Data/hora: 13/06/2024 04:50:30

Provedor de dados: | Revista Brasileira de Ciência do Solo
País: | Brazil
Título: | Measuring mechanical impedance in clayey gravelly soils
Autores: | Stolf,R.; Cassel,D. K.; King,L. D.; Reichardt,K.
Data: | 1998-06-01
Ano: | 1998
Palavras-chave: | Impact penetrometer; Soil resistance; Hard clayey and gravelly soils; Spatial distribution.
Resumo: | Mechanical impedance of clayey and gravelly soils is often needed to interpret experimental results from tillage and other field experiments. Its measurement is difficult with manual and hydraulic penetrometers, which often bend or break in such soils. The purpose of this study was to evaluate the feasibility of a hand-operated "Stolf" impact penetrometer to measure mechanical impedance (soil resistance). The research was conducted in Raleigh, North Carolina, USA (35º 45'N, 78º 42'W, elevation 75 m). Corn was planted on April 19, 1991. Penetrometer measurements were taken on May 10, 1991, in 5 cm intervals to 60 cm at 33 locations on a transect perpendicular to the corn rows in each of four tillage treatments. The data permitted three-dimensional displays showing how mechanical impedance changed with depth and distance along the transect. The impact penetrometer proved to be a useful tool to collect quantitative mechanical impedance data on "hard" clayey and/or gravelly soils which previously were difficult to reliably quantify.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06831998000200003
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/S0100-06831998000200003
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.22 n.2 1998
Fonte: | info:eu-repo/semantics/openAccess