تاثیر ﺑﺮﻫﻤﮑﻨﺶ ارﺗﻔﺎع و زﻣﺎن ﺑﺮش ﻋﻠﻮﻓﻪ ﺑﺮ روی عملکرد ﻋﻠﻮﻓﻪ وداﻧﻪ ﺟﻮ ﺑﺪون ﭘﻮﺷﯿﻨﻪ در ﺷﺮاﯾﻂ اﻗﻠﯿﻤﯽ ﮔﺮﮔﺎن

Effect of height and cutting time on forage and grain yield of hull less barely in Gorgan climatic condition