Field experiments were conducted during kharif seasons of 200 I and 2002 at Instructional Farm, Rajasthan College of Agriculture, MPUAT, Udaipur. Results indicated that variety JS-335 produced significantly higher grain yield (16.09 q ha") than JS 71-05 and NRC-37, though there existed no significant variation among varieties, when judged in terms of weed density and dry matter. Crop geometries (30 cm x 10 cm and 20 cm x 15 cm) did not show any significant effect on weeds as well as on crop. Pre-emergence application of clomazone at 1.0 kg ha" reduced the population of Echinochloa colona, Cynodon dactylon, Cyperus rotundus, Trianthema portulacastrum, Parthenium hysterophorus and Commelina benghalensis. while post-emergence herbicide fenoxaprop-p-ethyl at 75 g ha" (at 20 DAS) was effective against E. colona and C. dactylon only. Both the herbicides failed to control Amaranthus spinosus and Digera arvensis. Two hand weedings (at 20 and 40 DAS) and c1omazone at 1.0 kg ha" pre-emergence+HW (at 40 DAS) were found most appropriate treatments, when judged in terms of reducing total weed density and dry matter, and increasing soybean grain yield.