Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 359
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Dept. of Agriculture and Rural Development N.Ireland: Field study Organic Eprints
Techniques in plot management and assessment and botanical analyses
Tipo: Research facility description Palavras-chave: Pasture and forage crops; Farming Systems.
Ano: 2020
Imagem não selecionada

Imprime registro no formato completo
Der optimale Erntezeitpunkt für tanninhaltige Futterpflanzen Organic Eprints
Häring, D.A.; Suter, D.; Lüscher, A..
Depending on the concentration in which they are fed, condensed tannins (CT) can have various beneficial or detrimental effects on ruminants. In organic farming the anthelmintic effects of CT are of special interest. In an outdoor experiment, the sea-sonal dynamics of the CT concentration of the harvestable biomass was investigated as a function of the biomass allocation to leaves and stems in Onobrychis viciifolia, Lotus corniculatus and Cichorium intybus in the course of a vegetation period in Zu-rich, Switzerland. Such knowledge is indispensable for a practical application of tan-niferous plants in farming systems. In line with our expectations, CT concentrations were higher in leaves than in stems and the leaf fraction of the harvestable biomass...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Health and welfare; Feeding and growth.
Ano: 2007 URL: http://orgprints.org/9277/1/9277_H%C3%A4ring_Vortrag.pdf
Imagem não selecionada

Imprime registro no formato completo
Design af kløvergræsmarker med urter til kvægfoder Organic Eprints
Søegaard, Karen; Eriksen, Jørgen.
Urter, som etableres sammen med kløvergræs, er udsat for stærk konkurrence. Nogle kan klare sig, mens andre har brug for hjælp. Hvis græsmarkerne reelt skal være artsrige, er det derfor nødvendigt at designe græsmarkerne, så der tages hensyn til de enkelte urters konkurrenceevne.
Tipo: Newspaper or magazine article Palavras-chave: Pasture and forage crops.
Ano: 2015 URL: http://orgprints.org/29968/1/NyKvaegforskning%20_2_2015.pdf
Imagem não selecionada

Imprime registro no formato completo
Designing high-yielding, high-diversity and low-input temporary grasslands Organic Eprints
Søegaard, K.; Mortensen, T.B.; Eriksen, J..
Species-rich swards have received increasing interest due to their focus on ecosystem services, animal welfare and product quality. However, in high-yielding swards the proportion of herbs is often limited and there is little knowledge of their management. Seed mixture composition, cutting frequency, fertilization and grazing/cutting strategies were examined over 4 years in 3 experiments to quantify their effects on herbage yield and botanical composition. Inclusion of herbs in the sward gave similar or higher annual yields but swards established with 100% herbs depended on the presence of a driver species. The effects of management differed between species. Herb content in the sward was significantly related to the proportion of herbs in the seed...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2013 URL: http://orgprints.org/24755/6/24755.pdf
Imagem não selecionada

Imprime registro no formato completo
Development of phosphatase and dehydrogenase activities in soils of annual cropland and permanent grassland in an organic farm Organic Eprints
Ohm, M.; Paulsen, H.M.; Eichler-Löbermann, B.; Rahmann, G..
The essential nature of Phosphorus (P) in plant growth and the finite amount of P resources have result in the question: what kind of management in farming systems can lead to P sufficiency in organic farming? The release of acid and alkaline phosphatases of plant and microbes promote the plant availability of soil P. The presented results show a significant higher enzyme activity at permanent grassland (PG) than at arable land with annual crops at an organic farm in Northern Germany. Therefore livestock systems with PG for grazing ruminants seem to have high potential to improve on-farm P-cycles via feed and manure flows even to annual cropland. These systems can profit from the nutrient transfer from PG to arable land through the use of manures. Enhance...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Farm nutrient management.
Ano: 2013 URL: http://orgprints.org/24568/1/24568.pdf
Imagem não selecionada

Imprime registro no formato completo
Die Untersuchung der Überlebensfähigkeit von infektionsfähigen Endoparasitenlarven in Silagen unterschiedlicher Qualität Organic Eprints
Podstatzky, Leopold; Thurnhofer, R..
The aim of this study was to analyze the influence of silage quality and duration of ensiling to the recovery of infectious larvae of endoparasites. 48 silage bags of different quality were prepaired (gras, gras and earth, gras and silage additive, gras and earth and silage additive). Third larvae of a parasite larvae mixture were added. Larvae were recovered by the methode of Baermann-Wetzel. Significant differences were seen between groups in the larval recovery with more recovery in groups with additional earth. Differences in pH were ambivalent, but samples without added earth were at least numerically better.
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Feeding and growth; Health and welfare.
Ano: 2017 URL: http://orgprints.org/31570/1/Die%20Untersuchung%20der%20%C3%9Cberlebensf%C3%A4higkeit%20von.pdf
Imagem não selecionada

