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	Provedor de dados PAB (1) Rev. Bras. Ciênc. Solo (1) Autor Amorim,Magno Batista (2) Bortolon,Leandro (2) Gianello,Clesio (2) Rogeri,Douglas Antonio (2) Palavra-chave Phosphate fertilization (2) Phosphorus adsorption (2) Clay content (1) Mehlich-1 (1) Mehlich-3 (1) Phosphate buffer capacity (1) Soil test (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2016 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Remaining phosphorus content to determine phosphorus availability of the soils in Rio Grande do Sul PAB Rogeri,Douglas Antonio; Bortolon,Leandro; Gianello,Clesio; Amorim,Magno Batista. Abstract: The objective of this work was to evaluate remaining P compared with soil clay content as a P buffer index to classify P extracted by the Mehlich-1 (M1) and Mehlich-3 (M3) methods in soils from the state of Rio Grande do Sul, Brazil. The experiment was carried out in a completely randomized design with five P2O5 rates (0, 50, 100, 200, and 400 mg kg-1) and two sucessive corn crops, and three replicates, in 20 representative soils of the state. P extracted by M1 and M3 before crop planting was adjusted to P contents in biomass, considering soil buffer capacity. The division of soils into different buffering classes, based on soil clay or remaining P, improved the capacity of estimating soil available P of both methods. However, there was no... Tipo: Info:eu-repo/semantics/article Palavras-chave: Clay content; Phosphate buffer capacity; Phosphate fertilization; Phosphorus adsorption; Soil test. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201203 Substitution of Clay Content for P-Remaining as an Index of the Phosphorus Buffering Capacity for Soils of Rio Grande do Sul Rev. Bras. Ciênc. Solo Rogeri,Douglas Antonio; Gianello,Clesio; Bortolon,Leandro; Amorim,Magno Batista. ABSTRACT Mehlich-1 soil extract is currently used in Rio Grande do Sul (RS) and Santa Catarina (SC) States, in Brazil, to evaluate soil phosphorus available to plants and Mehlich-1 is sensitive to soil buffering capacity. This limitation is overcome partly by soil separation into buffering classes based on soil clay content. However, soil clay content has some technical and operational limitations, such as the underestimation of soil clay levels in soils under no-till. The aim of this study was to evaluate the remaining phosphorus (P-rem) compared to soil clay content as an index of the buffering capacity in soils of RS. The relationship between P-rem and soil clay content was assessed using 200 soil samples from a wide range of locations across the state.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mehlich-1; Mehlich-3; Phosphate fertilization; Phosphorus adsorption. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100418 Registros recuperados: 2 Primeira ... 1 ... Última

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