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	Provedor de dados PAB (1) Rev. Bras. Ciênc. Solo (1) Autor Parfitt,José Maria Barbat (2) Pauletto,Eloy Antonio (2) Reichardt,Klaus (2) Timm,Luís Carlos (2) Castilhos,Danilo Dufech (1) Pinto,Luiz Fernando Spinelli (1) Mais... Palavra-chave Soil movement (2) Flooded rice (1) Irrigated rice crop (1) Land forming (1) Soil biological attributes (1) Soil chemical attributes (1) Soil management (1) Soil management practices (1) Soil properties (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2014 (1) 2013 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Chemical and biological attributes of a lowland soil affected by land leveling PAB Parfitt,José Maria Barbat; Timm,Luís Carlos; Reichardt,Klaus; Pinto,Luiz Fernando Spinelli; Pauletto,Eloy Antonio; Castilhos,Danilo Dufech. The objective of this work was to evaluate the relationship between soil chemical and biological attributes and the magnitude of cuts and fills after the land leveling process of a lowland soil. Soil samples were collected from the 0 - 0.20 m layer, before and after leveling, on a 100 point grid established in the experimental area, to evaluate chemical attributes and soil microbial biomass carbon (MBC). Leveling operations altered the magnitude of soil chemical and biological attributes. Values of Ca, Mg, S, cation exchange capacity, Mn, P, Zn, and soil organic matter (SOM) decreased in the soil profile, whereas Al, K, and MBC increased after leveling. Land leveling decreased in 20% SOM average content in the 0 - 0.20 m layer. The great majority of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Flooded rice; Soil biological attributes; Soil chemical attributes; Soil management; Soil movement. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013001100010 Impacts of land leveling on lowland soil physical properties Rev. Bras. Ciênc. Solo Parfitt,José Maria Barbat; Timm,Luís Carlos; Reichardt,Klaus; Pauletto,Eloy Antonio. The practice of land leveling alters the soil surface to create a uniform slope to improve land conditions for the application of all agricultural practices. The aims of this study were to evaluate the impacts of land leveling through the magnitudes, variances and spatial distributions of selected soil physical properties of a lowland area in the State of Rio Grande do Sul, Brazil; the relationships between the magnitude of cuts and/or fills and soil physical properties after the leveling process; and evaluation of the effect of leveling on the spatial distribution of the top of the B horizon in relation to the soil surface. In the 0-0.20 m layer, a 100-point geo-referenced grid covering two taxonomic soil classes was used in assessment of the following... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil management practices; Land forming; Irrigated rice crop; Soil movement; Soil properties. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100032 Registros recuperados: 2 Primeira ... 1 ... Última

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