The 1957 Iowa Corn Yield Test
Auteur : Charles D. Hutchcroft, Joseph Lee Robinson
Date de publication : 1958
Éditeur : Agricultural and Home Economics Experiment Station, Iowa State College
Nombre de pages : 30
Résumé du livre
"The Iowa Corn Yield test has been conducted annually since 1920. The main purpose of this test is to provide information that will help Iowa farmers select seed of hybrids best adapted for the area in which they live. This bulletin reports the performance of hybrids tested in 1957. Also shown are comparisons of hybrids tested for 2-year, 3-year and 4-year periods." -- p. 3