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| Registros recuperados: 71 | |
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| Castell, Adelheid; Salzeder, Georg; Schmidt, Martin; Urbatzka, Peer. |
| In stockless organic farming, crop rotation is one of the most important factors that determine the success of crop cultivation. Six crop rotation schemes in a long-term experiment of the Bavarian State Research Center of Agriculture at Viehhausen allow the estimation of the effect of crop rotations on grain yield and baking quality of winter wheat. The three and five years crop rotations differed in the utilization of grass clover swards (cutting or mulching), in the following crops (potatoes or barley), in the portion of grass clover swards and in the type of legume (grass clover or grain legume).The lowest grain yield as well as the most inferior baking quality was shown after grain legume. The highest yield was obtained after the two-year grass-clover... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds. |
| Ano: 2015 |
URL: http://orgprints.org/27167/1/27167_castell.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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| Winterling, Andrea; Ostermaier, Miriam; Uhl, Johannes; Urbatzka, Peer. |
| Zur Verbesserung der Anbauwürdigkeit der Blauen Lupine, insbesondere der Beikrautunterdrückung, wurde im Jahr 2017 in einem Feldversuch am Standort Hohenkammer bei Freising der Anbau im Gemenge mit verschiedenen Getreidearten und verschiedenen Saatstärken geprüft. Der Gesamtertrag war im Gemenge höher als in Lupinenreinsaat. Beide Getreidearten sowie beide Lupinensorten kombiniert mit Hafer zeigten im Gemenge höhere Rohproteingehalte als in Reinsaat. Die verzweigte Lupinensorte 'Boregine' war konkurrenz- und ertragsstärker als die endständige Sorte 'Boruta', Hafer war mit einem signifikant höheren Getreideertrag konkurrenzstärker als Weizen. Der Unkrautdruck war bei 'Boruta', aber nicht bei 'Boregine', im Gemenge signifikant geringer als in Reinsaat. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions. |
| Ano: 2019 |
URL: http://orgprints.org/36135/1/Beitrag_207_final_a.pdf |
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| Schneider, Regina; Salzeder, Georg; Schmidt, Martin; Wiesinger, Klaus; Urbatzka, Peer. |
| In organic crop rotations proportion, use and type of legumes have a different effect on subsequent crops. The yield of subsequent cash crops is affected by the farming system (livestock with organic fertilizer or stockless) and the temporal distance of the cash crop to the legume. To investigate the intermediate- and long-term effects on yield and productivity, a long-term field trial with six crop rotations was established in 1997 in Viehhausen, Upper Bavaria (one crop rotation with a period of 5 years, five crop rotations with 3 years). The present report tested these crop rotations regarding yield and productivity for the years 2000 to 2010. Significant differences were determined in productivity when legumes were included into the calculation. Crop... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions. |
| Ano: 2013 |
URL: http://orgprints.org/21331/1/21331_Schneider.pdf |
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| Urbatzka, Peer; Graß, Rüdiger; Schüler, Christian. |
| Die Wintererbse ist eine alte Kulturpflanze, die in Deutschland wegen steigenden Sojaimports und des vermehrten Einsatzes von Mineraldünger in den letzten Jahrzehnten kaum noch genutzt wurde. Dabei bietet der Anbau von normalblättrigen winterharten Wuchstypen im Vergleich zu Sommererbsen Vorteile wie beispielsweise eine Bodenbedeckung über Winter mit Erosionsschutz, eine effektive Beikrautregulierung (Graß 2003) sowie eine hohe N-Fixierleistung (Karpenstein-Machan und Stülpnagel 2000). Moderne Sorten aus Frankreich, wo ca. 17.000 ha Wintererbsen angebaut werden, besitzen unter den Anbaubedingungen Deutschlands im Gegensatz zu den alten normalblättrigen Wintererbsensorten und -herkünften nur eine ungenügende Winterhärte (Urbatzka et al. 2005). |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2006 |
URL: http://orgprints.org/15596/1/urbatzka%2Detal%2D2006%2DTagungsbeitragTGP06.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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| 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; 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; 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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| Urbatzka, Peer; Demmel, Markus; Jobst, Florian. |
| Successful mechanical weed control is a crucial aspect in organic soybean production. Six weed control techniques (spring tine harrow, inter row hoe with duckfoot sweeps, separately used or in combinations, inter row hoe with additional tools: finger weeder, torsion weeder, ridging wings) were evaluated concerning the effects on weed ground cover and on grain yield. Soy bean plant stands have been established with two different row widths using different types of seeders (12.5 cm with seed drill for harrowing variant and 50 cm with single seed drill for hoeing variants). The field trials were conducted at three sites in four years (2011-2014). At harvest, the weed ground cover in the harrowing variant was higher than in the hoeing variants. In the four... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/31920/1/Untersuchung%20verschiedener%20Techniken%20zur.pdf |
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| Castell, Adelheid; Heiles, Eberhard; Salzeder, Georg; Schmidt, Martin; Beck, Robert; Schätzl, Robert; Schneider, Regina; Urbatzka, Peer. |
| Gerade im viehlosen ökologischen Landbau ist die Fruchtfolge eine der wichtigsten Einflussgrößen, die den pflanzenbaulichen Erfolg bestimmen. Als Stickstoffquelle stehen neben Kleegras auch vermarktungsfähige Leguminosen wie Soja zur Verfügung. Zwei der Fruchtfolgen des Dauerfruchtfolgeversuchs an zwei Standorten der Landesanstalt für Landwirtschaft lassen einen Vergleich zwischen Soja und einjährigem Kleegras in ihrer Wirkung auf die Nachfrüchte Winterweizen und Sommergerste zu. Die Erträge und auch die Qualitäten sind nach Soja signifikant niedriger als nach Kleegras, was die geringere Vorfruchtwirkung von Soja bestätigt. Betrachtet man dagegen die durchschnittlichen Fruchtfolgeerträge in Getreideeinheiten pro Jahr, liegen diese in beiden Fruchtfolgen... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions. |
| Ano: 2014 |
URL: http://orgprints.org/27355/1/Castell-et-al_2014_Fruchtfolgewirkung%20von%20Kleegras%20mit%20Mulchnutzung%20und%20Soja.pdf |
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| Urbatzka, Peer; Rehm, Anna; Salzeder, Georg; Wiesinger, Klaus. |
| The productivity of seven soybean cultivars was examined at two experimental farms in Upper Bavaria during three growing seasons. Highest grain and crude protein yields were determined for the cultivar Merlin (maturity group 000), whereas other varieties of the same maturity group and the high protein cultivars Primus and Lotus obtained considerably lower yields. Harvest date for soybeans of maturity group 000 was usually in the mid of September. In five of six environments 000 cultivars harvested in average 16 days earlier than varieties of lower maturity groups. Expectably highest crude protein contents were analysed for Lotus and Primus. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2011 |
URL: http://orgprints.org/17394/3/Urbatzka_17394.pdf |
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| Registros recuperados: 71 | |
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