Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Organic Eprints (1) Autor Ingwersen, Kathrin (1) Kaske, Axel (1) Loges, Ralf (1) Taube, Friedhelm (1) Palavra-chave Nutrient turnover Cereals (1) Pulses and oilseeds (1) Tipo do documento Conference paper, poster, etc. (1) Ano 2000 (1) País Germany (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Methodological aspects of determining nitrogen fixation of different forage legumes Organic Eprints Loges, Ralf; Ingwersen, Kathrin; Kaske, Axel; Taube, Friedhelm. Knowledge about the amount of fixed nitrogen of different legume crops is very important for calculation of farm N balances. According to literature the choice of determination method may have an impact on the estimated amount of N fixed by a legume sward. The aim of the study was to compare the three most important field methods for determination of nitrogen fixation under different sward management systems. In the present study the natural 15N abundance method gave lower fixation rates than the two alternative methods (total-N-difference method and 15N enrichment technique). The determination of N fixation based only on N in harvestable plant material underestimated the amount of fixed N on average by 70 kg ha-1 compared to techniques including also the... Tipo: Conference paper, poster, etc. Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds. Ano: 2000 URL: http://orgprints.org/2146/1/loges%2D2000%2Dmethod%2Dforage%2Dlegumes%2Dnitrogene.pdf Registros recuperados: 1 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco