Data/hora: 05/06/2024 03:41:11

Provedor de dados: 	90	
País: 	Brazil	
Título: 	Animal manure phosphorus characterization by sequential chemical fractionation, release kinetics and 31P-NMR analysis	
Autores: 	Tiecher,Tales; Zafar,Mohsin; Mallmann,Fábio Joel Kochem; Bortoluzzi,Edson Campanhola; Bender,Marcos Antonio; Ciotti,Lucas Henrique; Santos,Danilo Rheinheimer dos.	
Data: 	2014-10-01	
Ano: 	2014	
Palavras-chave: 	Organic amend; Phosphorus bioavailability; Phytate; Phosphorus fractionation.	
Resumo: 	Phosphate release kinetics from manures are of global interest because sustainable plant nutrition with phosphate will be a major concern in the future. Although information on the bioavailability and chemical composition of P present in manure used as fertilizer are important to understand its dynamics in the soil, such studies are still scarce. Therefore, P extraction was evaluated in this study by sequential chemical fractionation, desorption with anion-cation exchange resin and 31P nuclear magnetic resonance (31P-NMR) spectroscopy to assess the P forms in three different dry manure types (i.e. poultry, cattle and swine manure). All three methods showed that the P forms in poultry, cattle and swine dry manures are mostly inorganic and highly bioavailable. The estimated P pools showed that organic and recalcitrant P forms were negligible and highly dependent on the Ca:P ratio in manures. The results obtained here showed that the extraction of P with these three different methods allows a better understanding and complete characterization of the P pools present in the manures.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500016	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/S0100-06832014000500016	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.38 n.5 2014	
Fonte: 	info:eu-repo/semantics/openAccess