Autumn cabbage cultivation method

The choice of soil is fertile sandy loam, light clay loam and so on. The sandy loam soil has poor fertilizer and water retention, which is not conducive to the development of Chinese cabbage leaf. If the soil is susceptible to soft rot, it is not advisable to grow Chinese cabbage. Chinese cabbage should be rotated for 3-4 years . It can be selected from melons, solanaceous fruits, onion and garlic, beans and wheat crops. It cannot be planted with cruciferous vegetables such as cabbage and radish. The main varieties to be planted are Beijing No.3, Yutian Erbaojian and Tianjin Qing. After the fine land preparation, the sick plants are transported to the field for deep burial, and deep-plowing is 16-25 cm. After each cult, the ploughing and ploughing are done after ploughing . 畦 Width 1-1.5 m, 畦 length 8-10 Meter. Or ridges, ridge height 8-10 cm, ridge back width 70 cm, ridge distance 20 cm. The use of semi-high ridge cultivation can improve the permeability of the soil layer, reduce the disease, promote the growth of Chinese cabbage roots, and is beneficial to drought and drainage.

 

Chemical weed sown before the emergence mu Dole 100 ml of 72% water was added 30 kg ridge plane spray to prevent weeds.

 

Reasonably close planting two rows of each ridge, and 4-5 pieces of true leaves after the emergence of Chinese cabbage can fix the seedlings . The plant spacing is 35-38 cm, and the seedlings are 3900-4000 .

 

After the fertilizer and water transportation plan is fixed, the method of using large water and small fertilizer is adopted according to the situation of phlegm and water, and 3-4 kg of urea per acre is poured with water. Cabbage rosette stage should ensure a sufficient supply of fertilizer per acre potassium dihydrogen phosphate, urea, 6-8 kg each, with water was applied. At the beginning of the ball, the quick-acting nitrogen fertilizer was mainly used, and 15 kg of urea was used in the mu to promote the rapid formation of Chinese cabbage.

 

Pest control The main diseases of autumn cabbage are fungal diseases such as downy mildew and black spot. At the beginning of the disease, spray 25% metalaxyl WP 800 times liquid, Luheng 1 WP 600 times liquid or 70% methyl thiophanate powder 800 times liquid, 40-50 kg per acre , 5-7 days Control once, even spray 3-4 times. The main bacterial disease, such as bacterial soft rot, can be used per acre Green Hang 6 40 gram of water wettable powder spray 30-40 kg, 5-7 days, 3-4 times even spray. For the main pests of Chinese cabbage such as aphids, cabbage caterpillars and diamondback moths, it is possible to control and control non-polluting pesticides such as chlorpyrifos , imidacloprid, 2.5% xixi, 5% taibao and lesben. For older larvae, 20% rice bran and 1.8% avermectin can be used for prevention and treatment. Special attention should be paid to the prevention and control of pests and diseases before the ball is formed, otherwise it will be difficult to prevent and control after the ball is formed.