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Author(s): FRANCHINI, C. A.; OLIVEIRA, T. L.; TEIXEIRA, W. G.; KUZNETSOV, A.; ACHETE, C. A.

A detailed study of a soil in every country is of a paramount importance, because it determines an entire economic strategy. The mineralogical properties of soils have been studied in the world for mo... ...

Repository: BDPA     Publication year: 2015

Author(s): PEIXOTO, A. P. B.; SANTANA, T. V. F. de; HISSA, H. R.; SILVA, E. F. da; MACEDO, J. R. de; CAPECHE, C. L.; OLIVEIRA, M. C. N. de

É usual expressar as frações granulométricas de solo como conteúdos de areia, silte e argila e usá-las para descrever e definir classes de solo. Em função disso, este trabalho se propõe a modelar o pa... ...

Repository: BDPA     Publication year: 2011

Author(s): DELARMELINDA, E. A.; LOSS, A.; ANJOS, L. H. C. dos; PEREIRA, M. G.; WADT, P. G. S.

O presente estudo tem como objetivos quantificar o carbono do solo e a sua distribuição nas frações mineral e particulada, bem como as frações oxidáveis, em solos sob pastagem, no Estado do Acre, que... ...

Repository: BDPA     Publication year: 2010

Author(s): FONTES, M. P. F.; XAVIER, B. T. L.; KER, J. C.; LIMA, H. N.; SOUZA, K. W.

ABSTRACT: The Amazonia Forest is an important biome that possesses great diversity of fauna and flora, which can play a significant role in several science areas, specially, the gene reserve for the f... ...

Repository: BDPA     Publication year: 2014

Author(s): BEZERRA, M. A. da S.; SILVA, L. M. da; PEREIRA, M. G.; VIANA, J. H. M.; DONAGEMMA, G. K.; WADT, P. G. S.

Este trabalho apresenta os procedimentos relativos ao método de referência para determinar frações de areia, silte e argila em solos do Acre.

Repository: BDPA     Publication year: 2021

Author(s): VALLADARES, G. S.; GREGO, C. R.; BATISTELLA, M.

The aim of this paper was to understand the spatial variability of soil physical attributes within the superficial layer (0-10 cm) in an area of agricultural colonization in Machadinho d?Oeste (RO). T... ...

Repository: BDPA     Publication year: 2006

Author(s): RIBEIRO, F. C. A.; LAURIA, D. da C.; SILVA, J. I. R.; LIMA, E. S. A.; AMARAL SOBRINHO, N. M. B. do; PEREZ, D. V.

A first large-scale systematic survey of natural radioactivity contents of soils of the state of Rio de Janeiro is presented, focused on the establishment of Quality Reference Values (QRVs). Undisturb... ...

Repository: BDPA     Publication year: 2018

Author(s): BONONI, L.; VASCONCELLOS, R. L. F.; TAKETANI, R. G.; VILELA, E. S. D.; MOITINHO, M. A.; MELO, I. S. de

Abstract: The average global temperature has increased and will continue increasing, with forecast of up to 5.8° C by the end of this century as a result of the increase in the concentration of greenh... ...

Repository: BDPA     Publication year: 2015

Author(s): ROCHA JUNIOR, P. R. da; DONAGEMMA, G. K.; ANDRADE, F. V.; PASSOS, R. R.; BALIEIRO, F. de C.

Pastures cover, in Brazil, around 165 million ha, most of them are at some degradation level. Recovering these pastures is essential. The objective of this study was to evaluate the sensibility of soi... ...

Repository: BDPA     Publication year: 2022

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

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