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Chemical changes in an Oxisol cultivated with maize (Zea mays, L.) after six years disposal of sewage sludge
Daniel Vidal Pérez; Sarai De Alcantara; Germana Breves Rona; José Carlos Polidoro; Wanger Bettiol
International Journal of Environmental Engineering (IJEE), 2012 Vol.4 No.3/4, pp.352 - 371
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