Terroir 2016 banner
IVES 9 IVES Conference Series 9 Regenerative agricultural winegrowing systems play a role in refining the expression of terroir in the pacific coast region of United States and Canada

Regenerative agricultural winegrowing systems play a role in refining the expression of terroir in the pacific coast region of United States and Canada

Abstract

By definition, Regenerative Agricultural Systems seek to promote soil and plant health by using photosynthesis for the removal and retention of atmospheric carbon dioxide into stable soil carbon. Documented additional benefits include improved water infiltration and storage in the soil;reduced soil erosion; improved water quality in agricultural watersheds; an increase in the number and biodiversity of soil organisms; the reduction of petrochemical inputs and elimination of substances that disrupt soil biota. Many winegrowers embracing these practices are doing so as a way to personally address climate change and to improve the resilience of their vineyards to water stress.

Many winegrowers committed to the concept of Sustainable Viticulture utilize management practices that are consistent with Regenerative Agriculture. To become certified, Organic and Biodynamic vineyard farming systems are required to use Regenerative Agricultural practices. These include the use cover crops, composts and naturally occurring minerals and processed animal and plant byproducts for fertilizers to create healthy rooting environments and plant nutrition for vines. Irrigation strategies (if irrigation is needed) promote vine balance and appropriate yields for optimum wine quality. Integrated pest management is used, with the goal of enhancing a diverse self-regulating population of insect and mitepredators and parasitoids to control vineyard arthropod pests. Disease management relies both on naturally occurring fungicides and cultural practicesto minimize disease incidence and severity. Weed control is done both with grazing animals and under the vine cultivation equipment. The immediate goal of these farming systems is to create wines that are of the highest quality and expressive of the terroir of the vineyard site. Creating habitat that supports biodiversity of pollinators, vertebrates and other beneficial organisms is also important for many vineyards, especially thosethat are farmed biodynamically. There may be additional benefits of creating unique wines that fit specific market niches, and a vineyard environment that is always safe from pesticide exposure to work and live in for the owner and the employees.

In this presentation, metrics for soil health; farming practices including disease and pest management; and vineyard design and organization are discussed for both organic and biodynamic winegrowing in the west coast of the United States and Canada (San Diego, California to the Okanagan Valley of British Columbia and points in between).

DOI:

Publication date: June 23, 2020

Issue: Terroir 2016

Type: Article

Authors

Glenn McGourty

UCCE-Mendocino County, 890 N. Bush Street, Ukiah, California, USA

Contact the author

Tags

IVES Conference Series | Terroir 2016

Citation

Related articles…

Are biochemical markers the key to predicting wine aroma balance?

Wine aroma quality is a complex interplay of factors like terroir, vinification techniques, that modulate aroma compound composition.

Vintel: a single decision support system for irrigation, fertilization and disease management of grapevine

Vine growers face an increasing number of decisions, both tactical and strategic, in a context where available data and constraints are on the rise, such as resources, societal, environmental, climatic, and economic factors. This has led to a growing supply of decision support systems (DSS) and softwares to manage vineyards. Facing this new complexity, growers must now consider several options: giving up the use of DSS, using systems that are compatible with each other but may limit their options, or using a single system that may be too complex to use effectively. In this context, itk has expanded its Vintel® tool, which was originally designed for grapevine water status management (irrigation, inter-row, cover-crop, etc.), to include fertilization and disease management.

Eléments importants d’une méthodologie de caractérisation des facteurs naturels du terroir, en relation avec la réponse de la vigne à travers le vin

The French viticultural appellation areas are the result of an empirical, historical and evolutionary selection which, generally, has consecrated a match between natural factors, grape varieties and viti-vinicultural practices. The notion of terroir is the main basis of the Appellation d’Origine Contrôlée in viticulture. It is based on the one hand on privileged natural factors and on the other hand on the know-how of the winegrowers; the whole allowing the production of a wine endowed with an authenticity and a sensory typicity. Wine-growing practices evolve according to progress in viticulture and oenology, while the natural factors of the terroir are much more stable, with the exception of the vintage. They therefore represent a fundamental pillar of the identity of an appellation vineyard.

Blend wines made of Syrah, Marselan and Tannat, had better color and more phenolic diversity than varietal wines

Background: Elaborating red-wines from grape cultivars with different polyphenolic profiles could improve wine color and its phenolic-dependent characteristics

Mousy off-flavor detection: a rapid LCMS/MS method

These days, consumers are interested in food products linked to the environment and the concept of naturalness. They prefer “free” products, such as those with no pesticide residues or no added sulfur dioxide (so2) in wines. In fact, so2 is the most widely used preservative in winemaking, as it has multiple properties at low cost: it is antioxidant, antioxidasic and antimicrobial.