
TY  - JOUR
A1  - Manu, VT 
A1  - Kipton, H 
A1  - Powell, J 
A1  - Banks, L 
A1  - Sheat, A 
A1  - Widdowson, JP 
T1  - Accession of SO<sup>2-</sup><sub>4</sub> sulfur from Tongan rainfall
JF  - Soil Research
JO  - Soil Res.
Y1  - 1990
VL  - 28
IS  - 5
SP  - 727
EP  - 736
KW  - 
UR  - https://doi.org/10.1071/SR9900727 
N2  - Accession of SO42- S from rain in Tonga has been assessed as approximately 6 kg S ha-1 year-1 from analysis of rainwater collected at three sites on two islands over a period of 365 days. The accession is of similar magnitude to crop removal of soil S. This accounts for the absence of S deficiencies in crops grown on andesitic soils which, on the basis of low to very low levels of adsorbed sulfate and low plant yields in glasshouse trials, were considered S-deficient. From consideration of ion ratios, it was established that sea spray/marine aerosol is the major source of SO42- S in Tongan rainwater. 
ER  -

