1Agricultural Research Station, Agriculture University, Kota, Rajasthan324001, India
2Rajasthan College of Agriculture, (MPUAT), Udaipur, Rajasthan313004, India
3Uttar Banga Krishi Vishwavidyalaya, Cooch Behar, West Bengal736101, India
Rajasthan Agricultural Research Institute, Durgapura, Jaipur, Rajasthan302018, India
*Corresponding author email: bharatmeena447@gmail.com
Online Published on 08 August, 2022.
A field experiment was conducted at Agricultural Research Station, Ummedganj, Kota, Rajasthan during rainy (Kharif) season, 2019 to study the comparative efficacy of pre-and post-emergence herbicides in managing weeds and improving productivity of soybean (Glycine max L. Merrill). The experimental field was infested with grassy weeds (48.60%), broadleaved weeds (39.49%) and sedges (11.91%). Cynodon dactylon (L.) Pers., Eleusine indica (L.) Gaertn., Echinochloa crus-galli (L.) Beauv and Echinochloa colona (L.) Link among grassy weeds, Boerhavia diffusa L. nom. cons., Convolvulus arvensis L., Commelina benghalensis L., Digera arvensis Forsk., Celosia argentea L. among broad-leaved weeds and Cyperus rotundus L., the sedge were major associated weeds. Maximum soybean seed yield (1800 kg/ha) and higher weed control efficiency (77.79%) were recorded with hand weeding twice at 20 and 40 days after sowing (DAS) followed by postemergence application of sodium-acifluorfen 16.5% + clodinafop-propargyl 8% (premix) 165 + 80 g/ha (1550 kg/ha).
Hand weeding, Herbicides, Soybean, Sodium-acifluorfen + clodinafop-propargyl, Weed management
