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１ 及时间定苗在油菜具２～３片真叶时进行间苗，株距５～６ｃｍ；油菜具４片真叶时，及时定苗，按预定株距拔去多余苗、杂苗、病弱苗。２ 追施苗肥在施足底肥的情况下，亩追施标准氮肥５～７ｋｇ；在底肥不足的情况下，每亩追施标准氮肥１０～１５ｋｇ。苗期追施氮肥应在三
1 and time Dingmiao in the rape with 2 to 3 true leaves when the thinning, spacing 5 ~ 6cm; rape with 4 true leaves, timely Dingmiao, according to the scheduled strain to pull extra seedlings, miscellaneous seedlings, weak seedlings. 2 topdressing Miao fertilizer in the case of full-foot fertilizer, mu top dressing standard nitrogen fertilizer 5 ~ 7kg; in the case of insufficient base fertilizer, topdressing standard nitrogen fertilizer per acre 10 ~ 15kg. Seedling nitrogen fertilizer should be top-three