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| Registros recuperados: 359 | |
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| Finze, Jana; Böhm, Herwart. |
| Ampfer breitet sich im ökologisch bewirtschafteten Grünland zunehmend aus. Das Institut für ökologischen Landbau der Bundesforschungsanstalt für Landwirtschaft in Trenthorst führte daher im Rahmen eines Projektes des Bundesprogramms Ökologischer Landbau Versuche zur Regulierung von Ampfer im Grünland durch (Direkte Kontrolle mittels manuellem Ampferstechen, maschinellem Ampferstechen mit der Wurzelziehmaschine WUZI und Abflammen jeweils mit und ohne Nachsaat sowie Auswirkungen des Beweidungsmanagements) und befragte bundesweit 156 ökologisch wirtschaftende Landwirte. Die Umfrage zeigte, dass fast die Hälfte der Betriebe Probleme mit Ampfer im Grünland haben, bei weiteren zwanzig Prozent sind diese Probleme sogar besonders gravierend. Jeder Betrieb hat auf... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops; Weed management. |
| Ano: 2004 |
URL: http://orgprints.org/3520/1/Ampfer%2DBioland01%2D04.pdf |
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| Sørensen, Peter; Kristensen, E.; Odokonyero, K.; Petersen, S.O.. |
| The utilization of nitrogen (N) in green manure leys can be improved by harvesting, storage and spreading of the plant material as manure in other crops. By green manure storage as silage, storage losses of N are lower than by composting. Also, a relatively high fertilizer value of silage N is achievable depending on the C/N ratio of the material. Nitrogen availability in green manure leys is higher after storage as silage compared to composting. Use of mobile green manures is mainly relevant in arable cropping systems without livestock where utilization of the roughage for animal feed or biogas production is impossible, as costs for ley/roughage harvest and transport can be relatively high. Our study showed that surface application of green manure silage... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops; Composting and manuring; Farm nutrient management. |
| Ano: 2013 |
URL: http://orgprints.org/24575/1/24575.pdf |
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| Cuttle, Dr Steve. |
| This is the final report of Defra project OF0180 In 1998, the organic dairy herd at Ty Gwyn, Trawsgoed was split into two herds to examine the physical and financial implications of adopting different feeding strategies and levels of feed self-sufficiency (DEFRA Project OF0146). A self-sufficient system (SS) in which cows were fed a high forage diet supplemented with home-grown cereals was compared with a system in which concentrate feeds were purchased from outside the farm (PC). The present study determined nutrient budgets for the two systems and used models to estimate the various forms of N loss. These studies were supported by field studies to provide additional information about areas of uncertainty identified in previous budget calculations.... |
| Tipo: Report |
Palavras-chave: Pasture and forage crops; Dairy cattle; Farm nutrient management. |
| Ano: 2002 |
URL: http://orgprints.org/8167/1/OF0180_2030_FRP.pdf |
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| Intresset för åkerböna (Vicia faba L.) har ökat de senaste åren, både inom konventionell och ekologisk odling. För att nå ett uthålligt växtodlingssystem är ärter och åkerbönor intressanta genom sin kvävefixerande förmåga, inte minst i ekologiska system. Ärter kan drabbas av ärtrotröta om de förekommer för tätt i växtföljden, varför åkerböna är ett alternativ. Att nå mogen skörd med åkerböna kan vara ett problem, utom i de sydligaste delarna av landet. Alternativet är då att skörda den som helsädesensilage, gärna i samodling med spannmål. Syftet med forskningsprogrammet är att ge underlag till optimal skördetid för helsäd av spannmål och åkerböna. Projektet ska också utvärdera grödans fodervärde och avkastning, samt ensilerbarhet. Projektets huvuddel... |
| Tipo: Project description |
Palavras-chave: Pasture and forage crops. |
| Ano: 2023 |
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| Jensen, Søren K.; Hymøller, L.; Soegaard, Karen; Lindqvist, H.; Nadeau, E.. |
| For at undersøge stabiliteten af vitaminer i moderne ensilage- og høproduktion, har FØJO III projektet ECOVIT, igennem to vækstår, målt vitaminindholdet i forskellige græsmarksafgrøder ved forskellige høsttidspunkter og sletintervaller. Resultaterne viser, at det største tab af vitaminer og umættede fedtsyrer sker i forbindelse med forvejringen, mens tabet i lagringsperioden er begrænset. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Pasture and forage crops. |
| Ano: 2010 |
URL: http://orgprints.org/19767/1/ICROF_Nyt2010_2.pdf |
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| Döring, Thomas F.; Baddeley, J. A.; Brown, RJ; Collins, R; Crowley, Oliver; Cuttle, Steve; McCalman, Heather; Pearce, Bruce; Roderick, Stephen; Stobart, Ron; Storkey, Jonathan; Watson, Christine; Wolfe, Martin; Jones, H E. |
| As costs for mineral fertilizers rise, legume-based leys are recognised as a potential alternative nitrogen source for crops. Here we demonstrate that including species-rich legume-based leys in the rotation helps to maximize synergies between agricultural productivity and other ecosystem services. By using functionally diverse plant species mixtures these services can be optimised and fine-tuned to regional and farm-specific needs. Field experiments run over three years at multiple locations showed that the stability of ley performance was greater in multi-species mixtures than in legume monocultures. In addition, mixing different legume species in the ley helps to suppress both early and late weeds. Further, combining complementary phenologies of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops; Nutrient turnover; Biodiversity and ecosystem services. |
| Ano: 2012 |
URL: http://orgprints.org/20718/1/Doring_et_al_2012_Legume_mixtures_for_ecosystem_service_delivery_%2D_overview.pdf |
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| Rodehutscord, Markus. |
