Abstract: The use of large, whole potato tubers as seed potatoes to increase potato yield and the effect of sparse sowing of these tubers on the main agronomic traits and the yield-increasing potential were studied in a field experiment. Sparse sowing increased seedling rate, main stem number, plant height, tuberization rate, fresh tuber weight, leaf area index (LAI), yield and commodity rate. Sparse sowing was significantly different from cut tuber sowing. A comprehensive comparison showed that there was a stronger yield-increasing potential by using sparse sowing, and the main agronomic traits were also improved, a promising perspective for extending this technique. The yield increase was greatest when whole tuber weights were 140-160 g per potato at a planting density of 27 779 plants per hectare. The application of a combination of the two treatments is suggested for potato production.