Badarch, Bayarbat, Michael P. Popp, Aurelie M. Poncet, Shelby T. Rider, and Nathan A. Slaton. 2023. “Determining Economic Optimum Soil Sampling Density for Potassium Fertilizer Management in Soybean: A Case Study in the U.S. Mid-South”. Research on World Agricultural Economy 4 (4):104-14. https://doi.org/10.36956/rwae.v4i4.985.