TODAR MAL POONIA*, SUSHIL KUMAR SINGH, ANKUR CHAUDHARY AND V. S. HOODA
Department of Agronomy, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
CCS Haryana Agricultural University, Regional Research Station, Uchani, Karnal (Haryana), India
*(e-mail : todarmal.poonia6@gmail.com)
(Received : 05 May 2022; Accepted : 15 June 2022)
SUMMARY
Efficacy of different herbicides in clusterbean was studied at Research Farm, Department of Agronomy, CCS Haryana Agricultural University, Hisar during kharif 2018 and 2019. Digera arvensis, Trianthema portulacastrum, Echinochloa colona and Cyperus rotundus dominated the weed flora of the experimental field. Application of pendimethalin + imazethapyr (RM) at 1000 g/ha resulted in lower weed density, less dry matter accumulation by weeds and provided higher weed control efficiency of 97.6 and 85.8% during 2018 and 2019, respectively followed by pendimethalin + imazethapyr (TM) at 750 + 50 g/ha and pyroxasulfone + pendimethalin 106 + 1000 g/ha (TM). Highest seed yield (1047 kg/ha) was recorded with weed free treatment. Among different herbicides, pendimethalin + imazethapyr (RM) at 1000 g/ha resulted in more pods/plant, taller plants and higher seed yield (907 kg/ha) followed by pendimethalin + imazethapyr (TM) at 750 + 50 g/ha (887 kg/ha) as pre-emergence application. Weedy conditions resulted in more than 60% reduction in seed yield as compared to weed free
Key words: Clusterbean, Herbicides, pre-emergence, weed control efficiency and seed yield