Farmers' perceptions of soil fertility in Benin /
Mulder, Ingrid.
International Institute for Environment and Development.
Vrije Universiteit te Amsterdam.Instituut voor Milieuvraagstukken
Collaborative Research in the Economics of Environment and Development.
[London] : [International Institute for Environment and Development],
[2000?].
Includes bibliographical references (p. 38)
Soil fertility
Soil productivity
Crop yields
Crops and soils
Soil management
Cropping systems