1. Effects of land clearing methods and post-clearing management on aggregate stability and organic carbon content of a soil in the humid tropics;Alegre;Soil Sci.,1986
2. Tillage systems and soil properties in Latin America;Alegre;Soil Tillage Res.,1991
3. Biomass burning, its history, use, and distribution and its impact on environment quality and global climate;Andrae,1991
4. Management of Problem Soils in Arid Ecosystems;Balba,1995
5. Crop residue and fertilizer management to improve soil organic carbon content, soil quality and productivity in the desert margins of West Africa;Batiano,2000