Northern Research and Demonstration Farm

Soybean Response to Sidedressed Liquid Potassium Fertilizer in Northern Iowa

Authors: Antonio P. Mallarino (Iowa State University) , Louis B. Thompson (Iowa State University) , Matt L. Schnabel (Iowa State University)

  • Soybean Response to Sidedressed Liquid Potassium Fertilizer in Northern Iowa

    Northern Research and Demonstration Farm

    Soybean Response to Sidedressed Liquid Potassium Fertilizer in Northern Iowa

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Abstract

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.

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).

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Published on
2020-04-01

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