Cabbage selection of excellent seeds, suitable sowing: selection of early-maturing, high-yield, disease-resistant varieties of Gann 11 for many years, using Yangshuo seedlings from the end of December to early January, pouring foot water 1 to 2 days before sowing, covering soil after sowing 0.3 to 0.5 cm, with a seed amount of 50 to 100 g, and then cover the film and the grass felt.
The seedlings are released until the first true leaves are unfolded, and the temperature is maintained at 18-20 °C during the daytime. When the temperature is higher than 20 °C, a small wind is placed at noon. When the seedlings grow to two leaves, the seedlings are divided by 2.5 to 3 inches. After the seedlings, keep 23 to 25 °C during the day, not less than 12 °C at night, and then gradually release the air to keep the temperature at 18 °C. When the plants grow to 4 to 6 leaves, the seedlings will be shoveled, and the seedlings will be 2~3. Days, you can colonize.
When the average daily temperature reaches 6 °C, it is suitable for colonization. Because the ripening period of cabbage is short, the base fertilizer should be applied. Watering should be carried out immediately after planting. Immediately after watering, the film should be covered to prevent freezing damage, which is beneficial to slow seedlings.
Winter melons use local farmer varieties that have performed well over the years. Sowing seedlings in early April, pouring the bottom water in advance, covering the soil 2 to 2.5 cm after sowing, and covering the film. After the harvest of the cabbage, the land was planted in time and the melon was planted in late May.
The winter melon seedlings require less water, and the first water is poured 15 to 20 days after planting. After the melon is fixed, the fertilizer and water management should be strengthened. At the end of July and early August, when the hair on the melon peel disappears, the peel is dark green or white powder, and it should be harvested in time.
Cabbage was sown on August 3-5, using the strip method. Take the technical measures of “three waters and five seedlings, five waters and fixed treesâ€. Watering on the day after sowing, supplying the water needed for seed germination, watering the top soil of the seedlings, moistening the soil surface, promoting the emergence of seedlings, pouring the third water after the seedlings are unearthed, sealing the soil joints, and protecting the young roots. In addition, after the seedlings are fixed, the two waters are poured. In addition to the seedless soil for the seedlings, it is more important to adjust the soil moisture, which is conducive to the cultivation of strong seedlings. August 20-25 is the appropriate period for colonization.
Formulated fertilization, staged topdressing: Chinese cabbage takes leaf ball as product organ, and needs more fertilizer and water during the whole growth period. The ratio of nitrogen, phosphorus and potassium is 4:2:5, and the most uptake of nitrogen during the germination period to the rosette stage. The absorption of potassium is the most, so to achieve high yield and stable yield of Chinese cabbage, on the basis of the application of the base fertilizer, the whole growth period should be followed by staged topdressing according to the absorption ratio of nitrogen, phosphorus and potassium, and the application of the ball fertilizer.
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