| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Solo
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| País: |
Brazil
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| Título: |
Animal manure phosphorus characterization by sequential chemical fractionation, release kinetics and 31P-NMR analysis
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| Autores: |
Tiecher,Tales
Zafar,Mohsin
Mallmann,Fábio Joel Kochem
Bortoluzzi,Edson Campanhola
Bender,Marcos Antonio
Ciotti,Lucas Henrique
Santos,Danilo Rheinheimer dos
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| Data: |
2014-10-01
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| Ano: |
2014
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| Palavras-chave: |
Organic amend
Phosphorus bioavailability
Phytate
Phosphorus fractionation
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500016
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| Editor: |
Sociedade Brasileira de Ciência do Solo
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| Relação: |
10.1590/S0100-06832014000500016
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Ciência do Solo v.38 n.5 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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