کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1057258 | 947067 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vetiver (Vetiveria zizanioides) responses to fertilization and salinity under irrigation conditions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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![عکس صفحه اول مقاله: Vetiver (Vetiveria zizanioides) responses to fertilization and salinity under irrigation conditions Vetiver (Vetiveria zizanioides) responses to fertilization and salinity under irrigation conditions](/preview/png/1057258.png)
چکیده انگلیسی
Vetiver (Vetiveria zizanioides) has not been widely introduced in arid and semi-arid regions where irrigation, fertilization, and salinity are important factors in plant growth. The main objective of this study was to determine the response of vetiver to fertilization (fertigation) and salinity and their interactions under irrigated conditions. The experiment was conducted in a greenhouse in 10-L pots. Combined effects of three nutrients concentrations and three salinity levels of electrical conductivity (EC) 1, 3 and 6Â dS/m in the irrigation water on growth and transpiration of vetiver plants and the content of different elements in their foliage were studied. Similar contents of â¼3.7Â g/kg Na, â¼5.77Â g/kg Ca and â¼2.55Â g/kg Mg were found in the foliage of all the plants irrigated with the different fertilizer and salinity levels. Concentrations of 59Â mg/L N and 36.1Â mg/L K in the irrigation water were sufficient for vetiver plants needs at the different salinity levels tested. The salinity threshold (the maximum EC in the soil solution that does not cause a significant yield reduction) for vetiver was between 3 and 6Â dS/m. A concentration of 15.2Â mg/L P in the irrigation water was the optimum value for vetiver growth in the three salinity levels, resulting in an average content of 5.95Â g/kg P in plant foliage. It is suggested that vetiver is sensitive to excess P (>8.66Â g/kg). Increasing EC in the irrigation water to 6Â dS/m decreased plant foliage biomass mainly due to an increase in the osmotic potential of the irrigation water and high Clâ concentration in the foliage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 91, Issue 1, October 2009, Pages 215-221
Journal: Journal of Environmental Management - Volume 91, Issue 1, October 2009, Pages 215-221
نویسندگان
Menahem Edelstein, Zvi Plaut, Nativ Dudai, Meni Ben-Hur,