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MICRO-, MACROELEMENTS AND HEAVY METALS IN THE ALGAE COMPONENT OF A NEW BIOSTIMULATOR-REGENERATOR FOR GRAPEVINE SOILS

Ticuţa Negreanu–Pîrjol

Abstract

The paper emphasize the correlation among the metals content in different samples of some individual macrophyte algae species with different contribution, as part of residual algae biomass along Romanian Black Sea Coast, that could be used as a potential new biostimulator-regenerator recommended for improving the quality of the vineyard soils from Dobrudja region, Romania. Concentrations and sources of copper, zinc, iron, chromium, manganese, cadmium, lead and aluminium were analyzed. For the metals content determination, measurements were performed by atomic absorption spectrometry in flame technique (FL-AAS) using a High-Resolution Continuum Source Atomic Absorption Spectrometer ContrAA 700, Analytik Jena AG, Germany. Taking into consideration the standard limits of metals content in soil samples according to the legislation in force and statistical analysis, no significant difference in the heavy metals level appears. As a conclusion, the heavy metals level determined in the above mentioned raw materials not exceeded the standard limits and, therefore, the new biostimulator-regenerator provides no supplementary heavy metals content by bioaccumulation, neither the translocation risk into the soil might take place. Also, due to the presence of biometals quantified in optimal molar ratio, the new biostimulator-regenerator can be used as nutrient for agriculture purposes, especially for the improvement of grapevine soils quality from Dobrudja region.

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DOI resolver: doi.org/10.5593/sgem2019v/6.3/s08.019

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