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	Provedor de dados REA (1) Autor Brandão,Flavia J. C (1) Chioderoli,Carlos A (1) Rodrigues,Marcos S (1) Rosalen,David L (1) Siqueira,Diego S (1) Palavra-chave Compaction (1) GNSS (1) Precision agriculture (1) Soil water content (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2011 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última GPS receivers for georeferencing of spatial variability of soil attributes REA Rosalen,David L; Rodrigues,Marcos S; Chioderoli,Carlos A; Brandão,Flavia J. C; Siqueira,Diego S. The characterization of the spatial variability of soil attributes is essential to support agricultural practices in a sustainable manner. The use of geostatistics to characterize spatial variability of these attributes, such as soil resistance to penetration (RP) and gravimetric soil moisture (GM) is now usual practice in precision agriculture. The result of geostatistical analysis is dependent on the sample density and other factors according to the georeferencing methodology used. Thus, this study aimed to compare two methods of georeferencing to characterize the spatial variability of RP and GM as well as the spatial correlation of these variables. Sampling grid of 60 points spaced 20 m was used. For RP measurements, an electronic penetrometer was used... Tipo: Info:eu-repo/semantics/article Palavras-chave: Precision agriculture; GNSS; Compaction; Soil water content. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000600013 Registros recuperados: 1 Primeira ... 1 ... Última

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