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Registros recuperados: 35
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Auswirkungen der Grünlandnachsaat in einer Kurzrasenweide bei Biologischer Bewirtschaftung Organic Eprints
Starz, Walter; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes; Schmied, Veronika.
Die Kurzrasenweide ist ein geeignetes Weidesystem für die Low-Input Milchviehhaltung und daher auch für die Biologische Landwirtschaft interessant. Weidehaltung bietet nicht nur wirtschaftliche Vorteile, sondern passt auch ideal zu den Werten der Biologischen Landwirtschaft. Bei der Umstellung eines Milchviehbetriebes auf ein Weide basiertes Fütterungssystem müssen vorher als Mähwiesen genutzte Flächen beweidet werden. Durch die Bewirtschaftungsänderung von einer Schnittwiese zur Kurzrasenweide sind Auswirkungen auf den Pflanzenbestand sowie auf die Mengen- und Qualitätserträge zu erwarten. Um diese Hypothesen zu überprüfen, wurde ein 3-jähriger Feldversuch am Bio Lehr- und Forschungsbetrieb des LFZ Raumberg-Gumpenstein von 2007-2009 angelegt. In dieser...
Tipo: Report Palavras-chave: Pasture and forage crops.
Ano: 2011 URL: http://orgprints.org/18806/1/Abschlussbericht_Kuwei.pdf
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Auswirkungen unterschiedlicher Aufwuchshöhen im Koppelsystem Ertrag und Graszuwachs Organic Eprints
Starz, Walter; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes.
Bei der Koppelweidehaltung ist die angestrebte Aufwuchshöhe am ersten Auftriebstag eine entscheidende Größe für die Anzahl an benötigten Koppeln. Welchen Einfluss unterschiedliche Zielaufwuchshöhen auf den Jahresertrag und den Graszuwachs haben wurde auf einer Dauerweidefläche am Versuchsbetrieb des Instituts für Biologische Landwirtschaft und Biodiversität der Nutztiere am Lehr- und Forschungszentrum für Landwirtschaft Raumberg-Gumpenstein im Vegetationsjahr 2013 untersucht. Dabei wurden 3 unterschiedliche Höhen (niedrig, mittel und hoch) miteinander verglichen und die Erträge mittels Weidekörben gemessen. Dabei erzielte die niedrige Wuchshöhe (10.343 kg TM/ha) einen signifikant geringeren Jahresertrag gegenüber den mittleren (12.119 kg TM/ha) und hohen...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop husbandry.
Ano: 2014 URL: http://orgprints.org/27800/1/13_Starz2.pdf
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Blattdüngung auf einer 3-Schnitt Dauerwiese mit einem karbonatischen Pflanzenstärkungsmittel auf Basis von CO2 Freisetzung in den Spaltöffnungen Organic Eprints
Starz, Walter; Rohrer, Hannes; Pfister, Rupert.
Der Versuch wurde am Bio-Lehr- und Forschungsbetrieb des LFZ Raumberg-Gumpenstein in Pürgg-Trautenfels durchgeführt. Untersucht wurde wie sich der Pflanzenbestand sowie der Ertrag nach unterschiedlichen Düngungsniveaus und dem Einsatz des Pflanzenstärkungsmittels Agrosol verändert: Wenig bis keine Veränderungen konnten im Pflanzenbestand festgestellt werden. Lediglich bei der Gemeinen Rispe war ein vermindertes Auftreten nach der Versuchszeit in allen Varianten feststellbar. Die LAI Messungen zeigten in jeder der 3 gemessenen Höhen (0, 10 und 20 cm) keine signifikanten Unterschiede zwischen den Varianten. Zwischen den 4 Varianten (Düngung mit 80 und 120 kg N aus Gülle sowie mit und ohne Agrosol Anwendung) gab es auch keinen signifikanten Unterschied im...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop husbandry.
Ano: 2014 URL: http://orgprints.org/27801/1/15_Starz3.pdf
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Changing towards a seasonal low-input pastoral dairy production system in moutainous regions of Austria - results from pilot farms during reorganisation Organic Eprints
Steinwidder, Andreas; Starz, Walter; Podstatzky, Leopold; Kirner, Leopold; Pötsch, Erich M.; Pfister, Rupert; Gallnböck, Markus.
