Ecological risks of the use of sewage sl
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P. AndrΓ©s
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Article
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1999
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John Wiley and Sons
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English
β 164 KB
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Experimental plots were laid out in a limestone quarry in Girona (Catalonia, Spain) to test the eects of sewage sludge on the soil microarthropod populations. Two dierent doses of sludge (7 . 5 per cent and 15 per cent) were applied to fertilize soil that was used to restore a quarry after opencast