
TY  - JOUR
A1  - Bolland, MDA 
A1  - Allen, DG 
T1  - Storage of air-dry soil samples at 0 degrees C or at room temperature before analysis does not affect bicarbonate soil-test phosphorus
JF  - Soil Research
JO  - Soil Res.
Y1  - 1996
VL  - 34
IS  - 2
SP  - 243
EP  - 249
KW  - bicarbonate-extractable soil P, Colwell soil-test P, extractability, Olsen soil test P.
UR  - https://doi.org/10.1071/SR9960243 
N2  - Five levels of phosphorus (P), as powdered single superphosphate, were incubated in moist soil (field capacity) for 42 days at 50°C in six different soils collected from south-western Australia. The soils were then air-dried for 7 days. Some subsamples of air-dry soil were stored for 180 days at 0°C in a cold room. Other subsamples were stored at fluctuating room temperature (18&ndash;25°C) in a laboratory and were sampled at 30, 60, 120, 150 and 180 days after storage to measure bicarbonate-extractable P (soil-test P) by the Olsen and Colwell procedures. No changes in soil-test P were detected while air-dry soil samples were stored at 0°C or room temperature. 
ER  -

