Choose the field soil to have no pollution, can not be polluted by heavy metals, to choose the direction of the sun, soil drainage is good, soil to be fertile and loose, good permeability
The selection of varieties should be based on the specific planting time. The late maturing seeds should be selected before the end of March, and the early and middle maturing seeds should be selected after the end of March.
When you plant cabbage, you should sprinkle organic fertilizer on the plant. If you have mixed farmyard manure, you can apply some to the cabbage on a sunny day.
To frequently remove weeds in the field, you can sprinkle some plant ash on the plants to control insect pests, or you can use insect killing lamps to trap and kill pests.
1. Different varieties also have different planting time. Cabbage in autumn and winter can be sown in August and mid October.
2. If the greenhouse planting can be postponed to November, the sowing work can be started in September in places with higher temperature.