油菜在越冬以后,随着气温的升高,生长加速,由越冬期的“上闲下忙”进入“上下一起忙”的阶段。地上部开始现蕾抽薹,是营养生长和生殖生长的双旺盛时期,也是形成秆壮、根强、枝多,搭好丰产架子的关键时期。在生产上要采取有效措施,促进春发稳长,保证绿叶多,叶面积大,茎秆粗壮,分枝多,干物质积累多,这样才有利于角果和籽粒的发育,夺取高产。所以,油菜在蕾薹期进行看苗诊断,根据苗情因苗管理,以达到春发稳长,在生产上是十分重要的。 After the winter rape, as the temperature rises, the growth accelerates from the “busy on the busy” into the “up and down together busy” stage. The upper part of the bud began bolting, vegetative and reproductive growth of the double-strong period, but also the formation of strong stalks, roots, branches, set a key period of high yield shelves. In the production should take effective measures to promote stable spring hair to ensure that more green leaves, large leaf area, stem sturdy, branching and more dry matter accumulation, so as to facilitate the development of pod and grain, to obtain high yield. Therefore, the rapeseed nursery tiller bud diagnosis, according to the Miao situation due to Miao management, in order to achieve a stable spring, in production is very important.