ﺑﺮرﺳﯽ ﺗﺎﺛﯿﺮ ﮐﻮد ﻧﯿﺘﺮوژن و ﺗﺮاﮐﻢ ﺑﺮ ﭘﺮوﻓﯿﻞ ﺷﺎﺧﺺ ﺳﻄﺢ ﺑﺮگ و ﺗﻮزﯾﻊ ﻧﯿﺘﺮوژن در ﮐﺎﻧﻮﭘﯽ ﮔﯿﺎه داروﯾﯽ ﻫﻤﯿﺸﻪ ﺑﻬﺎر(.Calendula Officinalis L)

Effect of nitrogen fertilizer and density on profiles of leaf area index and canopy nitrogen distribution in Pot marigold (Calendula officinalis .)