移栽油菜 ,苗期在受到不良环境因素的影响后 ,会导致生理失调 ,生长缓慢而形成僵苗。僵苗在冬前不发 ,越冬期间易受冻害 ,春后秆细角果少 ,严重影响产量。引起油菜苗期僵苗的原因有多方面 ,在生产上要及早培管 ,防止僵苗的发生。一、渍害僵苗排水不良 ,整田时糊泥包浆 ,形成暗 Transplanting rape, the seedling stage by adverse environmental factors, will lead to physiological disorders, slow growth and the formation of stiff seedlings. Stiff seedlings do not make before winter, vulnerable to frost damage during winter, post-stem straw nematodes less seriously affect the yield. Ripe seedlings caused by rapeseed seedlings in many ways, in the production of early training to prevent the occurrence of stiff seedlings. First, the stain Zhuang Miao poor drainage, the entire field when paste paste, the formation of dark