CHEMICAL CHARACTERIZATION OF TOBACCO SOILS IN THE PRILEP REGION: ENVIRONMENTAL AND AGRICULTURAL PERSPECTIVES
2025
Dimovska Gonovska, Bojana | Jordanoska Shishkoska, Biljana | Stafilov, Trajče | Pelivanoska, Valentina | Tănăselia, Claudiu
The quality of the soil plays a fundamental role in agricultural productivity, particularly in tobacco cultivation, where both high yields and superior leaf quality are essential. The elemental composition of the soil, in particular the balance between essential nutrients and the presence of potentially toxic elements, plays a crucial role in shaping soil quality and influencing overall plant health and development. In this study, the soil quality in the Prilep region in North Macedonia, the main cultivation area for oriental tobacco, is investigated. During the 2021 and 2022 growing seasons, soil samples were collected from selected tobacco fields and analyzed using ICP-MS to determine the concentrations of selected macro and microelements (K, Mg, Fe, and Na) as well as potentially toxic elements (As, Cd, Cr, Cu, Ni, Pb, and Zn). In addition to elemental analysis, several key agrochemical properties were also assessed: organic matter content (ranging from low to moderate), total nitrogen content (0.03–0.14%), soil pH (mean 6.55, indicating slightly acidic to neutral conditions), the availability of essential nutrients (phosphorus and potassium), the physical structure of the soils (classified as medium loam), and clay content (20.6% to 58.7%). The content of macro- and microelements were closely related to the geological and pedological characteristics of the region. The concentration of potentially toxic elements remained below the internationally accepted thresholds for heavy metals in agricultural soils, indicating a low risk of contamination and confirming the suitability of these soils for sustainable tobacco cultivation.
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