“散球”、“老化”产生的原因　　１．选择品种不当菜花是半耐寒蔬菜。有些早熟品种，在北方低温条件下，只需很短时间就可通过春化。定植后，在花球较小时，短缩的花枝就伸长而产生“散球”。２．幼苗生长受到抑制菜花的花球必须在有足够的叶面积营养的基础上形成、生长。菜? “Scattered ball”, “aging” causes 1. Select varieties of improper cauliflower is half hardy vegetables. Some precocious varieties, in the northern low-temperature conditions, only a short time can be vernalized. After colonization, when the flowerball is small, the shortened flowering branch is elongated to produce “loose balls.” 2. Seedling growth is inhibited Cauliflower flower buds must have sufficient leaf area on the basis of nutrition to form, grow. dish?