- Good to Know: Of balance and bounties with vineyard nutrition management (Good Fruit Grower)
Posters from the 75th Annual American Society for Enology and Viticulture National Conference, Portland, OR (June 18-20, 2024)
- HiRes Vineyard Nutrition Project Seeks to Develop New Tools and Refine Nutrient Thresholds
- Evaluating Nitrogen, Potassium, and Magnesium Fertilization Effects on Vine Nutrient Status and Productivity in Western Oregon
Project Progress Reports
- Research Team Report – January to June 2024
- Research Team Progress Report – Year 2 (September 2022)
- Research Team Progress Report – Year 1 (July 2021)
Specific Project Findings Summaries by Year
2022
- Washington State Grape Society Annual Meeting, Nov 2022 – The proceedings include slides from presentations given by WSU research team members on nutrient sampling protocols in vineyards and sensors used for nutrient monitoring.
- Assessing Grapevine Nitrogen Status Using Proximal Hyperspectral Imaging, poster presented at the 2022 Vineyard Technology Field Day in Turner, Oregon
2021
US Grape Industry Survey on Nutrient Management
Grape growers nation-wide completed a survey to determine current vineyard nutrient management practices. The survey included main theme questions, including the following:
- How they determine if a nutrient problem exists
- Nutrients of greatest concern
- How they fertilize
- Technology applications
Read a summary of the results here.
Published Research Papers from the Project
- Box Sampling: A New Spatial Sampling Method for Grapevine Macronutrients Using Sentinel-1 and Sentinel-2 Satellite Images
- Nitrogen Retrieval in Grapevine (Vitis vinifera L.) Canopy by Hypersectral Imaging
- Assessing Grapevine Nutrient Status from Unmanned Aerial System (UAS) Hyperspectral Imagery
- Nitrogen Retrieval in Grapevine (Vitis vinifera L.) Leaves by Hyperspectral Sensing
- Impact of Sun-view Geometry on Canopy Spectral Reflectance Variability
