ﺑﺮرﺳﯽ اﺛﺮ ﺳﻄﻮح ﻣﺨﺘﻠﻒ ﮐﻮد ﻧﯿﺘﺮوژﻧﻪ و ﺗﺮاﮐﻢ ﺑﻮﺗﻪ ﺑﺮ ﺑﺮﺧﯽ ﺻﻔﺎت ﮐﻤﯽ و ﮐﯿﻔﯽ ﺟﻮ Hordeum vulgare L

Effect of different levels of nitrogen fertilizer and plant density on some quantitative and qualitative traits of barley (Hordeum vulgare L.) in climatic conditions of Shoosh city

اﯾﻦ آزﻣﺎﯾﺶ ﺑﻪ ﻣﻨﻈﻮر ﺗﻌﯿﯿﻦ ﻣﯿﺰان ﮐﻮد ﻧﯿﺘﺮوژﻧﻪ ﻣﻮرد ﻧﯿﺎز و ﺗﺮاﮐﻢ ﺑﻮﺗﻪ ﻣﻨﺎﺳﺐ ﺟﻮ در ﻣﺰرﻋﻪ ﺗﺤﻘﯿﻘﺎﺗﯽ داﻧﺸﮕﺎه ﭘﯿﺎم ﻧﻮر ﺷﻮش در ﺳﺎل زراﻋﯽ 1396 اﻧﺠﺎم ﺷﺪ. آزﻣﺎﯾﺶ ﺑﻪ ﺻﻮرت ﻓﺎﮐﺘﻮرﯾﻞ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮكﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ در ﺳﻪ ﺗﮑﺮار اﻧﺠﺎم ﮔﺮﻓﺖ. در اﯾﻦ ﺑﺮرﺳﯽ ﻓﺎﮐﺘﻮرﻫﺎ ﺷﺎﻣﻞ ﮐﻮد ﻧﯿﺘﺮوژﻧﻪ در ﺳﻪ ﺳﻄﺢ 60،40 و 80 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر )ﺑﺮ اﺳﺎس ﺗﻮﺻﯿﻪ ﻧﯿﺎز ﮐﻮدي ﺧﺎك ﻣﺰرﻋﻪ( و ﺗﺮاﮐﻢ ﺑﻮﺗﻪ در ﺳﻪ ﺳﻄﺢ 250، 500 و 750 داﻧﻪ در ﻧﻈﺮ ﮔﺮﻓﺘﻪ ﺷ.ﺪ ﺻﻔﺎت ﻣﻮرد ﺑﺮرﺳﯽ ﺷﺎﻣﻞ ارﺗﻔﺎع ﺑﻮﺗﻪ، ﻃﻮل ﺧﻮﺷﻪ، ﻋﻤﻠﮑﺮد داﻧﻪ و ﺑﯿﻮﻟﻮژﯾﮑﯽ، ﺷﺎﺧﺺ ﺑﺮداﺷﺖ، وزن ﻫﺰار داﻧﻪ و ﭘﺮوﺗﺌﯿﻦ داﻧﻪ ﺑﻮد. ﻧﺘﺎﯾﺞ ﺗﺠﺰﯾﻪ وارﯾﺎﻧﺲ داده ﻫﺎي ﺻﻔﺎت ﻧﺸﺎن داد ﮐﻪ اﺛﺮ ﺳﻄﻮح ﻣﺨﺘﻠﻒ ﮐﻮد ﻧﯿﺘﺮوژﻧﻪ ﺑﺮ ﺻﻔﺎت ﻋﻤﻠﮑﺮد داﻧﻪ و ﺑﯿﻮﻟﻮژﯾﮑﯽ، ﺷﺎﺧﺺ ﺑﺮداﺷﺖ، ﭘﺮوﺗﺌﯿﻦ داﻧﻪ؛ اﺛﺮ ﺳﻄﻮح ﻣﺨﺘﻠﻒ ﺗﺮاﮐﻢ ﺑﻮﺗﻪ ﺑﺮ ﺻﻔﺎت ﺗﻌﺪاد ﭘﻨﺠﻪ، ﻃﻮل ﺧﻮﺷﻪ، ﻋﻤﻠﮑﺮد داﻧﻪ و ﺑﯿﻮﻟﻮژﯾﮑﯽ، ﺷﺎﺧﺺ ﺑﺮداﺷﺖ، وزن ﻫﺰار داﻧﻪ، ﭘﺮوﺗﺌﯿﻦ داﻧﻪ و اﺛﺮ ﻣﺘﻘﺎﺑﻞ ﮐﻮد ﻧﯿﺘﺮوژن × ﺗﺮاﮐﻢ ﺑﺮ ﺻﻔﺎت ﻋﻤﻠﮑﺮد داﻧﻪ و ﺑﯿﻮﻟﻮژﯾﮑﯽ، ارﺗﻔﺎع ﺑﻮﺗﻪ، ﭘﺮوﺗﺌﯿﻦ داﻧﻪ و ﻃﻮل ﺧﻮﺷﻪ ﻣﻌﻨﯽ دار ﺑﻮد. ﺑﯿﺸﺘﺮﯾﻦ ﭘﺮوﺗﺌﯿﻦ داﻧﻪ، ارﺗﻔﺎع ﺑﻮﺗﻪ، ﻋﻤﻠﮑﺮد داﻧﻪ، ﺗﻌﺪاد ﭘﻨﺠﻪ در ﻣﺘﺮﻣﺮﺑﻊ و ﻋﻤﻠﮑﺮد ﺑﯿﻮﻟﻮژﯾﮑﯽ در ﺳﻄﺢ ﮐﻮد ﻧﯿﺘﺮوژﻧﻪ 80 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر و ﺗﺮاﮐﻢ ﺑﻮﺗﻪ 750 ﺑﻪ دﺳﺖ آﻣﺪ. ﺑﯿﺸﺘﺮﯾﻦ ﭘﺮوﺗﺌﯿﻦ داﻧﻪ در ﺳﻄﺢ ﮐﻮد ﻧﯿﺘﺮوژﻧﻪ 80 ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر و ﺗﺮاﮐﻢ ﺑﻮﺗﻪ 750 ﺑﻪ دﺳﺖ آﻣﺪ.

This experiment was conducted to determine the amount of nitrogen fertilizer required and appropriate plant density of barley at the research field of Payam Noor Shoosh University in 1396. The experiment was conducted as a factorial experiment in a randomized complete block design with three replications. In this study, factors including nitrogen fertilizer at three levels of 60.40 and 80 kg ha-1 (as recommended by field soil fertilizer recommendation) and plant density at three levels of 250, 500 and 750 grains were considered. The studied traits included plant height, panicle length, grain and biological yield, harvest index, 1000-grain weight and grain protein. Results of analysis of variance showed that the effect of different levels of nitrogen fertilizer on grain and biological yield traits, harvest index, grain protein; effect of different levels of plant density on tiller number, panicle length, grain and biological yield, harvest index, thousand weight Seed, grain protein and nitrogen fertilizer interactions; density were significant on grain yield and biological yield, plant height, grain protein and panicle length. The highest grain protein, plant height, grain yield, tiller number per m2 and biological yield were obtained at 80 kg N ha-1 and 750 plant density. The highest grain protein was obtained at nitrogen fertilizer level of 80 kg ha-1 and plant density of 750.