| In zwei aufeinander folgenden Jahren wurden Untersuchungen zu Fragen der Nutzung von n-Alkanen als Marker zur Bestimmung der Höhe der Futteraufnahme durchgeführt. Dazu standen Flächen von extensiv geführtem Grünland zur Verfügung, die entweder keiner oder einer Düngung mit 70 kg N/ha aus Gülle unterlagen. Von diesen Flächen wurde sowohl Weidefutter als auch Grassilage gewonnen und in jeweils 2 Bilanzversuchen an weibliche Rinder verfüttert. Im Zuge dieser Versuche wurden die Verdaulichkeiten der Rohnährstoffe und die Energiekonzentrationen ermittelt. Die aus den Bilanzversuchen ermittelten Wiederfindungen für einzelne n-Alkane wurden zur Schätzung der Futteraufnahme weidender Rinder verwendet. Zudem wurde versucht, aus einer Gegenüberstellung der... |
| Tipo: Project description |
Palavras-chave: Pasture and forage crops; Feeding and growth; Beef cattle. |
| Ano: 2006 |
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| Ferreira, Luiz Carlos Britto; Machado Filho, Luiz Carlos Pinheiro; Hotzel, Maria José; Labarrère, Juliana Guimarães. |
| O objetivo foi avaliar o efeito de diferentes disponibilidades de sombreamento na distribuição das fezes na pastagem. Mediu-se as freqüências de distribuição das vacas e das fezes nas subáreas dos piquetes, num desenho experimental quadrado-latino (4x4), com os tratamentos: sem sombra (“sol”), sombra “única”, sombra em “bosque” e sombra “dispersa”. A análise estatística feita pelo teste do qui-quadrado constatou que as freqüências observadas das vacas e das fezes nos quadrantes foram diferentes das esperadas em todos os tratamentos (p< 0,01), exceto para a distribuição das fezes no tratamento “dispersa”. A correlação entre a freqüência das vacas e a quantidade de fezes no mesmo quadrante foi de 79%, 49%, 62% e 3%, para os tratamentos sol, única, bosque... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2011 |
URL: http://orgprints.org/23308/1/Ferreira_Efeito.pdf |
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| Schmeer, Maria; Loges, Ralf; Taube, Friedhelm. |
| An Experiment to examine the nitrogen fluxes after ploughing up and resowing grassland was conducted on the organic experimental station “Lindhof” in northern Germany. The trial was implemented on a uniform grassland site (since 1993) focussing on the factors grassland resowing, fertilisation with organic cattle slurry (0/230 kg ha-1) and year of renovation (2005, 2006, 2008). The factor grassland resowing further involved the following treatments: 1. undisturbed control, 2. ploughing up and resowing grassland in late summer, 3. ploughing up of grassland in autumn followed by winter wheat and grassland resowing the year after, 4. ploughing up of grassland in spring followed by spring wheat and grassland resowing the year after. Ploughing up in autumn... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops. |
| Ano: 2011 |
URL: http://orgprints.org/17609/3/Loges_17609.pdf |
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| Adler, Steffen; Steinshamn, Håvard. |
| Thirty-two dairy farms in Middle-Norway with different grassland systems (short-term (<4 years) grassland (S) or long-term (>7 years) grassland (L)) and different production systems (organic (O) or conventional (C)) were compared in a field study in 2007. In a principal component analysis on variables including farm details, botanical composition and chemical forage composition, the farms were separated into organic and conventional farms with the exception of one farm. Amongst the organic farms most SO farms were distinguished from LO farms. Concentration of forage crude protein was positively correlated with proportion of grass. Concentration of non-fibrous carbohydrates, in vitro digestibility and net energy lactation was positively correlated... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Dairy cattle; Pasture and forage crops. |
| Ano: 2010 |
URL: http://orgprints.org/17497/1/149_Adler_AH.pdf |
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| 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 |
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| Pirhofer-Walzl, K.; Rasmussen, J.; Høgh-Jensen, H.; Eriksen, J.; Søegaard, K.; Rasmussen, J.. |
| Legumes play a crucial role in nitrogen supply to grass-legume mixtures for ruminant fodder. To quantify N transfer from legumes to neighbouring plants in multi-species grasslands we established a grass-legume-herb mixture on a loamy-sandy site in Denmark. White clover (Trifolium repens L.), red clover (Trifolium pratense L.) and lucerne (Medicago sativa L.) were leaf-labelled with 15N enriched urea during one growing season. N transfer to grasses (Lolium perenne L. and xfestulolium), white clover, red clover, lucerne, birdsfoot trefoil (Lotus corniculatus L.), chicory (Cichorium intybus L.), plantain (Plantago lanceolata L.), salad burnet (Sanguisorba minor L.)and caraway (Carum carvi L.) was assessed. Neighbouring plants contained greater amounts of N... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2012 |
URL: http://orgprints.org/20613/4/20613.pdf |
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| 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 |
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| Baars, Ton. |
| This Part describes the agronomic results of the multidisciplinary grassland study. This project concerned the effects of clover varieties and spring applications of animal manure on the yield of grass-white clover mixtures on a moist sandy soil (1993-1996). To be aware of the context of the findings in a multidisciplinary approach, attention was paid to: chemical soil fertility, damage to clover by slugs and soil borne nematodes. To increase the understanding of soil fertility, earthworm dynamics were also measured. At the end of the period the botanical composition of all plots was assessed. Factors measured besides total yield and clover yield were N, P and K yield. It was found that these ‘context ’-measurements were important for the overall... |
| Tipo: Thesis |
Palavras-chave: Pasture and forage crops. |
| Ano: 2002 |
URL: http://orgprints.org/2416/1/g38_h2_1.pdf |
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| Registros recuperados: 359 | |
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