Northeast Research and Demonstration Farm
A 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, the 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.
Iowa State University
Mallarino, Antonio P. and Pecinovsky, Kenneth T., "Effect of Potassium Fertilization and New Corn Hybrids on Yield and Potassium Uptake in Continuous Corn" (2011). Iowa State Research Farm Progress Reports. 243.