individual publications

• academic article

  • Nutrient leaching in a Colombian savanna Oxisol amended with biochar..  Journal of Environmental Quality.  41:1076-1086. 2012
  • Fate of soil-applied black carbon: downward migration, leaching and soil respiration.  Global Change Biology.  16:1366-1379. 2010
  • Maize yield and nutrition during 4 years after biochar application to a Colombian savanna oxisol.  Plant and Soil.  333:117-128. 2010
  • Biological nitrogen fixation by common beans (Phaseolus vulgaris L.) increases with bio-char additions.  Biology and Fertility of Soils.  43:699-708. 2007
  • Soil mineral N dynamics beneath mixtures of leaves from legume and fruit trees in Central Amazonian multi-strata agroforests.  Acta Amazonica.  37:313-320. 2007
  • Bio-char sequestration in terrestrial ecosystems – a review.  Mitigation and Adaptation Strategies for Global Change.  11:403-427. 2006
  • Inorganic and organic phosphorus pools in earthworm casts (Glossoscolecidae) and a Brazilian rainforest Oxisol.  Soil Biology and Biochemistry.  38:553-560. 2006

• chapter

  • Bio-char soil management on highly weathered soils in the humid tropics.  Biological Approaches to Sustainable Soil Systems. 517-530. 2006

• conference paper

  • Fate of biochar applied to a Colombian savanna Oxisol during the first and second years.  International Agrichar Initiative (IAI) 2007 Conference. 34. 2007
  • Field maize yield and yield determining factors for four years following biochar application on a Colombian savanna Oxisol.  International Agrichar Initiative (IAI) 2007 Conference. 32. 2007
  • Spatial variability of soil phosphorus pools in a mixed tree plantation.  Neotropical Ecosystems. 855-858. 2002