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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Solos. |
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Data corrente: |
01/12/2017 |
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Data da última atualização: |
11/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
INACIO, C. de T.; MAGALHÃES, A. M. T.; SOUZA, P. O.; CHALK, P. M.; URQUIAGA, S. |
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Afiliação: |
CAIO DE TEVES INACIO, CNPS; ALBERTO M. T. MAGALHÃES; PAULO O. SOUZA, UFRRJ; PHILLIP MICHAEL CHALK; SEGUNDO SACRAMENTO U CABALLERO, CNPAB. |
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Título: |
The relative isotopic abundance (delta13C, delta15N) during composting of agricultural wastes in relation to compost quality and feedstock. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Isotopes in Environmental and Health Studies, v. 54, n. 2, p. 185-195, 2018. |
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DOI: |
https://doi.org/10.1080/10256016.2017.1377196 |
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Idioma: |
Inglês |
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Conteúdo: |
Variations in the relative isotopic abundance of C and N (delta13C and delta15N) were measured during the composting of different agricultural wastes using bench-scale bioreactors. Different mixtures of agricultural wastes (horse bedding manure + legume residues; dairy manure + jatropha mill cake; dairy manure + sugarcane residues; dairy manure alone) were used for aerobic- thermophilic composting. No significant differences were found between the delta13C values of the feedstock and the final compost, except for dairy manure + sugarcane residues (from initial ratio of -13.6 ± 0.2%° to final ratio of -14.4 ± 0.2%°). Delta15N values increased significantly in composts of horse bedding manure + legumes residues (from initial ratio of +5.9 ± 0.1%° to final ratio of +8.2 ± 0.5%°) and dairy manure + jatropha mill cake (from initial ratio of +9.5 ± 0.2%° to final ratio of +12.8 ± 0.7%°) and was related to the total N loss (mass balance). Delta13C can be used to differentiate composts from different feedstock (e.g. C3 or C4 sources). The quantitative relationship between N loss and delta15N variation should be determined. |
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Thesagro: |
Agricultura; Biodegradação; Fertilizante; Resíduo Orgânico. |
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Thesaurus Nal: |
Agriculture; Biodegradation; Carbon; Isotopes; Nitrogen; Organic fertilizers; Organic wastes. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
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Registro original: |
Embrapa Solos (CNPS) |
