Data/hora: 03/06/2024 15:37:13

Biblioteca(s): | Embrapa Agrobiologia; Embrapa Solos.
Data corrente: | 01/12/2017
Data da última atualização: | 11/11/2021
Autoria: | INACIO, C. de T.; MAGALHÃES, A. M. T.; SOUZA, P. O.; CHALK, P. M.; URQUIAGA, S.
Afiliação: | CAIO DE TEVES INACIO, CNPS; ALBERTO M. T. MAGALHÃES; PAULO O. SOUZA, UFRRJ; PHILLIP MICHAEL CHALK; SEGUNDO SACRAMENTO U CABALLERO, CNPAB.
Título: | The relative isotopic abundance (delta13C, delta15N) during composting of agricultural wastes in relation to compost quality and feedstock.
Ano de publicação: | 2018
Fonte/Imprenta: | Isotopes in Environmental and Health Studies, v. 54, n. 2, p. 185-195, 2018.
DOI: | https://doi.org/10.1080/10256016.2017.1377196
Idioma: | Inglês
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.
Thesagro: | Agricultura; Biodegradação; Fertilizante; Resíduo Orgânico.
Thesaurus Nal: | Agriculture; Biodegradation; Carbon; Isotopes; Nitrogen; Organic fertilizers; Organic wastes.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)

Exemplares:

CNPS - (19710-1) - UPC - AP - DD -  -  - 2017.00267 - DIS
CNPAB - (40741-1) - UPC - AP - DD - 2018.00031 -  - 2018.00031 - DIS