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	Provedor de dados BJB (2) Autor ESTEVES,F. A. (2) PETRUCIO,M. M. (2) Palavra-chave Aquatic macrophytes (2) Eichhornia crassipes (2) Nitrogen (2) Phosphorus (2) Salvinia auriculata (2) Tipo do documento Info:eu-repo/semantics/article (2) Ano 2000 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Influence of photoperiod on the uptake of nitrogen and phosphorus in the water by Eichhornia crassipes and Salvinia auriculata BJB PETRUCIO,M. M.; ESTEVES,F. A.. The main goal of this research was to quantify the concentrations of total and ammonium N, nitrate, total and soluble P in the water in the presence of Eichhornia crassipes and Salvinia auriculata, which were submitted to two different photoperiods in a 24 hours incubation period in the laboratory. The macrophytes were incubated in plastic vials of approximately 1.5 litters, with a previously prepared solution with NH4NO3, NH4Cl, and KH2PO4. Eichhornia crassipes showed the highest average rate of reduction of all the nutrients analysed in relation to Salvinia auriculata. The largest photoperiod reflected in a higher average rate of reduction of nutrients, in both plants. Therefore, we may expect that in some periods of the year (e.g. summer), the aquatic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eichhornia crassipes; Aquatic macrophytes; Nitrogen; Phosphorus; Salvinia auriculata. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000300002 Uptake rates of nitrogen and phosphorus in the water by Eichhornia crassipes and Salvinia auriculata BJB PETRUCIO,M. M.; ESTEVES,F. A.. The main goal of this research was to survey information about the physiology of Eichhornia crassipes and Salvinia auriculata and their capacity to remove nitrogen and phosphorus from the environment, after quantifying the concentrations of the nitrogen (NO3-N, NH4-N and total-N) and phosphorus (PO4-P and total-P) compounds in the water. The macrophytes were incubated in the laboratory in plastic vials of approximately 1.5 litters containing a previously prepared solution of NH4NO3, NH4Cl and KH2PO4. Eichhornia crassipes exhibited the highest rates of nutrient reduction and the concentrations of NO3-N, NH4-N and PO4-P in the water influenced the uptake rates of nitrogen and phosphorus of the E. crassipes and S. auriculata. This information can help to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic macrophytes; Eichhornia crassipes; Nitrogen; Phosphorus; Salvinia auriculata. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000200006 Registros recuperados: 2 Primeira ... 1 ... Última

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