The earlier the sowing time, the more difficult it is to raise seedlings, the higher the mortality rate after planting, the lower the yield, and the bitter taste of the produced cabbage moss. However, the sowing time is delayed and there are few dead seedlings, but preferential treatment shortens the harvest time, reduces the harvest times and affects the yield. The seedbed should be turned deep and flat, sowing1-2g per square meter. In order to prevent diseases, chlorothalonil can be mixed with fine soil for sowing. Before emergence, the soil should be kept moist. Water at night after emergence to prevent high temperature and dry climate. At the same time, we should pay attention to aphids, flea beetles and diamondback moths. Seedling planting should not be too deep, so as not to cover seedlings. Water it in time after planting. A piece of land should be watered once after planting, but it should not be flooded.

Reasonable control of plant spacing to ensure good permeability, if early bolting occurs before and after, the main moss can be removed and nitrogen fertilizer can be added appropriately to make it return to normal. Sufficient fertilizer and water are needed before and after germination to ensure the formation of plants, especially early-maturing varieties. In addition, attention should also be paid to the prevention and control of diseases of red cabbage, including downy mildew, soft rot, virus disease, black spot disease, clubroot and so on. Cabbage can be sown from July to late September, but it is best to sow in late August. It is difficult to raise seedlings early in sowing date, and the mortality rate after planting is high. However, if the sowing time is delayed, although there are fewer dead seedlings, the harvest cycle will be shortened. When sowing, turnip seeds are usually mixed with fine soil, then disinfected with chlorothalonil and spread on the seedbed.

It is necessary to keep the soil moist before the seedlings grow out of the soil. The weather is usually very hot after the seedlings grow out. If you can't water blindly in hot and dry weather, you need to wait until evening. Insects such as aphids, flea beetles and diamondback moths should be prevented at seedling stage. The day before planting, the seedlings need to be watered thoroughly. The seedlings should be transplanted to the planting site together with the soil near the root system. It should not be buried too deep when planting. After planting, root water should be poured thoroughly, but it is not suitable for large-scale irrigation.

Pour enough water into the soil before sowing, and then sow after all the water has penetrated into the soil. Under normal circumstances, fresh seedlings will grow about ten days after sowing. Planting Carex is particularly important for the daily supply of fertilizer and water. Water once every 4-5 days before and after emergence, and once every 6 days after the seedlings grow tall. It is not advisable to apply too much fertilizer and water before winter, otherwise the upper branches of Carex will grow excessively, making the fleshy roots lack nutrition, which is not conducive to the development of new leaves in the coming year.