Studies on physiological characteristic of rice (Oryza sativa L.) as influence by crop establishment methods and nitrogen management under lowland condition of Manipur valley

Abstract

A field experiment was conducted during pre-kharif season of 2016 and 2017 at Research Farm, College of Agriculture, Central Agricultural University, Imphal, Manipur, to study the effect of crop establishment methods and nitrogen management practices on physiological characteristic of rice. The experiment was laid out in split plot design with three crop establishment methods in main plot and four nitrogen management practices assigned to sub plot with three replication. Among the crop establishment methods SRI method has highest dry matter production hill-1, RGR while conventional method has highest LAI and ICM recorded the highest CGR and NAR. Treatment N3-75% RDN through urea + 25% RDN through FYM produces the highest value in all the physiological character and yield than the remaining three nitrogen management practices. However, due to more dry matter production per meter and crop growth rate ICM contributed the highest yield among the crop establishment methods.