How to manage planting purple cabbage in autumn?

How to manage planting purple cabbage in autumn? Please introduce how to manage each stage of planting purple cabbage in autumn as follows: first, seedling management. Attention should be paid to prevent the occurrence of diseases and insect pests in the seedling stage. Autumn purple cabbage is usually sown in early July, and the seedling stage is mainly to prevent the damage of fungi and underground pests. In order to prevent the occurrence of seed-borne bacteria and soil-borne diseases, the seeds can be mixed with seedling bacteria at the proportion of 1:1, and in order to prevent underground pests, 1500 times liquid of chlorpyrifos can be used to spray the seedbed before sowing. At the same time, attention should be paid to foliar spraying with 1500-fold solution of Amicida every 7 days after emergence to prevent the occurrence of diseases such as standing blight and quenching in seedling stage. two。 We should pay attention to dry watering in the process of water management. recently, due to the high external temperature, dry air, water dispersion and weak roots of purple cabbage, we should pay attention to timely watering. 3. It is necessary to pay attention to timely film mulching in the hot and rainy season, and the seedling bed should pay attention to shade and rain prevention. If a small arch shed is set up on the seedling bed in time after sowing, the old greenhouse film with poor light transmittance can be used to prevent Rain Water from infringing and sunburn the seedlings. Second, after planting, purple cabbage is cultivated in the border, the width of the border is generally 1.75m, the row spacing is 45cm, and about 2500 plants are planted per mu. The leaf extension area of purple cabbage is very large before it is wrapped, and the excessive plant density can easily cause leaf overlap and cause pathogen infection. In addition, due to the high temperature in summer and the rapid growth of weeds, attention should be paid to timely removal of weeds, especially after ridge sealing, to prevent diseases and pests from growing on weeds. After planting, the slow seedling water should be gently watered for 1-2 times, and then the amount of fertilizer should be adjusted reasonably according to the plant growth. Master Ma said that after planting, water-soluble fertilizer is mainly applied. In a month and a half after planting, you can use aromatic run (20-10-30) 2.5-5 kg per mu each time, and 5-7.5 kg (20-10-30) 5-7.5 kg after entering the pericardium period. Purple cabbage mainly prevents the occurrence of bacterial black rot and soft rot in the process of planting, which can be prevented by alternating use of 1000 times solution of streptomycin sulfate and copper complex. In addition, the whole growing period of purple cabbage should pay attention to the prevention and control of insect pests, such as cabbage green insect, yellow striped jumping beetle and so on. 2% methylvitamin salt or 20% cypermethrin 1000 times solution can be used regularly for prevention and control. Click to get more cabbage planting techniques click to get more vegetable planting techniques