Chinese cabbage can be divided into spring cabbage, summer cabbage and autumn cabbage from planting and cultivation. Although the cultivation of cabbage is divided into three seasons, the harvest season of spring cabbage, summer cabbage and autumn cabbage is late spring and early winter.
Spring cabbage has few outer leaves and dense leaves, and it takes 50-70 days from planting to harvesting. The planting period is from March 20th to the end of March (the sowing date of early-maturing Chinese cabbage is earlier, from late February of 65438 to early October of 65438 1, such as excellent varieties such as Zhonggan1,8398, Donggan1).
It takes 100 to120 days from sowing to harvesting of summer cabbage, and the suitable seedling age is 30 to 35 days. Sowing in late March to late May (varieties suitable for summer sowing are Pingtou, Xia Guang and Guanzhong No.8).
Autumn cabbage is selected from middle-late maturing or early maturing varieties with disease resistance and heat resistance, such as Jingfeng 1, Youfeng, Qingfeng, Xia Guang, Jing 'an No.8 and so on. , from mid-late June to early August, and harvesting from late September to early October of/kloc-0.
Extended data:
Growth habit
I like warmth, humidity and plenty of light. It is cold-resistant and has the ability to adapt to high temperature. The optimum growth temperature is 15-20℃. Fleshy stems are prone to fibrosis when exposed to high temperature above 30℃ during the expansion period.
The choice of soil is not strict, but it is suitable for planting in clay loam or sandy loam with rich humus. Cabbage seedlings must be vernalized at 0- 10℃, and then bolting, flowering and fruiting under long sunshine and suitable temperature.
Cabbage is propagated by sowing, and it emerges five days after sowing. Check the seedbed every day, pay attention to ventilation and prevent burning seedlings at high temperature, and cover the film antifreeze seedlings at low temperature.