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Entwicklung eines zeitlichen und räumlichen Entscheidungshilfesystems gegen den Erbsenwickler (Cydia nigricana, Fabricius) Organic Eprints
Schieler, M.; Riemer, N.; Racca, P.; Saucke, Helmut; Clemenz, C.; Schwabe, K.; Müller, U.; Hammer-Weis, M.; Kleinhenz, Benno.
Pea moths (Cydia nigricana) can cause severe damages in pea crops (Pisum sativum). Larvae feed on the seeds in the pods and contaminate them with feces. In the cultivation of organic green peas 0.5 % damaged seeds lead to the denial of whole pea fields (Schulz & Saucke 2005). There can be a yield loss in forage peas and a loss of quality of seeds for propagation. Within the framework of the project to improve the spatial and temporal cultivation strategy of peas to get less damage due to pea moths, is the intention. For a better spatial and temporal cultivation strategy, the DSS creates a map with areas with an infestation risk factor. The higher the risk factor, the earlier the new fields should be cultivated. Therefore, the first part of the DSS...
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection.
Ano: 2017 URL: http://orgprints.org/31903/1/Entwicklung%20eines%20zeitlichen%20und%20r%C3%A4umlichen.pdf
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Erbsenwickler (Cydia nigricana) in Gemüse- und Körnererbsen: Grundlagen zur Befallsprognose und Schadensprävention Organic Eprints
Riemer, Natalia; Schieler, M.; Kleinhenz, Benno; Racca, P.; Hammer-Weis, M.; Clemenz, C.; Schwabe, K.; Müller, U.; Saucke, Helmut.
Spatio-temporal distribution, combined with aspects of insect biology and ecology can influence the infestation risk of the key pea pest Cydia nigricana in vegetable- and field peas. The proximity of pea fields of the previous cultivation period highly affects the infestation potential of the moth. The presented study aims to monitor the infestation development in three different regions in Germany (North Hesse, Saxony, Saxony-Anhalt) in four consecutive years and to relate empirical pest incidences to key factors as crop abundance, the distance to previous pea fields, the pea plant phenology and climatic conditions. In a next step, these data will form the basis for the elaboration of a computer-aided decision support system, which assists farmers in...
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds Vegetables Crop health; Quality; Protection.
Ano: 2017 URL: http://orgprints.org/31904/1/Erbsenwickler%20%28Cydia%20nigricana%29%20in%20Gem%C3%BCse-%20und.pdf
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Erweiterung des Entscheidungshilfesystems Öko-SIMPHYT zur Reduktion der Kupferapplikationen gegen Phytophthora infestans im ökologischen Kartoffelanbau Organic Eprints
Bruns, C.; Schulz, H.; Tebbe, C.; Racca, P.; Werren, Dagmar; Finckh, Maria R.; Kleinhenz, Benno.
An improved Decisions Support System (DSS) for the control of Phytopththora infestans in organic potatoes was developed in the frame of the CoFree Project. This work included as primary steps the development of an ontogenetic model (Simonto) based on the BBCH scale of potatoes, and its validation. Additionally, the soil mineral nitrogen dynamics in organic potatoes and nitrogen contents of tuber and leaves were modelled and integrated in the existing DSS Öko-SIMPHYT (www.isip.de). The DSS comprises a correction tool at BBCH 60 for the user to improve the quality of the prediction of potato growth and a termination of copper spraying when potential yield of 90 % is reached. This development was based on intensive data mining in existing data sets from...
Tipo: Conference paper, poster, etc. Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2017 URL: http://orgprints.org/31892/1/Erweiterung%20des%20Entscheidungshilfesystems%20%C3%96ko-SIMPHYT.pdf
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