ﺑﻬﯿﻨﻪ ﺳﺎزي ﮐﺎرآﯾﯽ ﻣﺼﺮف آب ﺑﺎ ﻣﺪﯾﺮﯾﺖ دور آﺑﯿﺎري و اﻧﻮاع ﺳﯿﺴﺘﻢ ﻫﺎي ﮐﻮدي در ﮔﯿﺎه ﺧﺮﻓﻪ Portulaca Oleracea L

Optimization of water use efficiency by irrigation management and different of fertilizer systems in purslane (Portulaca Oleracea L.)

آزﻣﺎﯾﺸﯽ ﻃﯽ ﺳﺎل زراﻋﯽ 95- 1394در ﻣﺰرﻋﻪ ﺗﺤﻘﯿﻘﺎﺗﯽ داﻧﺸﮕﺎه ﻋﻠﻮم ﮐﺸﺎورزي و ﻣﻨﺎﺑﻊ ﻃﺒﯿﻌﯽ ﺧﻮزﺳﺘﺎن، ﺑﻪ ﺻﻮرت ﮐﺮت ﻫﺎي ﯾﮏ ﺑﺎر ﺧﺮد ﺷﺪه در ﻗﺎﻟﺐ ﻃﺮح ﺑﻠﻮك ﻫﺎي ﮐﺎﻣﻞ ﺗﺼﺎدﻓﯽ ﺑﺎ ﺳﻪ ﺗﮑﺮار اﻧﺠﺎم ﮔﺮﻓﺖ. در اﯾﻦ آزﻣﺎﯾﺶ، ﭼﻬﺎر دور آﺑﯿﺎري )ﭘﻨﺞ، 10 ، 15و 20 روز ﯾﮑﺒﺎر( ﺑﻪ ﻋﻨﻮان ﻓﺎﮐﺘﻮر اﺻﻠﯽ و ﭼﻬﺎر ﺳﯿﺴﺘﻢ ﮐﻮدي ﺑﻪ ﺻﻮرت: 1- ﻋﺪم ﮐﺎرﺑﺮد 2- ﺳﯿﺴﺘﻢ ﮐﻮد ﺷﯿﻤﯿﺎﯾﯽ ﭘﺮﻧﻬﺎده ﯾﺎ ﻣﻌﻤﻮل 3- ﺳﯿﺴﺘﻢ ﮐﻮد ﻣﺮﻏﯽ 4- ﺳﯿﺴﺘﻢ ﮐﻮد ﮔﺎوي ﺑﻪ ﻋﻨﻮان ﻓﺎﮐﺘﻮر ﻓﺮﻋﯽ ﻣﻮرد ﺑﺮرﺳﯽ ﻗﺮار ﮔﺮﻓﺖ. ﺑﺮرﺳﯽ ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ اﺛﺮ ﮐﻠﯿﻪ ﻋﻮاﻣﻞ ﺑﺮ ﮐﺎرآﯾﯽ ﻣﺼﺮف آب در ﺳﻪ ﭼﯿﻦ ﻣﻌﻨﯽ دار ﺷﺪ. در ﺑﯿﻦ ﺗﯿﻤﺎرﻫﺎي ﮐﻮدي، ﮐﻮد ﺷﯿﻤﯿﺎﯾﯽ در ﺳﻪ ﭼﯿﻦ ﺑﯿﺶﺗﺮﯾﻦ ﻣﯿﺰان ﮐﺎرآﯾﯽ ﻣﺼﺮف آب را ﻧﺸﺎن داد. ﻫﻤﭽﻨﯿﻦ ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ در ﭼﯿﻦ اول ﺗﯿﻤﺎر آﺑﯿﺎري 15روز ﯾﮏ ﺑﺎر ﺑﯿﺶ ﺗﺮﯾﻦ ﻣﯿﺰان ﮐﺎرآﯾﯽ ﻣﺼﺮف آب را ﺑﺎ ﻣﺘﻮﺳﻂ 1/30 ﮐﯿﻠﻮﮔﺮم ﺑﺮ ﻣﺘﺮ ﻣﮑﻌﺐ دارا ﺑﻮد اﻣﺎ در ﭼﯿﻦ ﻫﺎي دوم و ﺳﻮم ﺗﯿﻤﺎر 20 روز ﯾﮏ ﺑﺎر ﺑﻪ ﺗﺮﺗﯿﺐ ﺑﺎ ﻣﺘﻮﺳﻂ 1/60 و 1/03 ﮐﯿﻠﻮﮔﺮم ﺑﺮ ﻣﺘﺮﻣﮑﻌﺐ ﺑﯿﺶﺗﺮﯾﻦ ﻣﯿﺰان ﮐﺎرآﯾﯽ ﻣﺼﺮف آب را دارا ﺑﻮدﻧﺪ.

An experiment was conducted in the research field of Khuzestan Agricultural Sciences and Natural Resources University in 2015- 2016 as a split plot in a randomized complete block design with three replications. In this experiment four irrigation intervals (5, 10, 15 and 20 days once) and four fertilizer systems (non-application (S1), high chemical input (S2), chicken manure (S3) and cow manure (S4)) were main plot and sub plot respectively. Results showed that the effect of all factors on water use efficiency in three cuttings was significant. Among fertilizer treatments, chemical fertilizer in third cutting showed the highest water use efficiency. The results also showed that in the first cutting 15-day irrigation treatment had the highest water use efficiency with an average of 1.30 kg / m3 but in the second and third cutting 20-day irrigation treatment with the average of 1.60 and 1.03 kg / m3 had the highest water use efficiency.