Original scientific paper

Influence of foliar nutrition with nitrogen, potassium and boron on the level and seasonal changes of nitrogen, potassium and boron concentrations in the olive leaves cv. Oblica

Slavko Perica ; Institut za jadranske kulture i melioraciju krša Split, Hrvatska
Zlatko Čmelik ; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska

Abstract

Influence of foliar nutrition with nitrogen, potassium and boron in comparison with untreated control trees on the level and seasonal changes of nitrogen, potassium and boron in the olive leaves cv. Oblica were observed over the growing season. The concentration of N in the leaf was the highest in the winter-springtime period, while the lowest N concentration was observed in the middle of the vegetation when stone in the fruit was hardening. Leaf potassium concentration gradually rose up to time of fruit ripening. Boron concentration showed no clear seasonal tendency. Foliar application of N, K and B caused significantly higher leaf N,K and B concentration.

Keywords

olive tree; foliar nutrition; nitrogen; potassium; boron

Hrčak ID:

26606

URI

https://hrcak.srce.hr/26606

Publication date:

28.7.2007.

Article data in other languages: croatian

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