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Assessment and kinetics of soil phosphatase in Brazilian Savanna systems Anais da ABC (AABC)
FERREIRA,ADÃO S.; ESPÍNDOLA,SUÉLLEN P.; CAMPOS,MARIA RITA C..
The activity and kinetics of soil phosphatases are important indicators to evaluate soil quality in specific sites such as the Cerrado (Brazilian Savanna). This study aimed to determine the activity and kinetic parameters of soil phosphatase in Cerrado systems. Soil phosphatase activity was assessed in samples of native Cerrado (NC), no-tillage (NT), conventional tillage (CT) and pasture with Brachiaria brizantha (PBb) and evaluated with acetate buffer (AB), tris-HCl buffer (TB), modified universal buffer (MUB) and low MUB. The Michaelis-Menten equation and Eadie-Hofstee model were applied to obtain the kinetic parameters of soil phosphatase using different concentrations of p-nitrophenol phosphate (p-NPP). MUB showed the lowest soil phosphatase activity...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil phosphatase activity; Buffer; Enzyme kinetics; Michaelis-Menten equation; Eadie-Hofstee model; Cerrado.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000301035
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