In-Season Diagnosis of Potassium Deficiency in Soybean Using Leaf and Petiole Potassium Concentrations.
Rasel Parvej, Virginia Tech Tidewater Agricultural Research & Extension Center, Suffolk, VA, Nathan A. Slaton, Department of Crop, Soil, and Environmental Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR, Trenton L. Roberts, University of Arkansas, Fayetteville, AR, US, Larry C. Purcell, Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, Russell E. DeLong, University of Arkansas, Fayetteville, AR and Matthew S. Fryer, University of Arkansas, Little Rock, AR