Efficacy of Maister OD (Foramsulfuron + Idosulfuron) a New Herbicide in Controlling Weeds of Corn Fields

To evaluate the efficacy of a new herbicide Foramsulfuron ⇚Ⲻ埮꺉 (Maister OD) against other herbicides in corn fields, this experiment was fulfielld in 2010 at Mahidasht, Research Center of Agriculture and Natural Resources of Kermanshah, Iran. It was concucted in randomized complete block design with four replications and 11 treatments. In this experiment, three doses of herbicides (38.75, 46.5 and 54.25 g/ha) including foramsulfuron idosulfuron along with Nicusulfuron, ForamSulfuron, Rimsulfuron, Foramsulfuron Rimsulfuron , Bromicid hand weeding narrow leaf weeds, Bromicid Nicusulfuron and U46 hand weeding of narrow leaf weeds and a complete weeding as the control treatments were investigated. Weeds present in the field were Xanthium stromarium,Chenopedium album, Portulaca oleracea, Sorgum halepense and Setaria virdis. The results of this study showed that doses 38.75 and 46.5 g/ha of herbicide foramsulfuron idosulfuron after treatments of Bromicid Nicusulfuron and, Bromicid narrow leaf weed, hand weeding respectively could control 90 and 86 % of weeds in corn field and increase its yields significantly. Because there are presently few registered herbicide available in Iran, necessity of finding proper herbicides to control weeds in corn field and based on the results oblained from this experiment it seems using 46.5 and 38-75 grams per hectare respectively of foramsulfuron idosulfuron could be a better option than other herbicides to control weeds in corn fields and increase its seed yield.