Thursday, 13 July 2006: 1:15 PM
72: 1.6B Amazonian Dark Earth Soils (Terra Preta and Terra Preta Nova): A Tribute to Wim Sombroek - Oral
Presiding:	Antoinette Winklerprins, Michigan State University
Convenor:	William I. Woods , University of Kansas
	72-1		Bio-char Black Carbon) Stability and Stabilization in Soil. Johannes Lehmann, Cornell Univ, Saran Sohi, Rothamsted Research
	72-2		Compositions of the Humic Acids in Amazonian Anthropogenic Dark Earth Soils. Etelvino H. Novotny, Univ of Limerick, Michael H. Hayes, Univ of Limerick, Eduardo R. De Azevedo, IFSC - USP, Beata E. Madari, Embrapa Arroz e Feijão, Tony J. F. Cunha, Embrapa Semi-Árido, Tito J. Bonagamba, IFSC - USP
	72-3		The Rescue of an Old Indigenous Practice in the Tropics - Using Charcoal to Improve Soil Quality. Wenceslau G. Teixeira, Embrapa Amazônia Ocidental, Gilvan C. Martins, Embrapa Amazônia Ocidental, Murilo R. Arruda, Embrapa Amazônia Ocidental, Christoph Steiner, 1 Institute of Soil Science, Univ of Bayreuth
	72-4		Microbial Activity as Soil Quality Indicator in Annual and Perennial Plantations Treated with Charcoal, Mineral- or Organic Fertilizer in a Highly Weathered Amazonian Upland Soil. Christoph Steiner, 1 Institute of Soil Science, Univ of Bayreuth, Wolfgang Zech, 1 Institute of Soil Science, Univ f Bayreuth, Wenceslau G. Teixeira, Embrapa Amazonia Ocidental
	72-5		New Dark Earth Experiment in the Tailândia City - Pará-Brazil: the Dream of Wim Sombroek. Dirse C. Kern, Museu Paraense Emílio Goeldi, José L. Cometti, Museu Paraense Emílio Goeldi, Maria de Lourdes P. Ruivo, MPEG, Francisco J. Frazão, Museu Paraense Emílio Goeldi, Tarcisio E. Rodrigues, Embrapa Amazônia Oriental, Marcondes L. Costa, Universidade Federal do Pará, Jorge L. Piccinin, Museu Paraense Emílio Goeldi, João B. Rocha, Secretaria de Educação e Cultura do Estado do Pará

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