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Obtaining Environmentally Friendly Trace Element Preparations for Crop Production via the Electric Spark Treatment of Metals
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1  National University of Life and Environmental Sciences of Ukraine
Academic Editor: Blaž Likozar


Traditional technological approaches used for the cultivation of field crops using many mineral fertilizers and chemical plant protection products are becoming costly, as well as environmentally and economically irrational. An alternative direction is the use of modern technological approaches, including nanomaterials. The article presents the method of obtaining a biologically acceptable and effective form of trace elements in the form of aqueous dispersions of metals. During the research process, we studied the regularities of the electro-spark dispersion of metals, which determines the synthesis of nanoparticles of biogenic elements. Electron microscopy (SEM and TEM) and the X-ray diffraction analysis of the metal phase of colloidal solutions were used to research the composition, structure, and average sizes of the obtained nanoparticles of various metals. A complex compound was prepared, which includes metal nanoparticles, in particular, such as iron (Fe)—1800 ppm; copper (Cu)—400 ppm; zinc (Zn)—1000 ppm; and manganese (Mn)—800 ppm. The compounds were tested in the field during the cultivation of winter wheat at different stages of organogenesis. The application rate of the prepared compound was 1-1.5 l/ha, and 1.0-1.5 liters of the compound were diluted in 250 liters of water. It has been established that the proposed technology increases grain yield and its quality indicators. The presented technology for growing grain crops is cost-effective and provides an increase in wheat cultivation profitability by 10-15%. The presented technology (electric spark method) can be considered ecologically and environmentally safe. It does not pose a threat to the environment, the agricultural sphere, and humans due to their probable biodegradation.

Keywords: electrospark synthesis; nanoparticles of biogenic metals; ecology of the agrosphere; biodegradation