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\hypersetup{pdftitle={Mineral Content of Soil and Carum Copticum as Influenced by Nano"=silver Particles and Magnetic Field},pdfauthor={Mohammadjavad Seghatoleslami, Hassan Feizi},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Magnetic field, nano silver, nutrient absorption, water stress},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 18-21, 2016, Vienna, Austria}}\\[1ex] \Large{``Solidarity in a competing world ---\\fair use of resources''\\[2ex]}}
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\Large{\textbf{Mineral Content of Soil and Carum Copticum as Influenced by Nano"=silver Particles and Magnetic Field\footnote{\textbf{Contact Address:} Mohammadjavad Seghatoleslami, Islamic Azad University, Birjand Branch, Agriculture, Ghaffari, Birjand, Iran, \mbox{e-mail}: \email{mjseghat@yahoo.com}}\\[0.8ex]}}
\normalsize{\textsc{Mohammadjavad Seghatoleslami$^{1}$, Hassan Feizi$^{2}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$Islamic Azad University, Birjand Branch, Agriculture, Iran}}}
\item[]{\small{\textit{$^{2}$University of Torbat-e-heydarieh, Saffron Institute, Iran}}}
\end{itemize*}
\index[author]{Seghatoleslami, Mohammadjavad}
\index[author]{Feizi, Hassan}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Arid and semi"=arid regions of the world are generally noted for their low primary productivity due to a combination of low and unpredictable water supply and low soil nutrient concentrations. Sustainable agricultural systems rely on environmentally friendly technologies based on physical and biological treatments to increase crop production. In order to study the effect of nano"=silver particles and magnetic field on mineral absorption by Carum copticum an experiment was conducted as split plot based on randomised complete block design with three replications in Agricultural Research Center of Islamic Azad University, Birjand branch, Iran. Irrigation levels (control and water stress) were as main plot and soil fertilising methods (no fertiliser, fertilising with NPK -F, magnetic band-M, nano silver- N, M+N and M+N+50\%F) were as subplots. Soil EC in control treatment (\unitfrac[5.25]{ds}{m}) was more than drought stress one's (\unitfrac[3.77]{ds}{m}). On the other hand, N, P and K quantities of soil were significantly affected by fertilising treatments. The highest soil N content (\mbox{0.064\,\%}) was related to control (no fertiliser). The treatment of M+N+50\%F had the greatest soil P (12.17 ppm) and K (197.5 ppm). N and Ca content of plant tissue in drought stress condition increased \mbox{13\,\%} and \mbox{7.6\,\%}, respectively. The highest plant N (\mbox{1.96\,\%}) and K (\mbox{3.798\,\%}) content and plant ash (\mbox{12.13\,\%}) was related to F treatment, but the highest plant P (\mbox{0.387\,\%}) was related to M+N+50\%F one's. Interaction of drought stress and fertilising treatments on plant N and ash contents was significant. Totally the result showed there is no clear relationship between seed yield with plant and soil mineral content. On the other hand, it could not be said that in all environmental conditions and any plant species the use of magnetic field increase nutrients absorption from soil. }

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\noindent \textbf{Keywords:} Magnetic field, nano silver, nutrient absorption, water stress
\index[key]{Magnetic field}
\index[key]{Nano silver}
\index[key]{Nutrient!absorption}
\index[key]{Water!stress}
\end{document}
