RELATIVE EFFICIENCY OF PRE-EMERGENCE HERBICIDES ON WEED DYNAMICS, YIELD, AND ECONOMICS OF PEARL MILLET (PENNISETUM GLAUCUM L.)Harish D.C. , Pradeep Kumar Kanaujiya, Pradeep Rajput, Jaidev Sharma and Awadhesh KishoreAbstract A field experiment was conducted at the Crop Research Centre, School of Agriculture, ITM University, Gwalior (M.P.) during the Kharif season in 2022. The experiment was conducted with a Randomized Block Design and replicated thrice and comprised of twelve treatments. The herbicides were used individually as well as in combinations viz; T1 to T12 the crop was infested with the different types of weed flora. Ex; Digitarias anguinalis L. and Echinochloa crusgalli L. of grassy, Digera arvensis L. and Commelina benghalensis L. of Broad-leaved and Cyperus rotundus L. of the sedges group. Weed density of the different weed species and total weeds affected significantly due to different weed management practices. The result indicated that the total weed population and its dry weight, and weed index were lower with Atrazine (50 % WP) at 1000 g ha-1 (PE). However, the higher weed control efficiency was recorded with Atrazine (50 % WP) at 1000 g ha-1 (PE), found at par with Atrazine (50% WP) at 750 g ha-1. Yield attributes and yield like number of tillers per plant, ear head weight per plant, Test weight, Grain yield, Straw yield and Harvest Index were significantly higher with Atrazine (50 % WP) at 1000 g ha-1 (PE). The maximum net returns and B:C ratio were recorded higher with Atrazine @ 1.0 g ha-1 (at 3 DAS). |