A regional experiment suggests that soil texture is a major control of N2O emissions from tile-drained winter wheat fields during the fertilization period

► N2O emission factors decreased exponentially with soil clay content. ► Effects of soil pH and Mg on N2O emission factors were considered indirect. ► None of the measured soil properties correlated with potential denitrification rates. ► Soil WFPS and N2O flux were not significantly different between sites along a slope.