Soil fertility is at risk in intensive cropping systems when using an exclusive regime of inorganic fertilisers without returning sufficient organic matter to the soil. Our objective was to evaluate the effects of organic amendments interacting with different rates of inorganic nitrogen fertiliser on crop yields of rice and wheat. Yield data from rice and wheat were collected for two seasons between 2018 and 2020 from a continuous field trial based at PAU, Ludhiana and Research station, Dyal Bharang, Amritsar in split plot design. Main plot consisted of four treatments (green manuring, farmyard manure, poultry manure and control) and four subplot treatments (Control, 50 kg N ha-1,75 kg N ha-1 and 100 kg N ha-1) replicated four times in rice crop and its residual effect was studied in wheat. Results revealed that rice-wheat productivity, plant growth, yield attributes and soil nutrients availability increased significantly (p<0.05) with the application of organic amendments at different nitrogen levels. Application of poultry manure in rice helped to increase grain yield over the other amendments and recorded 67.3 % and 61.4 % higher grain yield than control in both the years. The residual effect of poultry manure was also evident in subsequent wheat crop. It could be concluded that application of poultry manure along with 100 kg N ha-1 or 75 kg N ha-1 recorded similar yield, it implies that even lower dose could be sufficient for rice crop as well as following wheat crop to obtain higher yield.