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	Provedor de dados REA (2) Autor Cavassini,Victor H. (2) Cortez,Jorge W. (2) Valente,Igor Q. M. (2) Arcoverde,Sálvio N. S. (1) Matos,Wéliton P. da S. (1) Motomiya,Anamari V. de A. (1) Orlando,Roberto C. (1) Mais... Palavra-chave Agricultural mechanization (1) Compaction (1) Cone index (1) Decompaction (1) Geostatistics (1) Soil compaction (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última SPATIAL VARIABILITY OF SOIL RESISTANCE TO PENETRATION IN NO TILLAGE SYSTEM REA Cortez,Jorge W.; Matos,Wéliton P. da S.; Arcoverde,Sálvio N. S.; Cavassini,Victor H.; Valente,Igor Q. M.. ABSTRACT In areas of no tillage system where there is intense traffic of machines and minimal soil mobilization, the periodic monitoring allied on localized soil compaction represent important strategies aiming agricultural sustainability. Thus, the objective of this study was to evaluate the spatial variability of soil resistance to penetration (RP) in no tillage system. Data collection took place in an experimental area of 7.65 ha using a sample grid composed of 40 points. At each point the RP was determined by three replications from which was obtained the mean RP, the maximum RP, and the depth of the maximum RP in the 0-0.40m layer. Deformed samples were randomly collected in the area to determine the water content in the soil (θ). Then the RP data... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil compaction; Agricultural mechanization; Geostatistics. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500697 SPATIALIZATION OF SOIL RESISTANCE TO PENETRATION FOR LOCALIZED MANAGEMENT BY PRECISION AGRICULTURE TOOLS REA Cortez,Jorge W.; Cavassini,Victor H.; Motomiya,Anamari V. de A.; Orlando,Roberto C.; Valente,Igor Q. M.. ABSTRACT Soil resistance to penetration is an indicator of easy measurement which can be used to make scarification / subsoiling recommendations in areas that work with localized management. The objective of this study was to evaluate the spatial variability of soil resistance to penetration (RP) in the area of direct sowing system, and to carry out the recommendation of scarification / subsoiling in a localized way through precision agriculture. The research was conducted in commercial area, in a field of 49.12 ha. The RP collection was with an electronic penetrometer in a sample mesh of 47 points distributed regularly in the area, with georeferenced points. The data were analyzed every 0.10 m being collected up to 0.40 m depth, in addition to obtaining... Tipo: Info:eu-repo/semantics/article Palavras-chave: Compaction; Cone index; Decompaction. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500690 Registros recuperados: 2 Primeira ... 1 ... Última

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