%0 Journal Article %A Abedian, H., Farnia, A., Mostafavi Rad, M. %T Effects of chemical nitrogen fertilizer sources on seed yield and some agronomic characteristics of winter rapeseed cultivars (Brassica napus L.) in Arak (Iran) %J New Finding in Agriculture %V 6 %N 24 %P 351-364 %D 2012 %R %U https://sanad.iau.ir/fa/Article/1086571