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	Provedor de dados BABT (1) Rev. Bras. Ciênc. Solo (1) Autor Coimbra,Jefferson Luis Meirelles (2) Carvalho,Fernando Irajá Félix de (1) Denardin,Rosiane Berenice Nicoloso (1) Gatiboni,Luciano Colpo (1) Kopp,Mauricio Marini (1) Luz,Viviane Kopp da (1) Oliveira,Antonio Costa de (1) Prado Wildner,Leandro do (1) Sousa,Rogério Oliveira de (1) Souza,Velci Queiróz de (1) Mais... Palavra-chave Abiotic stress (1) Genetic breeding (1) Levels (1) Microbial carbon (1) Phytotoxicity (1) Plant residues (1) Soil microorganisms (1) Straw decomposition (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2011 (1) 2009 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Microbial biomass and soil fauna during the decomposition of cover crops in no-tillage system Rev. Bras. Ciênc. Solo Gatiboni,Luciano Colpo; Coimbra,Jefferson Luis Meirelles; Denardin,Rosiane Berenice Nicoloso; Prado Wildner,Leandro do. The decomposition of plant residues is a biological process mediated by soil fauna, but few studies have been done evaluating its dynamics in time during the process of disappearance of straw. This study was carried out in Chapecó, in southern Brazil, with the objective of monitoring modifications in soil fauna populations and the C content in the soil microbial biomass (C SMB) during the decomposition of winter cover crop residues in a no-till system. The following treatments were tested: 1) Black oat straw (Avena strigosa Schreb.); 2) Rye straw (Secale cereale L.); 3) Common vetch straw (Vicia sativa L.). The cover crops were grown until full flowering and then cut mechanically with a rolling stalk chopper. The soil fauna and C content in soil microbial... Tipo: Info:eu-repo/semantics/article Palavras-chave: Microbial carbon; Straw decomposition; Soil microorganisms; Plant residues. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400008 Methodology adjustments for organic acid tolerance studies in oat under hydroponic systems BABT Kopp,Mauricio Marini; Luz,Viviane Kopp da; Souza,Velci Queiróz de; Coimbra,Jefferson Luis Meirelles; Sousa,Rogério Oliveira de; Carvalho,Fernando Irajá Félix de; Oliveira,Antonio Costa de. The occurrence of anaerobic conditions in hydromorphic soils favors the development of anaerobic microorganisms that produce phytotoxic substances representing primarily by organic acids. The selection of promising oat (Avena sativa L.) genotypes for use in those situations requires field evaluations that can be cumbersome, making hydroponics a viable alternative. The objective of this work was to adjust a methodology to use in studies of tolerance to organic acids in oat under hydroponic systems. For such goal, the best germination system was determined in order to reduce the seedling initial establishment effects under hydroponics, the ideal concentration for screening genotypes and the best variable for stress evaluation. It was found that the most... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytotoxicity; Levels; Abiotic stress; Genetic breeding. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300003 Registros recuperados: 2 Primeira ... 1 ... Última

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