Data/hora: 03/07/2024 13:03:17

Biblioteca(s): 	Epagri-Sede.	
Data corrente: 	14/05/2012	
Data da última atualização: 	14/05/2012	
Autoria: 	MIRANDA, M.; SCHEFFER-BASSO, S. M.; ESCOSTEGUY, P. A. V.; LAJÚS, C. R.; SCHERER, E. E.; DENARDIN, R. B. N.	
Afiliação: 	Epagri	
Título: 	Dry matter production and nitrogen use effciency of giant missionary grass in response to pig slurry application.	
Ano de publicação: 	2012	
Fonte/Imprenta: 	Revista Brasileira de Zootecnia, Viçosa, MG, v. 41, n. 3, p. 537-543, 2012.	
Idioma: 	Inglês	
Notas: 	ISSN, 1516-3598	
Conteúdo: 	Abstract: This study assessed the effect of successive applications of pig slurry on the dry matter (DM) production and the nitrogen use efficiency of giant missionary grass along two years. A total of 55, 110, 165, 220 and 275 m3 of pig slurry/ha/year were applied in order to supply 100, 200, 300, 400 and 500 kg of total N/ha/year, respectively. These treatments were compared with the ammonium nitrate (200 kg of N/ha/year) source of N and with a control (no nitrogen application). Annually, nitrogen was applied in four divided doses, after the cutting of forage grasses, which takes place five times a year. The total DM yield did not differ between years and increased linearly as a function of pig slurry application, ranging from 2,698 kg of DM/ha/year (control) to 11,371 kg of DM/ha/year (275 m3 of pig slurry/ha/year). There was an increment of 32.3 kg of DM/m3 of pig slurry/ha or 17.7 kg of DM/kg of N/ha. The highest average daily DM accumulation rate (66.8 kg of DM/ha/day) was achieved with the highest pig slurry rate, from February/2007 to April/2008. Nitrogen use efficiency did not differ across pig slurry rates (19.0 kg of DM/kg of N), but it was lower than that obtained with ammonium nitrate (30.3 kg of DM/kg of N). The efficiency index of pig slurry ranged from 0.52 to 0.72.	
Palavras-Chave: 	Missioneira gigante.	
Categoria do assunto: 	--	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_12637.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
Exemplares: 	Epagri-Sede - (88286-1) - UPC - AP - -- -  -  -  - DIS