Southeast Research and Demonstration Farm

Effect of Potassium Fertilization and New Corn Hybrids on Yield and Potassium Uptake in Continuous Corn

Authors: Antonio P. Mallarino (Iowa State University) , Matthew William Clover (Iowa State University) , Kevin Van Dee (Iowa State University)

Abstract

A three-year study was conducted to evaluate the effects of potassium (K) fertilization and new corn hybrids resistant to rootworm on grain yield and K uptake in continuous corn. New corn hybrids may increase yield and change K uptake or fertilization needs through improved traits that increase yield and root efficiency. Therefore, this study was planned to test this hypothesis by comparing continuous corn yield and response to K fertilization of hybrids with and without the rootworm resistant trait.

Keywords: Agronomy

How to Cite: Mallarino, A. P. , Clover, M. W. & Van Dee, K. (2009) “Effect of Potassium Fertilization and New Corn Hybrids on Yield and Potassium Uptake in Continuous Corn”, Iowa State University Research and Demonstration Farms Progress Reports. 2008(1).