The estimation of the influence of the way of fertilization on the content of nitrogen in the leaves of apple trees

• Published in: Acta scientiarum Polonorum. Hortorum cultus (Ogrodnictwo) no. 3
• Main Authors: Treder, W., E-mail: [e-mail], Olszewski, T. (Instytut Sadownictwa i Kwiaciarstwa, Skierniewice (Poland)), E-mail: [e-mail]
• Format: Journal Article
• Language: Polish
• Published: 2004
• Subjects: Abonos nitrogenados; Aplicación de abonos; Apples; Application rates; Azote; Contenido de nitrógeno; Crop yield; Dose d'application; Dosis de aplicación; Engrais azoté; Experimentación en campo; Expérimentation au champ; Fertigation; Fertilisation; Fertilizer application; Fertirrigación; Feuille; Field experimentation; Fruit crops; Frutales; Hojas; Irrigation fertilisante; Leaves; Malus; Manzana; Nitrogen; Nitrogen content; Nitrogen fertilizers; Nitrógeno; Plante fruitière; Pomme; Rendement des cultures; Rendimiento de cultivos; Teneur en azote; Variedades; Varieties; Variété
• ISSN: 1644-0692; 2545-1405

The aim of the experiment was to estimate the influence of the way of fertilization on the content of nitrogen in the leaves of apple trees. The experiments were conducted in the Experimental Orchard located in Dabrowice on apple cultivars Gala and Jonagold grafted on rootstock M9, during a period of seven years (1993-99). Two kinds of fertilizers were used, one with nitrogen only the other one was a complete fertilizer containing all macronutrients. The results of the experiment showed a significantly higher content of nitrogen in the leaves of the cultivar Gala. The nitrogen content in the leaves Jonagold and Gala was influenced mainly by the age and level of yield of trees and meteorological conditions