اثر ﻣﺤﻠﻮل ﭘﺎﺷﯽ ﺳﻮﻟﻔﺎت روی و ﺳﻮﻟﻔﺎت ﻣﻨﮕﻨﺰ ﺑﺮ ﻋﻤﻠﮑﺮد و اﺟﺰای ﻋﻤﻠﮑﺮد ﺳﻪ رﻗﻢ ﮐﻠﺰای ﭘﺎﺋﯿﺰه در ﮔﯿلان

Effect of zinc sulfate and manganese sulfate foliar application on yield and yield components of three cultivars of autumn canola in Gilan