Armstrong Memorial Research and Demonstration Farm
Authors: Antonio P. Mallarino (Iowa State University) , Louis B. Thompson (Iowa State University) , Dallas L. Maxwell (Iowa State University)
Previous Iowa research, including a long-term experiment at this research farm and many other fields, has assessed the corn and soybean grain yield response to different potassium (K) fertilizer placement methods using granulated potash fertilizer (0-0-62). However, no study had evaluated post-emergence sidedressing K fertilizer, although nitrogen sidedressing for corn is a common practice. Therefore, a study was initiated at the ISU Armstrong Research Farm, Lewis, in 2018 to evaluate the value of sidedressed liquid K fertilizer for corn and soybean grown in rotation.
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How to Cite: Mallarino, A. P. , Thompson, L. B. & Maxwell, D. L. (2020) “Corn and Soybean Response to Sidedressed Liquid Potassium Fertilizer in Southwest Iowa”, Iowa State University Research and Demonstration Farms Progress Reports. 2019(1).