Impact of Nitrogen and Silicon Levels on Yield and Relative Economics of Transplanted Rice under Temperate Conditions

Abstract

The field experiment entitled “Impact of Nitrogen and Silicon application on yield and relative economics of transplanted rice under temperate conditions” was conducted at Agronomy Research Farm of Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir during Kharif seasons 2014-2015. The soil of the experiment was silty clay loam in texture, neutral in reaction with medium available nitrogen (442.88kg ha-1), phosphorus (9.3kg ha-1), potassium (221.60kg ha-1) and low available silicon (280.23kg ha-1). The experiment was laidout in Factorial Randomized Completely Block Design assigning combinations of three nitrogen levels viz. 120, 150 and 180N kg ha-1 and four silicon levels viz. Control, 5%, 10% and 15% Si with four replications. The results revealed that higher grain yield (76.00q ha-1), straw yield (93.97q ha-1) and harvest index (44.84%) were recorded with 120Nkgha-1. So far as silicon levels are concerned, 15%Si observed higher grain yield (76 q ha-1), straw yield (93.97 q ha-1) and harvest index (44.84%). Relative economics revealed that 120Nkgha-1 with 15%Si realized higher benefit cost ratio (Rs. 2.12).