckling membrane management, the most suitable growth temperature is 16 °C -20 °C, air humidity 80%, soil moisture 80% -90%, fertilizer and water management, the whole growth period if the ambient temperature is appropriate, the principle of watering is multiple A small amount of top-dressing irrigation is performed simultaneously.
Sixth, pest control: greenhouse celery leaf spot, virus disease, black rot and so on. Insect pests mainly include aphids, whitefly, and spotted fly.
1 Leaf spot; chlorothalonil wettable powder 800 times, 65% mancozeb zinc wettable powder 500 times, and 72.2% Precike water 1000 times spray.
2 Viral disease: Once the virus disease has no radical treatment, it is mainly prevention. One is to prevent and control locusts in a timely manner; the other is to remove central diseased plants in a timely manner; and thirdly, to strengthen fertilizer and water management and prevent droughts and floods. Can also be used 20% of the virus A500-700 times liquid, 20% Virus 500 times liquid control.
3 Black rot: The control method is based on the control of leaf spot.
4 Aphids: 10% imidacloprid 1000 times, or 10% osmium net 1000 times.
5 Whitefly: 10% buprofezin 1000 times, 10% imidacloprid 1000 times, can also be used insect fleas net or enemies stomach smoke agent night cover shed smoke.
6 spotted lilies: 23% green vegetable treasure 1000-2000 times liquid, 20% spot latrine net 1500-2000 times liquid, 10% of larvae kill 800-1500 times liquid.
Celery is more resistant to cold and heat. The suitable growth temperature is 15-20 degrees Celsius, the seedling is -4 degrees Celsius to 5 degrees Celsius, and the adult plants can tolerate a short temperature of -10 degrees Celsius. The roots of celery are shallow, shade-tolerant, and require less light. They can be grown in most parts of northern Shaanxi.