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Investigation of nano zero-valent iron and zinc interactions with plants in the hydroponics
 Švengrová, Denisa ; Vítková, Martina (advisor) ; Petr, Petr (referee)
The diploma thesis deals with the issue of nanoscale Zero-Valent Iron (nZVI) application for the chemically assisted phytostabilization of zinc (Zn) in order to decrease mobility of this element in the environment. The interactions of nZVI and Zn have been investigated during the experiments using tomato plants (Lycopersicon esculentum L.), which were grown in a hydroponic solution. Furthermore, the effects of the interactions on the uptake of water, macronutrients and iron (Fe) have been assessed. The use of nZVI proved to be an effective solution for the stabilization of lower concentrations of Zn (100 micromol) in the root system or for purposes of the assisted phytoremediation. However, the impact of nZVI was not significant high concentrations of Zn (500 micromol). During the application of Zn at increased concentrations a decrease in water uptake has been observed, which can limit the macronutrient uptake. It is necessary to pay attention to further research and study the effects of the nanoparticles application and their interactions in the environment.
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