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| Frankenberg, Andrea; Paffrath, Andreas. |
| During the last years damage caused by plant parasitic nematodes in organic field vegetable farming has been observed with increasing attention. A general inquiry was started on farms with nematode problems to collect information about infestation, crop rotation and control strategies. Soil samples from 207 vegetable fields were taken from 55 farms in Germany and the detected nematodes were analysed. Seventeen different genera of plant parasitic nematodes were found. Nematodes of the genus Pratylenchus were found on 90 % of Meloidogyne on 50 % of the analysed fields - these two are the most important genera that damage vegetables. More than half of the infested fields were of sandy soils. Yield reductions of 50 % could be observed on 40 % of the fields... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2005 |
URL: http://orgprints.org/3575/1/3575.pdf |
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| Hallmann, Johannes; Frankenberg, Andrea; Paffrath, Andreas; Schmidt, Harald. |
| In an attempt to evaluate the occurrence and economic importance of plant-parasitic nematodes in organic farming in Germany, a survey was conducted with the main emphasis on vegetable and cereal production systems. For vegetables, the survey included quantification and identification of plant-parasitic nematodes in soil samples and a questionnaire for growers querying production factors and damage levels. For cereals, the survey focused on quantification and identification of plant-parasitic nematodes in soil and plant samples. Overall, Pratylenchus and Tylenchorhynchus were the most prominent nematode genera under both production systems with an incidence of over 90% of the samples. Meloidogyne was detected in 51% of the samples in both systems. Other... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2007 |
URL: http://orgprints.org/15252/1/hallmann%2Detal%2D2007%2DNematology_Vol9_6__869%2D879.pdf |
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| Frankenberg, Andrea; Kern, Nicole; Ruisinger, Marion; Tiede-Arlt, Peter; Kempkens, Karl; Schumacher, Hermann-Josef; Fischinger, Stephanie. |
| Beim der Produktion von Bio Rosen sind besonders im Bereich der Nährstoffversorgung, des Pflanzenschutzes sowie der Behandlung der Schnittrosen mit einem Vorbehandlungsmittel Lösungen gefordert.Versuche und Praxiserfahrungen auf einem Schnittblumenbetrieb im Rahmen des Projektes "Entwicklung und Optimierung des Zierpflanzenbaus zu nachhaltiger und ökologischer Produktion im Rahmen eines Netzwerkes von Leitbetrieben und Versuchsanstellern" haben gezeigt, dass Bio Schnittrosenanbau in Deutschland durchaus möglich. Die Ergebnisse sollen Handlungsempfehlungen ergeben die das Anbausystem stabilisieren und somit die Voraussetzungen zur Belieferung unterschiedlicher Großhandelssysteme möglich machen. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring Crop husbandry Crop health; Quality; Protection Ornamentals; Flower bulbs and tree nurseries Post harvest management and techniques. |
| Ano: 2015 |
URL: http://orgprints.org/27163/1/27163_frankenberg.pdf |
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| Kempkens, Karl; Paffrath, Andreas; Frankenberg, Andrea. |
| Im Ökologischen Gemüsebau wurden in den letzten Jahren vermehrt Schäden durch pflanzenparasitäre Nematoden beobachtet. Mögliche Gründe für die zunehmenden Probleme mit Nematoden liegen in der Fruchtfolgegestaltung. Ein hoher Anteil an Gemüsekulturen, Leguminosen und Untersaaten in der Fruchtfolge sowie ein hoher Beikrautbesatz sorgen für ein breites Wirtspflanzenspekrum für einige der stark schädigenden Nematodenarten. Regulierungsmöglichkeiten bestehen z.B. durch Eingliederung von Feind-, Fang und Nichtwirtspflanzen und resistenten Zwischenfrüchten in die Fruchtfolge. Weiterhin spielen Maßnamen im Anbaumanagement wie organische Düngung, Kalkung, Bodenbearbeitung, Bra-che, Saatzeitpunkte sowie physikalische und biologische Bekämpfung (Einsatz von... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection Vegetables. |
| Ano: 2004 |
URL: http://orgprints.org/6115/1/6115%2D02OE478%2Dlk%2Dnrw%2Dkempkens%2D2004%2Dnematoden.pdf |
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| Koch, Robert; Emmel, M.; Lohr, D.; Frankenberg, Andrea; Degen, B.; Meinken, E.; Haas, HP.; Fischinger, Stephanie. |
| Matching nitrogen demand of plants and N release of organic fertilizers with respect to amount and timing is one key for successful cultivation of organic ornamentals. Thereby for plants with a low to moderate N demand growers can add the fertilizer as complete preplant application (CPA). For plants with a high N demand splitting fertilization in a reduced preplant application combined with an additional fertigation (RPA+F) is preferable. Aim of the current research was the investigation of N release of organic fertilizers in incubation experiments. Results of the incubation experiment were linked to a pot trial with pelargonium. Incubation experiments reveal that most fertilizers release about 40 to 50 % of total N and most nitrogen is released within... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Composting and manuring; Nutrient turnover; Air and water emissions. |
| Ano: 2017 |
URL: http://orgprints.org/31877/1/Organische%20D%C3%BCnger%20in%20Topfkulturen%20auf%20dem%20Pr%C3%BCfstand%20-.pdf |
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