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| Registros recuperados: 3.823 | |
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| Kühne, Stefan; Friedrich, Britta. |
| Zum Themenkreis „Pflanzenschutz im Ökologischen Landbau – Probleme und Lösungsansätze“ führt das JKI seit 1998 regelmäßig spezielle Fachgespräche durch. Ziel ist es, umfassende Informationen zum Pflanzenschutz anzubieten, geeignete Verfahren des Pflanzenschutzes vorzustellen und die Entwicklung von Mitteln und Methoden für den Ökologischen Landbau zu fördern. Das 14. Fachgespräch wurde vom Institut für Strategien und Folgenabschätzung im Pflanzenschutz organisiert und ging um die Anwendung von Phosphonaten, insbesondere im Ökologischen Landbau. Phosphonate (Salze der Phosphonsäure) sind in der Natur weit verbreitete Stoffe und kommen in vielen Organismen natürlich vor. In Deutschland und Österreich sind sie in Pflanzenstärkungsmitteln enthalten und können... |
| Tipo: Proceedings |
Palavras-chave: Fruit and berries Crop health; Quality; Protection Viticulture Root crops. |
| Ano: 2010 |
URL: http://orgprints.org/18618/1/kuehne_2010_fachgespr%2Dpflanzensch_phosphonate.pdf |
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| Kreuzwieser, Andreas; Kelderer, Markus. |
| Organic apple production is of increasing commercial importance throughout Europe, but especially in South Tyrol where about 25% of the whole European organic apple crop is produced. In organic apple production, producers face the challenge of choosing varieties that are both in demand and also resistant to the main pests and diseases. Every now and then, the question arises, if yields, losses and profitability are different in integrated and organic orchards and in how great are the differences between single apple varieties. In 1999 the Laimburg Research Centre started a field trial to observe the effects of different cultivation methods on 18 apple varieties in a randomised block design. In the first four years of production, significant... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2004 |
URL: http://orgprints.org/14546/1/43_Kelderer_227_234.pdf |
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| Papp, Orsolya; Kolláth, Péter; Laszlo, Gyula; Drexler, Dora. |
| A biotermesztésben a cseresznyelégy elleni védekezés komoly kihívást jelent a gazdálkodók számára, mivel e kártevő ellen jelenleg nem áll rendelkezésre célzott, megbízhatóan hatékony, engedélyezett és az ökológiai gazdálkodásban is alkalmazható növényvédőszer. A termelők a gyakorlatban különféle olajos készítményeket vetnek be a kártevő ellen, a kezelések hatékonysága azonban meglehetősen bizonytalan, ismereteink szerint nem áll rendelkezésre róla hazai tudományos vizsgálat. Az olajos készítmények további problémája, hogy a vegetációs időszakban alkalmazva gyakran fitotoxikus hatásúak, és az olaj okozta stressz rontja a növények kondícióját. A jó minőségű, exportálható ökológiai cseresznyetermés előállításához ezért további megoldások felderítésére van... |
| Tipo: Report |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2013 |
URL: http://orgprints.org/25297/1/kutatas_2012_web.pdf |
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| Jamar, Laurent; Lefrancq, Bruno; Fassotte, Christianne; Lateur, Marc. |
| In a field experiment conducted over two growing seasons, the effectiveness and phytotoxicity of inorganic fungicides such as sulphur, lime sulphur, copper, silicon and Armicarb (a new formulation of potassium bicarbonate) was compared with water for the control of primary apple scab infections in Belgium on high, medium and low scab-susceptible cultivars (cvs. ‘Pinova’, ‘Pirouette’ and ‘Reinette des Capucins’, respectively). In order to drastically reduce the amount of fungicide applied in the orchard, two approaches were used: (i) a strategy involving spraying during the infection process, just before conditions for infection had been fulfilled according to the RIMpro software warning system; and (ii) a tunnel sprayer machine for treatment applications.... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2008 |
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| Amorim, Míria de. |
