Authentic Shanghai green cabbage four seasons rapeseed seed seed seeds vegetable seed seeds south rapeseed Suzhou green package mail

Selection of good varieties: cabbage type, mustard type, sweet blue type are the main types of rapeseed planted in China, and it is appropriate to choose varieties with high quality, disease resistance, high yield and bolting resistance, such as Xiaoqingcui, Huaguan, Jinglu No. 2, etc. 2. Apply sufficient base fertilizer: Mu of high-quality and fully decomposed