结球白菜是我国冬季和早春的主要蔬菜,一般在立秋播种,立冬至小雪前后收获。春季不能栽培,因为早春气温低,很容易通过春化阶段,以后,气温升高,日照加长,具备了通过光照阶段和花苔生长的条件,就会发生未熟抽苔和不能形成叶球的现象。在旅大、青岛等地,因受海洋性气候的影响,春季温和季节较长,已经能够在春季生产结球白菜,如果在内陆地区,也能解决春季栽培结球白菜的问题,不仅可以在春夏蔬菜淡季中提供大量的新鲜结球白菜,而且对大办农业、大办粮食也有很大的意义。通过一年的试验,初获成功,现将结果加以简述,以供有关部门参考。 Cabbage is the main winter vegetables in China and early spring, usually in the autumn seeding, the beginning of the winter to the harvest before and after the snow. Spring can not be cultivated because of the low temperature in early spring, it is easy to pass the vernalization stage. In the future, when the temperature rises and the sunshine is lengthened, the phenomenon of immature bolting and the formation of the leaf bulb may occur due to the light stage and the growth of the moss. . In the Luda, Qingdao and other places, due to the influence of the maritime climate, a relatively mild spring season, has been able to produce cabbage cabbage in the spring, if the inland areas, but also to solve the problem of spring cabbage cabbage cultivation, not only In the off-season in the spring and summer vegetables to provide a large number of fresh cabbage cabbage, but also for agriculture, food big also has great significance. After a year of testing, the initial success, the results will now be outlined for reference by the relevant departments.