Phosphatase activities of spruce stand soils after serpentinite fertilisation in combination with nitrogen, phosphorus and potassium fertilisers

Autorzy

• Kazimierz Januszek University of Agriculture in Krakow, Faculty of Forestry, al. 29 Listopada 46, 31-425 Kraków
• Ewa Błońska University of Agriculture in Krakow, Faculty of Forestry, Department of Forest Soil Science
  al. 29 Listopada 46, 31-425 Kraków, Poland
  phone: 48 12 6625031, e-mail: eblonska@ar.krakow.pl
• Tomasz Wanic University of Agriculture in Krakow, Faculty of Forestry, al. 29 Listopada 46, 31-425 Kraków, Poland
• Stanisław Małek University of Agriculture in Krakow, Faculty of Forestry, Institute of Forest Ecology and Silviculture, Department of Forest Ecology and Reclamation, Al. 29 Listopada 46, 31–425 Kraków, Poland

Abstract

The aim of this study was to assess the condition of soil after serpentine fertilisation by determining the activity of phosphatase and some physicochemical properties of soil. The study was conducted in southern Poland in the Wisła Forest District (49o38’12.92N 18o58’56.36E). The following variants: C – control – no fertiliser; S – ground serpentinite; SN – serpentinite + nitrogen; SP – ground serpentinite + P; SNP – ground serpentinite + NP; SNPK – ground serpentinite + NP (as above) + K. Fertilisation of serpentinite stimulates the activity of phosphatase in soil under spruce stands. The positive impact is reflected in the organic horizon. Less activity was noted in the humus-mineral horizon (AE) in all the fertiliser combinations three years after the fertilisation. Fertilisation of serpentinite improves the chemical properties – pH was increased, reduction of molar ratio of exchangeable calcium to magnesium form was noted.

Keywords

• serpentinite fertilisation
• spruce stands
• forest soils