Monitoring percolation of a conductive tracer, as a proxy for nitrate transport, through glacial till and fractured sandstone in the vadose zone underlying a potato field, using 3D cross-hole electrical resistivity imaging

Shuang Wang1,2, Karl E. Butler1, Danielescu Serban3, Brent Petersen2 and Mark Grimmett4, (1)University of New Brunswick, Earth Sciences, Fredericton, NB, Canada, (2)University of New Brunswick, Dept. of Electrical and Computer Engineering, Fredericton, NB, Canada, (3)Agriculture and Agri-food Canada and Environment and Climate Change Canada, Fredericton Research and Development Centre, Fredericton, NB, Canada, (4)Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, Charlottetown, PE, Canada