There are the following phenological phases since germination to maturity of the potato plant: sprouting, budding, flowering, start and stop foliage dying, that begins with a number of external morphological changes, associated with the formation of individual organs and parts of plants. The adopted in phenology plant phases development can be considered as objective evidence of these changes. The rate of formation of both vegetative organs, that perform essential functions of nutrition, respiration, water, synthesis and movement of substances in the body, and generative organs of reproduction are totals biological indicators, integrating the influence of the whole complex of environmental factors and hereditary nature of the organism. Of course, it affects the productivity of potato plants. Thus, planting depth significantly affects the growth, development and preservation of potato plants. The scheduled tuber yields were obtained in 2011 with the planting of potato tubers to a depth of 10-12 cm. Planting potatoes seed to a depth of 6-8 cm provides a higher yield of marketable tubers, this planting depth provides the most cost-effective outcome, regardless of the background of the power plants.