Métodos de determinação da densidade do solo em diferentes sistemas de manejo

• Autor(a) principal: Goncalves, Fernanda Coelho [UNESP]
• Data de Publicação: 2013
• Outros Autores: Marasca, Indiamara [UNESP], Sousa, Saulo Fernando Gomes de [UNESP], Tavares, Leandro Augusto Felix [UNESP], Silva, Paulo Roberto Arbex [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.17224/EnergAgric.2013v28n3p165-169; http://hdl.handle.net/11449/137445
• topic: Physical properties; Volumetric ring; Paraffin sealed clod; Módulo thermal; Imagens de satélite; Geoprocessamento

Soil bulk density is an attribute often used to characterize soil physical structure, being an indicator of soil compaction. The objective of this study was to compare the values ​​of bulk density measured by the paraffin sealed clod and volumetric ring methods in conventional, no-tillage and minimum tillage systems on a Dystroferric Red Nitosol, clayey, in Botucatu, SP. The experiment design was a 3x2 factorial arrangement in randomized block with four replications. The density values ​​obtained by the paraffin sealed clod method were statistically higher than those obtained by the volumetric ring method. There was no difference between the managements when comparing the values ​​of soil density obtained by the paraffin sealed clod method. The soil under conventional management showed lower density when comparing the values ​​of soil density obtained by the volumetric ring. The volumetric ring method was more sensitive to show differences between the management systems than the paraffin sealed clod method.