
TY  - JOUR
A1  - Perrott, KW 
A1  - Sarathchandra, SU 
T1  - Seasonal variations in soil S flush and possible contributions from plant roots in the measurement of soil microbial sulfur, phosphorus, potassium and nitrogen
JF  - Soil Research
JO  - Soil Res.
Y1  - 1990
VL  - 28
IS  - 5
SP  - 747
EP  - 753
KW  - 
UR  - https://doi.org/10.1071/SR9900747 
N2  - The seasonal changes of the flush of soil sulphur (S) after CHCl3 fumigation were studied in a two-year field trial on a high-producing pastoral soil. The pattern was different from that observed for microbial P, and this may be explained by seasonal changes in the contribution of roots to the soil S flush. Roots extracted from sieved (<4 mm) soil were used to estimate the contribution of plant roots in the determination of soil microbial P, K, N and S. Increases in P, K and N extracted from roots after CHCl3 fumigation made only a small contribution to the increases for the soil (4%, 2% and 7% for P, K and N respectively). The contribution of roots to the increase in S extracted from soil after fumigation was about 22%. 
ER  -

