HiRes Vineyard Nutrition

In this episode, Donnell Brown, President of the National Grape Research Alliance, joins Dr. Patty Skinkis to explore how NGRA bridges science and industry. Learn how collaborative research initiatives like the HiRes Vineyard Nutrition Project are developed, funded, and implemented to drive innovation across the American grape industries. Podcast transcript is a...

Anji Perry of J. Lohr Vineyards shares her practical approach to vineyard nutrition, emphasizing sustainability and precision. She outlines five core factors she uses to guide nutrient decisions: soil quality, water quality, YAN (Yeast Assimilable Nitrogen), leaf analysis, and visual symptoms. Anji discusses the importance of nitrogen and potassium in vine healt...

Emily Hodson, winemaker at Veritas Vineyard and Winery, highlights the role of nitrogen and potassium in wine quality. She addresses challenges with high potassium in Virginia soils and promotes organic nutrients and precise vineyard management. Her involvement in Winemakers Research Exchange and the HiRes Vineyard Nutrition Project, is leading to practical, sci...

How does vineyard nutrition impact wines? Learn from Dr. Jim Harbertson the expected and unexpected wine outcomes of nutrient trials conducted in Washington vineyards as part of the HiRes Vineyard Nutrition Project. Hear about wine anthocyanins, amino acids, phenolics, and tannins as impacted by nitrogen. Podcast transcript is available at http://beav.es/5GD.

How close are we to having practical sensor solutions for growers to use in their vineyards? In this episode, Dr. Rob Chancia discusses the benefits, drawbacks, and costs of different technologies explored in the project. You will get a glimpse of what is needed to achieve integrated vineyard maps for vin...

How much fertilizer is needed to change vine nutrient status? In this episode, Dr. Keller shares surprising findings from his team’s work on nitrogen and potassium in field and potted vine studies. They used traditional and alterative tissue sampling with sensor technology to understand nutrient status pa...

Foliar nitrogen application is one way wine grape growers can improve berry and must yeast assimilable nitrogen (YAN). In this episode, Pierre Davadant, graduate research assistant in Dr. Markus Keller’s Lab at Washington State University, describes his research to trace the destination of nitrogen through grapevines, with a focus on foliar nitrogen applications. Listen to find out where nitrogen ends up! Podca...

We know nitrogen is important for a healthy fermentation, but does the source of nitrogen matter? Should it be added in the vineyard or the winery? In this episode, Megan Mershon, graduate research assistant at Virginia Tech, describes research they are conducting to compare wine sensory response from nitrogen trials they’ve conducted in the HiRes Vineyard Nutrition Project. Podcast transcript and details are a...

Working with crop specialists is important for precision ag tool development. In this episode, Dr. Manoj Karkee talks about his team’s collaboration with others in the HiRes Vineyard Nutrition Project to develop ground-based sensors for vineyard nutrients. He also talks about other projects to make farming more efficient, including shoot thinning and crop yield estimation. Podcast transcript and details are ava...

In this episode, we break the status quo and discuss alternative grapevine tissues being investigated for nutrient sampling. Dr. Nataliya Shcherbatyuk, post-doctoral researcher at Washington State University and the HiRes Team’s Project Manager, describes the research she conducted to understand the validity of other tissues in correlating with standard methods and how that project led to interesting findings a...

Getting a representative tissue sample from the vineyard can be challenging without some prior information or knowledge of the vineyard property. In this episode, Manushi Trivedi, Cornell University PhD student, talks about the work they are doing to pin-point where to sample in as few locations as possible to best represent vineyard blocks in nutrient sampling. Podcast transcript is available at http://beav.es...

What is the economic value of making good farm management decisions? In this episode, Alejandro Abarca, Graduate Research Assistant and PhD candidate at Oregon State University, describes research conducted to quantify economic value of vine nutrient management using grapevine tissue nutrition data and end-of-season yields to develop a model to help predict yield impacts in the future. Transcript is available a...

In this episode the microphone is flipped on our host, Dr. Patty Skinkis, HiRes Vineyard Nutrition Project Co-Director, who speaks about her path to viticulture research, Extension, and this project. She also speaks to the importance of sharing research results and developing communications streams to inform and build research that impacts industry. 

Podcast transcript is available at http:...

Vineyard nutrient management often focuses on nitrogen which is important for berry and must nitrogen that feed the fermentation. However, there is more that we need to learn about nitrogen in wine. In this episode, Dr. Amanda Stewart, Associate professor in the Department of Food Science and Technology at Virginia Tech, talks about her research to understand the components of nitrogen that lead to sensory impa...

Economic sustainability is important to all farm operations. How do we determine economic value of nutrient management in the context of the larger production system or into the future? Dr. John Woodill, Research Associate at Oregon State University’s College of Earth, Ocean, and Atmospheric Sciences, describes how econometric research explores farm production, yield, and climate data to understand the impact o...