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一、甘蓝先期抽(?)的原因:甘蓝的长叶结球为营养生长,抽薹开花为生殖生长。由营养生长转入生殖生长需要完成春化阶段和光照阶段,春化和光照阶段需要三个基本条件。其中这三个基
First, the reason why cabbage first pumping (?): Cabbage’s long-leaf knot for vegetative growth, bolting and flowering for reproductive growth. From vegetative growth to reproductive growth needs to complete the vernalization stage and light stage, vernalization and light stage needs three basic conditions. One of these three bases