Results of the Iowa Corn Yield Test are published to aid Iowa farmers in selecting corn hybrids . This is the sixty-eighth consecutive year for the test . The presentation of data for the hybrids tested does not imply approval or endorsement by the authors or by the agencies sponsoring or conducting the test. Entries in tables 1 and 2 are designated by brand name and variety.
Iowa State University
Ziegler, K.E., "The 1987 Iowa Corn Yield Test Report, District 3" (1987). Iowa Corn Yield Tests. 125.