Identifying Nutrient Deficiencies

From the April 2007 article "Vine Lines: Grapevine Nutrition And Fertilization."

The following is a list of online resources grape growers can turn to for assistance in identifying nutrient deficiencies.

• Northwest Berry & Grape Information Network http://berrygrape.oregonstate.edu/fruitgrowing/grapes/grapfert.htm
• University of Massachusetts Amherst Department of Plant and Soil Sciences: Soil Testing For Grapevines http://www.umass.edu/plsoils/soiltest/grapetest1.htm
• Lake County (CA) Winegrape Growers: Assessing Vine Nutrient Needs http://lakecountywinegrape.org/growers/nt-nutrient.shtml
• Michigan State University Extension: Information for Scouting Vineyards and Diagnosing Problems http://www.grapes.msu.edu/id.htm