The crops were done in Greece, in the region Aitoloakarnania, on an alluvial soil having a pH of 7,4 and a humus content of 2,10%. The researched hybrids were Lazaro and Varenne, cultivated on three fertilization levels and three densities. The crop results showed that, by increasing the nitrogen doses from N 100 to N 200 on a constant base of P 100 K 100 , the yield increased with 9%. By increasing the doses to N 300 the yield increased with 12%. The hybrid Varenne distinguished itself from the other analyzed hybrid, its yield result being 20% higher than the one of the Lazaro hybrid. Among the studied plant densities to remark was the one of 70.000 plants/ha, a variant in which the yield was 13% higher than the variant in which the plant density was of  60.000 plants/ha.

maize grains; irrigation; hybrids; fertilization

Presentation: oral