اﺛﺮ ﻗﻄﻊ آﺑﯿﺎری و ﻧﯿﺘﺮوژن ﺑﯿﻮﻟﻮژﯾﮏ روی ﻣﻮرﻓﻮﻟﻮژی و ﻋﻤﻠﮑﺮد ﮔﻞﺧﺸﮏ ﮔﯿﺎه داروﯾﯽ ﻫﻤﯿﺸﻪﺑﻬﺎر

Effect of irrigation withhold and biological nitrogen on morphology and yield of dried flower of Calendula officinalis