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Spectral regionalization of tropical soils in the estimation of soil attributes Rev. Ciênc. Agron.
Demattê,José A. M.; Bellinaso,Henrique; Araújo,Suzana Romeiro; Rizzo,Rodnei; Souza,Arnaldo Barros.
ABSTRACT Conventional soil analysis produces large amount of residues and demand resources and time consuming. The construction of soil spectral database for estimating soil attributes is the newest alternative on soil mapping. The objective in this study was to build spectral libraries and study the quality of the generated prediction models for soil attributes. It was obtained 7185 soil spectral (400-2500 nm) in laboratory with respective soil analysis. The spectral libraries "general", "regional", and "local" were generated from these spectral readings. The general spectral library contained the full range of data and several states, the regional libraries contained data from geographically close municipalities, and the local libraries contained soil...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spectroradiometry; Soil analysis; Spectral library; Soil mapping; Databank.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400589
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