Fruit growing
and viticulture of South Russia

Annotation

The article presents the results of research of the influence of the new water-soluble foliar fertilizers as Atlant Plus, Nutrivant Plus, Kelik potassium-silicon and complex of microelements (KM) - B, Mn and Zn on agrobiological and technological characteristics of the technical grapes variety of Chardonnay. Research were carried out in the AF CGC "Primorskoye" of the Temryuk District. The experimental setup consisted 5 options: no treatment (control); Atlant Plus - 2 kg / ha; Nutrivant Plus - 1 kg / ha; Kelik potassium-silicon - 3 kg / ha; microelements (In, Zn, Mn) - 600 g / ha. The consumption rate of the working fluid is 500 l / ha. During the growing season the foliar application was carried out in three terms: after flowering, in the growth phase of berries (berry of a pea) and in the beginning of berries ripening. It was found that foliar fertilizing of vines by all tested fertilizers has led to some increase in weight of the bunch and the significant increase in yield from the bush on 4,3-6,5%. Kelik potassium-silicon contributed to an increase in safety factor and fruiting buds, Nutrivant Plus - factor of fruiting, and Atlant Plus and KM - the coefficient of fruitfulness and the number of fruit-bearing buds at least two buds. The use of fertilizers led to a significant increase in the sugar content in the juice of berries and to some reduction in the content of titratable acids. The highest content of chlorophyll (a + b), and the amount of carotene and pigments have appeared in the versions of "Atlanta Plus" and "Kelik potassium-silicon", in which the berries have the highest sugar content. Application of Nutrivant Plus and Atlant Plus helped to improve the quality of wine materials. The highest estimate was provided by foliar fertilizing of bushes by complex of micro elements (boron, manganese, zinc).