Field experiments were conducted for two years at the farmer’s field during kharif and rabi season at Kuttalam, Mayiladuthurai district to study the yield, nutrient uptake and nitrogen use efficiency (NUE) in rice-rice-pulse cropping system due to amalgamated effect of organics and fertilizer N in Typic Haplusterts soil. The treatments consisted of organics viz., composted coir pith (CCP), green manures (GM), sugarcane trash compost (STC), vermicompost (VC), poultry manure (PM) and FYM applied(100%N) and combination of above organics with urea@50%N besides 100% RDN as urea and control in first rice crop. The residual effect of organics were studied in subsequent rice crop with application of fertilizer nitrogen (100% N). Residual effect of organics and fertilizer nitrogen were studied in rice fallow black gram also. The test crops were rice var. ADT 43(kharif), ADT 38 (rabi) and ADT 3 black gram. The results on pooled data revealed that integrated use of organics or residual organics and urea or alone recorded higher yield, N uptake and NUE in rice–rice– pulse cropping sequence over control. Direct application of vermicompost and mineral nitrogen (50%N) recorded the highest grain (5137 kg ha-1) and straw yield (7519 kg ha-1) and poultry manure with fertilizer nitrogen (100%N) recorded the highest (4341, 6926 kg ha-1) grain and straw yield, respectively in rice-rice cropping sequence. Application of vermicompost + fertilizer N recorded the highest N uptake in grain and straw in kharif rice and poultry manure and fertilizer N (100% N) recorded the highest N uptake in rabi rice. Residual effect of poultry manure and fertilizer nitrogen recorded the highest grain yield (371 kg ha-1) and N uptake in rice fallow black gram. The nitrogen use efficiencies were highest in vermicompost (50% N) + fertilizer nitrogen (50% N) in kharif rice, poultry manure + fertilizer nitrogen (100%N) in rabi rice and in rice fallow black gram.