Data/hora: 17/06/2024 04:03:13

Biblioteca(s): | Embrapa Suínos e Aves.
Data corrente: | 27/10/2017
Data da última atualização: | 09/05/2018
Autoria: | WUADEN, C. R.; NICOLOSO, R. da S.; GRAVE, R. A.; PIGOSSO, A.
Afiliação: | CAMILA ROSANE WUADEN, UDESC/Lages; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; ROBERTO ANDRÉ GRAVE, IFC/Concórdia; ADRIANA PIGOSSO, FACC.
Título: | Maize nitrogen use efficiency is affected by pig slurry composting and anaerobic digestion.
Ano de publicação: | 2017
Fonte/Imprenta: | In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 5., 2017, Foz do Iguaçu, Anais... Concórdia: Sbera: Embrapa Suínos e Aves, 2017. SIGERA. p. 28-31.
Idioma: | Inglês
Conteúdo: | ABSTRACT: We assessed the nitrogen use efficiency of maize amended with mineral and organic N sources in a Nitisol from Southern Brazil under contrasting soil tillage systems: conventional tillage (CT) and no-tillage (NT). The tested N sources were: 140 kg N ha-1 (total N input) either as mineral fertilizer (urea; MIN), pig slurry (PS), anaerobically digested pig slurry (ADS) and composted pig slurry (CS), besides a control without fertilization (CTR). The N-based application of PS and ADS supplied less than 74% of the maize requirements for P2O5 (115 kg ha-1 ), while CS exceeded P2O5 demand by up to 109%. PS and ADS promoted maize N uptake, biomass production and grain yield similar or higher than maize receiving mineral fertilizer (urea). However, CS promoted significantly lower N agronomic efficiency (AEN) and recovery efficiency (REN) than other fertilizers. CS should be primarily used as a source of P and K or as an amendment to recover SOM stocks in degraded soils.
Palavras-Chave: | Biodigestão.
Thesagro: | Compostagem; Dejeto; Plantio; Suíno.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/165679/1/final8453.pdf
Registro original: | Embrapa Suínos e Aves (CNPSA)
Exemplares: | CNPSA - (21156-1) - UPC - AA - DD -  -  -  - DIS