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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
Chemical characterization of banana pseudostem fractions. Author(s): PEREIRA, A. L. S.; FEITOSA, J. P. de A.; SOUZA FILHO, M. de S. M. de; CASSALES, A. R.; MORAIS, J. P. S.; BRIGIDA, A. I. S.; ROSA, M. de F. Repository: BDPA Publication year: 2013
Impact of deforestation on the soil physical and chemical attributes, and humic fraction of organic matter in dry environments in Brazil. Author(s): REZENDE, J. S.; FREIRE, F. J.; ARAUJO FILHO, J. C. de; FREIRE, M. B. G. dos S.; ALMEIDA, B. G. de; SANTOS, L. R. C. Deforestation of Caatinga and inadequate land use of these dry environments have impacted soil quality in Northeastern Brazil. The objectives of this study were: (a) to evaluate the effect of deforest... ... Repository: BDPA Publication year: 2022
Biochar stable fraction quantification by thermo-chemical oxidation and assessment by 13C NMR spectrocopy. Author(s): ALHO, C. F. B. V.; CROOS, A.; SOHI, S.; ESTRADA, R. A.; NOVOTNY, E. H.; MAIA, C. M. B. de F.; LELIS, R. C. C. Repository: BDPA Publication year: 2013
Carbon in physical fractions and organic matter chemical composition of an acrisol after amazon forest burning and conversion into pasture. Author(s): LEAL, O. A.; DICK, D. P.; COSTA, F. de S.; KNICKER, H.; CARVALHO JÚNIOR, J. A. de; SANTOS, J. C. The aim of this study was to investigate impacts of Amazon Forest (AF) fire and conversion to pasture on carbon accumulation in particle size fractions and organic matter (OM) composition of an Acriso... ... Repository: BDPA Publication year: 2019
Copper and zinc accumulation, fractionation and migration in vineyard soils from Santa Catarina State, Brazil. Author(s): BRUNETTO, G.; COMIM, J. J.; MIOTTO, A.; MORAES, M. P.; SETE, P. B.; SCHMITT, D. E.; GATIBONI, L. C.; MELO, G. W. B. de; MORAIS, G. P. The purpose of this study was to evaluate Cu and Zn migration and fractions in sandy soil of vineyards. In Urussanga (SC), Brazil, soil samples were collected from a 4-year-old and 15-yearold vineyard... ... Repository: BDPA Publication year: 2018
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
Extraction and characterization of organic fractions isolated from a China Ball Clay quarried in Devon Sout West England. Author(s): MCINERNEV, R.; STUART, J.; NOVOTNY, E. H.; HAYES, M. H. B.; YOUNG, K. China Ball clay has been used for centuries in the tiling and pottery-ware industry. Because it is much finer than the other components in the casting slip the ball clay dominates the particle-particl... ... Repository: BDPA Publication year: 2008
Characterization of organic matter in areas under different covers in the Savannah biome (SP) - Brazil. Author(s): PICCOLO, M. C.; BIELUCZYK, W.; REIS, L. C.; PEREIRA, M. G.; BALIEIRO, F. C. The identification and quantification of labile and recalcitrant soil organic matter (SOM) forms can be used to evaluate the impacts of management on soil quality (SQ). This study characterized the SO... ... Repository: BDPA Publication year: 2014
Organic matter in areas under secondary forests and pasture. Author(s): MENEZES, C. E. G.; GUARESCHI, R. F.; PEREIRA, M. G.; ANJOS, L. H. C.; CORREIA, M. E. F.; BALIEIRO, F. de C.; PICCOLO, M. de C. The objective of this study was to evaluate the soil carbon stock (Stock C) and bulk density, the chemical and granulometric fractions of the organic matter and the isotopic signal of the soil δ1... ... Repository: BDPA Publication year: 2017

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