1. Vineyard Soil Health: What Soil Properties are Most Important?

Washington is the second leading producer of wine grapes (Vitis vinifera) in the US, with over 60,000 acres in vineyards. With such a substantial acreage, it is crucial to know how management practices may affect soil and vine health in wine grape systems. Soil health indicators and threshold values have been extensively studied in commodity crops in the Midwest and the northeastern US, but there is much less information available for specialty crops in the Pacific Northwest.   Soil... M. Mcilquham, D. Griffin-lahue, K. Sarpong, L. Michel