1Research Scholar, Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741 252
2Professor, Department of Agronomy, Rajendra Agricultural University, Pusa, Samastipur, Bihar, 848 125
3Professor, Department of Agronomy, Rajendra Agricultural University, Pusa, Samastipur, Bihar, 848 125
4Research Scholar, Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, 741 252
Tirhut College of Agriculture, Rajendra Agricultural University, Dholi, Muzaffarpur, Bihar, 843 105
*Corresponding author Email: adyant.pusa@gmail.com
Online published on 8 September, 2016.
A field experiment was conducted during the winter (rabi) season of 2012–13 and 2013–14, to study the effect of integrated weed management on weeds, nutrient removal and seed yield of lentil (Lens culinaris Medikus) on calcareous alluvial soils of Bihar. The experiment was laid out in a randomized block design comprising of nine weed control treatments with four replications. The results revealed that lesser weed density, weed dry matter, higher weed control efficiency and lower weed index were observed under integrated weed management (IWM) practices of pendimethalin 300 g/ha as pre-emergence (PRE) + hand weeding (HW) at 40 days after sowing (DAS) and with ready mixed application of pendimethalin 205 g/ha + imazethapyr 14 g/ha as PRE. Higher crop growth, seed yield and yield attributing characters were found with the integrated treatment of pendimethalin 300 g/ha as PRE + HW at 40 DAS and pendimethalin 205 g/ha + imazethapyr 14 g/ha as PRE. The higher net returns and benefit: cost ratio was acquired with pendimethalin 205 g/ha + imazethapyr 14 g/ha as PRE.
Herbicide, Integrated weed management, Lentil, Nutrient removal by weeds
