individual publications

• academic article

  • Long term effects of manure, charcoal and mineral fertilization on crop production and fertility on a highly weathered Central Amazonian upland soil.  Plant and Soil.  291:275-290. 2007
  • Weed composition and cover after three years of soil fertility management in the central Brazilian Amazon: compost, fertilizer, manure and charcoal applications.  Weed Biology and Management.  5:69-76. 2005
  • Nutrient availability and leaching in an archaeological Anthrosol and a Ferralsol of the Central Amazon basin: fertilizer manure and charcoal amendments.  Plant and Soil.  249:343-357. 2003

• chapter

  • Microbial response to charcoal amendments of highly weathered soils and Amazonian Dark Earths in Central Amazonia – preliminary results.  Amazonian Dark Earths: Explorations in Time and Space. 195-212. 2004

• conference paper

  • Slash and char as alternative to slash and burn – soil charcoal amendments maintain soil fertility and establish a carbon sink.  International Agrichar Initiative (IAI) 2007 Conference. 32. 2007
  • Fate if applied N fertilizer in mixed cropping systems in the central Amazon.  Proceedings of the German-Brazilian Workshop. 859-862. 2002
  • Slash-and-char - a feasible alternative for soil fertility management in the central Amazon?.  17th World Congress of Soil Science. 1-12. 2002