eaperkowski/NxCO2xI_ms_data: v2.0.0

Repository contains data and analyses reported in Perkowski et al. (in prep), which reports findings from a growth chamber experiment that grew soybean (Glycine max L. (Merr)) seedlings under full factorial combinations of two CO2 treatments, two inoculation treatments, and nine soil nitrogen fertilization treatments. New in v2.0: add relative allocation traits (root:shoot, leaf mass fraction, stem mass fraction, root mass fraction) following recommendation by reviewer. Updates to plots are also included in this release.