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 Author(s): PINHEIRO, E. F. M.; CEDDIA, M. B.; CLINGENSMITH, C. M.; GRUNWALD, S.; VASQUES, G. de M. Visible and near-infrared diffuse reflectance spectroscopy (VIS-NIR) has shown levels of accuracy comparable to conventional laboratory methods for estimating soil properties. Soil chemical and physic... ... |
 Author(s): LÁZARO, M. L.; VASQUES, G. de M.; MATA, M. G. F. da; GUERRA, J. G. M.; CEDDIA, M. B.; PINHEIRO, E. F. M. The aim of this study was to compare SOM contents and associated Vis-NIR spectral curves among areas with different agroecological production systems/treatments. |
 Author(s): TAVARES, O. C. H.; TAVARES, T. R.; PINHEIRO JUNIOR, C. R.; SILVA, L. M. da; WADT, P. G. S.; PEREIRA, M. G. The southwestern region of the Amazon has great environmental variability, presents a great complexity of pedoenvironments due to its rich variability of geological and geomorphological environments,... ... |
 Author(s): OLIVEIRA, J. F. de; BROSSARD, M.; CORAZZA, E. J.; MARCHAO, R. L.; GUIMARÃES, M. de F. ABSTRACT: In soil science, structural features of soils are an important attribute; soils can be characterised by proportional size distribution of aggregates and the pore space between and within tho... ... |
 Author(s): VICENTE, L. E.; SOUZA FILHO, C. R. de Soil characteristics provide important support for understanding transformations that occur in environmental systems. Physical characteristics and chemical compositions of soils controlled by pedogene... ... |
 Author(s): COSTA, M. C. A.; MATALLO, M. B.; FERREIRA, M. M. C.; QUEIROZ, S. C. do N. de; ALMEIDA, S. D. B.; FRANCO, D. A. S. Abstract: Shikimic acid is a natural organic compound produced in the biochemical pathways of eukaryotic organisms and is generally utilized as a starting material of the antiviral drug Oseltamivir (T... ... |
 Author(s): CANIZELLA, B. T.; VENDRAME, P. R. S.; MARQUEZIN, P. P.; FELIX, J. C.; BRITO, O. R.; ABADE, V. S.; MARCHAO, R. L. A textura dos solos tem sido determinada através de métodos analíticos que muitas vezes são caros e lentos. Ademais, em solos muito argilosos, a dispersão química e mecânica nem sempre é eficiente em... ... |
 Author(s): MARTINS, F. E. B.; BOMFIM, M. A. D.; GALVANI, D. B.; FERNANDES, A. M. F.; SANTOS, S. F. dos; DUTRA, M. de S.; COSTA, H. H. A.; MACHADO, H. C. Resumo: A espectroscopia de refletância na região do infravermelho próximo (NIRS) propicia determinar a composição e qualidade de alimentos como alternativa aos métodos convencionais. Com a pesquisa,... ... |
 Author(s): FONGARO, C. T.; DEMATTÊ, J. A. M.; RIZZO, R.; SAFANELLI, J. L.; MENDES, W. de S.; DOTTO, A. C.; VICENTE, L. E.; FRANCESCHINI, M. H. D.; USTIN, S. L. Abstract: Soil mapping demands large-scale surveys that are costly and time consuming. It is necessary to identify strategies with reduced costs to obtain detailed information for soil mapping. We aim... ... |
 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... ... |
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