Are traditional “critical values” still the best guide for vineyard nutrient management? In this episode, Dr. Matthew Fidelibus joins Dr. Patty Skinkis to explore how applied research is reshaping our understanding of vine nutrition. From nutrient budgeting and rootstock effects to the role of leaf age in remote sensing, this conversation offers practical insights to make data-driven nutrition decisions for vine health and fruit quality and highlights future areas of research. Podcast transcript is available at http://beav.es/5GD.

Projects and resources mentioned in the podcast:

Kearney Agricultural Research and Extension Center

UC Digital Ag Lab

Related podcast episodes:

Season 1, Episode 8 | Honoring the Past, Building the Future (Matt Fidelibus)

Season 1, Episode 3 | The Grapevine “Blood Test” (Paul Schreiner)

Season 1, Episode 7 | Precision Tools for All Vineyards, Great and Small (Ali Pourreza)

Season 2, Episode 7 | Precision Ag Requires Sensors and Models with Feedback Loops (Ali Pourreza)

We need your feedback! If you have been enjoying the podcast, please complete this brief survey: https://beav.es/GuB

This podcast is funded through the United States Department of Agriculture's National Institute of Food and Agriculture’s (NIFA) Specialty Crop Research Initiative Coordinated Agricultural Projects (CAP) grant. Project Award Number: 2020-51181-32159. 

Audio mixed by John Adams.

Dr. Nick Dokoozlian of Gallo shares how cross-sector collaboration is transforming vineyard nutrition management. From remote sensing to sustainability, he highlights the power of data, teamwork, and long-term vision through projects like HiRes and GrapeX to assist growers with complex decision-making. Podcast transcript is available at http://beav.es/5GD.

Projects referenced in the podcast:

• HiRes Vineyard Nutrition Project
• GrapeX – Grape Remote sensing Atmospheric Profile and Evaporation eXperiment
• OpenET-open access satellite ET data for water management

Related podcast episodes:

• Season 1, Episode 1 | How it All Started (Russ Smithyman)
• Season 3, Episode 4 | Vineyard Nitrogen and Potassium Impacts on Wine Quality (Emily Hodson)
• Season 3, Episode 5 | Tailoring Vineyard Nutrition from Soil to Wine (Anji Perry)
• Season 3, Episode 6 | Building Bridges: How NGRA Connects Science and Industry (Donnell Brown)

We need your feedback! If you have been enjoying the podcast, please complete this brief survey: https://beav.es/GuB

Follow the HiRes Vineyard Nutrition Project on social media!

• Instagram: https://www.instagram.com/hi_res_vineyardnutrition/
• LinkedIn:  https://www.linkedin.com/company/hires-vineyard-nutrition/ 

This podcast is funded through the National Institute of Food and Agriculture’s (NIFA) Specialty Crop Research Initiative Coordinated Agricultural Projects (CAP) grant. Project Award Number: 2020-51181-32159. 

Audio mixed by John Adams.

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 available at http://beav.es/5GD.

For more information NGRA and supported projects

• Website: https://graperesearch.org/
• Facebook: https://www.facebook.com/graperesearch/
• X: https://twitter.com/GrapeResearch
• LinkedIn: https://www.linkedin.com/company/graperesearch/
• The Efficient Vineyard Project
• VitisGen
• PhytoPatholoBot (PPB) Project

Related podcast episodes:

• Season 1, Episode 1 | How it All Started (Russ Smithyman)
• Season 3, Episode 4 | Vineyard Nitrogen and Potassium Impacts on Wine Quality (Emily Hodson)
• Season 3, Episode 5 | Tailoring Vineyard Nutrition from Soil to Wine (Anji Perry)

We need your feedback! If you have been enjoying the podcast, please complete this brief survey: https://beav.es/GuB

Follow the HiRes Vineyard Nutrition Project on social media!

• Instagram: https://www.instagram.com/hi_res_vineyardnutrition/
• LinkedIn:  https://www.linkedin.com/company/hires-vineyard-nutrition/ 

This podcast is funded through the National Institute of Food and Agriculture’s (NIFA) Specialty Crop Research Initiative Coordinated Agricultural Projects (CAP) grant. Project Award Number: 2020-51181-32159. 

