北京地区大白菜栽培技术（三）（六）田间管理１苗期管理苗期管理工作的好坏，是大白菜能否长好的关键。苗期全田生长整齐一致、健壮，能增强抗病能力，苗期病毒病轻，其他病害也相应减轻，将为大白菜丰产打下良好基础。因此，苗期管理的主攻目标是“苗全、苗齐、苗壮”... Beijing cabbage cultivation techniques (three) (six) field management 1 seedling management seedling management is good or bad, is the key to whether Chinese cabbage can grow well. The whole field of seedling growth neatly consistent, robust, can enhance disease resistance, seedling virus disease is light, and other diseases are also reduced, will lay a good foundation for the yield of Chinese cabbage. Therefore, the main target of seedling management is “Miao Quan, Miao Qi, Miao Zhuang” ...