Weed management in yellow sarson using herbicide with and without soil mulch in direct seeded rice-yellow sarson cropping system

Abstract

In the kharif and rabi seasons of 2021-2022, a field experiment was carried out at the Institute of Agriculture's Agricultural Farm in Visva-Bharati, Sriniketan, Birbhum, West Bengal, to study the impact of herbicides and soil mulch sowing on weed control in yellow sarson (Brassica campestris L var. yellow sarson) in a direct seeded rice (DSR)-yellow sarson cropping sequence. In DSR two treatments viz. soil mulch (pre-sowing irrigation followed by sowing) and no mulch (sowing followed by irrigation) in main plot and pre-emergence (PE) oxadiargyl at 90 g ha-1; post emergence (PoE) bispyribac sodium at 25 g ha-1; PE oxadiargyl at 90 g ha-1 fb PoE bispyribac sodium 25 g ha-1; premix triafamone 20% + ethoxysulfuron 10% at 60 g ha-1 and unweeded control were assigned in subplots in a split-plot design replicated thrice. Yellow sarson cultivar