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Effect of alginite amendment on microbial activity and soil water content in forest soils
Authors:Erika Gömöryová  Dionýz Vass  Viliam Pichler  Du?an Gömöry
Institution:(1) Faculty of Forestry, Technical University in Zvolen, T.G. Masaryka 24, SK-96053 Zvolen, Slovakia
Abstract:The effect of the amendment with alginite, an organic rock originating from the biomass of fossilized unicellular algae, on microbial activity of forest soils was tested using a pot experiment. Five variants of soil-alginite mixtures were tested in three replicates with two forest soils: a loose sandy soil and a sandy loam. Gravimetric moisture closely correlated with the dose of alginite in both soils. Basal respiration and catalase activity increased with the dose of alginite in the sandy soil, but not in the sandy loam, where the highest response was observed at intermediate doses of alginite. The correlations of microbial activity parameters with moisture in the sandy soil were also much closer than in the sandy loam. The amendment with alginite was thus effective in improving some of the selected microbial activity indicators, but the optimum dose of alginite strongly depends on soil texture.
Keywords:alginite  soil moisture  soil respiration  soil enzyme activity
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