甜菜植株含氮量与施氮量呈极显著正相关，生育中前期氮的分配以叶部为主，其后氮向根的分配率增加，但高氮处理到生育后期氮对叶部的分配率仍处于较高水平，不利于产量形成和糖分积累。甜菜植株磷、钾含量与施氮量至极显著正相关，氮与磷、钾表现出明显的互作效应。 Nitrogen content in sugarbeet plants was significantly and positively correlated with nitrogen application rate. Nitrogen allocation in the early growing stage was dominated by leaf parts, and then the allocation rate of nitrogen to roots was increased. However, the distribution of nitrogen to leaf parts during high nitrogen treatment to late growth stage Rate is still at a high level, is not conducive to the formation of sugar production and accumulation. The content of phosphorus and potassium in sugar beet plant had a significant positive correlation with nitrogen application rate, and nitrogen and phosphorus and potassium showed obvious interaction effect.