Red Chinese cabbage cultivation techniques

1, species selection

Which breed to choose depends on their own planting strategy. If you want to be early, choose the variety that has been harvested and the heat-resistance and disease-resistance is 50-60 days after sowing. The old vegetable area will focus on Ziting No. 1 and Violet. Ting No. 2, Zi Ting No. 11, Zi Ting No. 3, Zi Rong. Highlights Dingxiu Hongting. Dingxiu Hongting is the preferred variety of red cabbage moss in Jiangxia District. New vegetable areas can also choose to plant red hybrid 50, red hybrid 60, Zi Ting II, Zi Ting III, Zifu, Zihua, Dingxiu Hongting. For overwintering cultivation, choose Zi Ting No.6 with strong cold resistance, Jia Li Hong Ting, Zi Gui and so on.

2, suitable for sowing

Generally from July to late September sowing, the best sowing date for the end of August before and after the summer sowing. Early sowing time, difficulty in raising seedlings, dead planting after planting, low yield, spicy moss or bitterness, delayed sowing date, and less dead seedlings, but too late will shorten the harvest period, reduce the number of harvests and affect yield.

3, seedling management

The seedbed is deep and flat and 1-2 g per m2 seedbed is planted. In order to prevent seedling diseases, 75% chlorothalonil wettable powder 50g fine soil 50kg or so can be used, 1/3 bottom, 2/3 of the soil cover species. Before the emergence of the soil to keep the soil moist, after the emergence of high temperature and dry weather, should be watered every evening, pay attention to anti-mites, yellow stripe jump and diamondback moth and so on. The seedling age of very early maturing cultivars is 20-24 days. Over 24 days, it may happen that bolting in seedbeds or short rosette leaves after colonization is bolting. Mature seedlings are 25 days old, but not full moon seedlings. Only late-maturing varieties can be planted with full moon seedlings.

4, fine soil preparation, full base fertilizer

The land on which the red cabbage moss is planted should be established at the latest 10 days before planting so as to allow more drying. Generally cultivating two times, usually a few days after cultivating and then ploughing once, it is generally appropriate to use eucalyptus furrow irrigation, that is, 1-1.2 meters (baggage ditch) for ditching, one for two lines, early maturing varieties. Can be narrower. Apply enough base fertilizer before planting, applying 2500 kg of high-quality farmyard fertilizer or 100 kg of compound fertilizer per 667m2.

5. Colonization

The seedbed was irrigated the day before planting to facilitate seedlings. When planting seedlings can take the best soil, can not bring as little as possible to hurt the root, with the take with the plant. Seedlings should not be planted too deep to prevent the seedlings from being covered and watered with the plant. After planting a field, it is best to irrigate once, but it can only be irrigated, and it cannot be flooded. Very early varieties were 35-40 cm in narrow rows, and 40 cm in early-maturing varieties with 30-35 cm spacing. If there is an early moss phenomenon before and after colonization, the main moss can be removed, topdressing nitrogen fertilizer, combined with irrigation and urea 15kg/667m2.

6, fertilizer and water management

The soil remained moist throughout the growing season and it was found that the leaves wilted and watered in time. During the whole growing period, the fertilizer was topdressed 4-5 times, 667m2 of urea was used for 5-10kg, and the line was sealed before the second time. 667m2 was treated with potassium chloride plus urea (10kg). The side moss and Sun moss were each harvested once.

7. Pest control

Diseases mainly include downy mildew, soft rot, viral disease, black spot disease, clubroot disease, etc., club root disease should pay attention to depression, rotation. Insect pests mainly include yellow song strips, aphids, vegetable worms, and diamondback moths. Attention should be paid to observation and timely detection of pests and diseases.

Downy mildew: Occurred mainly during rosette leaf growth, spraying with 25% metalaxyl 500x or 58% Kimreda Mille 600x.

Soft rot disease: Mostly originated from infected wounds after harvesting, the disease usually has severe onset in the high-temperature period. With the decrease of temperature, the disease is reduced. After picking moss, smear the wound with mud to prevent infection. After harvesting, it can also be used 200mg/L agricultural streptomycin or 50% DT300 times or 77% can kill 500 times or 15% mancozeb 600 times or 75% chlorothalonil wettable powder 800-1000 times Liquid spray.

Virus disease: use 25% of A 250 times virus or 83 times of resistance agent to spray 300 times solution, combined with spraying foliar potassium fertilizer or potassium dihydrogen phosphate solution.

8, harvest

When the vegetable moss grows to 35-40cm, 2-3 flowers bloom, a small number of buds can be harvested when yellow. Recovery is generally started in early October and harvested twice a week in the early stage. The low temperature in the later period is harvested once a week and harvesting should be conducted in the afternoon to reduce mechanical damage.

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