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Humic Acids of the Amazonian Dark Earth Soils: Terra Preta De Índio. Author(s): CUNHA, T. J. F.; MADARI, B. E.; MARTIN NETO, L.; CANELLAS, L. P.; SIMOES, M. L.; SILVA, W. T. L. da; MILORI, D. M. B. P.; RIBEIRO, L. P.; ANJOS, L. H. C.; SANTOS, G. de A. The humic acid fraction (HA) of some Amazonian dark earth soils (Terra Preta de Índio) from Brazil were characterized using ultraviolet-visible (UV-Vis), Fourier transform diffuse reflectance infrared... ... Repository: BDPA Publication year: 2006
Studies of the compositions of humic acids from Amazonian Dark Earth soils. Author(s): NOVOTNY, E. H.; AZEVEDO, E. R. de; BONAGAMBA, T. J.; CUNHA, T. J. F.; MADARI, B. E.; BENITES, V. de M.; HAYES, M. H. B. The compositions of humic acids (HAs) isolated from cultivated and forested "Terra Preta de Índio" or Amazonian Dark Earth soils (anthropogenic soils) were compared with those from adjacent non-anthro... ... Repository: BDPA Publication year: 2007
Spectroscopic characterization of humic and fulvic acids in soil aggregates, Brazil. Author(s): MACHADO, W.; FRANCHINI, J. C.; GUIMARAES, M. de F.; TAVARES FILHO, J. Repository: BDPA Publication year: 2020
Terra preta de indio "Dark Earth Soils": chemical and spectroscopic characterization of humic acids. Author(s): CUNHA, T. J. F.; MADARI, B. E.; MARTIN NETO, L.; CANELLAS, L. P.; NOVOTNY, E. H.; MELO, V. B.; SIMÕES, M.; SILVA, W. T. L. da; MILORI, D.; PETRERE, V. G.; SANTOS, G. de A. The HA of Amazonian dark earth soils (Terra Preta de Índio) from Brazilian territory were characterized using ultraviolet-visible, Fourier transform diffuse reflectance infrared, fluorescence excitati... ... Repository: BDPA Publication year: 2007
Spectroscopy characterization of humic acids isolated from Amazonian dark earth soils (Terra Preta De Índio). Author(s): CUNHA, T. J. F.; NOVOTNY, E. H.; MADARI, B. E.; MARTIN NETO, L.; REZENDE, M. O. de; CANELAS, L. P.; BENITES, V. de M. Description and morphologic characterization; Extraction, chemical fractionation and purification of the humic material; DRIFT Spectroscopy analysis. Repository: BDPA Publication year: 2009
Chemical composition of humic acids extracted from soils influenced by ancient charcoal production in Rio de Janeiro - Brazil. Author(s): RODRIGUES, A. F.; NOVOTNY, E. H.; OLIVEIRA, R. R. During the late nineteenth century, some areas in Rio de Janeiro - Brazil - has undergone remarkable transformation of the forest arising from ancient charcoal activity carried out by ex-slaves. Nowad... ... Repository: BDPA Publication year: 2014
Structural characteristics of soil humic acids in coffee-cultivation systems: 13C NMR and analytical pyrolysis. Author(s): XAVIER, F. A. da S.; MENDONÇA, E. de S.; CARDOSO, I. M.; ROIG, A.; GONZÁLEZ-VILA, F. J. Structural characterization of soil organic matter is still poorly understood in Brazilian agroecosystems. We aimed to identify the qualitative changes of soil humic acids as influenced by agroforestr... ... Repository: BDPA Publication year: 2011
Can co-application of silicate rock powder and humic-like acids increase nutrient uptake and plant growth in weathered tropical soil? Author(s): BUSATO, J. G.; SANTOS, L. F. dos; PAULA, A. M. de; SODRÉ, F. F.; DOBBSS, L. B.; MARTINS, E. de S.; JINDO, K. Silicate rock powder (SRP) restores the fertility of weathered soils. However, its slow nutrientrelease is a disadvantage for short-duration crops. Humic-like acids (HLAs) are plantbiostimulants that... ... Repository: BDPA Publication year: 2022
Evaluation of the humidification degree of humic acids extracted from soil under application of wastewater by fluorescence spectroscopy and laser-induced fluorescence (LIF). Author(s): SANTOS, C. H. dos; MILORI, D. M. B. P.; MARTINS, B. H.; CARDINALI, M. C. do B.; MARTIN NETO, L.; MONTES, C. R.; MELFI, A. J. Repository: BDPA Publication year: 2010
Structural features of humic acids extracted from integrated crop-livestock-forest system. Author(s): TADINI, A. M.; MARTIN NETO, L.; BERNARDI, A. C. de C.; OLIVEIRA, P. P. A.; MILORI, D. M. B. P.; PEZZOPANE, J. R. M. Soil organic matter (SOM) and their humic fractions (e.g., Humic Acids, HA) are considered a relevant soil quality indicator, due to its direct relation with biological, chemical and physical soil pro... ... Repository: BDPA Publication year: 2021

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