The effect of various combinations and dosages of nutrients on agrobiological and quality traits of technical grape (Vitis vinifera L.) cultivars grown in the Garabagh region was the main focus determined by this research, being a viable viticulture of Azerbaijan. The local grape cultivar Khindogni and the introduced grape cultivars, Cabernet Sauvignon and Pinot Noir, were the selected objects of the study. Experiments comprising different fertilizer applications proceeded in four variants. In the experimental four variants, obtaining positive results was successful on various traits of the studied grape cultivars. For three grape cultivars, the following combinations and pattern of fertilizers proved to be most optimal for quality, yield, and economic efficiency. For the cultivar Khindogni, these were N120P120K120 (under the roots) + 2.5 kg/ha NPK 20:20:20 (on the leaves) and 8.5 kg/bush; for the cultivar Cabernet Sauvignon, data were N120P120K120 (under the roots) + 2.5 kg/ha NPK 20:20:20 (on the leaves) and 7.7 kg/bush; and for the cultivar Pinot Noir, these were N150P150K150 (under the roots) + 3.0 kg/ha NPK 20:20:20 (on the leaves) and 7.6 kg/bush.
Grape (V. vinifera L.), cultivars, fertilizer combinations, productivity, quality, nutrition
The successful determination of optimal fertilization methods for quality, yield, and economic efficiency of the technical grape (V. vinifera L.) cultivars Khindogni, Cabernet Sauvignon, and Pinot Noir resulted in the Garabagh Region of Azerbaijan.