北京地区青花菜秋大棚栽培技术一、品种选择青花菜又叫绿菜花，北京地区秋季由暖变凉很快，尤其是在秋大棚青花菜生长后期夜温已降到５℃以下，已不适宜青花菜的生长发育。为避免后期低温对青花菜产量的不利影响，一方面选择适宜播种期，另一重要方面就是选择适宜的栽培品... Beijing cultivation techniques of autumn greenhouse broccoli First, the choice of varieties Broccoli also known as green cauliflower, Beijing autumn from the cool cool, especially in late autumn greenhouse broccoli late night temperature has dropped to below 5 ℃, it is not appropriate Broccoli growth and development. In order to avoid the late low temperature on the broccoli yield adverse effects, on the one hand select the appropriate sowing period, another important aspect is to select the appropriate cultivars ...