In different varieties under the same level of P,The P accumulated was higher in HOV than in HPV and MV,indicating that the P requirement was larger for HOV that HPV and MV.

• 同一处理不同品种间是高油品种磷素积累量大于中间型品种和高蛋白品种,说明高油品种需磷量多于中间型品种和高蛋白品种。