Herbicides performance for managing weeds in berseem under sub-mountainous conditions of Punjab

Abstract

A field experiment was conducted at farmer's field of district Gurdaspur during the winter seasons of 2014–15 and 2015–16 to assess the performance of various herbicides for managing weeds in berseem under sub-mountainous conditions of Punjab. The experiment was laid out in a randomized block design having three replications and comprised of eight treatments, viz. fluchloralin 0.45 kg/ha, pendimethalin 0.75 kg/ha, imazethapyr 0.075 kg/ha, oxyfluorfen 0.1 kg/ha, fluchloralin 0.45 kg/ha followed by (fb) imazethapyr 0.075 kg/ha, pendimethalin 0.75 kg/ha fb imazethapyr 0.075 kg/ha, oxyfluorfen 0.1 kg/ha fb imazethapyr 0.075 kg/ha and a weedy check. All the weed control treatments caused significant reduction in weed density and biomass as compared to weedy check. The lowest weed density, weed biomass, maximum weed control efficiency, more number of tillers, maximum pooled green fodder and pooled seed yield and highest net returns were observed with fluchloralin 0.45 kg/ha fb imazethapyr 0.075 kg/ha, which was closely followed by application of oxyfluorfen 0.1 kg/ha fb imazethapyr 0.075 kg/ha.