Northern Grapes Project March 2015 News You Can Use: Grapevine Nutrition

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News You Can Use

Grapevine Nutrition

Iron chlorosis on grapes.

Photo: Harlene Hatterman-Valenti

As cold-hardy winegrape cultivars are still fairly new, optimal soil and tissue nutrient concentration ranges have not yet been established, and growers are relying on recommendations developed for Vitis vinifera and V. labrusca cultivars grown in more traditional (i.e., warmer) climates. Therefore, one of the goals of the Northern Grapes Project is to obtain baseline soil properties and tissue nutrient concentrations for the cold-hardy hybrids.

Leading this effort are Carl Rosen, a professor in the Department of Soil, Water, and Climate at the University of Minnesota, and his technician James Crants. Researchers are collecting soil and tissue samples in 15 locations spread across Minnesota, Iowa, North Dakota, South Dakota, and New York, which are sent to AgVise Laboratories for analysis. These results are summarized, and are also correlated with yield, vine, and fruit parameters. This research should result in nutrient recommendations that are optimized for the cold-hardy hybrids.

Below are links to three grapevine nutrition resources generated via the Northern Grapes Project:


Vine Nutrition Webinar, by Carl Rosen and Paul Domoto. This webinar covers the basics of vine nutrition.


Link to slides:


Grapevine Nutrition and Juice Quality Research Report, by Carl Rosen and James Crants. This report summarizes the nutrition-related work that has been done in Years 1-3 of the Northern Grapes Project.


Assessing the Nutrient Status of Cold-Hardy Wine Grapes, by Carl Rosen and James Crants. This newsletter article (starts on page 6 of the issue linked below) covers some basics of vine nutrient status and discusses the work being done as part of the Northern Grapes Project.


Northern Grapes Project is funded by the USDA’s Specialty Crops Research Initiative Program of the National Institute for Food and Agriculture, Project #2011-51181-30850

Chrislyn A. Particka, PhD

Extension Support Specialist

Cornell University

Department of Horticultural Sciences

630 W. North Street

Geneva, NY 14456


315-787-2449 (desk)

315-787-2216 (fax)

Cider Apple Production in VT: March 30, 2015 Educational Meeting

The UVM Apple Program in conjunction with UVM Extension Risk Management Agency will be hosting an educational meeting to discuss opportunities in expanding apple production to meet the needs of the growing (hard) cider market in the region. The meeting will be held at the Woodchuck Cider Tasting Room, 1321 Exchange Street, Middlebury, VT, from 9:00-3:15.

Attendance is free but preregistration is required. To preregister, please reply to this email with your company affiliation and the number of attendees you will be sending. Attendance will be capped at 35 participants. The intended audience is apple growers with interest in growing fruit for the cider industry, as well as commercial Vermont cideries.

There will be an evaluation tasting of the ciders produced in the VT Working Lands Enterprise Fund Project: Apple Market Optimization and Expansion through Value-Added Hard Cider Production. The intent of this tasting is to present potential cidermaking qualities of apples presently grown in Vermont and to consider commercial ciders that may be produced from them.