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前言结球白菜 Brassica pekinensis Ruprv.为我国主要蔬菜之一。在华北地区这一种蔬菜约占全年蔬菜消费量的25%,约占冬春蔬菜消费量的80%。因此结球白菜的生产对于保证人民周年新鲜蔬菜的供应有巨大的意义。结球白菜和其它作物一样,其生长过程可分为若干时期,各时期对于外界条件有不同的要求,在栽培中也必须针对各个时期的不同要求合理地运用综合的农业技术,才能够保证丰产优质。
Introduction Brassica pekinensis Ruprv. Is one of the main vegetables in our country. In North China this vegetable accounts for about 25% of annual vegetable consumption, accounting for about 80% of winter and spring vegetable consumption. Therefore, the production of cabbage bowls for the anniversary of the people to ensure the supply of fresh vegetables of great significance. Cabbage and other crops like the same, the growth process can be divided into a number of periods, each period of the outside conditions have different requirements in the cultivation must also be the different requirements of various periods of the rational use of integrated agricultural technology, can ensure high yield high quality.