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, Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, US, 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