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Phosphorus forms in cultivated indian black earth (anthrosols) of varying texture in the Brazilian Amazon. Despite the agricultural importance of India Black Earth (IBE) in the Amazon region, there are few studies that report on the relation between soil texture and chemical fertility of IBE. These soils o... ... Repository: BDPA Publication year: 2009
Phosphorous forms in cultivated indian black earth (anthrosols) of varying texture in the brazilian Amazon. Apesar da importância das Terras Pretas de Índio (TPI) na Amazônia - solos de origem pré-colombiana que ocorrem na região do vale do Amazonas/Solimões, cuja fertilidade está relacionada a elevados teo... ... Repository: BDPA Publication year: 2009
Char and humin fractions in Amazonian dark earths. The high and specific SOM contents of the Amazonian Dark Earths (ADE, Terra Preta de Índios), and their high contents of P and Ca provide high natural fertility to the soils. Char or black carbon (B C... ... Repository: BDPA Publication year: 2008
Metodologia para a Geração de Mosaicos Semicontrolados a partir de Imagens Orbitais Provenientes do Google Earth. Repository: BDPA Publication year: 2015
Multi-functionality of Livestock, Always a Chance for Pioneers of Amazonia. Repository: BDPA Publication year: 2016
Extraction and characterisation of humin fraction from Amazonian anthropogenic dark earth soils ("Terra Preta de Indios"). Humin, the humic fraction that is insoluble in water at all pH values, typically comprises more than 50% of soil organic matter (1). Because of the difficulties in isolation, humin compositions and pr... ... Repository: BDPA Publication year: 2008

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