Soil and crop growth variability in the Sahel: Highlights of research (1990-95) at ICRISAT Sahelian Center - Brouwer, J.; Bouma, J. (Andhra Pradesh (India), 1997)
Ilus.; 31 ref.
Keywords: SUELO; CULTIVO; AGOTAMIENTO DEL SUELO; ESTIERCOL; ABONOS ORGANICOS