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	Provedor de dados Chilean J. Agric. Res. (1) Rev. Bras. Ciênc. Solo (1) Autor Franco,Henrique Coutinho Junqueira (1) Hirzel,Juan (1) Leite,José Marcos (1) Mariano,Eduardo (1) Megda,Michele Xavier Vieira (1) Otto,Rafael (1) Trivelin,Paulo Cesar Ocheuze (1) Undurraga,Pablo (1) Walter,Ingrid (1) Mais... Palavra-chave Aerobic incubation (2) Anaerobic incubation (1) Net N mineralization (1) Nitrogen mineralization (1) Nutrient availability (1) Poultry litter (1) Saccharum spp. (1) Volcanic soil (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Journal article (1) Ano 2013 (1) 2010 (1) País Brazil (1) Chile (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Nitrogen Mineralization and Released Nutrients in a Volcanic Soil Amended with Poultry Litter Chilean J. Agric. Res. Hirzel,Juan; Undurraga,Pablo; Walter,Ingrid. Optimum application rates of poultry litter (PL) spread out on the farmer´s field is a valuable source of available plant nutrients. The aim of this study was to compare the effect of two rates of PL and conventional fertilization (CF) on N mineralization and P, K, Zn, and Cu availability in an Andisol from Southern Chile under controlled conditions. Aerobic incubation was carried out for a 16-wk period. N mineralization rates were higher (61.5%) with the two PL treatments than with conventional fertilizer (23%). CF was associated with high N availability prior to the start of incubation and slight immobilization during the first week, perhaps due to a more rapid conversion of urea into NH4 which was then temporarily immobilized by the microbial biomass.... Tipo: Journal article Palavras-chave: Aerobic incubation; Poultry litter; Nitrogen mineralization; Nutrient availability; Volcanic soil. Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000100012 Incubation methods for assessing mineralizable nitrogen in soils under sugarcane Rev. Bras. Ciênc. Solo Mariano,Eduardo; Trivelin,Paulo Cesar Ocheuze; Leite,José Marcos; Megda,Michele Xavier Vieira; Otto,Rafael; Franco,Henrique Coutinho Junqueira. Considering nitrogen mineralization (N) of soil organic matter is a key aspect for the efficient management of N fertilizers in agricultural systems. Long-term aerobic incubation is the standard technique for calibrating the chemical extraction methods used to estimate the potentially mineralizable N in soil. However, the technique is laborious, expensive and time-consuming. In this context, the aims of this study were to determine the amount of soil mineralizable N in the 0-60 cm layer and to evaluate the use of short-term anaerobic incubation instead of long-term aerobic incubation for the estimation of net N mineralization rates in soils under sugarcane. Five soils from areas without previous N fertilization were used in the layers 0-20, 20-40 and 40-60... Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp.; Net N mineralization; Aerobic incubation; Anaerobic incubation. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000200016 Registros recuperados: 2 Primeira ... 1 ... Última

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