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	Provedor de dados Organic Eprints (1) Autor Atkinson, David (1) Rees, Robert (1) Sanders, Ian (1) Watson, Christine (1) Palavra-chave Crop combinations and interactions (1) Farm nutrient management (1) Tipo do documento Conference paper, poster, etc. (1) Ano 2002 (1) País Germany (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Nitrogen fixation and soil nitrogen in organic ley arable rotations Organic Eprints Sanders, Ian; Watson, Christine; Rees, Robert; Atkinson, David. This report was presented at the UK Organic Research 2002 Conference. Nitrogen (N) fixation in a white clover/ryegrass mixture was measured in 1,2,3 and 4-year-old organically managed leys during 2000. N fixation varied between 73.7 in 1-year-old leys and 33.5 kg ha-1 in 4-year-old leys. Soil nitrate-N, grass N yield and N content of grass and clover were all lowest in 2-year-old leys and highest in 3-year-old leys. The proportion of clover nitrogen derived from the atmosphere (pNdfa) was significantly lower in 3-year-old leys. Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions; Farm nutrient management. Ano: 2002 URL: http://orgprints.org/8366/1/sanders_Nitrogen_fixation_ley_rotations.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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