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| Registros recuperados: 36 | |
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| Kolbe, Dr. Hartmut. |
| Measurements in the literature of grain yield, harvest index, N2 fixation, N content, N surplus, Nmin content of the soil, etc., were compiled. Correlation analyses were then carried out with Vicia faba L. and Pisum sativum L. data sets from conventional and organic field trials per-formed in Central European. Grain yield or N output, Nmin content before sowing, and the N harvest index proved to be the most effective driving variables for developing a calculation model for plant nitrogen fixation and the surplus amount. All the variables mentioned are listed in farmers’ plot card indices, with the exception of the N harvest index, an essential variable which is not detectible by the farmer. Therefore, the N harvest index was indirectly determined through... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2005 |
URL: http://orgprints.org/6105/1/PosterGrainLegumes1.pdf |
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| Raupp, J.; Oltmanns, M.; Jarosch, A.-M.; Neumann, E.. |
| We investigated wheat yield and arbuscular mycorrhiza (AM) fungal root colonization and spore formation in response to fertilization, either with high or low amounts of mineral fertilizer or cattle manure since 27 years. At low rates there was no difference in yield between minerally and organically fertilized plants. High rates of mineral fertilizers reduced yields. Reasons can be that either the high nitrogen availability was less effectively used for grain development of minerally fertilized plants, or the mineral fertilization rendered the plants more sensitive towards drought stress. The extent of AM fungal root colonization appeared to depend on the plant P nutritional status rather than the type of fertilizer applied. The lower fertilization... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2009 |
URL: http://orgprints.org/14400/1/Raupp_14400.pdf |
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| Gunst, Lucie; Krebs, Heinz; Dubois, D.; Forrer, H.-R.. |
| In the DOK long-term field trial in Switzerland comparing bio-dynamic, bio-organic, and conventional farming systems, the occurrence of Fusarium species and Microdochium nivale on grains of wheat was investigated from 1997 to 2003. Although no differences between the farming systems were found, the previous crop, the fertilisation level, and the year significantly influenced the disease incidence. In 2003, the effect of the pre-crops potatoes versus silage-maize on fusaria was compared. As expected, the incidence of fusaria was significantly higher after maize compared with potatoes. However, the main responsible species was not F. graminearum but F. poae. This species is known for the production of hazardous toxins. A greater input of fertiliser resulted... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2005 |
URL: http://orgprints.org/3781/1/3781.pdf |
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| Das hier beschriebene Projekt ist Teil eines Verbundvorhabens, das folgende Teilprojekte umfasst: FKZ 11OE111, FKZ 11OE110. Alle in Organic Eprints archivierten Projektbeschreibungen und Veröffentlichungen zu diesem Verbundvorhaben finden Sie unter folgendem Link: http://orgprints.org/cgi/saved_search?savedsearchid=1475. Ziel des Vorhabens ist es, die Wirkung verschiedener Verfahren der Schwefeldüngung auf die Ertragsleistung, Qualität und den Vorfruchtwert der drei im ökologischen Landbau wichtigsten Körnerleguminosenarten – Erbse, Ackerbohne und Schmalblättrige Lupine in Reinsaat sowie Erbse-Gerste-Gemenge– zu ermitteln. Die Verfahren der Schwefeldüngung werden auf insgesamt sechs hinsichtlich Boden, Klima und langjähriger Bewirtschaftung... |
| Tipo: Project description |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2024 |
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| Grüter, Roman; Costerousse, Benjamin; Mayer, Jochen; Mäder, Paul; Thonar, Cécile; Frossard, Emmanuel; Schulin, Rainer; Tandy, Susan. |
| Wheat is a staple food crop and a major source of both the essential micronutrient zinc (Zn) and the toxic heavy metal cadmium (Cd) for humans. Since Zn and Cd are chemically similar, increasing Zn concentrations in wheat grains (biofortification), while preventing Cd accumulation, is an agronomic challenge. We used two Swiss agricultural long-term field trials, the “Dynamic-Organic-Conventional System Comparison Trial” (DOK) and the “Zurich Organic Fertilization Experiment” (ZOFE), to investigate the impact of long-term organic, mineral and combined fertilizer inputs on total and phytoavailable concentrations of soil Zn and Cd and their accumulation in winter wheat (Triticum aestivum L.). “Diffusive gradients in thin films” (DGT) and... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2019 |
URL: http://orgprints.org/36388/1/grueter-etal-2019-SciTotalEnv-Vol669-p608-620.pdf |
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| Böhm, Herwart. |
| At the Experimental Farm of the Thünen Institute of Organic Farming the effect of sulphur fertilisation in form of MgSO4 and CaSO4 of a red clover-grass mixture was tested in the years 2013 - 2015. At the beginning of the vegetation period clover-grass plots were fertilised in the first and second year of usage with 30 and 60 kg S ha-1 and were compared to unfertilised plots. The fertilisation resulted in significantly higher fresh weight and - with one exception of the second year usage in 2013 higher dry matter yields. The forage quality was significantly increased by sulphur fertilisation. Due to higher sulphur contents in the fertilised plots the N/S-ratios showed values below the threshold of 15 for an adequate sulphur supply. The N-withdrawals... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2017 |