Audio mixed by John Adams.

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 health and wine quality, and how site-specific strategies and minimal fertilization can lead to better outcomes. She also highlights the promise of precision viticulture and the need for updated nutrient guidelines to support long-term vineyard productivity and sustainability.

Podcast transcript is available at http://beav.es/5GD.

For more information about Anji Perry:

• J. Lohr Vineyards & Wines
• National Grape Research Alliance
• Women Who Influence The Wine World

Related podcast episodes:

• Season 1, Episode 1 | How it All Started (Russ Smithyman)
• Season 3, Episode 4 | Vineyard Nitrogen and Potassium Impacts on Wine Quality (Emily Hodson)

We need your feedback! If you have been enjoying the podcast, please complete this brief survey: https://beav.es/GuB

Follow the HiRes Vineyard Nutrition Project on social media!

• Instagram: https://www.instagram.com/hi_res_vineyardnutrition/
• LinkedIn:  https://www.linkedin.com/company/hires-vineyard-nutrition/ 

This podcast is funded through the National Institute of Food and Agriculture’s (NIFA) Specialty Crop Research Initiative Coordinated Agricultural Projects (CAP) grant. Project Award Number: 2020-51181-32159. 

Audio mixed by John Adams.

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, science-based solutions for viticulture and winemaking improvements in Virginia and beyond. Podcast transcript is available at http://beav.es/5GD.

Related podcast episodes:

• Season 1, Episode 1 | How it All Started (Russ Smithyman)
• Season 1, Episode 11 | Vineyard to Winery – Looking Beyond YAN (Amanda Stewart)
• Season 2, Episode 11| Virginia Nitrogen Trials – A Tale of Two Cultivars (Dana Acimovic)
• Season 2, Episode 9 | Does Vineyard Nitrogen Impact Wine sensory? (Megan Mershon)

We need your feedback! If you have been enjoying the podcast, please complete this brief survey: https://beav.es/GuB

This podcast is funded through the National Institute of Food and Agriculture’s (NIFA) Specialty Crop Research Initiative Coordinated Agricultural Projects (CAP) grant. Project Award Number: 2020-51181-32159. 

Audio mixed by John Adams.

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.

We need your feedback! If you have been enjoying the podcast, please complete this brief survey: https://beav.es/GuB

Related podcast episodes:

• Season 2, Episode 10:  Tracing Nitrogen from Vine to Berry (Pierre Davadant)
• Season 3, Episode 1:  Grapevine Capacity for Change (Markus Keller)
• Season 2, Episode 6:  Thinking Outside the Box for Nutrient Sampling (Nataliya Shcherbatyuk)
• Season 1, Episode 2:  Vineyard Nutrition in Arid Climates (Markus Keller)

This podcast is funded through the National Institute of Food and Agriculture’s (NIFA) Specialty Crop Research Initiative Coordinated Agricultural Projects (CAP) grant. Project Award Number: 2020-51181-32159. 

Audio mixed by John Adams.

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 vineyard nutrition management and take them to the next step. Podcast transcript is available at http://beav.es/5GD.

We need your feedback! If you have been enjoying the podcast, please complete a brief survey online at https://beav.es/GuB

This podcast is funded through the National Institute of Food and Agriculture’s (NIFA) Specialty Crop Research Initiative Coordinated Agricultural Projects (CAP) grant. Project Award Number: 2020-51181-32159. 

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 paired with vine physiological respones. Podcast transcript is available at http://beav.es/5GD.

We need your feedback! If you have been enjoying the podcast, please complete this brief survey: https://oregonstate.qualtrics.com/jfe/form/SV_bvkyFYGqwy23AWi

Do grape cultivars have different responses to nutrients? Do we need to sample different tissues based on cultivar? Does the time of day matter for tissue sampling? In this episode, Dana Acimovic of Virginia Tech's Viticulture Team describes the research to address these questions. Podcast transcript and details are available at http://beav.es/5GD.

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! Podcast transcript and details are available at http://beav.es/5GD.