Data/hora: 08/06/2024 11:47:09

Provedor de dados: 	90	
País: 	Brazil	
Título: 	Microbiological and biochemical properties of an agricultural Mexican soil amended with sewage sludge	
Autores: 	Armenta,Renato; Vaca,Rocio; Lugo,Jorge; del Aguila,Pedro.	
Data: 	2012-11-01	
Ano: 	2012	
Palavras-chave: 	Basal respiration; Biosolids; Enzymatic activities; Metabolic quotient; Microbial biomass.	
Resumo: 	The application of sewage sludge is a concern because it may affect the quality of organic matter and microbiological and biochemical soil properties. The effects of surface application of sewage sludge to an agricultural soil (at 18 and 36 t ha-1 dry basis) were assessed in one maize (Zea mays L.) growing season. The study evaluated microbial biomass, basal respiration and selected enzymatic activities (catalase, urease, acid and alkaline phosphatase, and β-glucosidase) 230 days after sewage sludge application and infrared spectroscopy was used to assess the quality of dissolved organic matter and humic acids. Sewage sludge applications increased the band intensity assigned to polysaccharides, carboxylic acids, amides and lignin groups in the soil. The organic matter from the sewage sludge had a significant influence on the soil microbial biomass; nevertheless, at the end of the experiment the equilibrium of the soil microbial biomass (defined as microbial metabolic quotient, qCO2) was recovered. Soil urease, acid and alkaline phosphatase activity were strongly influenced by sewage sludge applications.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000500029	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/S0100-06832012000500029	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.36 n.5 2012	
Fonte: 	info:eu-repo/semantics/openAccess