%0 Conference Proceedings %T The effects of nitrogen rates on growth and yield of calundula (Calendula officinalisL.) %A عبداله ملافیلابی %A Khorramdel, Soroor %A قاسم حسینی %A هادی شوریده %A Asadi, Ghorban Ali %J 13th International Congress of the Society for Ethnopharmacology %D 2012