The article focuses on the economic and energy efficiency as an effective indicator of the use of advanced agricultural technologies and modern agricultural machines and equipment regarding the cost, profitability level, potato yield and quality of the obtained tubers. The results of the studies showed that the highest economic efficiency was achieved through the combined row spacing (75 + 85 cm), the use of a tractor with a wheel tire size of 24.1 cm during crop tending with a yield of mid ripening Yavir 35.4 t/ha and with a tire size of 39.4 cm - 34.7 t/ha. Conditional net profit in the version with the tire size of 24.1 cm is UAH 64.8 thousand/ha, with the tire size of 39.4 cm - UAH 67.9 thousand/ha, which exceeds the control mark by 17.8 % and 16.9%. The early-ripening variety Serpanok with combined row spacings (75 + 85 cm) produced the highest yield of 31.7 t/ha with a tractor wheel tire size of 24.1 cm and 30.5 t/ha with a tire size of 39.4 cm, conditional net profit is UAH 59.8 thousand and UAH 56.6 thousand/ha, profitability level – 73.8 and 66.6%, which is more than the control mark by 16.9 and 12.7%. The application of combined row spacings and narrow tires of the tractor wheels helped to increase the economic efficiency of both varieties: in terms of Yavir variety the level of profitability was 270.5% at the net cost of 1 ton of tubers UAH 730, Energy efficiency factor (Eef) 1.48; in terms of Serpanok variety 237.8%, UAH 810 and Eef 1.24 respectively. For the farms located in the Polissia region, cultivation of Yavir variety is effective. Under the same conditions of cultivation, the conditional net profit was obtained in the amount of UAH 52.0-69.8 thousand/ha at Eef 1.11-1.48, while in terms of Serpanok variety these figures amounted to UAH 43.9-59.8 thousand/ha at Eef 1.10-1.24
potato, yield, row spacing width, tractor wheel tire width, energy efficiency, energy output, energy costs