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…

Impact of the ‘Pinot’-family on early ripening in cool climate viticulture varieties

‘Pinot Precoce Noir’ (PPN) is an early ripening clone of ‘Pinot Noir’ (PN). The phenological differentiation is visible by an about two weeks earlier onset of veraison. It was found that the early veraison locus Ver1 on chromosome 16, previously identified in ‘Calardis Musqué’, originated from PPN. A highly correlated SSR marker, namely GF16-Ver1, was developed and tested for its ability to molecularly differentiate between PPN and PN as well as its potential to trace individual descendants.

Effect of Botrytis cinerea and esca on phenolic composition of berries and wines

This study showed that Botrytis cinerea could degrade the phenolic compounds by its enzymatic activity. It led to a diminution of skin’s anthocyanins from 20 % to 50 % and an increase level up to 40 % of individual proanthocyanins, 30 % of the %G and 25% of the %P.

Sorption of aroma compounds by commercial specific yeast derivatives and the influence of polyphenols

Specific inactivated yeast derivatives (SYDs) from S. cerevisiae are obtained through thermal, mechanical, and enzymatic processes and are used to enhance wine quality.

Impact of yeast strain and aging time on the secondary metabolites, macromolecule composition, and sensory attributes of sparkling wines elaborated by the traditional method

The occurrence of aroma and macromolecule constituents in sparkling wines, directly influencing their organoleptic characteristics, is affected by several factors, including the grape cultivar, base-wine particularities, inoculated yeasts, the aging time, and winemaking practices [1].

Effect Of Grape Polysaccharides On The Volatile Composition Of Red Wines

Yeast mannoproteins and derivates are polysaccharides produced from the cell walls of different yeast strains widely used in the winemaking and finning of wines to improve their overall stability and sensory properties.