Abstract

Two-year-old seedlings of two German provenances [Norddeutsches Tiefland (NT), Westdeutsches Bergland (WB)] of Viburnum opulus L. were cultivated in containers with ‘low’ and ‘high’ fertilization for one vegetation period and then transplanted into the field.

At the end of cultivation dry weight (dwt) of plants from NT was higher compared to WB. After outplanting NT maintained its higher dry weight of shoots. In the nursery only the dry weight of new shoots of NT increased due to the higher fertilization. Two years after outplanting the effect of high fertilization was still to be seen in higher dry weight of roots and old shoots for both provenances. At the end of cultivation high fertilization increased N-, P-, and K-concentration for WB in all plant compartments, but in NT only in roots. After outplanting % N decreased in all plant parts; % P and % K increased in new shoots and decreased in old shoots and roots. Retranslocation of N from the roots was higher for the previously high fertilized plants. For both fertilization levels retranslocation was slightly higher for the plants from WB.