Journal of Progressive Agriculture

The present investigation deals with the weed intensity, efficiency and Lentil (Lens culinaris culinaris medicos) yield influenced by different weed management practices. The study was carried out during rabi (winter) season of 2010–11 at the Research Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur. The experiment was laid out in randomized block design with three replications and 12 treatments of weed management which included quizalofop-p-ethyl, imazethapyr, pendimethalin, chlorimuron ethyl alone or in combination. In addition to these weedicidal treatments, stale seed bed, lentil+ linseed and lentil+ mustard were also included in the treatments. In the experimental field, Chenopodium album, Euphorbia hirta, Melilotus alba, Anagallis arvensis, Xanthium strumarium and Cyperus rotundus were the dominant weeds and were found throughout the crop growth period. Results revealed that maximum yield attributes i.e. number of pods plant⁻¹, number of seeds plant⁻¹, number of seeds pod⁻¹,100 seed weight, seed yield, stover yield, harvest index and weed index and the lowest dry matter production of weeds and the highest weed control efficiency (WCE) were obtained under hand weeding twice at 20 and 40 DAS, followed by pendimethalin applied as PE @ 1.0 kg a.i. ha⁻¹ + imazethapyr as PoE @ 37.5 g a.i. ha⁻¹ at 20 and 35 DAS. Intercropping of lentil + linseed (1:1 additive series) and lentil + mustard (1:1 additive series) had produced at par lentil equivalent yield. The minimum values of above characters were observed under control plot.