First, cabbage planting time:
Cabbage takes 50-70 days from sowing to harvesting. Cabbage has strong adaptability and can be planted in spring, summer and autumn. If it is cultivated in winter, it can be planted in greenhouse instead of in the open air.
Second, the planting technology:
1, sowing method
Mainly by sowing, after finishing the seedbed, the seeds are evenly mixed with the soil and scattered on the soil. Then cover the soil and control the sowing amount, which is generally about 50g per mu. The sowing amount should not be too much, otherwise it will easily lead to the mutual influence of cabbage seedlings.
2. Seedbed management
If cabbage is grown in winter, we should pay attention to heat preservation. One week before sowing, the shed should be properly buckled to increase the temperature in the shed. Cabbage seeds did not emerge after sowing, and the temperature in the small arch shed was controlled at about 22 degrees, and the temperature at night was 15 degrees. In a suitable environment, seedlings can be fully grown in about 4 days.
After the seedlings are in full bloom, we should pay attention to proper cooling and hardening to avoid the phenomenon of tall seedlings. Then we should do a good job of thinning seedlings, and the spacing should be controlled at about 3cm to improve the growth of seedlings.
3. Seedlings are divided and planted.
When the seedlings grow two true leaves, the seedlings should be divided. First, the nutrient soil should be prepared, and then the nutrient bowl should be prepared. Control the planting density for heel in, water the seedlings properly after dividing, and raise the temperature, with the daytime temperature 18 degrees and the night temperature 10 degrees, and keep it for about 5 days. When the seedlings grow seven true leaves, they can be planted. Before planting, soil preparation and fertilization should be done well in the field.
The planting density should be well controlled, and the row spacing should be kept at about 30x40cm. Finally, dig the planting hole and start planting, and the depth is equal to that of the seedling mound and the border surface.
4. Water and fertilizer management
After planting, water it once to promote seedling stability, and then water it once after about 5 days. Do a good job of intertillage, raise soil temperature and enhance the growth ability of seedlings. After the rosette leaves grow, reduce the watering amount, avoid the phenomenon of excessive growth, promote the squatting of seedlings, and control the squatting time according to the varieties, for example, the early-maturing varieties squat for about a week, otherwise they will squat for about half a month.
After entering the rosette stage, water reasonably, and increase the amount of water and fertilizer in the heart-wrapping stage. Top dressing fertilizers are mainly urea and farmyard manure.