Enoforum 2021
IVES 9 IVES Conference Series 9 Enoforum Web 9 Enoforum Web Conference 2021 9 Copper reduction strategy for sangiovese in organic viticulture

Copper reduction strategy for sangiovese in organic viticulture

Abstract

Organic viticulture requires copper based treatments for bunch protection even though an intensive employment is no longer admitted because of its low leaching and phytotoxicity in the soil. UE Reg. 1981/2018 set copper employment to 4 kg/ha for year or 28 during 7 years with an absolute level allowed of 6 Kg/ha although those limits were decreased frequently. In order to reduce copper a valid strategy is to monitor vineyard microclimate (wind, temperature, humidity) implementing DSS to maximize treatments effectiveness. We can also stimulate plant natural defenses by supporting substances (Biostimulants, Inductors, Revitalizing molecules) in order to minimize number of treatments. In the Castello of Gabbiano farm (DOCG Chianti Classico, Italy) during 2019 and 2020, an organic management has been compared with the same organic management but with reduced treatments and adding supporting substances to the grapevine, over 3 vineyards with different exposition and slope. No statistical significance (P>0,05) has been found between the two managements inside each vineyard regarding grapes production and quality. Downy mildew Incidence and severity on leaf and bunch were higher in the low copper employment management only in 2020. Data of copper treatments allowed a calculation of 2.7 kg/ha and 4.3 copper employment for organic and low treatments organic management respectively over the two years, producing grapevine with the same quality but with a copper distribution reduction of 37-40% over different exposition and cultivation situations.

DOI:

Publication date: April 23, 2021

Issue: Enoforum 2021

Type: Article

Authors

Petrucci William Antonio1, Ciofini Alice1, Valentini Paolo1, D’Arcangelo Mauro E. M. 1, Storchi Paolo1, Mugnai Laura2, Carella Giuseppe2, Burroni Fabio3, Marco Pierucci4, Perria Rita1

1 CREA – Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria – Centro di ricerca Viticoltura ed Enologia
2 DAGRI – Dipartimento di Scienze e Tecnologie Agrarie, Alimentari Ambientali e Forestali-Università di Agraria di Firenze
Castello di Gabbiano
P.Ri.Ma. Forma – Progettazione, Ricerca e Management per la Formazione

Contact the author

Tags

Enoforum 2021 | IVES Conference Series

Citation

Related articles…

Architecture, microclimate, vine regulation, grape berry and wine quality: how to choose the training system according to the wine type ?

This synthetic presentation deals with : • A description of the variability and the main models of grapevine canopy architecture in the world. • A precision on the model « potential exposed leaf area SFEp », which estimates the potential of net carbon balance of the plant, and shows a regulating effect of high SFEp levels on production decrease.

Optimizing the use of bentonite for better control of haze formation In white and rosé wines

In winemaking, the appearance of turbidity in white and wine is a serious visual defect, which lowers significantly its commercial value. A major cause of the formation of turbidity in wine is attributed to the presence of temperature-sensitive proteins.

Les terroirs : variae causarum figurae

The jurist feels like an intruder when talking about terroirs. He looks at the press and tries to understand. We can read there about the cooking festival of May 30, 1996 which “..highlights products whose quality depends on a region”, that Camembert du pays d’Auge is the only one to be protected, I was thinking of camembert from Normandy, that 80% of Greek feta is made in the Netherlands, I thought it was in Denmark, and that the European Community protects geographical indications of IGP origin, probably a new category replacing the indications protected areas (1). I also learned that distributors are asking for more local products because “they come to confuse the cards in the part engaged with the big brands”. Carrefour has its “Terroirs and drawers”, Prisunic its “Vent d’Ouest”, Intermarché “Les bouquets du terroir”, Monoprix “Les terroirs de France” (2), Promodés and its brand “Reflets de France” for the “Continent” hypermarkets (3). At the same time it is asserted that “The term is a mere common noun. Unprotectable and therefore unprotected” (4).

Report on the work carried out by the zoning group of the O.I.V.

La création officielle du groupe Experts Zonage Vitivinicole à l’O.I.V., qui s’inscrit dans la Commission Viticulture, est récente. Le Professeur Mario FREGONI en assure la présidence depuis 1998, assisté du vice-président et du secrétaire général Mario FALCETTI. Ils ont été confirmés dans leurs fonctions lors des sessions de mars 2001. Actuellement, le groupe d’experts Zonage Vitivinicole de l’O.I.V. se compose de 40 délégués, représentant 18 pays membres. La mise en place de ce groupe a tout d’abord été initiée par l’Instituto Agrario de San Michele (Italie) et l’Unité de Recherches Vigne et Vin du Centre INRA d’Angers (France). Une collaboration entre les chercheurs s’est installée très tôt, dès 1987.

VITIGEOSS Business Service: Task scheduling optimization in vineyards

Agriculture plantations are complex systems whose performance critically depends on the execution of several types of tasks with precise timing and efficiency to respond to different external factors. This is particularly true for orchards like vineyards, which need to be strictly monitored and regulated, as they are sensitive to diverse types of pests, and climate conditions. In these environments, managing and optimally scheduling the available work force and resources is not trivial and is usually done by teams of senior managers based on their experience. In this regard, having a baseline schedule could help them in the decision process and improve their results, in terms of time and resources spent.