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| Registros recuperados: 15 | |
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| Urbatzka, Peer; Cais, Kathrin; Salzeder, Georg; Wiesinger, Klaus. |
| Leguminous cover crops are one important source of nitrogen in organic stockless farming. Therefore the influence of six legume species in pure stands and one grass-clover mixture on grain yield and quality of the undersown winter rye and of the succeeding crop spring oat was examined. Three field trials were conducted at one experimental site in southern Bavaria (2005/06/07 until 2007/08/09; in 2005/06/07 only three of six leguminous undersowings). Additionally, after the harvest of rye two stubble seeds (clover in pure and mixed stands with vetch and mustard) and a control (rye without cover crop) were established in each year. The cash crop was not affected by the undersown variants with respect to grain yield and quality. However, grain yield of the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions. |
| Ano: 2011 |
URL: http://orgprints.org/17507/3/Urbatzka_17507.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Salzeder, Georg. |
| The impact of seeding time was tested for hybrid rye in a yearlong field trial in Upper Bavaria. The rye (one variety) was seeded with the same sowing density at the end of September and at the mid of October, respectively. The impact of seeding time could be observed year-round: the mass growth before and after winter was obviously reduced by late sowing in comparison to usual seeding time. The results were lower plant height and clearly lower plant density in the variant late seeding time. Finally, the yield in the variant with usual seeding time was 27 % higher than by late sowing. Otherwise, the crude protein content, the falling number and the thousand seed weight were higher by late sowing. All in all, late sowing of hybrid rye may not be... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation. |
| Ano: 2017 |
URL: http://orgprints.org/31533/1/Pr%C3%BCfung%20einer%20Sp%C3%A4tsaat%20bei%20einer%20modernen.pdf |
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| Fuchs, Rupert; Cais, Kathrin; Rehm, Anna; Salzeder, Georg; Wiesinger, Klaus. |
| Zusammenfassung Die Studie zeigt die Ergebnisse einer Serie von Feldversuchen (2002-2006, zwei Orte, Südbayern, durchgeführt nach den Richtlinien des BSA 2000) auf vieharmen Biobetrieben mit Weißklee, Klee-Gras-Mischung, Rotklee und Gelbklee in Zwischenfruchtanbau als Untersaat. Ein Teil wurde in Frühjahrs- und Herbsteinsaat, ein Teil nur in Herbsteinsaat getestet. Zudem wurde ein Gemenge aus Weißem Senf und Sommerwicken in Stoppelsaat geprüft. Sämtliche Zwischenfrucht-Varianten entwickelten sich in allen Jahren und an allen Orten zufriedenstellend. Die Zwischenfrüchte - bis auf die Klee-Gras-Mischung im Herbstanbau – erhöhten die Korn- und Rohproteinerträge der Folgefrucht Hafer. Weißklee in Frühjahrssaat war die beste Untersaatvariante. Untersaaten von... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds. |
| Ano: 2009 |
URL: http://orgprints.org/16163/1/Fuchs_et_al_2009_Zwischenfr%C3%BCchte.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Salzeder, Georg; Herz, Markus. |
| Cropping spring barley, long varieties with vigorous growth are desired in organic farming expecting better regulation of weeds. Six old varieties were compared to three modern varieties in a field trial during 2010 and 2011 nearby Freising, Bavaria. The modern varieties were the recommended varieties for Bavaria at beginning of the trial. Higher crop yields were determined for modern varieties with limitation for one of these varieties. The malt quality of the modern varieties was considerably better than for the old varieties. Vigorous growth and plant length was higher for all and for five of the six old in comparison to modern varieties, respectively. But no differences in weed pressure could be measured due to successful mechanical weed control.... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2013 |
URL: http://orgprints.org/21080/3/21080_Urbatzka.pdf |
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| Urbatzka, Peer; Baur, A.; Salzeder, Georg; Cais, Kathrin. |
| The impact of seed source (conventional or organic farming) is one important question for the variety trials under the conditions of organic farming. Hence, field trials were conducted at two sites in Bavaria in two years (2013-2014). Certified organic seed from a Bavarian propagation were compared to conventional seed, offered by breeders for national variety trials. One until two varieties were examined for winter rye and for winter triticale in each year. Organic seed often showed higher crude protein content, conventional seed had mainly higher thousand seed weight and often superior germination power. The grain yield was mostly higher for conventionally produced seeds than for organic seed at one site, whereas seed source showed no differences with... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation. |
| Ano: 2017 |
URL: http://orgprints.org/31531/1/Pr%C3%BCfung%20der%20Saatgutherkunft%20aus%20%C3%B6kologischem%20und.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Rehm, Anna; Salzeder, Georg; Schätzl, Robert. |
| The cropping of leguminous cover crops usually leads to higher yields in subsequent cereals. The economic efficiency of leguminous cover crops was calculated in several field trials. Criterion was the yield (with adjusted costs) from the succeeding crops winter triticale and spring oats, respectively, after different leguminous cover crops undersown or as stubble seed in comparison to a control plot without cover crop. Thereby, the costs for seeds and the variable machine costs were taken into account. The highest yield was reached for both types of grain following undersown white clover, the second highest following undersown black medic. In contrast, the yield was lower following red clover and grass-clover undersowings as well as different stubble... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Farm economics. |
| Ano: 2013 |
