بررﺳﯽ ﺻﻔﺎت زراﻋﯽ ارﻗﺎم آﻓﺘﺎﺑﮕﺮدان ﺗﺤﺖ ﺗﺄﺛﯿﺮ ﺗﺎرﯾﺦ ﻫﺎی ﻣﺨﺘﻠﻒ ﮐﺎﺷﺖ در ﺳﯿﺴﺘﻢ ﮐﺸﺖ دوﮔﺎنه

Evaluation of agronomic properties of different sunflower cultivars affected by planting dates indoubl croppin