TY  - VF
AU  - Roth,U.
ED  - ICRISAT
TI  - Soil fertility management in the Sahel:  A challenge to farmers and researchers
U1  - 0057-V 
PY  - 1994///
CY  - Stuttgart (Germany)
PB  - ICRISAT|University of Hohenheim, 
KW  - Africa
KW  - Africa south of Sahara
KW  - Sahel
KW  - Soil conservation
KW  - Soil improvement
KW  - Soil management
KW  - Soil fertility
KW  - AGROVOC
ER  -