Assessment of Post-Emergence Herbicides for Improving the Yield of Mungbean [Vigna radiata (L.) Wilczek]

Mungbean (Vigna radiata L. Wilczek) is an important pulse crop contributing to food, nutritional security, and soil fertility through biological nitrogen fixation. However, weed infestation remains a major constraint limiting its productivity. A field experiment entitled "Assessment of Post-Emergence Herbicides for Improving Growth and Yield of Mungbean" was conducted during the kharif season of 2025 at Vivekananda Global University, Jaipur, Rajasthan, to evaluate the efficacy of different post-emergence herbicides. The experiment was laid out in a Randomized Block Design with eight weed management treatments and three replications. Results revealed that post-emergence herbicides significantly reduced weed density and weed dry matter compared with the weedy check. Among the treatments, fomesafen + fluazifop-p-butyl @ 220 g ha⁻¹ recorded the most effective weed control, followed by sodium acifluorfen + clodinafop-propargyl @ 210 g ha⁻¹. Superior weed suppression resulted in improved crop growth, yield attributes, and yield. Fomesafen + fluazifop-p-butyl produced the highest grain yield (1254 kg ha⁻¹), stover yield (2094 kg ha⁻¹), and biological yield (3347 kg ha⁻¹) among herbicidal treatments, closely followed by sodium acifluorfen + clodinafop-propargyl. The enhanced performance was attributed to broad-spectrum control of both grassy and broad-leaved weeds, reducing crop–weed competition during critical growth stages. The study concluded that fomesafen + fluazifop-p-butyl @ 220 g ha⁻¹ is an effective post-emergence herbicide option for improving weed management, growth, and productivity of mungbean under semi-arid conditions of Rajasthan.