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Registro Completo |
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
29/10/2017 |
Data da última atualização: |
29/10/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165717/1/CNPASA-2017-aabc.pdf
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Marc: |
LEADER 01794naa a2200301 a 4500 001 2078379 005 2017-10-29 008 2017 bl uuuu u00u1 u #d 022 $a1678-2690 100 1 $aALMEIDA, R. E. M. de 245 $aPalisadegrass effects on N fertilizer dynamic in intercropping systems with corn.$h[electronic resource] 260 $c2017 520 $aCorn 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. 650 $aCorn 650 $aIsotopes 650 $aNo-tillage 650 $aNutrient use efficiency 650 $aUrochloa 650 $aFertilizante nitrogenado 650 $aMilho 650 $aPlantio direto 653 $aUrochloa spp 700 1 $aOLIVEIRA, S. M. de 700 1 $aLAGO, B. C. 700 1 $aP. JUNIOR, C. 700 1 $aTRIVELIN, P. C. O. 700 1 $aFAVARIN, J. L. 773 $tAnais da Academia Brasileira de Ciências, Rio de Janeiro$gv. 89, n. 3, p. 1917-1923, jul./set. 2017.
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Embrapa Pesca e Aquicultura (CNPASA) |
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