Compared with control,two kinds of dilution concn.of seaweed extracts from Norway increased the rape yield by 27.57% and 25.51%and that from China increased by 11.11% and 8.23%.

• [结果]浇施海藻稀释液对油菜生物量均有一定的提高，2种浓度的挪威海藻提取物分别比对照增产27.；57%25和25