URL: http://orgprints.org/21329/1/21329_Urbatzka.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Salzeder, Georg. |
| The risk of nitrogen leaching in winter after breaking of grass-clover sward can be reduced by delayed ploughing. The impact of ploughing date (either late autumn or spring) was compared regarding grain yield and baking quality of spring wheat. The field trial was conducted from 2001 to 2003 and from 2006 to 2008 on a trial site with sandy-loamy site conditions nearby Freising, Bavaria. Two varieties of spring wheat were examined. Higher baking quality (protein content, falling number, Zeleny index, wet gluten content, loaf volume) was identified in all years after ploughing in late autumn compared to spring ploughing. On the other hand, grain yield was higher after ploughing in spring in two of the six environments, but in one year the opposite... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil tillage. |
| Ano: 2013 |
URL: http://orgprints.org/21339/1/21339_Urbatzka.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Rehm, Anna; Rippel, Rudolf. |
| The research project focused on a status-quo analysis of long-term field experiments for organic farming in Germany, Austria and the German speaking part of Switzerland. The study comprised long-term field experiments with an expected minimum duration of five years. The status-quo analysis categorized the long-term field experiments into four main research fields: a) system comparison, b) production engineering, c) fertilisation and d) soil fertility and further key aspects. All in all, 47 long-term field experiments were identified. The four main research fields chosen were investigated in 20, 24, 27 and 46 long-term field experiments, respectively. The system comparison of the main research fields identified the major research into “conventional versus... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Surveys and statistics; Crop husbandry. |
| Ano: 2013 |
URL: http://orgprints.org/21193/1/21193_Urbatzka.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Rehm, Anna; Rippel, Rudolf. |
| In diesem Forschungsprojekt wurde eine Status Quo Analyse hinsichtlich Dauerversuche für den ökologischen Pflanzenbau im deutschsprachigen Raum und eine Umfrage zur Bestimmung des Forschungsbedarfs bezüglich dieser Dauerversuche durchgeführt. Dabei war ein Dauerversuch mit einer (voraussichtlichen) Mindestlaufzeit von fünf Jahren definiert. Im Rahmen der Status Quo Analyse wurde die Anzahl der Dauerversuche festgestellt und diese nach den vier Oberthemen a) Systemvergleiche, b) Düngung, c) Produktionstechnik und d) Bodenfruchtbarkeit, Umweltwirkungen und weitere Schwerpunkte kategorisiert. Zur Bestimmung des Forschungsbedarfs für zukünftige Dauerversuche wurde ein Fragebogen an 91 Schlüsselpersonen des ökologischen Pflanzenbaus aus Wissenschaft, Beratung... |
| Tipo: Report |
Palavras-chave: Soil quality; Crop husbandry. |
| Ano: 2011 |
URL: http://orgprints.org/19317/1/19317%2D10OE036%2Dlfl%2Drippel%2D2011%2DStatusQuo_dauerversuche.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Salzeder, Georg; Wiesinger, Klaus. |
| The impact of a common and a reduced seeding rate on grain yield and quality for winter triticale was examined in four growing seasons at two experimental sites in Bavaria. Grain yield was lower for reduced seeding rate only in one of the four years in one environment. In that environment weed controlling was impossible because of high precipitation in autumn and spring. This was resulting in markedly higher weed coverage at reduced seeding rate due to a comparatively lower competitiveness. In all other environments no statistical differences in grain yields were determined because of higher 1000 K weight and higher tillering at reduced seeding rate. Fur-thermore, the crude protein content was higher for reduced seeding rate (9.4 and 8.9 % in DM,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2011 |
URL: http://orgprints.org/17393/3/Urbatzka_17393.pdf |
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| Cais, Kathrin; Salzeder, Georg; Urbatzka, Peer. |
| Aktuelle Sorten von Sommergersten weisen eine kurze bis sehr kurze Pflanzenlänge auf. In einem dreijährigen Feldversuch, der die Jahre 2008 bis 2010 umfasste, wurden daher die drei Getreidearten Sommergerste, Sommertriticale und Sommerroggen hinsichtlich ihrer Eignung als Futtergetreide für den ökologischen Landbau evaluiert. Es wurden fünf Sorten Gerste und je zwei Sorten Triticale und Roggen auf den beiden Standorten Viehhausen und Hohenkammer im Landkreis Freising geprüft. Nach Auswertung des Versuches konnte eine vergleichbare Eignung von Sommertriticale als Alternative zur Sommerfuttergerste festgestellt werden. Neben einer guten Gesundheit und einer etwas größeren Wuchslänge erzielte Triticale einen gleichwertigen Ertrag im Vergleich zur... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2012 |
URL: http://orgprints.org/20966/1/Cais%2Det%2Dal_2012_Sommergetreide.pdf |
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| Urbatzka, Peer; Cais, Kathrin; Salzeder, Georg; Wiesinger, Klaus. |
| For stockless organic farming cultivation of leguminous cover crops is an important source for the nitrogen supply of organic cropping systems. However, too strongly developing living mulch systems may affect the undersown cash crop. At two experimental sites in Bavaria the impact of the sowing date of cover crops on grain yield of the undersown cash crop winter rye and the subsequent crop spring oat was determined in two and three field trials, respectively (2003/04/05 until 2004/05/06 and 2002/03/04 until 2004/05/06, respectively). Living mulch treatments were white clover and grass-clover (alfalfa, red and white clover, diverse grasses) with seeding in autumn and spring as well as red clover and black medick with seeding only in autumn. Additionally, a... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions. |
| Ano: 2011 |
URL: http://orgprints.org/17508/3/Urbatzka_17508.pdf |
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| Registros recuperados: 15 | |
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