Mike Trought’s Post

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Adjunct Associate Professor at Lincoln University

Just published in the last edition of the Wine and Viticulture Journal. Bramley, R.; Ouzman, J.; Sturman, A.; Grealish, G.; Ratcliff, C.; Trought, M. (2024) Combining vineyard performance metrics with soil and climate data to better understand regional terroir: An example from Marlborough, New Zealand. Wine & Viticulture Journal 39 (3), 71-81. Rob Bramley and I (with others) have been working for about 15 years to understand the terroir of Marlborough on both a vineyard and regional scale, publishing seven peer reviewed papers, and numerous conference proceedings in Australia, France the USA and beyond. On a vineyard scale, the influence of soil texture, within a vineyard demonstrated that vines growing on stoney phases ripened earlier, had reduced vegetative growth, but vine yields were unaffected. Bramley, R.G.V.; Ouzman, J.; Trought, M.C.T.; Neal, S.M.; Bennett, J.S. (2019) Spatio-temporal variability in vine vigour and yield in a Marlborough Sauvignon Blanc vineyard. Australian Journal of Grape and Wine Research 25, 430-438, DOI: 10.1111/ajgw.12408. Bramley, R.G.V.; Trought, M.C.T.; Praat, J.P. (2011) Vineyard variability in Marlborough, New Zealand: characterising variation in vineyard performance and options for the implementation of Precision Viticulture. Australian Journal of Grape and Wine Research 17 (1), 83-89, DOI: 10.1111/j.1755-0238.2010.00119.x. Trought, M.C.T.; Bramley, R.G.V. (2011) Vineyard variability in Marlborough, New Zealand: characterising spatial and temporal changes in fruit composition and juice quality in the vineyard. Australian Journal of Grape and Wine Research 17 (1), 72-82, DOI: 10.1111/j.1755-0238.2010.00120.x. On a regional scale, where data from over 1000 vineyards was used to map harvest date and yield, when compared to the central Wairau Valley, higher yields were recorded on the silt soils of the lower Wairau Plains, with lower yields in the Rapaura area, upper Wairau and Rarangi, and in particular the Awatere Valley. Harvest generally started in the Central Wairau valley, and got later as one moved into the cooler areas of the Wairau and Awatere valley. Bramley, R.G.V.; Ouzman, J.; Sturman, A.; Grealish, G.J.; Ratcliff, C.E.M.; Trought, M.C.T. (2023) Underpinning terroir with data: Integrating vineyard performance metrics with soil and climate data to better understand within-region variation in Marlborough, New Zealand. Australian Journal of Grape and Wine Research Article ID 8811402, Article ID 8811402, DOI: https://lnkd.in/gkKmJNxy.

Underpinning Terroir with Data: Integrating Vineyard Performance Metrics with Soil and Climate Data to Better Understand Within‐Region Variation in Marlborough, New Zealand

Underpinning Terroir with Data: Integrating Vineyard Performance Metrics with Soil and Climate Data to Better Understand Within‐Region Variation in Marlborough, New Zealand

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