大白菜亩产5000公斤 的技术要点 北京郊区栽培大白菜的历史较长,已积累了较丰富的生产经验,通过最近五年的协作活动,又使大白菜栽培技术进一步提高,这里写的大白菜亩产5000公斤的技术要点和上期介绍的北京地区大白菜(窖菜)栽培历程表结合起来看,它们都是五年协作活动的成果,一 Cabbage per kilogram of 5000 kilograms of technical points Beijing suburbs of Chinese cabbage cultivation history is longer, has accumulated rich experience in production, through the last five years of collaborative activities, but also to further increase the cultivation techniques of Chinese cabbage, Chinese cabbage here to write 5000 kilograms per mu of technical points and the introduction of the previous period Beijing cabbage (cellar) cultivation process combined with the table, they are the result of five years of collaborative activities, a