The article provides data on the calculation of the economic efficiency of cultivation of hybrids corn of domestic and foreign selection - Mashuk 171, Monsanto DKS 3939, AS-201 against the background of two methods of basic tillage, methods of basic tillage - disking PM 5 ? 4 by 10 ... 12 cm and plowing unit EuroDiamant from Lemken for 25 ... 27 cm. The work was carried out in 2016–2018. in the soil and climatic conditions of the Prikubansky region of the Karachay-Cherkess Republic. The soil of the experimental site is a typical carbonate heavy loamy chernozem on loess-like carbonate clays and loams with a humus content of 5%, mobile phosphorus and potassium - 30 mg / kg and 389 mg / kg soil, respectively. The predecessor was corn for grain. The advantage of using plowing as the main method of soil cultivation was revealed, the level of profitability for the studied hybrids was from 111.7 to 53.6%, which is higher than in the variant with disking from 40.2 to 27.1%. As for the hybrids, the greatest economic effect was obtained from the cultivation of foreign breeding hybrids – Monsanto DKS 3939 and AS-201.