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结球白菜一般是在12.5℃以上的低温以较短的日数通过春化阶段,并在较长的日照下通过光照阶段;但它不需要生长到一定大小才通过阶段发育,在种子发芽期和幼苗期随时都可通过。西宁地区夏季温度较低,最低温度常在12.5℃以下。故虽在夏秋温暖季节播种结球白菜,也有未熟即抽苔的现象。刘家寨大队感到以往夏季油白莱上市很旺,常有过剩,而此时别的蔬菜品种不多,因此提出春季栽培结球白菜,以便七月下旬到八月上旬上市供应。我们遵照伟大领袖毛主席关于:“人类总得不断地总结
The cabbage is generally passed through the vernalization stage at a low temperature of 12.5 ° C or more and passes through the illumination stage in the longer daylight; however, it does not need to grow to a certain size before it is developed through the stage of seed germination and Seedling can pass at any time. Xining summer temperatures are lower, the lowest temperature often below 12.5 ℃. Therefore, although sowing cabbage cabbage in the summer and fall warm season, there are also immature that is the phenomenon of bolting. Liujiazhai Brigade felt that the past summer, the oil market is very busy, often excess, but not many other varieties of vegetables at this time, so the spring cabbage cabbage proposed in order to be listed in late July to early August supply. We follow Chairman Mao, the great leader, about: "Humans must always sum up