Bear, Firman E.
This study conducted at Rutgers University (Bear et al., 1948) is frequently misquoted as evidence supporting the position that organically grown vegetables are significantly superior in minerals and trace elements to conventionally grown vegetables. In reviewing the original publication, one can clearly see that this was not the intention of the study nor does it give support to this premise. The purpose of the study was to compare the mineral composition of vegetables “as one proceeds from south to north and from east to west in the United States.”
Link to source page: http://njaes.rutgers.edu/pubs/bearreport/