Author(s):

B Vimalan, S Thiyageshwari, K Balakrishnan, A Rathinasamy and K Kumutha

Abstract: A field experiment was conducted to investigate the combined effect of NPK (Nitrogen, Phosphorus and Potash) on the yield and uptake of Barnyard Millet Grain (Echinochloa frumentacea (Roxb.) Link) in Typic Rhodulstalf soil, Rabi 2017. The objective of study was to determine the optimum rate of NPK for barnyard miller. The thrice replicated treatments T₁:absolute control (without NPK), T₂:40-15-15 (NPK), T₃:40-20-15 (NPK), T₄:40-25-15 (NPK), T₅:50-15-15 (NPK), T₆:50-20-15 (NPK), T₇:50-25-15 (NPK), T₈:60-15-7.5 (NPK), T₉:60-20-7.5 (NPK), T₁₀:60-25-7.5 (NPK), T₁₁:60-15-15 (NPK), T₁₂:60-20-15 (NPK) and T₁₃:60-25-15 (NPK) kg ha^-1 were tested in Randomized Complete Block Design (RCBD). The results revealed that maximum growth parameters responded significantly to NPK fertilizers. It is concluded that highest grain yield of 2019 kg ha^-1 was recorded with the application of 60-20-15 NPK kg ha^-1. The increase in yield was 40.8% higher as compared to control (1196 kg ha^-1), where no fertilizer was used.

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