Using improved crop varieties is one of the quickests and most effective ways to step up yields. Here are the crop varieties recommended for 1954. Each is backed by long and painstaking experiments and research.
Johnson, I. J. and Bragonier, W. H.
"Recommended Crop Varieties for 1954,"
Iowa Farm Science: Vol. 8
, Article 2.
Available at: https://lib.dr.iastate.edu/farmscience/vol8/iss6/2