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张家口地区历年大白菜病虫害发生较为严重，为减轻病虫害危害的损失，从１９９８年市原种场开始引进“北京新三号”大白菜，新品种实现了６６７ｍ２（亩）产７５００～９０００ｋｇ（公斤）的预期目标，受到群众的欢迎。 该品种是最新育成的一代杂交种，生育期８０天，植株半直
In order to reduce the damage caused by pests and diseases, the “Beijing No.3” Chinese cabbage was introduced from the original seed market of the city in 1998. The new varieties produced 7500 ~ 9000kg (kg) of 667m2 (mu) Expected goals, welcomed by the masses. The variety is the latest generation of hybrids bred, growth period of 80 days, semi-straight plants