Weed control efficiency and weed index in soybean as influenced by flumioxazin and its effect on succeeding green gram

Abstract

A field experiment was conducted during kharif season, 2018 at Zonal Agricultural and Horticultural Station, Navile, Shivamogga to evaluate the effect of Flumioxazin 50% SC to control weed flora in Soybean as well as to know its phytotoxicity. The results revealed that the pre-emergence application of Flumioxazin @ 125 g.a.i./ha proved effective in reducing weed density thereby increased weed control efficiency up to 96.76 and 80.20 per cent at 30 and 60 DAS respectively followed by pre-emergence application of Flumioxazin @ 100 g.a.i./ha. The maximum grain yield was also recorded by the application of Flumioxazin @ 125 g.a.i./ha next to hand weeding treatment due to better weed control at critical crop growth stages. No phytotoxic symptoms were noticed on Soybean as well as on succeeding green gram crop even at the higher dose of Flumioxazin @ 250 g.a.i./ha thus proving safe to use without residual toxicity.