An inter-laboratory comparison of gaseous and liquid fumigation based methods for measuring microbial phosphorus (P-mic) in forest soils with differing P stocks

作者：Bergkemper Fabian; Buenemann Else K; Hauenstein Simon; Heuck Christine; Kandeler Ellen; Krueger Jaane; Marhan Sven; Meszaros Eva; Nassal Dinah; Nassal Pascal; Oelmann Yvonne; Pistocchi Chiara; Schloter Michael^*; Spohn Marie; Talkner Ulrike; Zederer Dan P; Schulz Stefanie

来源：Journal of Microbiological Methods, 2016, 128: 66-68.

DOI：10.1016/j.mimet.2016.07.006

• Microbial phosphorus
• Microbial biomass
• Gaseous fumigation
• Liquid fumigation
• Forest soils

In an inter-laboratory trial, gaseous ("CFE") and liquid fumigation ("Resin") based methods for measuring microbial phosphorus (P-mic) were compared, based on the analysis of soil samples from five forests, which differ in their P stocks. Both methods reliably detected the same P-mic gradient in the different soils. However, when the individual recovery rates of spiked P were taken into account, the "CFE" based methods consistently generated higher P-mic values (factor 2) compared to the "Resin" based approaches.

• 出版日期2016-9