Clarifications on statements in Badía et al. (2013), Geoderma 193–194, 13–21

Both fragmental scientific quotations and misquotations can contribute to the spread of mistakes and cast confusion upon future research. We discuss several erroneous or conflictive statements and some misquotations found in an article published in GEODERMA. Many of the flaws are related with the occurrence of gypsum in soils and with the use of the term ‘equivalent’ in the designation of analytical results. Our reading of the subject article raises concerns about its validity, with practical implications on the future use of the concepts and data.