Using improved crop varieties is one of the quickest and most effecitve ways to step up yields. Here are crop varieties recommended for you in 1953. Each is backed by long and painstaking experiments and research.
Johnson, I. J. and Bragonier, W. H.
"Recommended Crop Varieties for 1953,"
Iowa Farm Science: Vol. 7
, Article 3.
Available at: https://lib.dr.iastate.edu/farmscience/vol7/iss7/3