Imprime registro no formato completo
Distribuição espacial de Procornitermes sp. (Isoptera: Termitidae) em função das propriedades físicas do solo em área de pastagem no município de São Borja, Rio Grande do Sul. Organic Eprints
Dias, Naymã Pinto; Medeiros, Leticia Ramon; Pazini, Juliano de Bastos; Silva, Fernando Felisberto da.
Os cupins pertencentes ao gênero Procornitermes são comumente encontrados em áreas de pastagem e a sua presença têm sido associada a situações de desequilíbrio ambiental e qualidade física do solo. Um conhecimento importante sobre a ocorrência destes cupins é o da distribuição espacial, essencial para o desenvolvimento de planos de amostragens e previsões de ocorrência. O objetivo deste trabalho foi verificar a dispersão e distribuição espacial de cupinzeiros em área de pastagem na Fronteira Oeste, associando-as às propriedades físicas do solo. Foram efetuadas amostragens para a determinação do número total de cupinzeiros existentes na área. Realizou-se análise física do solo, a determinação do gênero de cupim predominante e o cálculo da distribuição das...
Tipo: Journal paper Palavras-chave: Pasture and forage crops; Soil biology; Soil.
Ano: 2012 URL: http://orgprints.org/22930/1/Dias_Distribui%C3%A7%C3%A3o.pdf
Imagem não selecionada

Imprime registro no formato completo
Distribution and use of grasslands in the Czech Republic and biodiversity of invertebrates Organic Eprints
Moudry, Jan (Jr.); Bohac, Jaroslav; Konvalina, Petr; Moudry, Jan; Kolarova, Pavlina.
In the Czech Republic the major focus of organic farming lies in permanent grasslands management. Animal production is mostly focused on non-milk pasture beef-raising on almost the whole farm area. By contrast conventional farms do not grass sufficiently, even in areas with higher elevation. This fact is influenced by subvention programmes motivating farmers to fulfil the agroenvironmental function of agriculture using grassing, however there is no support for agriculture on arable land. Permanent grasslands are predominantly used for beef grazing. Large areas are harvested too, which affects biodiverzity. Grasslands utilized for pasture are rich in biodiversity which enhance ecosystem services. The effect of grassland management on the different taxa and...
Tipo: Journal paper Palavras-chave: Pasture and forage crops; Biodiversity and ecosystem services.
Ano: 2008 URL: http://orgprints.org/21032/1/Moudry_%2D_Distribution[1]...2008.pdf
Imagem não selecionada

Imprime registro no formato completo
Diversifizierung des Silomaisanbaus Organic Eprints
Schumann, Caroline; Müller-Lindenlauf, Maria; Gayer, Christoph; Stolzenburg, Kerstin; Wurth, Wilhelm.
Dieses Forschungsvorhaben hat drei Schwerpunkte. Erstens wird die Attraktivität von Mais (Zea mays L.), angebaut im Gemenge mit Stangenbohnen (Phaseolus vulgaris L.), für verschiedene Artengruppen, z.B. Laufkäfer (Carabidae LATREILLE), untersucht. Zweitens wird die Futterqualität von Mais-Bohnen-Silagen für Milchkühe getestet. Drittens werden weitere Gemengepartner für den Mais geprüft. Erste Ergebnisse werden in 2019 erwartet.
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Dairy cattle; Biodiversity and ecosystem services.
Ano: 2019 URL: http://orgprints.org/36173/1/Beitrag_246_final_a.pdf
Imagem não selecionada

Imprime registro no formato completo
Dry matter production of annually cultivated forage legumes in organic farming Organic Eprints
Nykänen-Kurki, P.; Leinonen, P.; Nykänen, A..
In 1998-2001 nineteen forage legume species were evaluated at two sites of Eastern Finland. Species were studied for their annual productivity in pure stands and in mixtures with cereals (barley and oats) and Italian ryegrass. Swards were cut either twice or once per year.
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2004 URL: http://orgprints.org/4293/1/4293.doc
Imagem não selecionada

Imprime registro no formato completo
Dyrkning af kløvergræs Organic Eprints
Søegaard, K.; Rasmussen, J.; Sehested, J.; Jensen, S.K.; Eriksen, J.
Vitaminer, mineraler og foderværdi i forskellige græsmarksarter samt bælgplanternes N-dynamik samt kløvertræthed
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2011 URL: http://orgprints.org/20621/4/20621.pdf
Imagem não selecionada

