Abstract: An incubation experiment was conducted at 2014 in the Department of Soil and environment, Agricultural college and Research Institute, Madurai with the objective to study the Nitrogen release pattern of two fertilizers in two different Soils as influenced by three manures, Via., FYM, Vermicompost and Green Leaf Manure. The treatments were replicated twice in a completely randomized block design. There were 16 treatments viz., T1 (Madhukur + Urea) Control, T2 (Madhukur + Urea + FYM), T3 (Madhukur + Urea + Vermicompost), T4 (Madhukur + Urea + GLM ), T5 (Madhukur + (NH4)2 SO4) Control, T6 (Madhukur + (NH4 )2SO4 + FYM), T7 (Madhukur + (NH4)2SO4 + Vermicompost), T8 (Madhukur + (NH4)2 SO4 + GLM), T¬9 (Vayalogam +Urea ) Control, T10 (Vayalogam + Urea + FYM), T11 (Vayalogam + Urea + Vermicompost), T12 (Vayalogam + Urea + GLM), T13 (Vayalogam + (NH4)2SO4) Control, T14(Vayalogam + (NH4) 2 SO4 + FYM), T15 (Vayalogam + (NH4)2SO4 + Vermicompost), T16 (Vayalogam + (NH4) 2SO4 + GLM). The experiment results revealed that, Madukur series has recorded higher N release during different periods of incubation. From 5th day onwards the soil with manure application shows increase in nitrogen release. N release from Ammonium sulphate is quicker than urea. Green leaf manure is found to have higher influence in N release than other manure. N release was high in ammonium sulphate when applied in soil belonging to madukur soil series along with green leaf manure.