The article presents the results of the field testing of the Eurofertil Plus 36 soil fertilizer. The results showed that the administration of the Eurofertil Plus 36 fertilizer in a dose of 300 kg/ha raised by two steps the ensuring degree of the soil with accessible phosphorus and potassium content, up to 4.98 and 33.0 mg/100 g soil, their content in the control variant constituting 2.42 and 26.0 mg/100 g soil. This dose also ensured a significant increase of grapes of 2.70 t/ha, or 19% more than the unfertilized control, where a harvest of 14.4 t/ha was formed. The applied fertilizer also contributed to the accumulation of sugar and vitamin C in the grape juice. Their concentration increased compared to the control variant by an average of 1.3–1.5% and 1.3–2.1 mg/l. Total acidity decreased on average by 0.30%.