Eastern Washington Wine Grape Systems LTARE Site

a map with the location of the Prosser LTARE.

Key Objective

Evaluate and identify the influence of vineyard management practices on soil health and its impact on grape and wine quality

Cropping System and Region

Eastern Washington Wine Grape Systems

Climate and Soil Type

Annual high temperature: 65 F

Annual low temperature: 42 F

Average annual precipitation: 9 in

Primary soil type: Warden silt loam

Location

Established

2023

Area

Four acres with five primary treatments

Leaders

Devin Rippner - Soil Scientist, USDA-ARS

Liz Gillispie - Vineyard Manager, WSU

Troy Peters - Extension Irrigation Specialist, WSU

Michelle Moyer - Viticulture Extension Specialist, WSU

Markus Keller- Professor of Viticulture, WSU

Investigating cover cropping and organic matter additions

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