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Fig. 2. Ecotoxic response of soils contaminated with copper before aging (t = 0 wk) (black bars) and after aging (t = 16 wk) (white bars), * p < 0.05, ** p < 0.01. (A) Inhibition of barley shoot elongation, (B) inhibition of barley root elongation, (C) mortality of compost worm.
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