TY - JFULL AU - M. Rezvani and M. Ahangari and F. Zaefarian PY - 2012/10/ TI - Effect of Cultivars and Weeding Regimes on Soybean Yields T2 - International Journal of Agricultural and Biosystems Engineering SP - 713 EP - 716 VL - 6 SN - 1307-6892 UR - https://publications.waset.org/pdf/11458 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 69, 2012 N2 - To study the performance of soybean (Glycine max L.) cultivars in varying weeding regimes, a field experiment was conducted in 2010. The experiment was split plot in a randomized complete block design with 3 replicates. The four cultivars and two lines of soybean including: Sahar, Hill, Sari, Telar, 032 and 033 in main plot and weeding regime consist of no weeding (control), one weeding (35 days after planting) and two weeding (35+20 days after planting) were randomized in sub plot. In weed infested plots inevitably had the highest yield reduction in all varieties. On the other hand, plots weeded twice showed the best performance for all cultivars and lines. Although 033 had the highest yield over weeding regimes, but Hill was the best cultivar in suppression of weeds, which indicated the competitiveness of this cultivar. Double weeding, with the use of competitive soybean cultivars would be an effective approach for producing yield. ER -