Acknowledgements
We would like to thank the participating farmers in the Atwima
Nwabiagya District, Ghana. We would also like to thank two
anonymous journal reviewers for constructive and insightful comments on the manuscript. We are grateful to the Faculty of Renewable
Natural Resources and the Technology Consultancy Centre both of the
Kwame Nkrumah University of Science and Technology, Ghana, for
material support and to the Research and Conference Committee for
fi nancial support. We would like to acknowledge fi eld and laboratory
assistance by staff of the Soil Research Institute of Ghana, Kumasi.