Abstract. Two of the main crops in Greece and the Greek archipelago are olive trees and potatoes. Due to the planting of new high-density farms, the area with olive groves in Greece has increased constantly during the last quarter of the century. The productivity of olive trees depends on the supply of N, K and Ca in particular, but also on the level of supply with P, Mg and trace elements. The potato falls into the group of plants with high requirements for nutrients, due to its high productivity and poorly developed high root system, compared to other crops, with a lower solubilizing power of soil chemicals. This study presents the role of the main nutrients in the nutrition of potatoes and olives, with reference to the varieties grown in the area of Messinia, Greece. From the point of view of the quantity and quality of the harvest, not only the quantity of nutrients is important, but also their ratio. Potatoes and olives were grown in the Messina region of Greece. Messinia borders on Elis to the north, Arcadia to the northeast, and Laconia to the southeast. The Ionian Sea lies to the west, and the Gulf of Messinia to the south.

olive, potato, fertilization, nutrients

agronomy

Presentation: poster