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…

Molecular characterization of wines nucleophilic potential by ultra-performance liquid chromatography high resolution mass spectrometry

The knowledge about the molecular fraction associated to white wines oxidative stability is still poorly understood.

Immobilization of S. cerevisiae and O. œni for the control of wine fermentation steps

Controlling the speed of alcoholic (AF) and malolactic (MLF) fermentations in wine can be an important challenge for the production of certain short rotation wines for entry-level market segments. Immobilization techniques for Saccharomyces cerevisiae and Œnococcus œni, the microorganisms responsible for these fermentations, are widely studied for industrial applications. Indeed, these processes allow to accumulate biomass and thus to increase cell densities inducing high fermentation velocities. Recent works have shown the performance of MLF carried out with biofilms of O. œni, immobilized on various supports in a rich medium (MRSm: modified MRS broth with malic acid and fructose).

Rootstock effects on Grüner Veltliner ecophysiology in the Kremstal wine region of Austria

Understanding the impact of rootstocks on grapevine water relations is crucial to face climate change maintaining vineyard productivity and sustainability.

Copper reduction strategy for sangiovese in organic viticulture

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.

Genetic variation among wild grapes native to Japan

Domesticated grapes are assumed to have originated in the Middle East. However, a considerable number of species are native in East Asian countries such as China, Korea and Japan as well. Evidence suggests that a total of seven species and eight varieties have been found to be native to Japan. A wide level variation in morphology, genetic and fruit composition exist in wild grape native to Japan.