Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Estimating legume N2 fixation in a grass-clover mixture of grazed organic cropping systems using two 15N methods. Organic Eprints
Vinther, Finn P.; Jensen, Erik S..
The input of N through symbiotic N2 fixation (SNF) in grass-clover mixtures was determined in an organic cropping system for grazing during three years. The mixture of perennial ryegrass (Lolium perenne L.) and white clover (Trifolium repens L.) was established by undersowing in spring barley (Hordeum vulgare L.) and maintained subsequently for two production years. Dinitrogen fixation was determined using the 15N isotope dilution techniques and two labelling procedures. Using either pre-labelling of the soil with immobilisation of the 15N by addition of a carbon source before establishment of the grass-clover mixture or adding the 15N labelled ammonium to the established crop, resulted in similar estimates of the proportion of N derived from the...
Tipo: Journal paper Palavras-chave: Nutrient turnover; Soil quality; Soil biology; Pasture and forage crops.
Ano: 2000 URL: http://orgprints.org/167/2/vinther_and_Jensen_2000.pdf
Imagem não selecionada

Imprime registro no formato completo
Pea-barley intercrop N dynamics in farmers fields Organic Eprints
Hauggaard-Nielsen, Henrik; Peoples, Mark B.; Andersen, Mette K.; Nielsen, Anders H.; Jensen, Erik S..
Knowledge about crop performances in farmers’ fields provides a link between on-farm practice and re-search. Thereby scientists may improve their ability to understand and suggest solutions for the problems facing those who have the responsibility of making sound agricultural decisions. Nitrogen (N) availability is known to be highly heterogeneous in terrestrial plant communities (Stevenson and van Kessel, 1997), a heterogeneity that in natural systems is often associated with variation in the distri-bution of plant species. In intercropping systems the relative proportion of component crops is influenced by the distribution of growth factors such as N in both time and space (Jensen, 1996). In pea-barley intercrops, an increase in the N supply promotes...
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2001 URL: http://orgprints.org/58/1/Rev%2DHauggaard%2DNielsen%2D11NW.pdf
Imagem não selecionada

Imprime registro no formato completo
Agronomic performance and yield stability of pea-barley intercropping in European organic farming system. Organic Eprints
Monti, Michele; Crozat, Yves; Dahlmann, Christoff; Dibet, Audrey; von Fragstein, Peter; Gooding, Mike J.; Hauggaard Nielsen, Henrik; Jensen, Erik S.; Kasyanova, Elena; Bellostas Muguerza, Natalia; Pristeri, Aurelio.
Intercropping of cereal and grain legumes in European cropping system (INTERCROP) is an European Project in which a multidisciplinary team of scientist conducts research on intercropping under different regional organic cropping systems. The project’s core experiments was a field trial in which pea and barley were intercropped in spring sowing and compared with respective sole crops during 2003-2005. One of the main deliverables of the Project (Workpackage 2) was the evaluation of agronomic performance of intercrop in term of yield advantage and yield stability. Results of this activity carried out, in five European Countries (Denmark, France, Germany, Italy and United Kingdom) in the basic field experiments, are presented in this contribution.
Tipo: Conference paper, poster, etc. Palavras-chave: Farming Systems.
Ano: 2006 URL: http://orgprints.org/7519/1/Monti1.pdf
Imagem não selecionada

Imprime registro no formato completo
Legumes for mitigation of climate change and feedstock in a bio-based economy - a review Organic Eprints
Jensen, Erik S.; Peoples, Mark B.; Boddey, Robert M.; Gresshoff, Peter M.; Hauggaard-Nielsen, Henrik; Alves, Bruno J.R.; Morrison, Malcolm J..
Legumes are unique plants which contribute with several functions and services of great value for agriculture and society. Including legume food, forage and tree crops in farming systems is one approach to mitigate climate change. We have shown that the ability of the legumes to fix there own N via the symbiosis with rhizobia will reduce CO2 and N2O emissions compared to crops fertilized with industrial N. There is, however, a requirement to better understand the potential residual effects of legumes on N2O emissions. We have similarly shown that legumes have a key role in soilC sequestration and that the inclusion of legumes as sole crops, cover crops or intercrops usually enhances the rate of soil C accumulation even within relative short time periods....
Tipo: Journal paper Palavras-chave: Recycling; Balancing and resource management Air and water emissions Greenhouses and coverings Farm nutrient management.
Ano: 2011 URL: http://orgprints.org/18984/4/18984.pdf
Imagem não selecionada

Imprime registro no formato completo
Legumes for mitigation of climate change and feedstock in a bio-based economy - a review Organic Eprints
Jensen, Erik S.; Peoples, Mark B.; Boddey, Robert M.; Gresshoff, Peter M.; Hauggaard-Nielsen, Henrik; Alves, Bruno J.R.; Morrison, Malcolm J..
Legumes are unique plants which contribute with several functions and services of great value for agriculture and society. Including legume food, forage and tree crops in farming systems is one approach to mitigate climate change. We have shown that the ability of the legumes to fix there own N via the symbiosis with rhizobia will reduce CO2 and N2O emissions compared to crops fertilized with industrial N. There is, however, a requirement to better understand the potential residual effects of legumes on N2O emissions. We have similarly shown that legumes have a key role in soilC sequestration and that the inclusion of legumes as sole crops, cover crops or intercrops usually enhances the rate of soil C accumulation even within relative short time periods....
Tipo: Journal paper Palavras-chave: Recycling; Balancing and resource management Air and water emissions Greenhouses and coverings Farm nutrient management.
Ano: 2011 URL: http://orgprints.org/19655/4/19655.pdf
Imagem não selecionada

Imprime registro no formato completo
Legumes for mitigation of climate change and the provision of feedstock for biofuels and biorefineries. A review Organic Eprints
Jensen, Erik S.; Peoples, Mark B.; Boddey, Robert M.; Gresshoff, Peter M.; Hauggaard-Nielsen, Henrik; Alves, Bruno J.R.; Morrison, Malcolm J..
Legumes are unique plants which contribute with several functions and services of great value for agriculture and society. Including legume food, forage and tree crops in farming systems is one approach to mitigate climate change. We have shown that the ability of the legumes to fix there own N via the symbiosis with rhizobia will reduce CO2 and N2O emissions compared to crops fertilized with industrial N. There is, however, a requirement to better understand the potential residual effects of legumes on N2O emissions. We have similarly shown that legumes have a key role in soilC sequestration and that the inclusion of legumes as sole crops, cover crops or intercrops usually enhances the rate of soil C accumulation even within relative short time periods....
Tipo: Journal paper Palavras-chave: Recycling; Balancing and resource management Air and water emissions Greenhouses and coverings Farm nutrient management.
Ano: 2012 URL: http://orgprints.org/20912/4/19655.pdf
Registros recuperados: 6
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

Valid HTML 4.01 Transitional