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Evolution of maize residues into SOM in a study of two years incubation. Authorship: SONG, G. X.; NOVOTNY, E. H.; HAYES, M. H. B. Maize (Zea mays, a C4 plant) stover was incubated in a long-term cultivated soil for 24 months in order to better understand the transformation of crop residues into soil organic matter. Humic fractio... ... Repository: BDPA Publication year: 2018
Lessons from the Terra Preta de Índios of the Amazon region for the utilisation of charcoal for soil amendment. Authorship: NOVOTNY, E. H.; HAYES, M. H. B.; MADARI, B. E.; BONAGAMBA, T. J.; AZEVEDO, E. R. de; SOUZA, A. A. de; SONG, G.; NOGUEIRA, C. M.; MANGRICH, A. S. Neste trabalho faz-se a divulgação do potencial de carvões e resíduos orgânicos parcialmente carbonizados visando obter materiais que mimetizam a matéria orgânica do solo das Terras Pretas de Índio da... ... Repository: BDPA Publication year: 2009
Insights into the composition of humin from an irish grassland soil. Authorship: BYRNE, C. M.; NOVOTNY, E. H.; HATCHER, P. G.; HAYES, M. H. B. Humin is defined as the fraction of the humic substances (HS) that is insoluble in aqueous solution at any pH value (1). Because of its insolubility it has been the least studied of all the humic frac... ... Repository: BDPA Publication year: 2008
Char and humin fractions in Amazonian dark earths. Authorship: SONG, G.; NOVOTNY, E. H.; HAYES, M. H. B.; AZEVEDO, E. R. de; BONAGAMBA, T. J. 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
Biochar and it's characterisations. Authorship: HAYES, M. H. B.; NOVOTNY, E. H.; FLANAGAN, R. NMR provides a powerful tool for studies of compositions of Biochars. However, the usual NMR procedures used for humic and SOM studies do not meet specific requirements for Biochars because pyrogenic... ... Repository: BDPA Publication year: 2008
Análise espectroscópica por ressonância magnética nuclear de 13C de huminas de terras pretas de índio. Authorship: NOVOTNY, E. H.; HAYES, M. H. B.; SONG, G.; AZEVEDO, E. R. de; BONAGAMBA, T. J. Repository: BDPA Publication year: 2007
Extração da fração humina e análise espectroscópica por ressonância magnética nuclear (RMN) de 13C. Authorship: SONG, G.; NOVOTNY, E. H.; HAYES, M. H. B.; BONAGAMBA, T. J.; AZEVEDO, E. R. de Repository: BDPA Publication year: 2007

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