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	Provedor de dados Rev. Bras. Ciênc. Solo (2) Autor Álvarez,Carina Rosa (2) Boem,Flavio Hernán Gutiérrez (1) Bono,Alfredo (1) Bustingorri,Carolina (1) Costantini,Alejandro Oscar (1) Fernández,Patricia Lilia (1) Micucci,Federico Guillermo (1) Prystupa,Pablo (1) Taboada,Miguel Angel (1) Taboada,Miguel Ángel (1) Mais... Palavra-chave C and N stocks (1) Carbon stratification (1) No-tillage (1) Soil compaction (1) Soil organic carbon (1) Soil organic matter fractions (1) Soil texture (1) Tillage systems (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2011 (1) 2010 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Distribution and vertical stratification of carbon and nitrogen in soil under different managements in the pampean region of Argentina Rev. Bras. Ciênc. Solo Álvarez,Carina Rosa; Costantini,Alejandro Oscar; Bono,Alfredo; Taboada,Miguel Ángel; Boem,Flavio Hernán Gutiérrez; Fernández,Patricia Lilia; Prystupa,Pablo. One of the expected benefits of no-tillage systems is a higher rate of soil C sequestration. However, higher C retention in soil is not always apparent when no-tillage is applied, due e.g., to substantial differences in soil type and initial C content. The main purpose of this study was to evaluate the potential of no-tillage management to increase the stock of total organic C in soils of the Pampas region in Argentina. Forty crop fields under no-tillage and conventional tillage systems and seven undisturbed soils were sampled. Total organic C, total N, their fractions and stratification ratios and the C storage capacity of the soils under different managements were assessed in samples to a depth of 30 cm, in three layers (0-5, 5-15 and 15-30 cm). The... Tipo: Info:eu-repo/semantics/article Palavras-chave: No-tillage; Soil organic matter fractions; Tillage systems; Carbon stratification; C and N stocks. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000600015 Pedotransfer functions to estimate proctor test parameters under different tillage systems Rev. Bras. Ciênc. Solo Álvarez,Carina Rosa; Micucci,Federico Guillermo; Bustingorri,Carolina; Taboada,Miguel Angel. The Proctor test is time-consuming and requires sampling of several kilograms of soil. Proctor test parameters were predicted in Mollisols, Entisols and Vertisols of the Pampean region of Argentina under different management systems. They were estimated from a minimum number of readily available soil properties (soil texture, total organic C) and management (training data set; n = 73). The results were used to generate a soil compaction susceptibility model, which was subsequently validated using a second group of independent data (test data set; n = 24). Soil maximum bulk density was estimated as follows: Maximum bulk density (Mg m-3) = 1.4756 - 0.00599 total organic C (g kg-1) + 0.0000275 sand (g kg-1) + 0.0539 management. Management was equal to 0 for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil organic carbon; Soil compaction; Soil texture. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000600002 Registros recuperados: 2 Primeira ... 1 ... Última

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