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	Provedor de dados Rev. Ciênc. Agron. (1) Rev. Bras. Ciênc. Solo (1) Autor Ernani,Paulo Roberto (2) Deschamps,Francisco Carlos (1) Gatiboni,Luciano Colpo (1) Knoblauch,Ronaldir (1) Lourenço,Késia Silva (1) Martins,Acácio Agostinho (1) Moro,Letícia (1) Pegoraro,Angélica (1) Simonete,Marcia Aparecida (1) Teixeira-Gandra,Claudia Fernanda Almeida (1) Walker,Timothy Wayne (1) Mais... Palavra-chave Flooded soils (2) Isotherm of Langmuir (1) Oryza sativa (1) Oryza sativa L (1) Straw management (1) Water-seeded system (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2014 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Rice straw incorporated just before soil flooding increases acetic acid formation and decreases available nitrogen Rev. Bras. Ciênc. Solo Knoblauch,Ronaldir; Ernani,Paulo Roberto; Deschamps,Francisco Carlos; Gatiboni,Luciano Colpo; Walker,Timothy Wayne; Lourenço,Késia Silva; Martins,Acácio Agostinho; Pegoraro,Angélica. Incorporation of rice straw into the soil just before flooding for water-seeded rice can immobilize mineral nitrogen (N) and lead to the production of acetic acid harmful to the rice seedlings, which negatively affects grain yield. This study aimed to evaluate the formation of organic acids and variation in pH and to quantify the mineral N concentration in the soil as a function of different times of incorporation of rice straw or of ashes from burning the straw before flooding. The experiment was carried out in a greenhouse using an Inceptisol (Typic Haplaquept) soil. The treatments were as follows: control (no straw or ash); incorporation of ashes from previous straw burning; rice straw incorporated to drained soil 60 days before flooding; straw... Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L; Straw management; Water-seeded system; Flooded soils. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100017 Phosphorus adsorption in lowlands of Santa Catarina cultivated with rice and its relation with soil properties Rev. Ciênc. Agron. Simonete,Marcia Aparecida; Ernani,Paulo Roberto; Teixeira-Gandra,Claudia Fernanda Almeida; Moro,Letícia. ABSTRACT Soils have different capacities to retain phosphorus (P). In seasonal flooded soils iron (Fe) oxides and hydroxides of poor crystallinity, increase with time, and could be the most important constituent in P adsorption, during the time the soils remain unflooded. The present paper had the objective to determine the maximum adsorption capacity of P (MACP), collected from five selected soils in lowland rice areas in the Santa Catarina state, to search for soil individual parameters that best correlates with maximum adsorption capacity of P (MACP). The rates of P used to determine the MACP were calculated based on the concentration of indigenous P in the soil. The sorption of P and the P in solution data were then fitted to the Langmuir sorption... Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa; Isotherm of Langmuir; Flooded soils. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400566 Registros recuperados: 2 Primeira ... 1 ... Última

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