Planting methods and weed management to improve yield in dry-seeded rice Yadav R.I.1, Singh M.K.*,1, Singh Ram Kumar1, Nagargade Mona1 1Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221 005 *Email: mksinghl94.m@gmail.com
Abstract A field experiment was conducted to evaluate the effect of planting methods and weed management in direct dry-seeded rice during summer season of 2012 and 2013 at Agricultural Research Farm, Institute of Agricultural Sciences Banaras Hindu University, Varanasi (Uttar Pradesh). The treatment comprised of five rice planting treatments, viz. conventional tillage normal spacing [row to row (R x R)-18 cm], conventional tillage square planting (RxR-20 cm, plant to plant (P x P)-20 cm), conventional tillage paired row (9-27-9 cm), reduced tillage paired row (9-27-9 cm), reduced tillage square planting (R x R-20 cm, PxP-20 cm) in main plot and sub-plot consisted of four weed management treatments, viz. weedy, two hand weeding, pendimethalin 1.0 kg/ha fb azimsulfuron 17.5 g/ha + bispyribac 25 g/ha (tank mixed) at 15 DAS fb one hand weeding (HW), oxadiargyl 50 g/ha fb metsulfuron-methyl 2 g/ha + chlorimuron-ethyl 2 g/ha (ready mix) at 20 DAS fb 1 HW. Significant reduction in weed density and biomass was recorded in two hand weeding fb pendimethalin 1.0 kg/ha fb azimsulfuron 17.5 g/ha + bispyribac 25 g/ha (tank mixed) at 15 DAS fb 1 HW which resulted in improved growth and yield attributes and yield of rice. Amongst rice planting methods, conventional tillage normal spacing (R x R-18 cm) and conventional tillage paired row (9-27-9 cm) were able to compete with weeds more as compared to other rice planting methods resulting in lower weed density and weed biomass, enhanced rice growth and yield attributing characters and yield. Top Keywords Dry-seeded rice, Herbicides, Planting methods, Weed management, Yield. Top |