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	Provedor de dados R.C. Suelo Nutr. Veg. (1) Autor Alfaro,M (1) Iraira,S (1) Oenema,O (1) Ramirez,L (1) Salazar,F. S (1) Teuber,N (1) Villarroel,D (1) Mais... Palavra-chave Field slope (1) Grazing (1) Nutrient budget (1) Stocking rate (1) Tipo do documento Journal article (1) Ano 2009 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última NUTRIENTS BALANCES IN BEEF CATTLE PRODUCTION SYSTEMS AND THEIR IMPLICATIONS FOR THE ENVIRONMENT R.C. Suelo Nutr. Veg. Alfaro,M; Salazar,F. S; Oenema,O; Iraira,S; Teuber,N; Ramirez,L; Villarroel,D. The main inputs and outputs of nitrogen (N) and phosphorus (P) in soils and swards under typical Southern Chilean conditions were determined between 2004-2005 and 2006-2007 to establish soil and field gate N and P balances under different immediate stocking rates (63 and 191 anim ha-1 d-1) and field slope treatments (4 and 12%). Treatments received 67.5 and 40 kg N and P ha-1 yr-1 as inorganic fertilizer. The main N and P input to the soil balances was N mineralization (304 kg ha-1 yr-1) and inorganic fertilizer (62 and 69% for N and P, respectively). The main output for all treatments was plant uptake (95% and 100% on average for N and P, respectively). The N and P apparent use efficiency was high (>95%). The main N and P input to field gate balances... Tipo: Journal article Palavras-chave: Stocking rate; Field slope; Grazing; Nutrient budget. Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912009000100004 Registros recuperados: 1 Primeira ... 1 ... Última

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