Soil selection is suitable for fertile sandy loam soil, light clay loam soil, etc. The sandy loam soil has poor fertilizer retention and water retention, which is not conducive to the development of Chinese cabbage leaf ball. Heavy clay susceptibility to soft rot, it is not appropriate to plant cabbage. Cabbage should be carried out for 3-4 years of rotation, and it can be used to select the mouths of melons, solanes, onions and garlic, beans, and wheat crops. It cannot be planted with cruciferous vegetables such as cabbage and radish.

The main varieties planted for selection of good varieties include Beijing No. 3, Yutian Erbaojian and Tianjin Qing.

After the fine soil preparation has been harvested, the sick plants are transported to the field and buried deep and 16-25 cm deep. After the tillers are planted, they are raked, 1-1.5 meters wide and 8-10 meters long. Or ridging, ridge height 8-10 cm, ridge back width 70 cm, ridge distance 20 cm. The use of half-high ridge cultivation can improve the permeability of the soil, reduce the disease, promote the growth of Chinese cabbage roots, and is conducive to drought resistance.

Chemical weeding sowing seedlings before the emergence of 72% Dole with 100 ml water 30 kg spray ridge to prevent weeds.

Plant two rows of ridges in each densely planted plant. After the emergence of Chinese cabbage, 4-5 true leaves can be established. Plant spacing 35-38 cm, 3900-4000 acres left.

After the fertilization and water treatment is completed and seedlings are seeded, the method of flooding and small fertilizer is adopted depending on the situation, and 3-4 kg of urea per acre is poured on the water. During the rosette period of Chinese cabbage, adequate fertilizer and water supply should be guaranteed. Each monohydrate of potassium dihydrogen phosphate and urea of ​​6-8 kilograms should be applied with watering. At the beginning of the ball, the quick-acting nitrogen fertilizer was mainly used, and 15 kg of urea was used to promote fast Chinese cabbage balling.

Pest control The major diseases of autumn cabbage include fungal diseases such as downy mildew and black spot. Spraying 25% metalaxyl WP 800 times, Green Hunter 1 WP 600 times or 70% thiophanate powder 800 times, 40-50 kg per acre, 5-7 days Prevention once, spray 3-4 times. For the main bacterial diseases such as soft rot, can be used per acre with green hen No. 6 wettable powder 40 grams of water 30-40 kg spray, 5-7 days once, even spray 3-4 times. For the main pests of Chinese cabbage such as aphids, cabbage caterpillars, and diamondback moth, phytoplankton pesticides can be used for the prevention and control of eucalyptus, imidacloprid, 2.5% vegetables, 5% cilostazol, and LS. For older larvae, 20% rice bran and 1.8% avermectin can be used for control. Special attention should be paid to the prevention and control of pests before ball-breaking, otherwise it would be difficult to control them after balling.

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