Basing on many years of research in the mountains, the beneficial effect of zeolite-containing clays (leskenite, alanite) and para-aminobenzoic acid on the improvement of the quality of potato tubers in the mountains of the North Ossetia-Alania has been proved. The purpose of the work is to determine the influence of the above factors on the accumulation of starch and dry matter in tubers of potato varieties (Udacha, Vladikavkazcky, Predgorny, Romano). The novelty is that the beneficial effect of natural agro-ore and para-aminobenzoic acid on the accumulation of starch and dry matter in tubers of different varieties of potatoes has been proved for the first time on mountain meadow soils of the mountain zone. The high efficiency of applying agro ore to the soil has been established, leading to a stable increase in the high-quality potato crop. The counts and observations were carried out according to generally accepted methods described in the “Educational and methodological guide to research in agronomy”. As a result of the use of zeolite-containing clays (leskenite, alanite) and para-aminobenzoic acid, studies on the productivity and marketability of tubers made it possible to conclude that leskenite and alanite, which contain a complex of elements necessary for the development of potato plants, in combination with manure, had an effective effect on the formation of marketability different varieties of potatoes. The use of pure agro-ore and their mixtures with PABA also contributed to the effective impact on the formation of marketability. The application of a planting scheme of 70 × 25 cm for varieties Udacha and Romano in combination with natural agricultural products, manure, growth stimulant (PABA) is optimal for cultivation for seed purposes.