Soil quality in semiarid agriculture = : Qualite du sol en agriculture semi-aride - Stewart, John (Saskatchewan Institute of Pedology, 1990)
Contenido: v. 1. Keynote papers and workshop report-- v. 2. Local and regional concerns on soil quality (Poster papers).
Proceedings of an international conference sponsored by the Canadian International Development Agency and hosted by the University of Saskat chewan, Canada as part of the first Global Agricultural Technology Exposition, June 11-16, 1989.
Incluye bibliografias
Keywords: REGIONES ARIDAS