Integrated Weed Management in Asgandh (Withania somnifera Dunal)

The highest weed control efficiency (96.7%). dry root yield (558 kg ha⁻¹), seed yield (506 kg ha⁻¹) and net profit (Rs. 18,450 ha⁻¹) were recorded with three weedings at 20, 40 and 60 days after sowing (DAS), followed by pre-emergence application of isoproturon at 0.50 kg ha⁻¹+weeding at 45 DAS which was followed by glyphosate at 1.0 kg ha⁻¹+weeding at 45 DAS. Unchecked weed growth caused 57.2% loss in dry root yield and 53.6% loss in seed yield of asgandh. Higher doses of isoproturon (0.75 kg ha⁻¹) and glyphosate (1.5 kg ha⁻¹) gave 8.6 and 13.4% phytotoxicity tel asgandh crop, respectively.