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Date: 2013-09-03 08:42:20Organic gardening Nitrogen metabolism Fertilizers Composting Humic acid Organic fertilizer Amino acid Soil Leonardite Chemistry Agriculture Land management | Stand August[removed]Organic Biostimulator WATER SOLUBLE DESCRIPTIONAdd to Reading ListSource URL: www.humintech.comDownload Document from Source WebsiteFile Size: 184,30 KBShare Document on Facebook |