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Copper bioavailability and leaching in conventional and organic viticulture under environmental stress
Erika Jež, Elisa Pellegrini, Marco Contin, 2023, izvirni znanstveni članek

Opis: The continuous use of Cu-based fungicides in viticulture has caused Cu accumulation in soils, which represents a major environmental and toxicological concern. The purpose of this study was to verify whether the organic management would be more resilient to temperature and moisture stresses in comparison to conventional practices. Two organic and two conventional vineyard soils, contrasting in pH, were exposed for six months to temperature stress (29 °C), moisture stress (10% water holding capacity—WHC), and combined stresses (29 °C—10% WHC). Main soil properties, Cu speciation, bioavailability, and leaching were monitored before and after 6 months’ incubation. Results confirm that the increase of temperature caused a decrease in both total organic carbon (TOC) and dissolved organic carbon (DOC) (up to 19% and 49%, respectively), a decrease in available ammonium, and an increase in nitrate. Moisture stress tends to mitigate some of these changes. Despite that, changes of Cu bioavailability and leaching were limited and rarely significant. Moreover, no regular trends between conventional and organic management could be observed. Changes in soil pH and total N (TN) appeared as the most influencing properties to regulate Cu behavior in vineyard soils. Calcareous soils were more resistant to environmental stresses compared to acid soils, regardless of the type of management (conventional or organic).
Ključne besede: soil copper, climate changes, soil organic matter, organic viticulture, BCR speciation
Objavljeno v RUNG: 22.02.2023; Ogledov: 1456; Prenosov: 20
.pdf Celotno besedilo (2,57 MB)
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e-Klet
Guillaume Antalick, Marko Lesica, Melita Sternad Lemut, Lorena Butinar, Erika Jež, Branka Mozetič Vodopivec, 2020, drugo učno gradivo

Ključne besede: interaktivno učno gradivo, pridelava vina, posamezne faze pridelave, sveže belo vino
Objavljeno v RUNG: 23.02.2021; Ogledov: 2527; Prenosov: 0
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