Swanepoel, Pieter AndreasBotha, P.R. (Philippus Rudolph)Truter, Wayne FrederickKaren, A.Surridge-Talbot, A.K.J. (Angela Karen Joanna)2011-08-082011-08-082010-06-01Swanepoel, PA, Botha, PR, Truter, WF, Karen, A & Surridge-Talbot, J 2010, 'The quantification of biological nitrogen fixation by Trifolium repens as affected by soil organic matter', Elsenburg Joernaal, pp. 2-5.0250-1538http://hdl.handle.net/2263/17017Management of the soil environment must receive special attention. Future research will not only be on increasing soil quality, but also on rectifying problems caused by our abusive past practices. Soil organic C is the main factor that influences soil quality, which will in turn determine sustainability and profitability.enDepartement Landbou: Wes-Kaap/Department of Agriculture: Western Cape/Department of Agriculture: Western CapeSoil organic matterHumusSoils -- QualityNitrogen -- FixationWhite cloverThe quantification of biological nitrogen fixation by Trifolium repens as affected by soil organic matterArticle