| Trata-se de um estudo epidemiológico descritivo, que avalia a prevalência de sinais e sintomas de 39 profissionais - Engenheiros Agrônomos e Técnicos agrícolas da Região Serrana do Estado do Rio de Janeiro -, através da aplicação de um questionário de dados ocupacionais e de condições de vida, bem como das avaliações clínica e neurológica, seguidas de exames laboratoriais, visando estabelecer o possível nexo entre a exposição ocupacional e os sintomas encontrados nos trabalhadores expostos da população em estudo. Os indivíduos integrantes do estudo têm entre 19 e 56 anos, com predominância do sexo masculino (95%), residentes nos Municípios de Teresópolis, Nova Friburgo, Bom Jardim, Cordeiro, Sumidouro, São Sebastião do Alto, Santa Maria Madalena, Cantagalo... |
| Tipo: Thesis |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2003 |
URL: http://orgprints.org/12890/7/efeitos_agrotoxicos_dissertacao_ufrj.pdf |
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| Błaszkowski, Janusz; Kozłowska, Anna; Crossay, Thomas; Symanczik, Sarah; Al-Yahya'ei, Mohamed N.. |
| A new arbuscular mycorrhizal, Paraglomus-like, fungal species (Glomeromycotina) was found and propagated in single-species cultures established from spores coming from Oman, Greece, Tunisia, and New Caledonia. The hyaline spores of the fungus are small, 17–67 μm diam. when globose. Their spore wall consists of an evanescent, 1.0–2.3 μm thick, short-lived outer layer and a laminate, smooth, 3.8–7.3 μm thick inner layer, of which none shows amyloid or dextrinoid reaction in Melzer's reagent. Mycorrhizal structures (arbuscules and hyphae without vesicles) of the fungus stained slightly in Trypan blue, thus like those of the formerly described Paraglomus spp., in which the histochemical feature has been recognized. However, in the phylogenies gained from... |
| Tipo: Journal paper |
Palavras-chave: Soil Crop health; Quality; Protection. |
| Ano: 2017 |
URL: http://orgprints.org/33350/1/Blaszkovski-etal-2017_NovaHedwigia_Vol105_Issue3-4_pp397-410.pdf |
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| Symanczik, Sarah; Al-Yahya'ei, Mohamed N.; Kozłowska, Anna; Ryszka, Przemysław; Błaszkowski, Janusz. |
| Phylogenetic analyses of sequences of the SSU–ITS–LSU nrDNA segment and the RPB1 gene showed that the arbuscular mycorrhizal fungus originally described as Diversispora omaniana does not belong to the genus Diversispora, but represents a separate clade at the rank of genus in the family Diversisporaceae of the order Diversisporales. The closest natural relatives of the fungus proved to be species of the genera Corymbiglomus and Redeckera. Consequently, the new genus was named Desertispora, and Di. omaniana was renamed De. omaniana comb. nov. In addition, the morphological and histochemical features of spores and mycorrhizal structures of a new Diversispora sp., Di. sabulosa, were described and the closest relatives of the species were determined based on... |
| Tipo: Journal paper |
Palavras-chave: Soil Crop health; Quality; Protection. |
| Ano: 2018 |
URL: http://orgprints.org/33351/1/Symanczik-etal-2017_MyologicalProgress_Vol17_Issue4_pp437-449.pdf |
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| Delbac, L; Constant, N; Laveau, E; Thiéry, D; Smits, N; Roudet, J; Mérot, A; Wéry, J; Fermaud, M. |
| An original and integrative evaluation indicator has been developed to quantify the cumulated damage from major pests and diseases affecting grape bunches: downy mildew, powdery mildew, gray mould and tortricid moths. It made it possible to estimate the associated crop losses and to relate them to the plant protection strategy in different modes of production (organic farming, in-transition, conventional). Thus, overall plant losses were higher in 2012 than in 2011. The in-transition growers’ strategy, with reduced copper doses but increased numbers of sprays, led to a 20% increase in average severity on bunches (essentially due to Downy mildew). The more pragmatic approach of experienced organic growers and conventional ones (higher doses and fewer... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2013 |
URL: http://orgprints.org/26240/1/Delbac_2013_CIAG_Vol32.pdf |
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| Registros recuperados: 3.823 | |
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