2024, Vol. 7, Special Issue 8

A randomised block experiment was carried out at Gandhi Krishi Vignana Kendra (GKVK), University of Agricultural Sciences, Bengaluru to determine the effect of long term manuring and fertilization on sustainability yield index of finger millet and maize in Alfisols. The experimental plot received different organic manures and inorganic fertilizers with continuous cropping of finger millet-maize for the last 33 years. The treatments were 50% NPK (T₁), 100% NPK (T₂), 150% NPK (T₃), 100% NPK + Hand weeding (T₄), 100% NPK + Lime (T₅), 100% NP (T₆), 100% N (T₇), 100% NPK + FYM (T₈), 100% NPK (-S) (T₉), 100% NPK + FYM + Lime (T₁₀), Control (T₁₁). The higher grain yield of finger millet was recorded in the application of 150% NPK (36.85 q ha^-1) whereas higher maize yield was recorded in 100% NPK + FYM + Lime (45.81 q ha^-1) during 2019-20. The lowest finger millet and maize yield was recorded in control and imbalanced fertilizer application (100% N and 100% NP). The maximum sustainable yield index was found in finger millet (0.64) > maize (0.22) with 100% NPK + FYM + Lime application followed by 100% NPK + FYM and 150% NPK. However, lowest sustainable yield index (0.16) in finger millet and 0.01 in maize was recorded in imbalanced fertilizer application. So, rescheduling the rates of organic and inorganic fertilizers to guarantee a balanced supply of plant nutrients can be an effective technique to boost the sustainable yield of finger millet and maize.