Fertility of Soils: A Future for Farming in the West African Savannah (Softcover Reprint of the Original 1st 1992)Paperback - Softcover Reprint of the Original 1st 1992, 30 December 2011
The results of 30 years of investigation in the West-African savannah
were re-interpreted from the point of view of modern agronomical and
environmental sciences. This example can be seen as a model for
comparable regions worldwide.