كليدواژه :
علوفه , صفات مورفولوژيك , ماده خشك , راندمان , زراعت
چكيده فارسي :
ﺑﻪﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺗﺄﺛﯿﺮات ﺗﺎرﯾﺦ ﮐﺸﺖ و دور آﺑﯿﺎري ﺑﺮ ﻋﻤﻠﮑﺮد ﮐﻤﯽ و ﮐﯿﻔﯽ ارزن ﻧﻮﺗﺮﯾﻔﯿﺪ، آزﻣﺎﯾﺸﯽ ﺑﻪﺻﻮرت ﮐﺮتﻫﺎي ﺧﺮدﺷﺪه در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮك ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺗﮑﺮار در ﭼﻬﺎر ﺗﺎرﯾﺦ ﮐﺸﺖ )ﯾﮏ ﺧﺮداد، 12 ﺧﺮداد، 23 ﺧﺮداد، ﺳﻮم ﺗﯿﺮ( و ﺳﻪ دور آﺑﯿﺎري )8، 11و 14روز( در ﻣﺰرﻋﻪ آﻣﻮزﺷﯽ- ﺗﺤﻘﯿﻘﺎﺗﯽ داﻧﺸﮑﺪه ﮐﺸﺎورزي ﻧﯿﺸﺎﺑﻮر در ﺳﺎل زراﻋﯽ 1397-98اﻧﺠﺎم ﮔﺮﻓﺖ. ﻣﺤﺼﻮل ﻋﻠﻮﻓﻪ ﭼﯿﻦ اول و دوم، از ﻧﻈﺮ ﺻﻔﺎت ﮐﻤﯽ )ﻋﻤﻠﮑﺮد ﻋﻠﻮﻓﻪ ﺗﺮ و ﺧﺸﮏ، ﻧﺴﺒﺖ ﺑﺮگ ﺑﻪ ﺳﺎﻗﻪ، ﺗﻌﺪاد ﭘﻨﺠﻪ در ﺑﻮﺗﻪ در ﻣﺘﺮﻣﺮﺑﻊ( و وﯾﮋﮔﯽﻫﺎي ﮐﯿﻔﯽ )ﻣﻘﺪار ﭘﺮوﺗﺌﯿﻦ ﮐﻞ، درﺻﺪ ﺧﺎﮐﺴﺘﺮ( ارزﯾﺎﺑﯽ ﺷﺪﻧﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﺑﺎ ﮐﺎﻫﺶ ﻓﺎﺻﻠﻪ دور آﺑﯿﺎري، ﻋﻤﻠﮑﺮد ﻋﻠﻮﻓﻪ ﺗﺮ در واﺣﺪ ﺳﻄﺢ، اﻓﺰاﯾﺶ ﯾﺎﻓﺖ. ﺑﺎ ﺗﺄﺧﯿﺮ در ﮐﺎﺷﺖ، ﻋﻤﻠﮑﺮد ﻋﻠﻮﻓﻪ ﺗﺮ در واﺣﺪ ﺳﻄﺢ ﮐﺎﻫﺶ ﯾﺎﻓﺖ. ﺑﺎ ﮐﺎﻫﺶ ﺗﻌﺪاد ﭘﻨﺠﻪ در ﭼﯿﻦ دوم، درﺻﺪ ﭘﺮوﺗﺌﯿﻦ و درﺻﺪ ﺧﺎﮐﺴﺘﺮ اﻓﺰاﯾﺶ ﯾﺎﻓﺖ؛ زﯾﺮا ﺑﺎﻋﺚ اﻓﺰاﯾﺶ ﻧﺴﺒﺖ ﺑﺮگ در ﺳﺎﻗﻪ ﺷﺪ. ﺑﺎ اﻓﺰاﯾﺶ دور آﺑﯿﺎري، ﻣﺎده ﺧﺸﮏ ﮐﻞ، درﺻﺪ ﭘﺮوﺗﺌﯿﻦ، ﺗﻌﺪاد ﭘﻨﺠﻪ در ﺑﻮﺗﻪ، وزن ﺗﺮ ﺳﺎﻗﻪ ﮐﺎﻫﺶ ﯾﺎﻓﺖ. ﻫﻤﭽﻨﯿﻦ ﺑﺎ ﺗﺄﺧﯿﺮ در زﻣﺎن ﮐﺎﺷﺖ، ﻣﯿﺰان ﻣﺎده ﺧﺸﮏ ﮐﻞ، وزن ﺗﺮ ﺳﺎﻗﻪ، ﻣﻘﺪار ﻋﻤﻠﮑﺮد ﭘﺮوﺗﺌﯿﻦ، وزن ﺗﺮ ﺑﺮگ ﮐﺎﻫﺶ ﯾﺎﻓﺖ.
چكيده لاتين :
For study of the effect of planting dates and irrigation intervals on quality and quantity performance of Nutrifeed Millet, an experiment was conducted as split plot in a randomized complete block design with three replications on four planting dates (22nd May, 2nd June, 13th June, 24th June) and three levels of irrigation (8, 11 and 14 days) in Neyshabour Agricultural College fields in 2019. Forage crop in the first and second harvest were assessed according to quantity characteristics (fresh and dry forage, leaf to stem ratio, number of tillers per plant, number of tillers in m2) and quality characteristics (total protein content, ash percent). The results indicated that by reducing the irrigation period time distance, fresh forage yield increased per unit area. With any delay in planting date, performance of fresh forage yield per unit area decreased. A decrease in the number of tillers at the second harvest caused an increase in protein and ash percentage because of the increase in leaf to stem ratio. Total dry matter, protein percentage, number of tillers in plant, weight of fresh stem decreased when time distance of irrigation periods increased. In addition, total dry matter, fresh leaf weight, protein performance value and fresh leaf weight decreased with delays in planting date.
