Response of rice varieties to integrated nutrient management practices on growth, yield attributes and yields of rice under system of rice intensification

Abstract

A field experiment was conducted during kharif 2010 at Directorate of Rice Research Farm, Rajendranagar Hyderabad. Three varieties (Vasumathi, Tulasi, and RP-BIO-226) and six nutrient management practices (Control, 100% vermicompost, 75% vermicopost+ 25% RDF, 50% vermicopost+ 50% RDF, 25% vermicompost+75% RDF and 100% RDF) were evaluated in split plot design with three replications. Variety RP-BIO-226 performed better in terms of growth and yield components resulting in significantly higher grain yield (4536 kg/ha) over Tulasi (4138 kg/ha) and Vasumathi (3248 kg/ha). Nutrient uptake was also significantly greater with RP-BIO-226 than Tulasi and Vasumathi. Among the different nutrient management practices treatment 50% organic manure (Vermicompost) + 50% Rdf recorded significantly higher grain yield (5010 kg/ ha) over the all the treatments.