Work directly with the New OSU/Tri-State University Fertilizer Recommendations. See what's new and see what is the same. Bring a soil test report from your field. Write your own recommendation for lime, phosphorus, potassium and nitrogen. Optional: bring a laptop or tablet. Each class is a repeat of the same agenda. Instructor is Bruce Clevenger, OSU Extension Educator, Certified Crop Adviser. Each class is limited to 12.