Abstract
A field experiment was conducted during the rainy (kharg season of 1992 and 1003 a1 Ijorapani, to study the effect of seed rate and weed-control treatments on the weed growth and pod yield of groundnut (Arachis hypogaea L.). Higher seed rate (I00 kg kernelha) significantly rcduccd the weed population and dry weight of weeds compared with the lower seed rate (70 kg kemcl/he) and c~lhanced the pod yield. Two hand-weedings and pendimethalin @ 1 kgha with 1 hand-weeding at 40 days were equally effective reducing weed population, dry weight of weeds and boosting up thc pod yield to the extent of 24.95 and 23.65 q h a respectively. The latter treatment was statistically at par with pre emergence application of butachlor @ Ikg/ha. with one hand weeding. However, the clicniicals + -- mechanical weeding was statistically inferior to those of supplemented with 1 Iiend-wccdi~ig. The -- maximum net returns (Rs. 17,540ha) were registered with pendimethalin @ I kglha + I II;III~-weeding, followed by butachlor @ I kg/ha+ 1 hand weeding (Rs. 16,790ha).
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