Total biomass decreased significantly with increasing of soil Cr concentration, while economic coefficient showed no significant change.
随着土壤铬含量的增加，水稻生物产量显著下降，经济系数无明显变化。
Total biomass decreased significantly with increasing of soil Cr concentration, while economic coefficient showed no significant change.
随着土壤铬含量的增加，水稻生物产量显著下降，经济系数无明显变化。
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