@INBOOK {P.M.:2000, title = {Economic considerations for recommending soil fertility technologies: the case of cut-and-carry system of mulch production in south-western Nigeria In: Farmers and scientists in a changing environment: assessing research in West Africa}, author = {Kormawa, P. and Kamara, A. }, editor = {Renard, G. and Krieg, S. and Lawrence, P. and Von Oppen, M. }, year = {2000}, pages = {99--109}, publisher = {Margraf Verlag}, address = {Wikersheim, Germany}, }