The Corn Outreach & Research Network (CORN) is a national working group of Extension Corn Specialists working collaboratively. They collectively evaluate the performance of biological products used at planting and in-season in corn production systems throughout the U.S. Researchers are evaluating four categories of biological products, including phosphorus products, humic acids, biostimulants and nitrogen products. Nebraska trials include 10 treatments with six replications at research sites in Clay Center and North Platte.