壮苗是油菜高产的基础。为了培育油菜冬前壮苗,应根据不同情况采取相应的田间管理技术对策:1)精心移栽,保证活棵。要移栽6片真叶的大壮苗;移栽前大田要施足基肥,整好畦田,开好“三沟”;移栽时要边起苗、边移栽,不栽细弱苗、称钩苗、杂种苗,要栽稳、栽实,对大苗、高苗要进行深栽 Strong seedling rape is the basis for high yield. In order to cultivate rape winter strong seedlings, should be based on different circumstances to take appropriate field management techniques and measures: 1) Careful transplanting, to ensure live trees. To transplanting 6 true leaves of big strong seedlings; before transplanting to apply Shizu Daejeon field, the entire field, open a good “three ditch”; when transplanting should edge seedlings, while transplanting, not planted seedlings, said Hook Miao, hybrid seedlings, to planted stable, planted, on the seedlings, seedlings to be planted