Título:	Biomass components in Massai grass during establishment and regrowth under five nitrogen fertilization levels.
Autoria:	LOPES, M. N. CÂNDIDO, M. J. D. POMPEU, R. C. F. F. SILVA, R. G. da LOPES, J. W. B. BEZERRA, F. M. L.
Afiliação:	Marcos Neves Lopes, Universidade Federal do Ceará - UFC, Fortaleza, CE; Magno José Duarte Cândido, UFC, Fortaleza, CE.; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC; Rodrigo Gregório da Silva, Instituto Federal de Educação, Ciência e Tecnologia – IFCE, Campus Avançado do Tauá, CE.; José Wellington Batista Lopes, UFC, Fortaleza, CE.; Francisco Marcus Lima Bezerra, UFC, Fortaleza, CE.
Ano de publicação:	2011
Referência:	Revista Brasileira de Zootecnia, v. 40, n. 8, p. 1629-1637, 2011.
Conteúdo:	To evaluate biomass components of Massai grass under five doses of N (0, 150, 300, 450 and 600 mg N/dm3 soil) during three cycles of growth (establishment, regrowth 1 and regrowth 2) this study was carried out. The experiment was carried out in a greenhouse, in a completely randomized design with measures repeted over time and five replications. In the three cycles, nitrogen doses had increasing linear effect on green herbage dry matter (GHDM), green leaf dry matter (GLDM), on the tiller population density (TPD) and on forage density. Canopy height and foliage height were the highest ones in establishment of regrowth 2, respectively, and they decreased at the highest doses of nitrogen. Irrigation depth was the greatest at the highest doses and in regrowth 1. Water use efficiency responded positively to the doses, being the regrowth 2 the highest values were obtained at the highest doses of nitrogen. Nitrogen use efficiency by Massai grass is influenced by fertilizantion as well as by the cycles. Nitrogen fertilization has positive effects on the components of Massai grass biomass.
Thesagro:	Matéria seca Pastagem Gramínea forrageira Panicum maximum Biomassa
NAL Thesaurus:	Biomass
Palavras-chave:	Fertilização Variedade Massai Fertilization Forage dry matter
Digital Object Identifier:	http://dx.doi.org/10.1590/S1516-35982011000800002
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPC)