In recent years, through the cultivation of protected land facilities, Luhe Huang Xinqin has been cultivated for the first time in the past two seasons. Autumn celery is available from mid-November to mid-January of the following year. Winter celery is listed from late January to mid-March. 4000 to 5000 kg. Huang Xinqin's protective cultivation techniques in autumn and winter are described below.
Suitable sowing in early August to late October sowing, suitable early sowing is conducive to high yields. Choose a cool, ventilative, convenient drainage and loose soil for the seedbed. Before sowing, soak in fresh water for 24 hours, wash it and put it in a cloth bag. Lift it into a well about 30 cm away from the water surface to make it germinate under 15-20°C. Rinse 1 or 2 times a day with cold and cool water. Day seed dew can be sown. 1 week before sowing, combined with deep-turning land, 1500 kg per hectare of composted organic fertilizer, 1.5 meters wide pods. Choose cloudy days or sunny evening sowing, pouring enough water, after the infiltration of the seeds will be mixed with a small amount of fine soil sowing, the amount of 1.5 kg per acre, after sowing cover 0.5 cm thick dry fine soil.
After cultivating strong seedlings, the shading nets were moisturized and cooled on the surface of the seedlings. Each morning and evening before the emergence, water was poured. After the shoots were exposed, they were changed to a 1-meter-high flat roof. The shading nets were covered every morning as soon as possible, and the shade was not covered. After the first true leaf of the seedling grows, the time for covering the net is gradually shortened to prevent the plants from becoming long. After the seedlings are unearthed, they still need to be watered regularly to keep the surface moist. Seedlings have 1 to 2 leaf blade time seedlings, 3 to 4 leaf blades when Dingmiao, seedling spacing of 2 to 3 cm, and 1,000 kg of diluted manure water per acre. When the seedling height is 3 to 4 centimeters, the shading net is covered only when the sunlight is strong, and water is poured once a day. One week before planting, control the watering, do not cover the shade net, and strengthen the seedlings.
Timely transplanting seedling age 45 to 60 days, seedling height 10 to 15 cm, 4 to 6 true leaves when transplanted. One week before transplanting, combined with soil preparation, 3000 kg of organic fertilizer per mu, 150 kg of compound fertilizer for vegetables, and 1.5 to 2 meters in width. Planting blocks in early autumn can be planted properly, 10 to 14 cm square planting 1 hole, 3 to 4 plantlets per hole; late planting field blocks should be sparsely planted, 14 to 16 cm square planting 1 hole, 2 to 3 plantlets per hole .
Field management (1) Fertilizer regulation. Celery requires large amounts of fertilizer, especially nitrogenous fertilizers to make the stems and leaves tender. Planting logistics and watering to help ease seedlings. During the growing season, the soil is properly watered to keep the topsoil white. After the live celery plant, after the closure of the line and during the vigorous growth stage, the fertilizer was applied once, and the decomposed manure was mainly fecal urine, or 15 kg of urea was applied per acre. (2) Shelter temperature management. Celery cold and heat, autumn and winter can be cultivated in small shelters or greenhouses and small arch cover. In the middle and late November cold season, the shed will be sheltered and a double-covered plot will be used to raise a small arch shed before the winter comes. During the whole growth period, the two shed membranes were ventilated during the day and the night sheds were kept warm. Cold weather drenched shed insulation, and cover straw. (3) Control pests. The disease is mainly spot blotch, which can be controlled by chlorothalonil and carbendazim. The pests are mainly aphids and can be controlled by imidacloprid.
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