Data/hora: 18/06/2024 19:35:58

Biblioteca(s): | Embrapa Agroindústria Tropical; Embrapa Meio-Norte.
Data corrente: | 27/05/2020
Data da última atualização: | 27/05/2020
Autoria: | ARAÚJO, M. D. M.; FEITOSA, M. M.; PRIMO, A. C. A.; TANIGUCHI, C. A. K.; SOUZA, H. A. de.
Afiliação: | MARIA DIANA MELO ARAÚJO, Universidade Estadual Vale do Acaraú, Centro de Ciências Agrárias e Biológica, Sobral, CE.; MARINA MONTEIRO FEITOSA, Universidade Federal de Lavras, Departamento de Ciência do Solos.; ANACLAUDIA ALVES PRIMO, Universidade Federal do Ceará, Centro de Ciências; CARLOS ALBERTO KENJI TANIGUCHI, CNPAT; HENRIQUE ANTUNES DE SOUZA, CPAMN.
Título: | Mineralization of nitrogen and carbon from organic compost from animal production waste.
Ano de publicação: | 2020
Fonte/Imprenta: | Revista Caatinga, Mossoró, v. 33, n. 2, p. 310 ? 320, abr. / jun., 2020.
DOI: | http://dx.doi.org/10.1590/1983-21252020v33n204rc 310
Idioma: | Inglês
Conteúdo: | Elucidating the mineralization of organic composts makes it possible to understand the release of nutrients to plants. The objective of this study was to evaluate the mineralization of nitrogen (N) and carbon (C) from organic compost from residues of the production and slaughter of small ruminants, applied on a Neossolo Flúvico (Fluvents). The compost consists of remains of grass (forage), manure and slaughter residues such as blood, viscera and the carcass of goats and sheep. Under laboratory conditions, two experiments were conducted in a completely randomized design, considering the doses of organic compost at the following levels: zero; 3.75, 7.5, 15 and 30 Mg ha-1. For the N and C mineralization tests, 11 and 32 collection times (sampling periods) were evaluated, respectively. Inorganic N content (ammonium and nitrate) was measured in the N mineralization test, and CO2-C concentration was quantified in the C mineralization test. The largest increments between the applied doses of organic compost from residues of the production and slaughter of small ruminants were 70% and 69% for potentially mineralizable N and C, with amounts of 7.5 and 30 Mg ha-1 at doses of 3.75 and 7.5 Mg ha-1, respectively. Organic C and N from residues of the production and slaughter of small ruminants are rapidly mineralized in the soil (up to 45 days) due to their low C/N ratio.
Palavras-Chave: | C/N ratio; Pequenos ruminantes; Relação C/N.
Thesagro: | Compostagem.
Thesaurus Nal: | Composting; Small ruminants.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/213286/1/ART20002.pdf
Registro original: | Embrapa Agroindústria Tropical (CNPAT)

Exemplares:

CNPAT - (16405-1) - UPC - AP - DD -  -  - ART20002 - DIS
CPAMN - (32968-1) - UPC - AP - DD -  -  -  - DIS