| Abstrakt: |
This study estimates the effect of application of mycorrhizal additives Ectovit and Mycorrhizaroots and hydro-absorbent Stockosorb on survival, growThand foliar nutrients of Norway spruce and European beech seedlings five years aft er outplanting. Survival rate was 74% for spruce and 56% for beech seedlings, regardless of treatments. Ectovit- and Stockosorb-treated spruce survived by 8% better than control, Mycorrhizarootstreated beech survived by 10% worse than in the other treatments. Damage rate of spruce was higher than that of beech in consequence of dying of severe damaged beech seedlings (deer browsing, mechanical damage at weed control, shoots drying) that were not counted to damage rate. GrowThof spruce was slightly more intensive than growThof beech. A slightly positive effect of Stockosorb on the growThof spruce and slightly negative effect on the growThof beech was detected, however, these effects were not significant. Foliar analyses revealed sufficient nutritional status for spruce, but insufficient content of potassium and magnesium for beech. Concentrations of nutrients in spruce needles were slightly higher in control than in Ectovit-treated seedlings, whereas nutrients in beech foliage were almost equal in all treatments. The results suggest a different response of the species tested to the additives, however, the additives effects were not marked on intraspecific level, probably due to favorable soil and climatic conditions of the planting site. [ABSTRACT FROM AUTHOR] |
