Influence of soil fertility on the bioflavonoid complex of Vaccinium corymbosum L. fruits when using biological growth regulators

The article presents the results of a comparative study conducted in the southern agro-climatic zone of Belarus (Gantsevichsky District, Brest Region), as part of two field experiments with low and high levels of soil fertility. The study examined the effect of biological growth-stimulating agents, such as Blueberry Peat Oxidate with micronutrients at a concentration of 0.4 %, and the new microbial preparation Ecoberit at concentrations of 2, 4, and 8 %, on the formation of the bioflavonoid complex in highbush blueberries. The stimulating effect of the tested agricultural practices on the accumulation of P-vitamins in the plants was established, and the degree of this effect was determined by the state of the agrochemical background, the type and concentration of the preparation, as well as the chemical nature of the organic compounds. The main trends in the changes in the ratio of the main groups of bioflavonoids under the influence of the tested preparations, depending on the edaphic factor, were shown. It was found that in soils with a lower level of fertility, the most significant enrichment of soybean fruits with these bioflavonoids occurred.

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