The change in fresh mass of (a) <i>Salvinia auriculata</i> and (b) <i>Taxiphyllum Barbieri</i> over 115 days, after treatment with fertiliser solutions generated after NH₃ stripping (as detailed in Table 3).

Error bars represent the standard deviation of three replicates. Two-tailed t-test significance values (p) are provided of comparisons of treatment replicates with control replicates for each harvest (bottom). (Data presented in Table S4 in S1 File).