Advances in improving agricultural profitability and overcoming land degradation in savanna and hillside agroecosystems of tropical America

Ayarza, Miguel Angel; Amézquita Collazos, Edgar; Rao, Idupulapati Madhusudana; Barrios, Edmundo; Rondón, Marco Antonio; Rubiano Sanabria, Yolanda; Quintero, Marcela. 2007. Advances in improving agricultural profitability and overcoming land degradation in savanna and hillside agroecosystems of tropical America . In: Bationo, André; Waswa, Boaz S.; Kihara, Job; Kimetu, Joseph (eds.). Advances in integrated soil fertility management in Sub-Saharan Africa: Challenges and opportunities . Springer, Dordrecht, NL. p. 209-229.