Volume 16, Number 62 (Winte - 2013 2013)                   JWSS 2013, 16(62): 35-49 | Back to browse issues page


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M. R. Asgharipour, A. Ghanbari Bonjar, H. Azizmoghadam, A. R. Sirousmehr, M. Heidari. Effects of Irrigation With Treated Municipal Sewage Effluent and Micro-Nutrients Foliar Spray on Foxtail Millet Growth and Nutrients Uptake in Zabol. JWSS. 2013; 16 (62) :35-49
URL: http://jstnar.iut.ac.ir/article-1-2492-en.html

Abstract:   (10264 Views)
In this study the effects of irrigation with raw or diluted municipal effluents along with foliar micro-nutrients fertilizer spray were examined on the growth, yield and mineral nutrient in foxtail millet plants. The experimental design was a split-plot with three irrigation sources (namely raw sewage, 50% diluted sewage and well water) as main-treatment and four combinations of Mn and Zn foliar spraying as sub-treatments, which were applied with three replications. The experiment was conducted at the Zabol University research farm during 2009. The applied municipal effluents contained higher levels of macro and micro-nutrients than the well water. The experimental results indicated that irrigation of plants by raw or diluted sewage improved the measured growth parameters and productivity of foxtail millet plants. In addition macro and micro-nutrients concentrations were improved. These improvements were attributed to the presence of high levels of essential nutrients such as nitrogen, phosphorus, and organic matters in wastewater. Manganese and Zn supplied through sewage water alone were not able to raise the productivity of millet to the level obtained through fertilizers at the recommended level, which indicated that additional nutrients through fertilizers are required to obtain higher productivity of millet under sewage farming. Despite the differences in nutrients concentration among different irrigation water sources, the micro-nutrients foliar spray did not affect concentration of macro and micro-nutrients in foxtail millet plant. Overall, the results suggest that municipal sewage could be efficiently utilized as an important source of water and nutrients in growing foxtail millet Sewage water irrigation did not have any appreciable harmful effect on crop productivity.
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Type of Study: Research | Subject: Ggeneral
Received: 2013/03/13

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