3 treff

Integrated soil fertility management

Bok Engelsk 2000
Nutrients on the move : soil fertility dynamics in African farming systems
edited by Thea Hilhorst and Fred Muchena
Bok Engelsk 2000
Co-managing the commons : setting the stage in Mali and Zambia
Thea Hilhorst and Nettie Aarnink
Bok Engelsk 1999