Effects of Different Fertilization Levels on Growth and Yield of Winter Rape

Field plot experiments were conducted to investigate the effects of different fertilization levels on growth and yield of Xiangzayou763.The results showed that fertilization can significantly increased diameter of rootstalk,length of leaf,dry matter accumulation amount and grain yield,but have no obvious impacts on height of plant,effective branches and width of leaf.Among all of treatments,the highest yield reached 2 300 kg/hm2 when fertilization level of N,P2O5,K2O and B was 180,90,58 and 0.90 kg/hm2,respectively.Therefore,fertilization can promote the absorption of nutrients,and there is a positive correlation between seed yield,dry matter accumulation amount and fertilization level.