Response of rice (Oryza sativa L.) as influenced by different planting systems and graded levels of nitrogen on yield, quality and economics

Abstract

The field experiment was conducted during kharif season of 2016 at Crop Research Farm (CRF) SHUATS, Allahabad. The experiment was carried out to find the performance of three planting methods, (P1: Conventional transplanting; P2: System of Rice Intensification; P3: Machine transplanting) and three different levels of Nitrogen (N1: 60 kg Nitrogen ha-1, N2: 90 kg Nitrogen ha-1, N3: 120 kg Nitrogen ha-1) which laid out in Randomized Block Design (RBD) & replicated thrice. The experiment finding revealed that the treatment T9 (SRI + 120 kg Nitrogen ha-1) significantly performed better than all other varieties viz; Number of effective tillers hill–1 (18.59),Number of grains panicle–1 (108.88), Length of panicle (27.90 cm), Test weight (24.82 g), Grain yield (5.34 t ha–1), Straw yield (10.26 t ha–1), Harvest index (34.23%) and Protein content (8.37%). While the same treatment T9 (SRI + 120 kg Nitrogen ha-1) recorded highest gross return (152600.00 Rs ha–1), net return (92077.92 Rs ha–1) and B: C ratio (2.52), however treatment T6 (MTR + 120 kg Nitrogen ha-1) and T7 (SRI + 60 kg Nitrogen ha-1), T8 (SRI + 90 kg Nitrogen ha-1) T9 (SRI + 120 kg Nitrogen ha-1) were statistically at par with treatment T9.