To get informations on pastoral milk production in mountainous regions a research project with six pilot dairy farms (5 organic, 1 low input) was carried out. The farms were supervised during the reorganisation period leading to a seasonal milk production system. Within an observation period of three years a strict annual cycle in milk production and reproduction was implemented on two farms only. Depending on the farm specific conditions and the implementation level of the low-input strategy on average a pasture proportion of 42 % (26 to 61 %) of the total DM intake y-1 could be determined. On four farms, which fed low amounts of supplemental feed during the grazing period, a pasture proportion of 50 % of the total DM intake y-1 was realized in the last...
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle.
Ano: 2010 URL: http://orgprints.org/19340/1/EGF_2010.pdf
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Close relationship between pre- and post-calving reticuloruminal pH Levels in dairy cows Organic Eprints
Steinwidder, Andreas; Horn, Marco; Pfister, Rupert; Rohrer, Hannes; Gasteiner, Johann.
The aim of the present study was to investigate the effects of prepartum reticuloruminal pH values on postpartum pH values of lactating cows at two concentrate supplementation levels. An indwelling pH measurement system with a wireless data transmitting unit was given to 9 heifers and 11 cows orally 2 weeks before expected calving. The pH was measured from week 2 prepartum to week 6 postpartum. Prepartum, all animals were fed hay and grass silage only. After parturition the animals were assigned to one of two concentrate supplementation levels (Con and Low). During the first 6 weeks postpartum, 5.6 kg and 2.9 kg dry matter per day of concentrates were fed to cows in groups Con and Low, respectively. Before parturition, no effect of the week on the mean pH...
Tipo: Journal paper Palavras-chave: Production systems; Health and welfare.
Ano: 2015 URL: http://orgprints.org/32827/7/pHCalving_Steinwidderetal_LivestockScience2015.pdf
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Continuous grazing in comparison to cutting management on an organic meadow in the eastern Alps Organic Eprints
Starz, Walter; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes.
Continuous grazing is an appropriate pasture system for dairy cows in low input milk production systems like organic farming. Grazing increases for economic reasons and is also caused by regulations in organic farming. If a dairy farm converts a pasture-based system,cows will start grazing on a cutting-managed meadow. Due to the utilisation changing from cutting to grazing, a conversion of the botanical composition and the quantity and quality yield is expected. To document and assess such conversions, a three-year field trial was carried out on the organic grassland and dairy farm of the AREC Raumberg-Gumpenstein between 2007 and 2009. In this study, changes in the botanical composition were found. In contrast to botanical composition, no significant...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2010 URL: http://orgprints.org/18010/1/EGF_Starz_AH.pdf
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Do different cow types respond differently to a reduction of concentrate supplementation in an Alpine low-input dairy system? Organic Eprints
Horn, Marco; Steinwidder, Andreas; Pfister, Rupert; Gasteiner, Johann; Vestergaard, M.; Larsen, Torben; Zollitsch, Werner.
Forage based low-input dairy systems include a certain risk of a temporary undersupply with nutrients and energy. Therefore the aim of the present study was to investigate the productive, reproductive and metabolic response of two different dairy cow types to a reduction of concentrate supplementation in an Alpine low-input milk production system. The cow types compared were conventional Austrian Brown Swiss (BS) and a specific strain of Holstein Friesian (HFL). The latter was primarily selected for lifetime performance and Fitness under low-input conditions and is therefore considered by Farmers as being better suited for low-input production systems. Both genotypes were assigned to one of two concentrate supplementation levels, receiving 618 kg (Con) or...
Tipo: Journal paper Palavras-chave: Production systems.
Ano: 2014 URL: http://orgprints.org/32831/6/Do%20different%20cow%20types%20respond%20differently%20to%20a%20reduction%20of%20concentrate.pdf
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Effekte der Düngung mit Rohphosphat und elementarem Schwefel auf Körnerleguminosen Organic Eprints
Lehner, Daniel; Starz, Walter; Pfister, Rupert; Rohrer, Hannes.
Körnerleguminosen spielen in der ökologischen Landwirtschaft eine wichtige Rolle, einerseits als hochwertige Proteinquelle, andererseits als zentrales Element der Fruchtfolge. Die Auswirkung der Düngung mit Rohphosphat und elementarem Schwefel auf die vier bedeutenden Körnerleguminosen Ackerbohne, Körnererbse, Lupine und Sojabohne wurde untersucht. Diese beiden wichtigen Nährstoffe können bei gemeinsamer Ausbringung sich in der Wirkung gegenseitig positiv beeinflussen. Das erste Versuchsjahr brachte keine signifikanten Unterschiede in den Ergebnissen, aber eine positive Wirkung des Elementarschwefels.
