秋播油菜能不能安全越冬,除去适时播种、培育壮苗,有一个好的基础外,管与不管则是一个很关键的问题。入冬前跟上必要的管理,可以使壮苗、特别是弱苗增强抗逆性,保证安全越冬。相反,壮苗也会影响产量;弱苗则会受冻致死,造成废弃。这是几年来,很多单位在实践中所证明了的,因此,必须重视油菜的越冬管理,坚决克服种而不管,管而不细的作法,真正作到 Autumn canola can be safely wintering, except for timely sowing, nurturing strong seedlings, there is a good foundation, the tube and no matter is a very crucial issue. Keeping necessary management before entering winter can make strong seedlings, especially weak seedlings, enhance stress resistance and ensure safe winter. On the contrary, strong seedlings will also affect the yield; weak seedlings will be frozen and killed, resulting in discarded. This has been proved by many units in practice in recent years. Therefore, we must pay attention to the management of overwintering rapeseed and resolutely overcome the difficulties of cultivation rather than regulation.