Performance of pendimethalin fb imazethapyr against complex weed flora in lentil under rice–lentil system

Abstract

A field experiment was conducted during Rabi season of 2014-15 and 2015-16 at farmer’s field of seven villages of Bhagalpur, Bihar to find most effective herbicides for weed management in lentil. Best result was found in application of pendimethalin 1.0 kg/ha as pre-emergence fb imazethapyr25 g/ha at 20 DAS closely followed by imazethapyr25 g/ha at 20 DAS where in the lowest weed biomass was recorded at 40 DAS with maximum weed control efficiency, tallest plant, maximum branches/plant, highest plant dry matter accumulation, highest pods/ plant, seeds/plant, test weight, grain yield, maximum net return and B:C ratio than pendimethalin 1.0 kg/ha as pre-emergence and farmers’ practice (weedy check).