Select the field with no pollution, heavy metal residue exceeding the standard, sunny and dry, and convenient drainage. The soil is loose and fertile sandy soil with good drainage performance, and the way of narrow border and deep ditch is adopted, with the border width controlled at 1.2- 1.5m or so, and the border surface should be flat. Different planting time, varieties are also different, if planted before the end of March, it is best to choose late-maturing varieties; For planting after the end of March, choose early and middle maturity varieties.
In the process of planting, weeds in the field should be cleared in time, aphids should be driven by silver-gray sunshade nets, and insect-killing lamps should be used to trap and kill them; Check frequently and do a good job in pest control. After the emergence of seedlings, the thin manure was applied in sunny days 1-2 times, and the manure application to Chinese cabbage was stopped 7 days before harvesting.
Seedling raising method of Chinese cabbage
1, wet the pot soil, spread the seeds and fine soil evenly on the soil surface, cover it with a thin layer of soil, and spray the topsoil with a spray to keep it moist. Generally, it will germinate in 3-4 days, and it will take about 7 days if the temperature is low.
2. Keep the soil moist during the seedling stage, water it once every morning and evening when the temperature is high, and spray 1 time thin decomposed organic fertilizer when watering after 2 weeks of germination.
3. When the seedlings have 4-5 true leaves, they can be transplanted and planted, and the plant spacing can be adjusted according to the size of Chinese cabbage varieties. Generally, it is about 15-20cm, and enough water should be poured after planting. I wish you a good job of shading, and you can carry out normal management after the seedlings adapt to the environment and survive.
4, if you don't need to transplant, to timely thinning, pull out the larger seedlings, so that the seedlings are evenly distributed. Intercropping can be carried out for many times, knowing that the spacing is appropriate, and applying topdressing 1 time decomposed organic fertilizer to Xiaobai after each interval.