USE OF BIOLOGICALLY ACTIVE POLYFUNCTIONAL POLYMERIC COMPOUNDS IN POTATO CULTIVATION

In the conditions of growing intensification, application of chemicals, and the use of increasingly powerful pesticides, there is a need to shift to biological agriculture developing technologies of growing ecologically safe products. Alternative farming systems are currently actively introduced – examples include the replacement of traditional pesticides to ensure the biological protection of plants and decreased application rates of mineral fertilizers. Of great importance is the use of drugs that have complex effective actions in the cultivation and protection of crops. The study was carried out in 2017-2018, in the VNIIKH institute on the background of fractional-local application of mineral azophoska fertilizers with the addition of potassium magnesia at a rate of 90 : 90 : 120 with use of the “Growth Matrix” preparation (15% soluble concentrate – biologically active polyfunctional polymeric compound) in five potato varieties with different maturity stage – Red Scarlett, Ilyinsky, Golubizna, Nakra and Nikulinskiy. On average, over a two-year period, Nikulinskiy, Red Scarlett and Ilyinsky varieties showed an increase of 5.6, 4.4 and 3.8 t/ha (24, 22 and 21%), respectively. On average, when using the “Growth Matrix” preparation for all tested varieties, an increase in yield of 3.6 t/ha (18%) or up to 70 thousand rubles/ha of conditional net income was observed.