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Date: 2013-09-03 08:42:10Organic gardening Nitrogen metabolism Fertilizers Organic fertilizer Humic acid Amino acid Soil Leonardite Fertigation Chemistry Agriculture Land management | Stand August[removed]WATER SOLUBLE Organic BiostimulatorAdd to Reading ListSource URL: www.humintech.comDownload Document from Source WebsiteFile Size: 180,85 KBShare Document on Facebook |