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Effect of new-generation mineral fertilizers on productivity of grapes and quality of wine in the Crimea

The article presents the results of the experimental study of the effect of new-generation mineral fertilizer “Nutri-Fight” and water conditioner “Spartan” (used as a tank mixture) on productivity of grapes and quality of wine produced from the red wine grape variety ‘Cabernet-Sauvignon’. Experiments were carried out in the soil and climatic conditions of the mountain-valley zone of the Crimean Peninsula. The studied preparations were added to mineral fertilizer and used at such grape berry development stages as “before blooming”, “after blooming”, “pea-sized berry”, “beginning of fruit maturation”. In the course of the research we found that 2.25 l/ha of “Nutri-Fight” and 0.2 l/ha of water conditioner “Spartan” were the optimal rates and had positive effect on the grape yield and wine quality