
%0 Journal Article
%A McIntyre, DS 
%T Characterizing soil aeration with a platinum microelectrode. I. Response in relation to field moisture conditions and electrode diameter
%J Soil Research
%D 1966/12/01
%V 4
%N 2
%P 95-102
%K 
%R https://doi.org/10.1071/SR9660095
%U https://www.publish.csiro.au/paper/SR9660095 
%X Measurements with a platinum microelectrode under field conditions in a range of irrigated soils have been analysed in terms of applicability of the method for the field measurement of soil aeration. In well-drained soils the moisture content fell below the range in which the electrode operates satisfactorily within 2 days of heavy watering, but in poorly drained soils the electrode remained operative for up to 6 days. Field measurements were made with an electrode of 1.22 mm diameter, so diffusion theory was applied to convert the values to those for a 0.50 mm diameter electrode, a size more frequently used. Measurements were then made under controlled conditions in saturated and unsaturated media to confirm the theoretical determinations. 
