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Thürig, Barbara; Fließbach, Andreas; Berger, Nicole; Fuchs, Jacques G.; Kraus, Noemy; Mahlberg, Nicole; Nietlispach, Bruno; Tamm, Lucius. |
The aim of this study was to investigate the potentials and limitations in restoring soil suppressiveness in disturbed soils. Soils from three sites in UK and Switzerland (STC, REC, THE) differing in their level of suppressiveness to soil-borne and air-borne diseases were γ-irradiated and this soil matrix was re-inoculated with 1% (w/w) of either parent native soil or native soil from the other sites (‘soil inoculum’). Suppressiveness to air-borne and soil-borne diseases was quantified by means of the host–pathogen systems Lepidium sativum (cress)–Pythium ultimum, an oomycete causing root rot and seedling damping-off, and Arabidopsis thaliana–Hyaloperonospora parasitica, an oomycete causing downy mildew. Soil microbial biomass, activity and community... |
Tipo: Journal paper |
Palavras-chave: Soil biology Crop health; Quality; Protection. |
Ano: 2009 |
URL: http://orgprints.org/17866/1/thuerig-etal-2009-see-front-matter.pdf |
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Schärer, Hansjakob; Mahlberg, Nicole; Tamm, Lucius; Koller, Martin. |
To grow carrots in organic quality for storage is often difficult due to seed- and soilborne diseases. In a series of experiments, seed treatments were evaluated to improve seed health, field stand establishment and yield of carrots under field conditions on farmer’s fields within their production system. In standard germination tests in the laboratory, positive effects of the treatments were observable. However, in subsequent field experiments, none of the tested seed treatments improved crop establishment or yield. These results indicate that the quality of organic carrot seeds is generally sufficient and improvements with farm-made seed treatments are difficult to obtain. Further improvement in organic production of carrots may be achieved by... |
Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation. |
Ano: 2009 |
URL: http://orgprints.org/14439/1/Sch%C3%A4rer_14439.pdf |
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Tamm, Lucius; Thürig, Barbara; Bruns, Christian; Fuchs, Jacques G.; Köpke, Ulrich; Laustela, Matias; Leifert, Carlo; Mahlberg, Nicole; Nietlispach, Bruno; Schmidt, Christoph; Weber, Felix; Fließbach, Andreas. |
The impact of soil type, long-term soil management, and short-term fertility input strategies on the suppressiveness of soils against soil-borne (Ocimum basilicum – Rhizoctonia solani, Lepidium sativum – Pythium ultimum) as well as air-borne (Lycopersicon esculentum – Phytophthora infestans, Arabidopsis thaliana – Hyaloperonospora parasitica) diseases was studied. Soils from field trials established in five European sites with contrasting pedo-climatic conditions were examined. Sites included (i) a long-term management field trial comparing organic and conventional farming systems (DOK-trial, Therwil, Switzerland) (ii) a short-term fertility input field trial comparing mineral and organic matter fertilisation regimes (Bonn (BON), Germany) (iii) two... |
Tipo: Journal paper |
Palavras-chave: Soil biology Crop health; Quality; Protection. |
Ano: 2010 |
URL: http://orgprints.org/17865/1/Tamm-etal-2010-eur-j-plant-pathol.pdf |
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