Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones Author/Editor(s): Were, B.A. Otinga, A.N.Okalebo, J.R.Onyango, D.A.Ogega, J.K.Othieno, C.Pypers, P.Okello, D.K.Merckx, R.Date of publication: 2012RUFORUM Conferences and Workshops Read more about Improving Biological Nitrogen Fixation (BNF) by Groundnuts (Arachis hypogea L.) Grown in Acid Soils Amended with Calcitic and Dolomitic Limestones