Biochar improves nitrogen fertilizer efficiency on a highly weathered central Amazonian Ferralsol/8 PDF
Preview Biochar improves nitrogen fertilizer efficiency on a highly weathered central Amazonian Ferralsol/8
Biochar Improves Nitrogen Fertilizer Efficiency On a Amazonian Ferralsol International Symposium 23 – 27 July 2012 Vienna, Austria Christoph Steiner Bruno Glaser Wenceslau G. Teixeira Johannes Lehmann Wolfgang Zech Winfried E. H. Blum Austrian Academy University of Bayreuth of Science Tropical Agriculture constrains Fast depletion of soil organic carbon and nutrients • • low pH and CEC • Fertilizers inefficient, not available or too expensive • Diseases, pests and weeds Anthrosols Brazil – Terra Preta Terra Preta fertility Terra Preta fertility Cash crop farming Irrigated horticulture lawn production C. Steiner, UN climate change conference 2007; Bali – Indonesia, www.biochar.org Terra Preta charcoal Recalcitrance JOHANNES LEHMANN, JOHN GAUNT, and MARCO RONDON Mitigation and Adaptation Strategies for Global CLehhanmgaen 2n0 0e6t al. 2006 Charcoal production and residue use Sieving Production Application Manmade soils Photos: Gilvan Martins, Embrapa, Brazil Photos: Gilvan Martins, Embrapa, Brazil
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