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Composting and manuring.
Ano: 2019 URL: http://orgprints.org/36153/1/Beitrag_226_final_a.pdf
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Effekte einer Düngung mit elementarem Schwefel auf einer 4-schnittigen Dauerwiese im Alpenraum Organic Eprints
Starz, Walter; Kiendler, Stefanie; Steinwidder, Andreas; Lehner, Daniel; Pfister, Rupert; Rohrer, Hannes.
Schwefel ist ein wichtiger Pflanzennährstoff und die Immissionen aus der Atmosphäre gingen seit 1980 stark zurück. Unter diesen Rahmenbedingungen wurde der Einsatz eines elementaren Schwefeldüngers ("Sulfogüll plus" von BvG) auf einer 4-schnittigen Dauerwiese getestet. Vier Schwefeldüngungsstufen von 0 (S0), 30 (S30), 60 (S60) und 90 (S90) kg S/ha stellten die Varianten dar. Variante S60 und S90 erreichten die signifikant höchste TM- (S60 10.779 und S90 11.073 kg/ha) XP- (S60 1.749 und S90 1798 kg/ha) und Energie-Erträge (S60 64.008 und S90 65.370 MJ/ha) im Vergleich zur Variante S0 (TM: 9.947 kg/ha, XP: 1.569 kg/ha, Energie: 58.434 MJ NEL/ha). Ein Ziel der Bio-Landwirtschaft ist, möglichst viel Eiweiß aus dem Grünland zu gewinnen. In diesem Fall dürfte...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Composting and manuring.
Ano: 2019 URL: http://orgprints.org/36075/1/Beitrag_144_final_a.pdf
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Eignung des Anbaues von Körnerleguminosen zur Humanernährung im Alpenvorland Organic Eprints
Lehner, Daniel; Mayr, Tobias; Starz, Walter; Gollner, Gabriele; Pfister, Rupert; Rohrer, Hannes; Friedel, Jürgen K..
Die Anbaueignung sechs verschiedener traditioneller Speisekörnerleguminosen (Alblinse, Berglinse, Rotholzer Trockenbohne, Black Turtle Buschbohne, Palerbse und blaue Lupine) im Alpenvorland wurde in diesem Versuch getestet. Die Versuchsfragen waren Anbaueignung, Unterschiede im Saatsystem (Breitsaat und Reihensaat) sowie Deckungsbeiträge. Unter allen Speisekörnerleguminosen erzielten die Bohnen die höchsten Erträge (1028 und 1628 kg/ha), gefolgt von der Palerbse (766 kg/ha) und den Linsen (457 und 537 kg/ha). Zwischen den beiden Saatsystemen zeigten sich keine signifikanten Unterschiede.
Tipo: Conference paper, poster, etc. Palavras-chave: Vegetables Cereals; Pulses and oilseeds Weed management.
Ano: 2019 URL: http://orgprints.org/36164/1/Beitrag_237_final_a.pdf
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Einfluss der Umstellung von Stall- auf Weidefütterung auf den Vormagen pH-Wert von Milchkühen Organic Eprints
Steinwidder, Andreas; Horn, Marco; Pfister, Rupert; Rohrer, Hannes; Gasteiner, Johann.
To investigate the effect of feed transition from barn feeding to pasture on the course of ruminal pH a study with 8 lactating dairy cows was undertaken. Therefore, an indwelling pH-measurement and data transmitting system was used. The experiment started at 27th March 2012 and a gradual transition from barn feeding to pasture feeding was done (periods P1-P6). After 7 days of barn feeding (P1) animals were given pasture progressively with increasing grazing time from 2 to 7 h/d (P2, day 8-14). In P3 (day 15-21) the cows spent 7 hours/d on pasture. Beginning on day 22, animals had 20 h/d access to pasture (continuous grazing), only semi-daily interrupted for 2 hours for milking and additional feeding (P4-P6). During the barn feeding period (P1), average...
Tipo: Conference paper, poster, etc. Palavras-chave: Feeding and growth.
Ano: 2013 URL: http://orgprints.org/21143/1/21143_steinwidder.pdf
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Einfluss der Weideaufwuchshöhe auf Ertrag und Zuwachsleistung im Berggebiet Organic Eprints
Starz, Walter; Steinwidder, Andreas; Weißenbach, C.; Pfister, Rupert; Rohrer, Hannes.
