沼液叶面肥对脱水油白菜产量及品质的影响
Effects of Biogas Slurry Foliar Fertilizer on the Yield and Quality of Dehydrated Oil Pakchoi
1我国白菜型油菜分为15个类群：6个类群为北方小油菜，8个类群为南方油白菜，还有1个混合类群。
1.15 . campestris were separated into 15 groups : 6 groups from northern origins , 8 groups with southern origins and one mixture group .
油白菜