The purpose of our research was to study the effect of zinc fertilizers on the cultivation of corn hybrids, the formation of crop structure elements and grain productivity, and to give an economic assessment. Field experiments were carried out in 2020–2022. in the educational and production complex of the Kabardino-Balkarian State Agrarian University named after V.M. Kokova. Experiments were laid on leached chernozem. It has been established that when applying zinc fertilizers, the most favorable conditions are created for a powerful photosynthetic apparatus, which ensures the formation of a maximum yield. When processing seeds and plants during the growing season, the leaf area increased for the corn hybrid Katerina SV - 8.2-24.7%, Mashuk 150 MV - 5.1-12.6% and NUR - 14.7-19.8% . The largest average area for all phases was in the variant N60P60K30 (Background) + seed treatment + plant treatment during the growing season with Zn. With the joint application of N60P60K30 and treatment of seeds and plants with zinc during the growing season, an increase was obtained in the hybrid Katerina SV 13.7-17.2 c/ha, in the hybrid Mashuk 150 MB - 13.9-15.9 c/ha and in the hybrid NUR - 11.3-17.0 c / ha. The calculation of economic efficiency showed that the net income for the hybrid Katerina SV - amounted to 28.6 thousand rubles, for the hybrid Mashuk 150 MW - 28.9 thousand rubles. and for the corn hybrid NUR - 37.4 thousand rubles. with a profitability level of 158.7%, 160.7% and 208%, respectively.