Szukana fraza: [Abstract = "Composting of communal sewage sludge requires supplementation with some addition of organic wastes poor in nitrogen and characterised by structure\-forming properties. In an experiment carried out in conditions of an open compost plant, investigations were carried out aiming at examining changes taking place in the course of composting of sewage sludge supplemented with sawdust, wood chips and straw in the content of macroelements."]

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