help
Metodo Rapido de Determinaçao das Relaçoes ki e kr em Solos [Monograph]
Chagas, G.B. \ Carvalho, T.de \ 1956
soil chemistry - analytical methods - Brazil
help
The Tertiary Bauxite Belt on Tectonic Uplift Areas in the Serra da Mantiqueira, South-East Brazil. Contributions to Sedimentology 17. [Monograph]
Valeton, I. \ Beissner, H. \ Carvalho, A. \ 1991
Brazil
help
Rio Negro, Rich Life in Poor Water. Amazonian Diversity and Foodchain Ecology as Seen Through Fish Communities. [Monograph]
Goulding, M. \ Carvalho, M.L. \ Ferreira, E.G. \ 1988
South America
help
Physiography and Soils of the Eastern Amazon Region. (Physiography and Soils of Pará and Amapá. [Map]
Carvalho, D.J. \ 1986
physical geography - soil - South America - Brazil
help
Mapa Exploratório dos Solos. Mapa Basico: USAF Operational Navigation Chart. Folha ONC-27. [Map]
Carvalho, J.S. \ Oliveira, L.F. \ 1972
soil - South America - Brazil
help
Mapa de Aptidao Agrícola dos Solos do Oeste do Estado do Paraná: Sistema de Manejo Pouco Desenvolvido. (Escala 1:300,000) [Map]
Carvalho, A.P. de \ Hochmüller, D.P. \ Larach, J.O.I. \ (et al.) \ 1976
agriculture - crops - soil fertility - soil water - erosion - Brazil
help
Mapa de Aptidao Agrícola dos Solos do Oeste do Estado do Paraná: Sistema de Manejo Desenvolvido. (Escala 1:300,000) [Map]
Carvalho, A.P. de \ Hochmüller, D.P. \ Larach, J.O.I. \ (et al.) \ 1976
agriculture - crops - soil fertility - soil water - erosion - Brazil
help
Aptidao Agrícola dos Solos do Oeste do Estado do Paraná (Área 3). (Interpretaçao do Levantamento de Reconhecimento dos Solos). Boletim Técnico no. 50. (+ 2 maps) [Monograph]
Carvalho, A.P. de \ Hochmüller, D.P. \ Larach, J.O.I. \ (et al.) \ 1976
agriculture - crops - soil fertility - soil water - Brazil
help
Levantamento de Reconhecimento dos Solos do Noroeste do Estado do Paraná (Informe preliminar). . (+ Map, scale 1: 400,000) [Monograph]
Larach, J.O.I. \ Carvalho, A.P. de \ (et al.) \ 1970
soil classification - mapping - analytical methods - Brazil
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