Determine optimal mineral nutrition and soil management practices for cold climate cultivars. The goal of this research was to determine the relationship between soil characteristics, leaf petiole and blade nutrient contents, and fruit yield and juice characteristics of Frontenac, La Crescent, and Marquette, and to determine the optimal nutrient conditions to maximize fruit yield and quality. Sixteen study sites were located across five states (IA, MN, ND, NY, and SD).
Grapevine nutrition and juice quality. PH, TA, and YAN concentration of juice from cold-hardy grape varieties may be influenced by site selection (through soil texture and concentrations of K and organic matter) and nutrient management. However, no soil or tissue characteristics were related to juice sugar concentration.
Carl Rosen and James Crants
Webinars
- Vine Nutrition Carl Rosen and Paul Domoto PDF of slides
Articles
- Managing Grapevine Nutrition in Cold-Climate Vineyards By Carl Rosen and Jim Crants, University of Minnesota Northern Grapes News Vol 5 Issue 3 August 2016. Pgs. 10-13.