Uptake of soil-applied and foliar-and pod-applied N,P by rape was studied by using 32P and 15N labelled fertilizer under pot culture condition.Application of phosphorus fertilizer to purplish clayey paddy soil which was poor in available P had influence on utilization of basal-dressed NH4HCO3 by rape and subsequently on its growth and seed yield.Utilization rate of applied N in whole plant and seeds were 3.66 and 5.13 fold respectively as compared with control when 187.5 kg/ha of superphosphate were applied and increased with increasing application of superphosphate (187.5-562.5kg/ha).Application of P fertilizer not only increased uptake of N but also promoted transportation of N from vegetative organs to seeds.Rape plant up-took 69.09% of foliar-and pod-applied N in form of 2% solution of urea after flowering and transported the N to seeds in greater proportion than that of soil-applied N.In the same period,60% of foliar-and pod-applied P in form of 0.2% KH2PO4 was absorbed by rape plant,most of which Uptake of soil-applied and foliar-and pod-applied N, P by rape was studied by using 32P and 15N labeled fertilizer under pot culture condition. Application of phosphorus fertilizer to purplish clayey paddy soil which was poor in available P had influence on utilization of basal-dressed NH4HCO3 by rape and following on its growth and seed yield. Utilization rate of applied N in whole plant and seeds were 3.66 and 5.13 fold respectively compared with control when 187.5 kg / ha of superphosphate were applied and increased with increasing application of superphosphate (187.5-562.5 kg / ha). Application of P fertilizer not only increased uptake of N but also promoted transportation of N from vegetative organs to seeds. Rape plant up-took 69.09% of foliar-and pod-applied N in form of 2% solution of urea after flowering and transported the N to seeds in greater proportion than that of soil-applied N. In the same period, 60% of foliar-and pod-applied P in form of 0.2% KH2PO4 was absorbed by rape pl ant, most of which