This publication provides direction on estimating soil moisture by the "feel and appearance" method; taking a some soil and rolling it up in a ball then squeezing it between your thumb and forefinger to form a ribbon and noting how it appears and feels. Compare what you see with photographs and/or charts to estimate percent water available and the inches depleted below field capacity.
In most years, vineyards in Oregon start the season with a full soil water profile. As the season progresses, the soil dries out. Here's how to gauge a vineyard's water needs and methods for meeting them.
This article describes how to determine vineyard nutrient needs through grapevine tissue and soil sampling. It also provides tissue testing guidelines.
This report includes preliminary data for the second of a three-year study. Since this year was a record drought year, results could vary from a normal rainfall year. Finalized data and observations will be released in future as peer-reviewed studies, reports, and extension articles. For more information, please visit the RDFA project page. .
This is a quick reference for those interested in establishing a vineyard in Oregon. A step-by-step format guides readers to the basic information they would need to consider before developing a vineyard, including ...
This collection has information on soil testing and ferilizing, renovation. forage management , hay, irrigation, feeding values, forage types, forage anti-quality factors, leasing pastures and more.
When it comes to growing hay, providing well-timed nutrients in the form of fertilizer will maximize production and quality at harvest time. Here's a guide to which nutrients to apply and when to do it.
This is a guide that can be used by wine grape growers to interpret their vine tissue nutrient analysis results to determine nutrient sufficiency, deficiency or excess.