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ABSTRACT
The aim of the present research was to study the long-term effect of serpentinite fertilization with additional nitrogen, phosphorous, and potassium fertilizers on some physicochemical properties and the enzyme activity of acidic soils and needle chemistry in stands of Norway spruce (Picea abies (L.) Karst.). Experimental plots were located in spruce stands in the middle forest zone (900–950 m) on two nappes of the Carpathian flysch: Magura and Silesian. Serpentinite was introduced in autumn 2008 on all plots while the other fertilizers in spring 2009. The effect of fertilization was visible mainly in the humus horizon. No significant changes were found in the deeper mineral soil. The acidity and Al toxicity in the surface horizon were ameliorated through serpentinite fertilization. Five years after fertilization, no significant difference in the fertilization treatments was noted in the chemistry of the spruce needles.
Funding
The present study was financed by the State Forests National Forest Holding in Poland within the project no. 3/08: “Forest management measures improving the growth, nutrition and health conditions in forest regeneration areas and endangered stands in the Beskidy Mts, with particular emphasis on soil revitalization with dolomites and new multi-component long-acting fertilizers”.