Fig. 1. Final mean total (shoot + root) dry mass of quailbush grown in mine tailings-compost mixtures (mean + 1 SD). Treatment designations are as follows: K4 (pH 2.7); K6 (pH 5.7); OS (offsite control); CC (compost control); number following K4 and K6 are percentage mine tailings. A one-way ANOVA determined there were significant differences between treatments (p < 0.0001). All plants in the K4–100 treatment died; therefore, this data was not included in the analysis. Means with different letters are significantly different at p < 0.05 (Tukey's HSD test).