@PROCEEDINGS {VAN-ASTEN:2012, title = {Soil fertility in banana-coffee systems achieving profitable and sustainable systems}, author = {Van Asten, P. }, booktitle = {Proceedings of the consultative workshop on the draft national fertiliser policy and regulations.}, year = {2012}, month = {July}, organization = {Economic Policy Research Center (EPRC)}, address = {Kampala, Uganda.}, }