Effect of post-emergence herbicides on weeds, yield and economics of kharif blackgram (Vigna mungo L.)

An experiment was conducted to evaluate post emergenece herbicides in urdbean crop during Kharif season of 2021–22. Two-hand weeding practices at 20 and 40 DAS, had significantly lower values of dry matter (DM) of different weeds. Application of Imazethapyr 35% + Imazamox 35%WG 70g (T₁) recorded significantly lower weed dry matter (g/plant), and higher weed control effieincy (WCE), and remained statistically at par with Sodium Acifluorfen 16.5% 80g +Clodinafop-propargyl 8% EC 165g (T₄). Significantly higher grain (1088.91 kg/ha) and stover yields (1442.46 kg/ha) were recorded in T₁, compared to others. Imazethapyr 35% SL +Imazamox 35% WG 70g ha⁻¹ POE is recommended on behalf of higher WCE and superior grain yield and economics i.e., Net return and BCR in blackgram.