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
3 Castello di Gabbiano
4 P.Ri.Ma. Forma – Progettazione, Ricerca e Management per la Formazione

Contact the author

Tags

Enoforum 2021 | IVES Conference Series

Citation

Related articles…

Molecularly imprinted polymers: an innovative strategy for harvesting polyphenoles from grape seed extracts

Multiple sclerosis (MS) is a multifactorial autoimmune disease associating demyelination and axonal degeneration developing in young adults and affecting 2–3 million people worldwide. Plant polyphenols endowed with many therapeutic benefits associated with anti-inflammatory and antioxidant properties represent highly interesting new potential therapeutic strategies. We recently showed the safety and high efficiency of grape seed extract (GSE), a complex mixture of polyphenolics compounds comprising notably flavonoids and proanthocyanidins, in an experimental autoimmune encephalomyelitis (EAE) mouse model of MS.
Read More

IMPACT OF MUST NITROGEN DEFICIENCY ON WHITE WINE COMPOSITION DEPENDING ON GRAPE VARIETY

Nitrogen (N) nutrition of the vineyard strongly influences the must and the wine compositions. Several chemical markers present in wine (i.e., proline, succinic acid, higher alcohols and phenolic compounds) have been proposed for the cultivar Chasselas, as indicators of N deficiency in the grape must at harvest [1]. Grape genetics potentially influences the impact of N deficiency on grape composition, as well as on the concentration of potential indicators in the wine. The goal of this study was to evaluate if the che- mical markers found in Chasselas wine can be extended for other white wines to indicate N deficiency in the grape must.

Read More

Baccus: from framework to web platform for self-assessment of wine sustainability

Sustainability is becoming an increasingly present challenge, whether due to an increase in the level of perception and demand from consumers and stakeholders or the rise of events linked to climate change, which directly impacts agricultural-based sectors such as the vine and wine industry.

Read More

Adaptation et expression de l’encépagement et mode de conduite en différents terroirs de la région du Douro/vin de Porto

Ce travail a pour objet l’analyse des résultats agronomiques obtenus sur trois unités expérimentales du Centre d’Etudes Vitivinicoles du Douro (CEVDouro), localisées dans des écosystèmes différenciés de la Région du Douro/Vin de Porto, à différentes altitudes (130, 330 et 520 mètres) et à des expositions diversifiées (SE, N et W).

Read More

Viti-Tunnel, an automatically removable protection against diseases, frost and hail, a way to drastically reduce the use of pesticides

Viti-tunnel®, une innovation imaginée pour répondre à deux des objectifs majeurs des viticulteurs : 1.la sécurisation de la vendange : viti-tunnel® permet de protéger les vignobles des pertes de récolte dues aux maladies, au gel et à la grêle. 2.la réduction des pesticides : viti-tunnel® permet de réduire de plus de 90 %, le recours aux produits phytosanitaires et aux passages de pulvérisateurs, et ce, en toute sécurité pour la vendange. Un dispositif automatisé pour protéger les vignes viti-tunnel® est un dispositif de mise à l’abri automatique des rangs de vigne pendant les pluies et les évènements climatiques extrêmes.

Read More