May 19, 2022 R&D Committee Meeting

Dr. Kevin Usher, AAFC - Summerland Research and Development - Foliar urea application to increase berry yeast assimilable nitrogen content High nitrogen content in grapevines early in grape development can result in vegetative flavours. Mid to late season foliar urea applications were used to increase N in fruit avoiding high N early season and improving YAN content for winemaking.