Effect of integrated nutrient management on growth, yield and mineral composition of rice (Oryza sativa L.) in an Inceptisol

Abstract

A field experiment was conducted during 2005-06 at Sahara India Agricultural Research Institute, Lucknow with 13 treatments in RBD taking rice (var. saryu-52) to evaluate the effect of integrated nutrient management on growth, yield and mineral composition of rice (var. saryu-52). Highest grain yield 4.45 tonnes ha-1 (pooled) was recorded with 100 % NPK which was at par with 75 % NPK+10 tonnes ha-1 vermicompost. Among organic treatments, highest yield 2.48 tonnes ha-1 was recorded with 10 tonnes/ha vermicompost followed by 10 tonnes ha-1 farm yard manure and 3 tonnes ha-1 blue green algae (2.21 tonnes ha-1). The integrated nutrient management improved the organic carbon, available N, P, K and S status of post harvest soil. Application of recommended dose of 100 % NPK or 75 % NPK along with 10 tonnes/ha vermicompost were equally beneficial for obtaining higher yields and sustaining soil fertility.