ﺑﺮرﺳﯽ ﻣﯿﺰان ﺑﻬﯿﻨﻪ ﺑﺬر ارﻗﺎم ﺟﻮ در ﺳﯿﺴﺘﻢ ﻫﺎي ﻣﺨﺘﻠﻒ ﺧﺎك ورزي در ﻣﻨﻄﻘﻪ ﮔﺮم اﺳﺘﺎن ﮐﺮﻣﺎﻧﺸﺎه

Study on optimum seeding rate of barley varieties under different tillage systems in warm area of Kermanshah province

اﯾﻦ ﺗﺤﻘﯿﻖ در ﻣﻨﻄﻘﻪ ﮔﺮم اﺳﺘﺎن ﮐﺮﻣﺎﻧﺸﺎه در ﺳﺎل زراﻋﯽ 1396-97 اﺟﺮا ﺷﺪ. در اﯾﻦ آزﻣﺎﯾﺶ ﺗﯿﻤﺎرﻫﺎي ﻣﺨﺘﻠﻒ ﻣﯿﺰان ﺑﺬر، رﻗﻢ و ﺳﯿﺴﺘﻢ ﺧﺎك ورزي در ﮐﺮت ﻫﺎي ﺑﺰرگ ﺑﻪ ﺷﺮح ذﯾﻞ ﺑﺮرﺳﯽ ﺷﺪﻧﺪ: اﻟﻒ- ﮐﻢ ﺧﺎك ورزي ﺑﺎ رﻗﻢ ﺧﺮم در ﭼﻬﺎر ﻣﯿﺰان ﺑﺬر ﺷﺎﻣﻞ 120، 140، 160 و 180 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر، ب- ﺑﯽ ﺧﺎك ورزي ﺑﺎ رﻗﻢ ﻣﺎﻫﻮر در ﭼﻬﺎر ﻣﯿﺰان ﺑﺬر ﺷﺎﻣﻞ 120، 140، 160 و 180 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر، ج- ﺧﺎك ورزي ﻣﺮﺳﻮم ﺑﺎ ﺟﻮ ﻣﺤﻠﯽ ﺑﺎ دو ﻣﯿﺰان ﺑﺬر ﺷﺎﻣﻞ 160 و 200 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر؛ ﻃﺒﻖ ﻧﺘﺎﯾﺞ ﺑﺪﺳﺖ آﻣﺪه در ﻣﻨﻄﻘﻪ ﮔﺮم اﺳﺘﺎن )ﺳﺮﭘﻞ ذﻫﺎب( ﺑﻄﻮر ﮐﻠﯽ ﺑﺮاي ﺟﻮ ﺗﻔﺎوت ﻣﻌﻨﯽ داري ﺑﯿﻦ ﻣﻘﺎدﯾﺮ ﻣﺨﺘﻠﻒ ﺑﺬر و ﺧﺎك ورزي وﺟﻮد ﻧﺪاﺷﺖ، ﺑﻨﺎﺑﺮاﯾﻦ ﻣﯿﺰان ﺑﺬر ﮐﻤﺘﺮ )120 ﺗﺎ 140 ( ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر، ﺳﯿﺴﺘﻢ ﻫﺎي ﺧﺎك ورزي ﮐﻢ و ﺑﯽ ﺧﺎك ورزي ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﻫﺰﯾﻨﻪ و ﻣﺼﺮف اﻧﺮژي ﮐﻤﺘﺮ ﺗﻮﺻﯿﻪ ﻣﯽ ﺷﻮﻧﺪ.

This research was conducted in Kermanshah province in 2017-18 cropping season. Different treatments of seed rate, variety and tillage system in big plots carried out barley as follow: (a) Minimum tillage with Koram barley variety at four seed rates (120, 140, 160 and 180 kgha-1), (b) no tillage with Mahoor barley variety at four seed rates (120, 140, 160 and 180 kgha-1), and (c) Conventional tillage with local barley variety at two seed rates (160 and 200 kgha-1). According to the Results in warm area of Kermanshah province (Sarpol Zahab) totally for barley studied seed rates and tillage systems didn’t have significant different, so low seed rate (120-140 kgha-1) and no tillage and minimum tillage according to lower cost can be recommended.