Journal article

Publication year: 2016

Pages: 159-167

Journal: Journal of Plant Nutrition and Soil Science

Volume number: 179

Issue number: 2

ISSN: 1436-8730

DOI Link: https://doi.org/10.1002/jpln.201500119

Publisher: Wiley-VCH Verlag

Abstract: 
Nanoparticles and colloids affect the storage and hence the availability of P in forest ecosystems. We investigated the fine colloids present in forest soils and their association with inorganic and organic P. To differentiate between the different P forms, we performed liquid-state P-31-nucelar magnetic resonance (P-31-NMR) measurements on forest bulk soil extracts, on colloid extracts and on the electrolyte phase of their soil suspensions. The P-31-NMR spectra indicated that soil nanoparticles and colloids were more enriched with organic than with inorganic P forms compared to the electrolyte phase. The P concentration was enriched in the colloidal fraction in comparison to the bulk soil and the phosphate diesters were more dominant in the colloidal fraction when compared to the bulk soil. The colloidal P-diester to P-monoester ratios were 2 to 3 times higher in the colloidal fraction than in the bulk soil. In contrast, relatively large percentages of inorganic P were found in the electrolyte phase.

Harvard Citation style: Missong, A., Bol, R., Willbold, S., Siemens, J. and Klumpp, E. (2016) Phosphorus forms in forest soil colloids as revealed by liquid-state P-31-NMR, Journal of Plant Nutrition and Soil Science = Zeitschrift für Pflanzenernährung und Bodenkunde, 179(2), pp. 159-167. https://doi.org/10.1002/jpln.201500119

APA Citation style: Missong, A., Bol, R., Willbold, S., Siemens, J., & Klumpp, E. (2016). Phosphorus forms in forest soil colloids as revealed by liquid-state P-31-NMR. Journal of Plant Nutrition and Soil Science = Zeitschrift für Pflanzenernährung und Bodenkunde. 179(2), 159-167. https://doi.org/10.1002/jpln.201500119