A field experiment was conducted in Vertisol of Malaprabha command of Karnataka to study the effect of integrated nutrient management in maize.  Five years pooled data revealed that  significantly  higher grain yield (77.60  q ha-1), fodder yield (122.69 q ha-1) and NPK uptake was observed in recommended dose of fertilizer (RDF) plus biofertilizer (Azospirillum + PSB @ 350 g ha-1) with one row of sunhemp between two rows of maize (sunhemp incorporated at 45 days after sowing) as compared to rest of the treatments. However, fifth year results indicated that application of 75% RDF plus maize stalk incorporation with cellulolytic culture plus biofertilizer (Azospirillum + PSB @ 350 g ha-1) and  one row of sunhemp between two rows of maize (sunhemp incorporated  at 40 days after sowing)  was on par with 100 % RDF in respect of yield and NPK uptake. Among irrigation levels, significantly higher grain yield (70.26 q ha-1) was recorded at 0.8 IW/CPE moisture regime. Pooled data on uptake of N, P and K by maize was non-significant with respect to irrigation levels. Significant increase in organic carbon (0.46 to 0.67 %) content was recorded due to INM treatments.  Recommended dose of fertilizer plus one row of sunhemp between two rows of maize plus biofertilizer recorded highest available nitrogen (208.9 kg ha-1), phosphorus (31.0 kg ha-1) and potassium (815.1 kg ha-1) in soil after five years.