Dr. Joan Davenport, who has long championed the need for grape nutrition guidelines specific to the Pacific Northwest, is in the process of publishing an Extension bulletin with the new recommendations. The long- awaited nutritional standards developed specifically for Pacific Northwest juice and wine grapes are in the process of being published, following ­several years of work by Washington State University’s Dr. Joan Davenport. The WSU soil scientist has conducted research projects dating back to 1999 to evaluate nutrient concentrations in both juice and wine grape leaf tissues in her efforts to develop meaningful guidelines for Northwest grape growers. The […]