Estructura de las comunidades y dinámica de las poblaciones de lombrices de tierra en las sabanas naturales y perturbadas de Carimagua (Colombia). Tesis (Dr. Biología)
Condensed tannins in tropical forage legumes : Their characterisation and study of their nutritional impact from the standpoint of structure-activity relationships. Thesis (Ph.D.)
Microbial biomass, microbial activity, and carbon pools under different land-use systems in the Brazilian cerrados
Side-stepped by the green revolution: farmers` traditional rice cultivars in the uplands and rainfed lowlands
Phosphorus pools in bulk soil and aggregates of differently textured oxisols under different land-use systems in the Brazilian cerrados
Acid monophosphatase: an indicator of phosphorus mineralization or of microbial activity? A case study from the Brazilian cerrados