Título:	Palisadegrass effects on N fertilizer dynamic in intercropping systems with corn.
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.
Ano de publicação:	2017
Referência:	Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 89, n. 3, p. 1917-1923, jul./set. 2017.
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.
Thesagro:	Plantio direto Fertilizante nitrogenado Milho
NAL Thesaurus:	Isotopes No-tillage Urochloa Corn Nutrient use efficiency
Palavras-chave:	Urochloa spp
ISSN:	1678-2690
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPASA)