Data/hora: 12/06/2024 12:05:49

Provedor de dados: | 124
País: | Brazil
Título: | The relationship between apparent soil electrical conductivity and soil properties
Autores: | Valente,Domingos Sárvio Magalhães; Queiroz,Daniel Marçal de; Pinto,Francisco de Assis de Carvalho; Santos,Nerilson Terra; Santos,Fábio Lúcio.
Data: | 2012-12-01
Ano: | 2012
Palavras-chave: | Precision agriculture; Management zone; Sensors.
Resumo: | Precision agriculture that is based on the physical and chemical properties of soil requires a dense sampling to evaluate spatial variability in the field. This dense sampling is often expensive and time consuming. One technique to reduce the number of samples is to define management zones based on information that is collected in the field. Some researchers have demonstrated the importance of the electrical properties of soil in defining management zones. Thus, the objective of this study was to evaluate the relationship between the apparent soil electrical conductivity and soil properties in mountainous areas of coffee production. The electrical conductivity of soil was evaluated at soil depths ranging from 0.00-0.20 m (EC20) and 0.00-0.40 m (EC40) using a portable meter. The mean values of EC20 and EC40 were 1.80 mS m-1 and 1.22 mS m-1, respectively. Both EC20 and EC40 exhibited comparatively low correlations with the soil properties, whereas higher correlations were obtained for measurements of remaining phosphorus, wherein values of 0.427 and 0.465, respectively, were obtained.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902012000400009
Editor: | Universidade Federal do Ceará
Relação: | 10.1590/S1806-66902012000400009
Formato: | text/html
Fonte: | Revista Ciência Agronômica  v.43 n.4 2012
Fonte: | info:eu-repo/semantics/openAccess