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The role of the humic substances in the fractioning of heavy metals in Rodrigo de Freitas Lagoon, Rio de Janeiro - Brazil. Author(s): FONSECA, E. M. da; BAPTISTA NETO, J. A.; MCALISTER, J.; SMITH, B.; FERNANDEZ, M. A.; BALIEIRO, F. C. One of the main results of the processes related to urbanization is the contamination of the adjacent water bodies. Inserted in this context, the Rodrigo de Freitas lagoon is situated in the south zon... ... Repository: BDPA Publication year: 2014
Concentration of airbone trace metals in a bus station with a high heavy-duty diesel fraction. Author(s): LOYOLA, J.; ARBILLA, G.; QUITERIO, S. L.; ESCALEIRA, V.; BELLIDO, A. V. Total particulate matter (TSP) and PM10 samples were collected in a bus station, in the period of August 2006 to February 2007. Buses are the only significant emission sources in this area once light... ... Repository: BDPA Publication year: 2009
Soil organic matter fractions as a short-term indicator of carbon turnover under agricultural systems. Author(s): MATOS, E. da S.; CONCEIÇÃO, M. C. G. da; BIDONE, E. G.; RODRIGUES, R. de A. R.; CORDEIRO, R. C. Integrated crop-livestock-forest (ICLF) systems has been considered as an important strategy to enhance C sequestration. However, changes in soil C due to agricultural management practices, in general... ... Repository: BDPA Publication year: 2017
Organic matter fractions in a Quartzipsamment under cultivation of irrigated mango in the lower São Francisco Valley region, Brazil. Author(s): CARDOSO. J. A. F.; LIMA, A. M. N.; CUNHA, T. J. F.; RODRIGUES, M. A.; HERNANI, L. C.; AMARAL, A. J. do; OLIVEIRA NETO, M. B. de In this context, the aim of the present study was to evaluate the impact of growing irrigated mango on the organic carbon (OC) stocks, the C in humic substances, and the C of the heavy fraction and li... ... Repository: BDPA Publication year: 2015
Zinc fractionation in cow, goat, sheep and soybean milk samples using gel-electrophoresis and determination by electrothermal atomic absorption spectrometry (ETAAS). Author(s): BOSSU, C. M.; GIGLIOTI, R.; OLIVEIRA, M. C. de S.; OLIVEIRA, P. V. DE; NOGUEIRA, A. R. de A. A screening method for zinc levels in different milk samples (raw cow, raw sheep, UHT cow, UHT goat and soybean milk base) was performed to establish the Zn levels' differences in protein samples. The... ... Repository: BDPA Publication year: 2021
Lignocellulosic biomass: organosolv process for lignocellulosic biomass fractionation. Author(s): GAMBETTA, R. Organosolv process for lignocellulosic biomass fractionation that eliminates the washing step and decreases the precipitation of dissolved/extracted lignin on cellulose fibers. Repository: BDPA Publication year: 2021
A non-archimedean dea model to assess group comparisons. Author(s): SOUZA, G. da S. e; GOMES, E. G. We consider the use of the non-Archimedean infinitesimal epsilon in DEA-CCR models. The application of interest is defined by the performance measure of the Brazilian Agricultural Research Corporation... ... Repository: BDPA Publication year: 2016
Chemical and physical fractions of soil organic matter under various management regimes in Roraima, Brazil. Author(s): GUARDIOLA, M. D. E.; VALE JÚNIOR, J. F. do; SILVA, E. E. da; ROSSI, C. Q.; PEREIRA, M. G. Repository: BDPA Publication year: 2017
Formas de P em Latossolo Vermelho-Amarelo sob pastagem após dois e sete anos da adubação fosfatada. Author(s): SELHORST, B. S.; SCHLINDWEIN, J. A.; MARCOLAN, A. L.; PANSONATO, B. da S.; VALOIS, C. A. da S. Em solos mais intemperizados como os Latossolos, o uso de adubações fosfatadas, pode garantir a maior disponibilidade de fósforo para as plantas. Esse estudo teve por objetivo avaliar as formas de fós... ... Repository: BDPA Publication year: 2022
Phosphorus Fractions and Their Transformations in Entisol. Author(s): ALOVISI, A. M. T.; ALOVISI, A. A.; SERRA, A. P.; TOKURA, L. K.; DAVIDE, L. M. C.; LOURENTE, E. R. P.; SILVA, R. S. da; TOKURA, W. I.; SOUZA, D. A. de; MAR, G. D. do The availability of phosphorus in the soil is a factor that directly interferes with its absorption by plants. This availability can be influenced by the texture, dose of the phosphate fertilizer and... ... Repository: BDPA Publication year: 2019

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