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Date: 2004-01-11 02:36:00Soil Agriculture International Humic Substances Society Humic acid Land management Organic matter Humus Disinfection by-product Thomas Abbt Soil science Chemistry Composting | 1 NEWSLETTERAdd to Reading ListSource URL: www.ihss.humus.ruDownload Document from Source WebsiteFile Size: 338,55 KBShare Document on Facebook |