ﻣﻘﺎﯾﺴﻪ زﻣﺎنﻫﺎی ﻣﺨﺘﻠﻒ ﻣﺼﺮف ﻣﺎﻟﭻﻫﺎی ﺳﻮرﮔﻮم و ﮔﻨﺪم ﺑﺮ ﺗﺮاﮐﻢ ﻋﻠﻒﻫﺎیﻫﺮز و ﻋﻤﻠﮑﺮد داﻧﻪ ﮐﺘﺎن روﻏﻨﯽ

Comparison of various application time of sorghum and wheat mulch on weeds density and grain yield of linseed