Imprime registro no formato completo
Dyrkning af lucerne Organic Eprints
Søegaard, K.; Kristensen, T.; Eriksen, J..
Lucerne giver både i renbestand og blandet med græs høje udbytter ved slæt. Ved afgræsning er lucerne også god, men der mangler egnede sorter.
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2009 URL: http://orgprints.org/17833/4/17833.pdf
Imagem não selecionada

Imprime registro no formato completo
Effect of age and cutting frequency on below-ground biomass in grass-clover Organic Eprints
Vinther, F.P..
Significant amounts of plant biomass and fixed N are incorporated into soil as roots, nodules and root exudates during the growth of grass-clover, which consequently is exposed to soil microbial degradation when the field is ploughed. This has major implications for our understanding of the potential contributions of legumes in the N economics and losses in grass-clover cropping systems. We have studied the effects of grass-clover pasture age and cutting frequency (simulated grazing) on the development of the above ground as well as the below ground plant biomass, with emphasis on below-harvest contribution to the total N2 fixation.
Tipo: Conference paper, poster, etc. Palavras-chave: Nutrient turnover; Pasture and forage crops.
Ano: 2004 URL: http://orgprints.org/3368/1/3368.pdf
Imagem não selecionada

Imprime registro no formato completo
Effect of deep-rooted plant species on 15Nitrogen uptake and herbage yield in temporary agricultural grasslands Organic Eprints
Pirhofer-Walzl, K.; Eriksen, J.; Rasmussen, J.; Søegaard, K.; Høgh-Jensen, H.; Rasmussen, J..
Aims: Increase of plant diversity has been suggested to enhance grassland productivity and resource use efficiency. Most studies on agricultural grasslands have focused on functional diversity of mixtures comprising legumes and non-legumes, but there is little knowledge of plant nutrient acquisition from deep- and shallow-rooted grassland plant species. To investigate whether deep-rooted (chicory: Cichorium intybus L.; Lucerne: Medicago sativa L.) and shallow-rooted (perennial ryegrass: Lolium perenne L.; white clover: Trifolium repens L.) grassland plant species differ in herbage yield and depth dependent soil N-access, we investigated in the field if 1) a mixture comprising shallow- and deep-rooted grassland plant species has greater herbage yields than...
Tipo: Journal paper Palavras-chave: Pasture and forage crops.
Ano: 2012 URL: http://orgprints.org/20614/4/20614.pdf
Imagem não selecionada

Imprime registro no formato completo
Effect of individual grass species and grass species mixtures on soil quality as related to root biomass and grass yield Organic Eprints
Eekeren, Nick J.M.; Bos, Merijn M.; Wit, J. de; Keidel, H.; Bloem, J..
For the purpose of feeding value, drought resistance and nitrogen utilization, other grasses (e.g. Festuca arundinacea and Dactylis glomerata) than the currently widely used perennial rye grass (Lolium perenne) are introduced in dairy farming, either as a monoculture or in a mixture. To study the effect of these grasses on yield and soil chemical and biological quality, the three species were sown in a field experiment in monoculture and in two mixtures.Within two growing seasons, the grass species tested under high soil fertility conditions did not show significant effects on most of the tested soil biological parameters. Only for the mixture of L. perenne and D. glomerata a higher soil NO3− and mineral N content were most probably related to a higher...
Tipo: Journal paper Palavras-chave: Pasture and forage crops; Crop combinations and interactions.
Ano: 2010
Imagem não selecionada

Imprime registro no formato completo
Effect of legume–grass silages and a-tocopherol supplementation on fatty acid composition and a-tocopherol, b-carotene and retinol concentrations in organically produced bovine milk Organic Eprints
Höjer, Annika; Adler, Steffen; Martinsson, Kjell; Jensen, Søren K.; Steinshamn, Håvard; Thuen, Erling; Gustavsson, A.-M..
Two feeding experiments were performed to study the effects of silage botanical composition, regrowth interval and α-tocopherol supplementation on the fatty acid (FA) composition and α-tocopherol, β-carotene and retinol concentrations of milk. In experiment 1, 24 Swedish Red dairy cows were fed two- or three-cut red clover-grass silages (R2 and R3, respectively), or two-cut birdsfoot trefoil-grass silage (B2). In experiment 2, 16 Norwegian Red dairy cows were fed short-term ley silage with red clover (S3) or long-term ley silage with white clover (L3) in combination with supplementation of RRR-α-tocopheryl acetate (1,600 mg/day). The FA proportions in the milk and the recoveries of C18:2n-6 and C18:3n-3 were higher on the red clover diets R2 and S3 than on...
Tipo: Journal paper Palavras-chave: Dairy cattle; "Organics" in general; Pasture and forage crops.
Ano: 2012
Imagem não selecionada

