Influence of possible surfaces on the formation of the bargain surface surface of the current hybrides

The article presents the results of the influence of foliar fertilization with microfertilizers "Ecolist monozinc", "Rostock corn", plant growth regulator "Vympel" and bacterial "Biomag" on the leaf surface area in corn hybrids of different ripening groups. As a result of the studies, the greatest value of the total area of the leaf surface (28.9-41.9 thousand m2/ha) was identified in the variants where two-time processing by the micro-fertilizer "Ecoleist monozinc" into phase 5-7 and 10-12 leaves of corn plants. This increase in the area of the assimilative surface of the leaves, compared with the control, was 2.4-5.0 thousand m2/ha.