Data/hora: 16/06/2024 01:33:51

Biblioteca(s): | Embrapa Pesca e Aquicultura.
Data corrente: | 29/10/2017
Data da última atualização: | 29/10/2017
Autoria: | ALMEIDA, R. E. M. de; OLIVEIRA, S. M. de; LAGO, B. C.; P. JUNIOR, C.; TRIVELIN, P. C. O.; FAVARIN, J. L.
Afiliação: | RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; SILAS MACIEL DE OLIVEIRA, ESALQ; BRUNO C. LAGO, ESALQ; CLOVIS P. JUNIOR, INSTITUTO FEDERAL DO PARANÁ; PAULO C. O. TRIVELIN, CENA; JOSE LAERCIO FAVARIN, ESALQ.
Título: | Palisadegrass effects on N fertilizer dynamic in intercropping systems with corn.
Ano de publicação: | 2017
Fonte/Imprenta: | Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 89, n. 3, p. 1917-1923, jul./set. 2017.
ISSN: | 1678-2690
Idioma: | Inglês
Conteúdo: | Corn grain yield, nitrogen (N) fertilizer efficiency and distribution to corn alone and three forms of corn and palisadegrass (Urochloa spp.) intercropping implantation was investigated. A field experiment with 15N labeling fertilizer was performed in randomized block design. No form of palisadegrass intercropping implantation affected corn grain yield, total N accumulation and N use efficiency (NUE), which were 8.7 t ha-1, 205 kg ha-1 and 37% respectively. The palisadegrass produced on average 1.9 t of dry mass, absorbing a maximum of 6 kg ha-1 or 5.5% of N fertilizer during corn growing. Furthermore, the palisadegrass did not affect N fertilizer distribution in soil-plant system, in which 28.2% was recovered in the soil and 40.4% in the plants (corn + palisadegrass). The results show that for the three intercropping implantation methods the palisadegrass did not compete with corn for N fertilizer.
Palavras-Chave: | Urochloa spp.
Thesagro: | Fertilizante nitrogenado; Milho; Plantio direto.
Thesaurus Nal: | Corn; Isotopes; No-tillage; Nutrient use efficiency; Urochloa.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/165717/1/CNPASA-2017-aabc.pdf
Registro original: | Embrapa Pesca e Aquicultura (CNPASA)
Exemplares: | CNPASA - (554-1) - UPC - AP - DD - CNPASA_AP47 -  - 2017.047 - DIS