Vol. 11, Issue 8 (2022)

Author(s):
Shrinivas CS, N Krishnamurthy and C Ramachandra

Abstract:
A field experiment was conducted at Zonal Agricultural Research Station, V.C. Farm, Mandya, University of Agricultural Sciences, Bengaluru during the Kharif season of 2015 and 2016 to study the response of nutrient management practices under different rice establishment methods. The experiment was laid out in split plot design with three replications consisting of twenty treatment combinations. Four establishment methods of rice such as Manual transplanted, Mechanized transplanted, Dibbling of seeds followed by SRI principles, and Wet direct seeded rice by broadcasting were followed in main plots and five nutrient management practices such as 100 per cent RDF, 150 per cent RDF, 75 per cent inorganic + 25 per cent Organic, LCC based N application and UASB POP recommended dose of manure and fertilizers, in sub plot. Among the different establishment methods (mean of two years), Dibbling of seeds followed by SRI principles significantly influenced the growth, yield attributes and yield and was on par with Mechanized transplanted significantly superior over manual transplanted method and wet direct seeded rice by broadcasting method and among different nutrient management practices application of 150% RDF was recorded significantly higher growth, yield attributes and yield and which was on par with LCC based N application found superior over 100% RDF, UASB package of practices (FYM 10 t ha^-1 + 100: 50: 50: kg NPK ha^-1 + 20 kg ZnSo₄ ha^-1) and 75% inorganic + 25% Organic (N equivalent basis).