Milinković, Mira Raičević, Vera Paunović, Svetlana Tomić, Jelena Karaklajić-Stajić, Žaklina All rights reserved biostimulators, apple, macro and microelements, heavy metals info:eu-repo/semantics/article eng Journal of Mountain Agriculture on the Balkans 25 (4) Influence of Biostimulators on the Quality of Apple Fruits 2022 The influence of the application of soil biofertilizers on the content of sugar, macro, microelements and heavy metals in the fruits of the apple cv. Idared and Red Chief was analysed. In both cultivars, lower values of soluble solids content (SSC), total sugars (TS), inverted sugars (IS), sucrose and higher titratable acidity (TA) were measured, as well as increased absorption of Ca, Mg, Na, P, Cu, Mn. In cv. Idared, in addition to the mentioned elements, the absorption of K and Fe was increased, and the influence of biofertilizers contributed to the reduction of the absorption of Pb, Ni, Cr. The higher Ca content in the treatments enabled a more favourable K/Ca ratio, which contributes to a longer storage of fruits. Biofertilizers with specific consortia of bacteria influenced the utilization of high microbial biodiversity and had a stimulating effect on the uptake of nutrients from the soil and the optimization of their content in apple fruits. https://unilib.phaidrabg.rs/o:2763 ISSN: 1311-0489 application/pdf 519208 bytes