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Title:   Author  item
                                            Lee, Jungminitem
                                            Steenwerth, Kerri
  Submitted to: Oregon State University Extension Publications
                                    Publication Type: Other
                                    Publication Acceptance Date: 2/14/2011
                                    Publication  Date: 3/16/2011
                                    Citation: Lee, J., Steenwerth, K.L. 2011. To till or not to till? - impact on grape YAN. Oregon State University Extension Publications. 3:6.Interpretive Summary:
                                Technical Abstract: This article covered our preliminary findings on the influence of rootstock and vineyard floor management practices upon 'Cabernet Sauvignon' grape yeast assimilable nitrogen (YAN). Grapes were analyzed for YAN from two rootstocks (110R, high vigor; 420A, low vigor) and three vineyard floor management regimes (mowed then tilled resident vegetation – usual practice in California, and barley cover crops that were either mowed or tilled). Our initial results showed that rootstock choice had a greater affect on grape YAN than either of the three vineyard floor management practices.


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