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	Provedor de dados REA (2) Autor Campos,José R. da R. (2) Modolo,Alcir J. (2) Baesso,Murilo M. (1) Müller,Jônatan (1) Trentin,Robson G. (1) Vidal-Torrado,Pablo (1) Mais... Palavra-chave Agricultural engineering (1) Direct seeding (1) Geophysics (1) Ground cover plants (1) Shank working depth (1) Soil stratigraphy (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2019 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última USE OF GROUND PENETRATING RADAR TO STUDY SPATIAL VARIABILITY AND SOIL STRATIGRAPHY REA Campos,José R. da R.; Vidal-Torrado,Pablo; Modolo,Alcir J.. ABSTRACT Ground Penetrating Radar (GPR) is a geophysical method that uses electromagnetic waves to study subsurface structure in different fields such as geology, agriculture and civil engineering. The wave penetration in the soil is strongly controlled by the electrical conductivity of soil components such as clay, organic matter, and water. In this study, tests were conducted in a floodplain in the Elizabeth Creek watershed (New Jersey – USA). We established one transect where measurements were completed using two techniques, common mid point (CMP) and constant offset profile (COP), both with 100- MHz frequency antennas. Measurements were also completed using 250 and 500 MHz shielded antennas. GPR showed good accuracy to study soil spatial variability... Tipo: Info:eu-repo/semantics/article Palavras-chave: Geophysics; Soil stratigraphy; Agricultural engineering. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000300358 TRACTIVE DEMAND, SOIL MOBILIZATION PARAMETERS, AND CORN YIELD IN COMPACTED OXISOL REA Müller,Jônatan; Modolo,Alcir J.; Trentin,Robson G.; Campos,José R. da R.; Baesso,Murilo M.. ABSTRACT Direct seeding systems are characterized by soil disturbance only occurring in the sowing line and the maintenance of the remaining area is achieved by covering with crop residues. Without total area soil mobilization as recommended by the no-tillage system, associated with the increase in the degree of soil compaction caused by the traffic of agricultural machinery, there can be a decrease in crop productivity. This study aimed to evaluate machine parameters, soil mobilization, and corn yield as a function of different furrow opener working depths (0.065, 0.095, 0.125, and 0.150 m) and evaluate the direct seeding of winter ground cover plants (black oat or forage turnip) in compacted Oxisol. The experiment was arranged in strips, in a randomized... Tipo: Info:eu-repo/semantics/article Palavras-chave: Direct seeding; Ground cover plants; Shank working depth. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000100089 Registros recuperados: 2 Primeira ... 1 ... Última

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