早熟春露地甘蓝为了早上市和取得较高的经济效益,一般采取抢“早”的栽培措施。由于不了解春甘蓝未熟抽薹的原因,盲目抢“早”,造成大量未熟抽薹而减产、减收,如遇上持续时间长的倒春寒,则加重损失。据我们1991年调查,抽薹率严重的地块达90%,几乎绝收。我们根据春甘蓝生长发育的特性和北京地区典型年份调查资料分 Early spring to open cabbage to the morning market and obtain higher economic efficiency, generally take grab “early” cultivation measures. Because they do not understand the reason for the spring cabbage immature bolting, blindly grab “early”, resulting in a large number of immature bolting and cut, reduced, such as in the event of prolonged late spring cold, then increase the loss. According to our survey in 1991, 90% of the land with a very high rate of bolting was almost absolutely closed. We based on the characteristics of the growth and development of spring cabbage and Beijing typical year survey data points