University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Katrin Ehrenbrandtner
(2020):
Determination of Nickel release from ground basalt rock in agricultural soils and the accumulation of Nickel by crop plants.
Master / Diploma Thesis - Institut für Bodenforschung (IBF),
BOKU-Universität für Bodenkultur,
pp 61.
UB BOKU
obvsg
FullText
- Abstract:
- The aim of this work was to examine how much nickel and chromium is introduced into the soil by the addition of basalt stone meal from Pauliberg and a basalt stone meal + compost mixture with increased chromium and nickel values; furthermore it was assessed if the treatments influenced shoot concentrations of nickel, chromium and other elements in three different crop species. A pot experiment was carried out in which an equivalent of 5 t basalt meal (or 5.3 t/ha in the basalt meal-compost treatment) per hectare of soil was introduced into two different test soils. In addition, three different plants (wheat, spinach and soy) with different element mobilization mechanisms in the rhizosphere were planted. In some treatments, slight increases in the concentrations of nickel and chromium, but also of phosphorus were observed in the plants, with the latter being released mainly from the compost fraction. Only minor and negligible changes were observed in the mobile fractions of chromium and nickel in the soil extract. The addition of basalt stone meal as a soil additive or in composting is harmless with regard to the possible release of nickel or chromium. Nevertheless, due to its high nickel and chromium concentrations, basalt stone meal from Pauliberg is not permitted as a soil- or plant additive according to the Austrian fertilizer ordinance. A possible and legal application of the basalt stone meal is as an additive to compost. This work should be followed up by a longer field trial where higher application rates and the effects on soil and plants should be tested.
- Beurteilende(r): Puschenreiter Markus
- 1.Mitwirkender: Wenzel Walter