Open Access Research Paper Views (789) Evaluation of weeds control methods in form of mechanical and chemical on onion yield Shahram Yazdan Karimi, Bahram Mirshekari J. Biodiv. & Environ. Sci. 6(1), 573-579, January 2015. Keywords: Herbicide, Ioxynil, Oxadiazon, Oxyfluorfen, Sethoxydim Details