Kaarina Niska 
Kivennäismaan ravinnemäärien ilmaisutapa.
Niska K. (1986). Kivennäismaan ravinnemäärien ilmaisutapa. Silva Fennica vol. 20 no. 2 article id 5268. https://doi.org/10.14214/sf.a15447
English title: Expressing the nutrient concentrations of mineral soilsAbstract
Gravimetrically expressed nutrient concentrations of soil analysis were converted to volumetric values using dry bulk densities measured in the natural state and in the laboratory after air-drying and sieving the samples. The aim was to examine, using volumetric samples representing different soil classes, exactly how the converted nutrient values calculated by this laboratory method describe volumetric nutrient contents in undisturbed soil. In the fine soil classes undisturbed bulk density was higher than laboratory bulk density and converted nutrient concentrations were too small. In coarser soil classes the reverse was true, and the values were too high.
The PDF includes an abstract in English.
Original keywords
ravinnepitoisuus;
maa-analyysi;
maalajit;
ravinneanalyysi;
määrätilavuus;
raekoostumus
English keywords
soil chemistry;
bulk density;
nutrient concentration;
soil texture;
soil analysis
Published in 1986
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Available at https://doi.org/10.14214/sf.a15447 | Download PDF
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