URL: http://orgprints.org/31871/1/Die%20Wirkung%20einer%20Schwefeld%C3%BCngung%20auf%20Ertrag%20und.pdf |
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| Durchgeführt werden Feldversuche auf zwei Praxisbetrieben mit Kohl und Körnermais nach Zottelwicken-Reinbestand bzw. Wickroggen. Im gleichen Zeitraum wird auf dem Versuchsbetrieb Wiesengut ein faktorieller Feldversuch durchgeführt. Hierbei erfolgt eine Untersuchung der Vorfruchtwirkung von Zwischenfrüchten zu Silomais. Quantifiziert werden jeweils in den Winter-Zwischenfrucht-Gemengen und Reinsaaten: Sproßertrag, Ertragsbildung und N-Aufnahme; Futterqualität und Siliereignung; symbiotische Stickstoff-Fixierungsleistung; Nitratgehalt im Boden und Nitrataustrag über den Winter. In den Nachfrüchten Kohl, Körner- und Silomais werden die N-Mineralisierung im Boden unter den Nachfrüchten, die Vorfruchtfwirkung der Winterzwischenfrüchte und die Produktqualität... |
| Tipo: Project description |
Palavras-chave: Pasture and forage crops Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2024 |
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| Westphal, D.; Loges, R.; Taube, F.. |
| In organic farming, N supply to non-legumes often does not meet the N-demand of the respective crops, which then results in low yields and unsatisfactory product quality. The present study analysed the potential of a site specific application of organic ferti-lizers to improve N-efficiency of organic winter wheat production. Under a constant management, strong yield variations were caused by different soil types. On average of two experimental years (2005/06), liquid manure application of 135 kg N ha-1 in-creased the crop yields by 50%.The crude protein content was significantly improved as well. Interactions of soil type and fertilisation on yield and quality parameters were absent, except for a significantly higher utilisation of N from liquid manure on... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2007 |
URL: http://orgprints.org/9727/1/9727_Westphal_Poster.pdf |
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| Witten, Stephanie; Aulrich, Karen; Böhm, Herwart. |
| Grain legumes, like blue lupins, are important protein feedstuffs especially in organic farming. Their content of crude protein (CP) and essential amino acids (EAA) is of great interest. The sulfur-containing amino acids (SAA) methionine and cysteine are often limiting in common diets primarily for poultry. Therefore, we investigated, whether a sulfur fertilization of blue lupins could enhance their contents of SAA and if it has other effects regarding crop yield, CP and further EAA. Two branched (Boregine, Probor) and two determinated (Boruta, Sonet) blue lupin varieties were cultivated at an experimental station in Northern Germany in the years 2012, 2013, and 2015. The varieties were either grown with or without S fertilization (40 kg S ha-1; MgSO4).... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2016 |
URL: http://orgprints.org/33383/1/Abstracts_final.pdf |
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| Pötzsch, Frank; Lux, Guido; Schmidtke, Knut. |
| Um genaueres über die Schwefel (S) - Versorgung der Ackerbohne (Vicia faba L.) unter Feldbedingungen zu erfahren, wurden in den Jahren 2012 bis 2014 an mehreren Standorten in Deutschland Feldversuche auf langfristig (mehr als 10 Jahre) ökologisch bewirtschafteten Ackerflächen durchgeführt. In diesen Feldversuchen wurden die Effekte der S-haltigen Düngemittel Kieserit (MgSO4), Gips (CaSO4), Bittersalz (MgSO4 x 7 H2O) und elementarem Schwefel auf die S-Akkumulation, den Ertrag, die Ertragsstruktur und die Stickstoff (N) Akkumulation der Ackerbohne untersucht.Zudem wurde die scheinbare Ausnutzung des gedüngten S geprüft. Unter den gegebenen Umweltbedingungen hatte die S-Düngung der Ackerbohne keinen Einfluss auf den Kornerträge. Die S-Akkumulation im Spross... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2019 |
URL: http://orgprints.org/36079/1/Beitrag_148_final_a.pdf |
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| Nielebock, Sandra; Matthes, Christoph; Spieß, Hartmut. |
| In der wissenschaftlichen Diskussion über die Wirkung der biologisch-dynamischen Präparate wurde seit geraumer Zeit eine Wiederholung der Versuche auf Reproduzierbarkeit gefordert. Erst 2005 gelang es, im Rahmen einer Diplomarbeit an der Universität Oldenburg entsprechende Experimente durchzuführen (Nielebock 2006). Diese bestanden in der Anlage von drei Triebkraftversuchen mit Weizen bei direkter und indirekter Behandlung mit allen sowie den einzelnen sechs Kompostpräparaten. Versuchsstandort war die IBDF-Nebenstelle auf dem Dottenfelderhof. Untersucht wurde, inwiefern unter künstlich erzeugtem Stress wie Kälte oder Ziegelgrusüberschichtung ein Einfluss der Präparate auf die Keimpflanzenentwicklung und letztlich die Höhe der Triebkraft nachweisbar ist.... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2012 |
URL: http://orgprints.org/28040/1/Forschung_2012-2.pdf |
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| Registros recuperados: 36 | |
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