Integrated weed management in blackgram (Vigna mungo) under mid hills of Arunachal Pradesh

Field investigation was carried out during pre kharif seasons of 2009 and 2010 at ICAR, Research Complex NEH Region, Arunachal Pradesh Centre, Basar to develop integrated weed management for blackgram (Vigna mungo L.) var. ‘PU-31’ with pre plant incorporation of fluchloralin @ 1.5 lit/ha, pre-emergence application of pendimethalin @ 1.5 lit/ha and hand weeding. Pre-emergence application of pendimethalin @ 1.5 lit/ha + one hand weeding on 25 DAS was at par with 2 hand weeding at 15 and 25 DAS in respect of seed yield, net returns and B: C ratio. In weedy check, weeds removed 6 kg N, 2.8 kg P and 7.0 kg K/ha.