Xiangzayou763 was used as material to study the effects on rapeseed stem-leaf soluble sugar and free amino acids and rapeseed yield in different fertilizer levels（N∶P2O5∶K2O∶B：treatment A,240∶120∶210∶1.2 kg/hm^2;B,180∶90∶157.5∶0.9 kg/hm^2;C,120∶60∶105∶0.6 kg/hm^2;D,60∶30∶52.5∶0.3 kg/hm2;E,no fertilizer）and planting density（7.5×104,1.5×105,2.25×105,3.0×105,3.75×105,4.5×105plant/hm^2）.The result indicated that the content of soluble sugar in rapeseed stem was increased with fertilizer decreased and inseased with density ...
