Crop Testing

Crop Testing Home

Iowa Crop Performance Tests-Corn

Welcome to the homepage of the Iowa Crop Performance Tests for corn and soybeans! On these pages you'll find information about our testing policies and procedures, data from the current and prior testing seasons, and links to related crop testing programs.

We provide direct, unbiased comparisons among a large number of corn hybrids and soybean varieties, in a number of different environments. Data are posted online within 48 hours of harvest, giving you an early look at test results. There is no other way to get this type of high quality plot management, statistical integrity, and timely access to information. Our program is backed by an 80-year history of testing, and the credibility of the Iowa Crop Improvement Association, Iowa State University Extension and Iowa State University.