Sward height is a key parameter for rotational grazing. Influence of different sward heights (low: 8 cm, medium: 10 cm, high: 12 cm) on DM yield and grass growth rate were investigated on an intensive grazed area at the research farm of the Organic Institute of AREC Raumberg-Gumpenstein during the vegetation period of 2013. The significant highest yields were found in treatment “high” (12,581 kg DM ha-1) and “medium” (12,119 kg DM ha-1). Treatment “low” reached a yield of 10,343 kg DM ha-1. During summer, grass growth rate was about 60 kg DM ha-1 day-1 in average.
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Farm economics.
Ano: 2017 URL: http://orgprints.org/31572/1/Einfluss%20der%20Weideaufwuchsh%C3%B6he%20auf%20Ertrag%20und.pdf
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Einfluss der Wirtschaftsdüngerform auf die Entwicklung von Dauergrünlandbeständen im Berggebiet Organic Eprints
Starz, Walter; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes.
In this study slurry, manure and compost from dairy cattle were used on a newly sown meadow. The influence of these three fertilisers on botany and forage yield were tested in a randomized block design. The amount of farm fertilizers was calculated by 1.2 LU ha-1 considering quantity storage losses. No differences between used organic farm fertilisers in botanical composition were found. The highest LAI (4,7 ground level) and the highest dry matter yield of 11,045 kg DM ha-1 were measured in slurry fertilisation.
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Composting and manuring.
Ano: 2017 URL: http://orgprints.org/31931/1/Einfluss%20der%20Wirtschaftsd%C3%BCngerform%20auf%20die%20Entwicklung.pdf
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Einfluss des Rührens von Rindergülle auf den pH-Wert während der Lagerung Organic Eprints
Starz, Walter; Ehrmann, S.; Rohrer, Hannes; Pfister, Rupert.
Slurry is known as a source of ammonia (NH3), methane (CH4) and nitrous oxide (N2O) emissions. NH3 emissions depend on the pH value of the slurry and previous studies show that emissions could be reduced by lowering the pH. In order to estimate the influence of stirring on the pH and the NH3 emission potential of cattle slurry, three treatments (A not stirred, B stirred for 1 x 60 min and C stirred for 6 x 10 min per day) were compared. The results show that no positive effects of stirring cattle slurry, neither in economic nor in ecological terms, can be expected.
Tipo: Conference paper, poster, etc. Palavras-chave: Composting and manuring Recycling; Balancing and resource management.
Ano: 2017 URL: http://orgprints.org/31573/1/Einfluss%20des%20R%C3%BChrens%20von%20Rinderg%C3%BClle%20auf%20den%20pH-Wert.pdf
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Entwicklung betriebsangepasster Strategien zur Reduktion des Kraftfuttereinsatzes in Bio-Milchviehbetrieben Organic Eprints
Steinwidder, Andreas; Starz, Walter; Gotthardt, Agnes; Pfister, Rupert; Rohrer, Hannes.
In a three year on-going project 10 organic dairy farms are supervised by developing farm adopted strategies to reduce the concentrate input in dairy cow feeding. The researchers and advisors consult and accompany the pioneering group. They stimulate active learning and record the results and experiences. Different approaches are used in the project to achieve the project aim: (1) discussions about possible strategies and their results (2) on-farm documentations and observational research, monitoring and comparison, (3) evaluation and systematic inclusion of the experiences of farmers (stable schools), advisors and researchers in the project, (4) describing “systems that work”. Within the first two project years, farmers reduced the concentrate input from...
Tipo: Conference paper, poster, etc. Palavras-chave: Farm economics; Feeding and growth; Environmental aspects; Knowledge management.
Ano: 2013 URL: http://orgprints.org/21195/1/21195_steinwidder.pdf
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Ergebnisse zur saisonalen Low-Input Vollweidehaltung von Milchkühen im österreichischen Berggebiet Organic Eprints
Steinwidder, Dr. Andreas; Starz, DI Walter; Podstatzky, Dr. Leopold; Kirner, Dr. Leopold; Pötsch, Doz. Dr. Erich M.; Pfister, Rupert; Gallnböck, Ing. Markus.
In a research project six dairy farms (5 organic, 1 low input) in mountainous regions of Austria were supervised in converting to a seasonal low-input dairy production system based on grazing. Within an observation period of three years (October 1st, 2004 – September 30th, 2007) a strict annual cycle in milk production and reproduction could be implemented on two farms only. In average a pasture proportion of 42 % (26–61 %) of the total feeding ration per year could be determined, depending on the farm specific conditions and the implementation level of this low input strategy. On four farms, which fed low amounts of supplemental feeds, a pasture proportion of 50 % of the total feeding ration was realized. With an input of only 470 kg DM...
