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	Provedor de dados Agronomy (1) Rev. Bras. Ciênc. Solo (1) Autor Alves,Marcelo Eduardo (1) Costa, Antonio Carlos Saraiva Da; Universidade Estadual de Maringá (1) Forti,Gabriel Benjamin Siqueira (1) Lavorenti,Arquimedes (1) Miranda,Jarbas Honório de (1) Nakagawa,Fábio Keiti (1) Seidel, Edleusa Pereira; Universidade Estadual do Oeste do Paraná (1) Mais... Palavra-chave Anion exchange capacity (2) 5.01.01.00-5 animal wastes (1) Nitrogen (1) Remaining phosphorus (1) Retardation factor (1) Swine manure (1) Swine manure 5.01.01.03-0 animal wastes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Pesquisa científica de laboratório (1) Ano 2012 (1) 2010 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Estimating subsoil resistance to nitrate leaching from easily measurable pedological properties Rev. Bras. Ciênc. Solo Nakagawa,Fábio Keiti; Forti,Gabriel Benjamin Siqueira; Alves,Marcelo Eduardo; Lavorenti,Arquimedes; Miranda,Jarbas Honório de. Leaching of nitrate (NO3-) can increase the groundwater concentration of this anion and reduce the agronomical effectiveness of nitrogen fertilizers. The main soil property inversely related to NO3- leaching is the anion exchange capacity (AEC), whose determination is however too time-consuming for being carried out in soil testing laboratories. For this reason, this study evaluated if more easily measurable soil properties could be used to estimate the resistance of subsoils to NO3- leaching. Samples from the subsurface layer (20-40 cm) of 24 representative soils of São Paulo State were characterized for particle-size distribution and for chemical and electrochemical properties. The subsoil content of adsorbed NO3- was calculated from the difference... Tipo: Info:eu-repo/semantics/article Palavras-chave: Anion exchange capacity; Remaining phosphorus; Retardation factor. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000500013 Nitrate leaching from a Latosol after application of liquid swine manures in different pH values and organic matter contents - doi: 10.4025/actasciagron.v32i4.10070 Agronomy Costa, Antonio Carlos Saraiva Da; Universidade Estadual de Maringá; Seidel, Edleusa Pereira; Universidade Estadual do Oeste do Paraná. Liquid swine manures are produced in large volumes in the western Paraná and Santa Catarina states and are reused as a source of nutrients. This study aimed to evaluate the losses of nitrate (N-NO3-1) after application of liquid swine manures in three samples of a Latosol (Rhodic Eutrudox) with different levels of soil organic matter and pH collected at different depths. The experimental design was completely randomized with one soil, three levels of soil organic matter (34.09, 22.36 and 8.6 g dm-3), four pH in CaCl2 (4.0, 5.0, 6.0 and 7.0) conditions and three replications. Each experimental unit contained 450 cm3 of soil that received a dose of liquid swine manures equivalent to 120,000 dm-3 ha-1. The concentration of N-NO3-1 was evaluated in the... Tipo: Pesquisa científica de laboratório Palavras-chave: 5.01.01.00-5 animal wastes; Anion exchange capacity; Nitrogen; Swine manure 5.01.01.03-0 animal wastes; Anion exchange capacity; Nitrogen; Swine manure. Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/10070 Registros recuperados: 2 Primeira ... 1 ... Última

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