Northern Research and Demonstration Farm
Authors: Antonio P. Mallarino (Iowa State University) , Louis B. Thompson (Iowa State University) , Matt L. Schnabel (Iowa State University)
A long-term experiment at this Iowa State University (ISU) research farm and many other trials in Iowa fields have assessed the corn and soybean grain yield response to potassium (K) fertilizer placement methods using granulated potash fertilizer (0-0-62). However, no study had evaluated postemergence sidedressing of K fertilizer, although sidedressing of nitrogen fertilizer for corn is a common practice. Therefore, a study was initiated in 2017 to evaluate the value of sidedressed liquid K fertilizer for cornsoybean rotations.
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How to Cite: Mallarino, A. P. , Thompson, L. B. & Schnabel, M. L. (2020) “Soybean Response to Sidedressed Liquid Potassium Fertilizer in Northern Iowa”, Iowa State University Research and Demonstration Farms Progress Reports. 2019(1).