Soil science is a difficult subject to get your head around.  Years of making "housecalls" to visit with farmers throughout California has honed Kyle Truesdell's ability to translate complex topics of soil science and vine interactions in a manner that anyone can understand.  As an agronomist with Certified Crop Advisor and Pest Control Advisor licenses, Kyle runs the Wilbur-Ellis offices in Napa and Sonoma.  He still makes time to get out and visit vineyards, and that is how I met him this past October at Seavey Vineyard.  After peppering him with nearly every soil question I had ever thought of, I realized that our conversation could be helpful to many, and that lead to the recording of this episode.