Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Chilean J. Agric. Res. (2) Autor Hirzel,Juan (2) Walter,Ingrid (2) Undurraga,Pablo (1) Palavra-chave Poultry litter (2) Aerobic incubation (1) Corn (1) Nitrogen (1) Nitrogen mineralization (1) Nutrient availability (1) Phosphorus (1) Potassium (1) Soil fertility (1) Volcanic soil (1) Mais... Tipo do documento Journal article (2) Ano 2010 (1) 2008 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Availability of Nitrogen, Phosphorus and Potassium from Poultry Litter and Conventional Fertilizers in a Volcanic Soil Cultivated with Silage Corn Chilean J. Agric. Res. Hirzel,Juan; Walter,Ingrid. Poultry litter (PL) is an organic matter source used as soil amendment. Besides its important nutrient content, it is a cheap alternative to conventional fertilizers in crop production. The efficient use of PL also helps reduce the environmental problems normally associated with its disposal near poultry production farms. This article reports the relative effects of PL and conventional fertilizers on the availability of soil N, P and K, dry matter (DM) production and total nutrient content in silage corn (Zea mays L.). The field experiment was carried out in a soil derived from volcanic ash (Tipic Melanoxerands) of Central South Chile. Corn was grown for three seasons (2002-2005) and PL and conventional fertilizers were applied in the first two years. The... Tipo: Journal article Palavras-chave: Poultry litter; Soil fertility; Corn; Nitrogen; Phosphorus; Potassium. Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000300006 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 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco