I. Cabbage (1) Select excellent seeds and sow The early-maturing, high-yield and disease-resistant varieties Zhonggan 11 were selected and cultivated in the end of December to early January with Yangshuo seedlings. The foot water was poured 1 to 2 days before sowing and the cover soil was 0.3-0.5 cm after sowing. 50 to 100 grams, then cover the film and welt. (B) Seedling Management The seedlings were flushed until the first true leaf was unfolded and kept at 18-20°C during the day. When the temperature was higher than 20°C, a small breeze should be released at noon. The seedlings were divided into seedlings at a distance of 2.5-3 inches when they were two leaves long. Keep 23 to 25°C during the day after seedling and no lower than 12°C during the night. Then gradually release the air to maintain the temperature at 18°C. When the plants grow to 4 to 6 leaves, the seedlings will be shoveled with soil and the seedlings will be 2 to 3 Days can be planted. (c) Colonization When the average daily temperature reaches 6°C, it is suitable for planting and the north is usually in early March. Due to the short ripening period of cabbage, should be enough base fertilizer, immediately after planting watering, immediately after the water covered with a film to prevent freezing damage, is conducive to slow seedlings. Second, melon (I) Selection of local farm breeds that have performed well over the years (B) Nursery and seed treatment In early April, planting seedlings, pouring enough water in advance, after sowing, covering 2 to 2.5 cm, cover the film. (c) Colonization After harvesting the cabbage, the timely preparation of the soil was completed and the melon was planted in late May. (D) fertilizer and water management The melon seedling needs less water, and the first water is poured 15 to 20 days after planting, and fertilizer and water management must be strengthened after the melon is set. At the end of July and early August, when the melon flesh on the skin disappears, the dark green skin or white powder covered, it should be timely harvest. Third, cabbage (I) Timely nursery The seeds were sown on August 3~5 and they were drilled. (B) Seedling Management Take the technical measures of “three waters, seedlings, and five watersâ€. Watering on the day after sowing provides the water needed for seed germination. The seedling top soil is then watered to moisten the soil surface and promote seedling emergence. After the seedlings are unearthed, the third water is poured and the soil seams are sealed to protect the young roots. In addition, in the interval, Dingmiao and then poured two water, this five water in addition to the needs of seedlings unearthed, the more important thing is to adjust the soil moisture, help to cultivate strong seedlings. (c) Colonization August 20th to 25th is suitable for colonization. (4) Formula fertilization, stage fertilizer Cabbage takes leaf as the product organ and requires more fertilizer and water throughout the growth period. The ratio of nitrogen, phosphorus, and potassium is 4:2:5. The period from the germination period to the rosette stage is the most when absorbing nitrogen. To achieve high yield and stable production of Chinese cabbage, based on the application of base fertilizer, the whole growth period should be top-dressed in accordance with the proportion of nitrogen, phosphorus, and potassium absorption, and the ball fertilizer should be reused. (5) Integrated control of pests and diseases The main pests and diseases of Chinese cabbage are virus disease, soft rot, downy mildew and so on. Can use agricultural streptomycin, anti-virus scorpion spray control. Laryngoscope Fibre Optic,Medical Bulb Laryngoscope Set,Lightbulb Laryngoscope,Conventional Adult Bulb Laryngoscope Jiangsu Yongle Medical Technology Co., Ltd. , https://www.jsylmedical.com