Imprime registro no formato completo
Effect of pasture botanical composition on milk composition in organic production Organic Eprints
Adler, Steffen; Dahl, A.V.; Vae, A.H.; Thuen, E.; Garmo, T.; Krogh-Jensen, S.; Hansen-Møller, J.; Steinshamn, Håvard.
Milk samples from sixteen Norwegian Red dairy cows grazing mixed swards of either grass-red clover (GR) or mixed swards of sown and unsown species of grass, clover and other herbs (GCH) were collected during four periods. Both pastures were organically managed. Pasture botanical composition had no effect on milk fat, protein or vitamin concentration and only minor effects on fatty acid composition. Milk from GR had higher concentrations of the phytoestrogens equol, genistein and biochanin A than the milk from GCH. Concentrations of equol in milk from GR were higher than concentrations reported from experiments with red clover silage. The oxidative stability of the milk lipids was not affected by pasture type.
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle; Pasture and forage crops; Feeding and growth.
Ano: 2010 URL: http://orgprints.org/17493/1/147_Adler_AH.pdf
Imagem não selecionada

Imprime registro no formato completo
Effects of Cattle Slurry on the Growth Potential and Clover Proportion of Organically Managed Grass–Clover Leys Organic Eprints
Steinshamn, Håvard.
The growth potential of grass-clover leys as influenced by cattle slurry application and clover content was studied in field experiments during three growing seasons at four locations. A grassland growth model was used to quantify growth potential and to separate the influence of weather variables from factors related to the plant stand. Application of cattle slurry increased the initial relative growth rate (R-s), on average from 0.21 to 0.23 g g(-1) day(-1) of the spring growth. In regrowth the effect of cattle slurry was less pronounced. The effect of cattle slurry declined with increasing R-s of the unfertilized treatment and rose with increasing rate of ammonium N applied by the slurry. The positive response to cattle slurry application on R-s was...
Tipo: Journal paper Palavras-chave: Pasture and forage crops; Farm nutrient management; Composting and manuring.
Ano: 2001 URL: http://orgprints.org/6009/1/cattle_slurry_growth_rate_acta_scand_steinshamn_2001.pdf
Imagem não selecionada

Imprime registro no formato completo
Effects of cropping practice dynamics on permanent grassland vegetation during the conversion to organic farming Organic Eprints
GAUJOUR, E.; AMIAUD, B.; FIORELLI, J.-L.; MIGNOLET, C.; COQUIL, X..
The aim of this work was to identify the impact of farming practices on permanent grassland vegetation during the conversion from conventional to organic farming. We considered functional and species diversities in order to compare the different grassland categories based on the farming practices used over a period of six years - five years before conversion and one year after. We identified three categories of grasslands: those generally cut twice a year, those intensely grazed, and those that were used under diversified practices. We showed that grasslands characterised by cutting and low fertilization level have the highest species richness compared to the other two categories (23.2, 16.9 and 17 species, respectively), and the lowest pastoral index...
Tipo: Journal paper Palavras-chave: Pasture and forage crops; Biodiversity and ecosystem services.
Ano: 2009 URL: http://orgprints.org/15487/1/32%2DGaujour.pdf
Imagem não selecionada

Imprime registro no formato completo
Effects of cutting frequency on plant production, N-uptake and N2 fixation in harvested and below-harvest plant biomass of grass clover Organic Eprints
Vinther, F.P..
Nitrogen (N) accumulating in stubble, stolons and roots is an important component in N balances in perennial ryegrass-white clover swards, and the effects of cutting frequency on the biomass of above- and below-harvest height were studied during two consecutive years. Total dry matter (DM) and total N production, and N2 fixation, were measured at two cutting frequencies imposed in the summers of two years either by cutting infrequently at monthly intervals to simulate mowing or by frequent cutting at weekly intervals to simulate grazing. Total DM production harvested was in the range 3000 - 7000 kg DM ha-1 with lower DM production associated with the frequent cutting treatment, and it was significantly affected by the different weather conditions in the...
Tipo: Journal paper Palavras-chave: Nutrient turnover; Pasture and forage crops; Farm nutrient management.
Ano: 2006 URL: http://orgprints.org/10066/1/10066.pdf
Registros recuperados: 359
Primeira ... 123456789 ... 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