Growth and Nodulation of Urdbean Under Different Weed Management Strategies

A field experiment was conducted at Mechanized Agriculture Farm, Department of Agronomy, College of Agriculture, Ummedganj (Agricultural University, Kota) during kharif, 2023 to study the comparative efficacy of mechanical and herbicidal weed management practices in managing weeds and improving growth and nodulation of Urdbean [Vigna mungo (L.) Hepper]. Experiment was laid out in Randomized Block Design with ten treatment combinations with three replications. which includes Pendimethalin 30 EC @ 1.0 kg a.i./ha Pe, Pendimethalin 30 EC + Imazethapyr 2 EC @ 0.75 kg a.i./ha PE, Imazethapyr 10 SL @ 55 g a.i./ha at 15-20 DAS, Clodinafop Propargyl 8 EC+Sodium-Aciflurofen 16.5 EC (Ready mix) @187.5 g a.i./h at 15-20 DAS, Fomesafen 11.1% + Fluzaifop-p butyl 11.1% SL (Ready mix) @ 220 g a.i./ha at 15-20 DAS (POE), Fluazifop-P-Butyl 13.4% EC @ 250 g a.i./ha at 15-20 DAS (POE), Mechanical weeding at 20 and 40 DAS, two hand weeding at 20 and 40 DAS, one hand weeding at 20 DAS and weedy check. Results revealed that Two hand weeding at 20 and 40 DAS significantly improved the plant height (50.30 cm), dry matter accumulation (117.51 g/mrl), number of nodules/plant (26.83), dry weight of nodules (41.49 mg/plant) of urdbean than rest of treatments.