The objective of this study was to evaluate the influence of organic (cattle manure) and inorganic fertilizers [composite
NPK (15:15:15)] and natural zeolites on soil properties, vegetative growth and yield of apple plants grown on vertisol
under Cacak conditions (Western Serbia). The results showed that the combined fertilization induced a decrease in acidity,
an increase in humus content, a partial increase in total nitrogen (NTOT), and, primarily, a rise in available phosphorus
(P) and potassium (K) levels. A highly significant (P < 0.01) interactive effect of the apple cultivars and nutrients on
one-year-old shoot length and trunk cross-sectional area (TCSA) and a significant effect (P < 0.05) on yield per tree and
yield per hectare were determined.