@ARTICLE {I.:2000, title = {Ameliorating acid infertile rice soil with organic residue from nitrogen fixing trees}, author = {Baggie, I. * and Zapata, F. and Sanginga, P. and Danso, S. K. A. *}, journal = {Nutrient Cycling in Agroecosystems}, year = {2000}, volume = {57}, number = {2}, pages = {183--190}, }