ﺑﺮﻫﻢ ﮐﻨﺶ ﻧﻮع، ﻣﻘﺪار و ﺗﻘﺴﯿﻂ ﮐﻮدﻫﺎي ﻧﯿﺘﺮوژﻧﻪ ﺑﺎ ﺗﺮاﮐﻢ ﮐﺸﺖ ﺑﺮ وﯾﮋﮔﯽ ﻫﺎي ﻣﻮرﻓﻮﻓﯿﺰﯾﻮﻟﻮژﯾﮏ، ﻋﻤﻠﮑﺮد و اﺟﺰاي ﻋﻤﻠﮑﺮد ﮐﻠﺰا Brassica napus L در ﻣﻨﻄﻘﻪ ي ششده فسا

Interaction between type, amount and split application of nitrogen fertilizers with plant density on morpho-physiological, yield and yield components characteristics of rapeseed (Brassica n apus L.) in Sheshdeh region, Fasa

ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺑﺮﻫﻢ ﮐﻨﺶ ﻧﻮع، ﻣﻘﺪار و ﺗﻘﺴﯿﻂ ﮐﻮدﻫﺎي ﻧﯿﺘﺮوژﻧﻪ ﺑﺎ ﺗﺮاﮐﻢ ﮐﺸﺖ ﺑﺮ وﯾﮋﮔﯽ ﻫﺎي ﻣﻮرﻓﻮﻓﯿﺰﯾﻮﻟﻮژﯾﮏ، ﻋﻤﻠﮑﺮد و اﺟﺰاي ﻋﻤﻠﮑﺮد ﮐﻠﺰا آزﻣﺎﯾﺸﯽ در ﺳﺎل زراﻋﯽ 1397-1398 در ﻣﻨﻄﻘﻪ ي ﺷﺸﺪه ﺷﻬﺮﺳﺘﺎن ﻓﺴﺎ اﺟﺮا ﺷ.ﺪ آزﻣﺎﯾﺶ ﻫﺎ ﺑﻪ ﺻﻮرت ﻓﺎﮐﺘﻮرﯾﻞ در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮك ﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺗﮑﺮار اﺟﺮا ﮔﺮدﯾﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ اﺛﺮ ﮐﻮد ﺑﺮ ﺗﻌﺪاد ﺧﻮرﺟﯿﻦ در ﺷﺎﺧﻪ ﻓﺮﻋﯽ و در ﺑﻮﺗﻪ در ﺳﻄﺢ 5 درﺻﺪ ﻣﻌﻨﯽ دار ﺑﻮد و اﺛﺮ ﺗﺮاﮐﻢ ﮐﺎﺷﺖ ﺑﺮ وزن ﻫﺰارداﻧﻪ، ﻋﻤﻠﮑﺮد ﺑﯿﻮﻟﻮژﯾﮏ، ﻋﻤﻠﮑﺮد داﻧﻪ و ﻋﻤﻠﮑﺮد روﻏﻦ در ﻣﻌﻨﯽ دار ﺷﺪ. اﺳﺘﻔﺎده از ﺳﻮﻟﻔﺎت آﻣﻮﻧﯿﻮم )زﯾﺮ ﺗﻮﺻﯿﻪ ﮐﻮدي( در ﻣﺮاﺣﻞ ﺳﺎﻗﻪ دﻫﯽ و ﻏﻨﭽﻪ دﻫﯽ ﺑﯿﺸﺘﺮﯾﻦ ﺗﻌﺪاد ﺧﻮرﺟﯿﻦ در ﺷﺎﺧﻪ ﻓﺮﻋﯽ )48/6 ﻋﺪد در ﻫﺮ ﺷﺎﺧﻪ ﻓﺮﻋﯽ( و ﺗﻌﺪاد ﺧﻮرﺟﯿﻦ در ﻫﺮ ﺑﻮﺗﻪ )73/5 ﻋﺪد در ﺑﻮﺗﻪ( را داﺷﺖ. ﺑﯿﺸﺘﺮﯾﻦ ﻋﻤﻠﮑﺮد ﺑﯿﻮﻟﻮژﯾﮏ و داﻧﻪ ) ﺑﻪ ﺗﺮﺗﯿﺐ 12840 و 4258ﮐﯿﻠﻮﮔﺮم در ﻫﮑﺘﺎر( در ﺗﺮاﮐﻢ ﮐﺎﺷﺖ 50 ﺑﻮﺗﻪ در ﻣﺘﺮ ﻣﺮﺑﻊ ﺑﻪ دﺳﺖ آﻣﺪ. ﺗﺮاﮐﻢ 50 و 70 از ﻧﻈﺮ ﻋﻤﻠﮑﺮد داﻧﻪ ﺗﻔﺎوت ﻣﻌﻨﯽ داري ﺑﺎ ﻫﻢ ﻧﺪاﺷﺘﻨﺪ. ﺑﻨﺎﺑﺮاﯾﻦ ﺗﺮاﮐﻢ 50 ﺑﻮﺗﻪ در ﻣﺘﺮ ﻣﺮﺑﻊ و اﺳﺘﻔﺎده از ﺳﻮﻟﻔﺎت آﻣﻮﻧﯿﻮم در ﻣﺮاﺣﻞ ﺳﺎﻗﻪ دﻫﯽ و ﻏﻨﭽﻪ دﻫﯽ ﺑﯿﺸﺘﺮﯾﻦ ﻋﻤﻠﮑﺮد ﮐﻠﺰا را ﺑﻪ ﻫﻤﺮاه داﺷﺖ.

In order to investigate the interaction of type, amount and division of nitrogen fertilizers with crop density on morphophysiological characteristics, yield and yield components of rapeseed, a field experiment was conducted in the sixth district of Fasa, 1379-1398. Experiments were carried out as a factorial experiment in a randomized complete block design with three replications. The results showed that the effect of fertilizer on number of pods per branch and per plant was significant at 5% level and the effect of planting density on 1000 seed weight, biological yield, seed yield and oil yield was significant. Ammonium sulfate (following fertilizer recommendation) had the highest number of pods per branch (48.6 pcs per branch) and pods per plant (73.5 pcs per plant) in the shoot and bud stages. The highest biological and grain yield (12840 and 4258 kg / ha, respectively) were obtained at planting density of 50 plants / m 2. Densities of 50 and 70 were not significantly different in grain yield. Therefore, the density of 40 plants / m 2 and the use of ammonium sulphate in the shoot and bud stages had the highest yield of rapeseed.