A field experiment was conducted during kharif and rabi seasons of 2007-08 at UAS, Dharwad, Karnataka to studythe effect of organic, inorganic and integrated nutrient management practices on soil fertility, nutrient uptake, productivity and economics of soybean-wheat, groundnut-sorghum, maize-chickpea, potato-chickpea and chilli+cotton. The present study was the fourth year of long term field experiment (LTFE) of Network Project on Organic Farming at Institute of Organic Farming, UAS, Dharwad. At the end of kharif and rabi season of fourth year (2007-08), application of organic manures resulted in significantly higher organic carbon. Whereas integrated application of manure and fertilizers resulted in significantly higher available N, P2O5, K2O and S than chemical fertilizers alone. Significantly higher uptake of N, P and K by kharif and rabi crops was recorded in integrated practice compared to inorganic nutrient management practice. The available N, P2O5, K2O and S were significantly higher in legume based cropping systems during both the seasons of the study than non-legume system. The B:C ratio of chilli + cotton was found to be significantly higher (3.35) than other cropping systems. The organic nutrient management recorded significantly higher B:C ratio of 2.99 than inorganic (2.38) and integrated (2.59) nutrientmanagement practices.