Productivity of grape plants during foliar fertilization with chelated fertilizers

The article presents the results of production experiments on the positive effect of the systemic use of chelated fertilizers on grape productivity in the conditions of the Foothill and Western foothill-coastal grape-growing regions of the Crimea on the wine grape varieties Bastardo Magarachsky and Aligote. During the research, it was proved that the use of experimental mineral nutrition systems consisting of agrochemicals produced by Kuban Agro-Resource LLC during two growing seasons of the vine led to an increase in the volume of growth of the vegetative mass of bushes by an average of 283.7 cm3 (8%) in varieties. It was experimentally determined that foliar treatments of grape plantations with the studied mineral fertilizers led to an increase in the mass of clusters by 7.6-12% and the productivity of shoots by an average of 10%. With an increase in these indicators, an increase in yield of 0.5-0.8 t/ha (up to 9%) was obtained, which contributed to an increase in the gross harvest of grapes in experimental plots. Against the background of an increase in grape productivity, there was no decrease in the quality indicators of the vine harvest.