Tipo: Conference paper, poster, etc. Palavras-chave: Dairy cattle.
Ano: 2009 URL: http://orgprints.org/13898/1/Steinwidder_13898.pdf
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Ernte- und Qualitätserträge einer simulierten Kurzrasen- und Koppelweide bei trockenheitsgefährdetem Dauergrünland Organic Eprints
Starz, Walter; Kreuzer, Josef; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes.
Continuous (CG) and rotational grazing (RG) are important strategies for pasture based organic milk production systems. This study tests both grazing systems on their suitability for permanent grassland areas with drought tendency. The investigation was carried out on an organic dairy farm in Lower Austria on a permanent pasture sward in 2010. Simulated grazed swards were used at an average sward height of 8.5 cm (CG) and 14.8 cm (RG). CG variant was cut 9 times and RG variant 6 times in 2010. Low precipitation periods showed an effect on CG by reducing grass growth. RG reached significant higher yields in dry matter (10,561 kg ha-1), net energy lactation (68,359 MJ ha-1) and crude protein (1,916 kg ha-1) as CG (7,753 kg DM ha-1, 52,792 MJ NEL ha-1 and...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2013 URL: http://orgprints.org/21326/1/21326_starz.pdf
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Ertrag und Futterqualität bei Weide- und Schnittnutzung im ostalpinen Berggebiet Organic Eprints
Starz, Walter; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes.
In this study, the impact of grazing in comparison to cutting on yield and forage feeding value at permanent grassland swards was investigated. A six-year trial (2007- 2012) was established at the Institute of Organic Farming of AREC Raumberg- Gumpenstein to test four types of permanent grassland uses (1: annual change between cutting and grazing; 2: four times cutting year-1; 3: cut of the first growth following grazing; 4: grazing). There were found no significant differences in the DM yield between the four variants. The significant highest crude protein yield (over 1,843 kg ha-1) was found in the grazing system. Energy concentration of grazed swards reached 7 MJ NEL kg-1 DM during spring and decreased to 6.2 MJ NEL kg-1 DM during summer. Crude...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops Crop health; Quality; Protection.
Ano: 2017 URL: http://orgprints.org/31953/1/Ertrag%20und%20Futterqualit%C3%A4t%20bei%20Weide-%20und%20Schnittnutzung.pdf
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Etablierung von Wiesenrispengras in einer 3-schnittigen Dauerwiese mittels Kurzrasenweide Organic Eprints
Starz, Walter; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes.
Poa pratensis is one of the most important grass species in Alpine region with a high protection against weed infestation. The most difficulties for an establishment in permanent grassland are a steady juvenile growth and a low competitive strength during this time. In a four-year (2008-2011) field trial the establishment of P. pratensis using continuous grazing in permanent grassland was investigated at the organic grassland and dairy farm of the AREC Raumberg-Gumpenstein. Variant 1 was used under a three times cutting management. During two years of continuous grazing (2008-2009), variant 2 was treated without reseeding and variant 3 was reseeded with P. pratensis variety BALIN three times (each time with 10 kg ha-1) in 2008. In 2010 and 2011 all three...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops.
Ano: 2013 URL: http://orgprints.org/21321/1/21321_Starz.pdf
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Forage feeding value of continuous grazed sward on organic permanent grassland Organic Eprints
Starz, Walter; Steinwidder, Andreas; Pfister, Rupert; Rohrer, Hannes.
Continuous grazing provides low-cost forage with a high feeding value for milk and beef production and is a suitable pasture system in organic farming. To assess the forage feeding value of continuously grazed sward, a 3-field trial was carried out under harsh east Alpine conditions (680 m altitude, 7°C average temperature, 1000 mm annual precipitation). Forage contents of net energy (6.3-7.0 MJ NEL kg-1 DM) and crude protein (202-236 g kg-1 DM) varied on a high level during the vegetation period. Moreover, amounts of crude fibre (176-243 g kg-1 DM) and neutral detergent fibre (373-475 g kg-1 DM) were within the recommended range for ruminates. In conclusion, continuous grazing as a possible organic grassland use under harsh climate conditions can be...
Tipo: Conference paper, poster, etc. Palavras-chave: Pasture and forage crops; Feeding and growth.
Ano: 2011 URL: http://orgprints.org/19342/1/Forage_feeding_value_of_continuous_grazed_sward_on_organic_permanent_grassland.pdf
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