AMIRI KHORIE, M. M. .; MORADPOOR, S. .; RANJI, A. .; KARIMI, B. .; GOLDOUST KHORSHIDI, M. . Effect of different levels of nitrogen fertilizer and plant density on yield and yield components of canola. Scientific Journal of Crop Science, v. 3, n. 10, p. 109-114, 29 Oct. 2014.