Improving biological nitrogen fixation (BNF) by groundnuts grown in acid soils through amendment with calcitic and dolomitic limestones Author/Editor(s): Ogega, J.K.Onyango, D.A.Otinga, A.N.Okalebo, J.R.Pypers, P.Okello, D.K.Merckx, R.Othieno, C.Were, B.A. Date of publication: 2010RUFORUM Conferences and Workshops Read more about Improving biological nitrogen fixation (BNF) by groundnuts grown in acid soils through amendment with calcitic and dolomitic limestones